This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Update to a file missed in change #32008.
[perl5.git] / lib / CPAN.pm
index e4f1d62..dc8d472 100644 (file)
@@ -1,14 +1,15 @@
 # -*- Mode: cperl; coding: utf-8; cperl-indent-level: 4 -*-
 use strict;
 package CPAN;
-$CPAN::VERSION = '1.88_55';
-$CPAN::VERSION = eval $CPAN::VERSION;
+$CPAN::VERSION = '1.9203';
+$CPAN::VERSION = eval $CPAN::VERSION if $CPAN::VERSION =~ /_/;
 
 use CPAN::HandleConfig;
 use CPAN::Version;
 use CPAN::Debug;
 use CPAN::Queue;
 use CPAN::Tarzip;
+use CPAN::DeferedCode;
 use Carp ();
 use Config ();
 use Cwd ();
@@ -23,6 +24,7 @@ use File::Find;
 use File::Path ();
 use File::Spec ();
 use FileHandle ();
+use Fcntl qw(:flock);
 use Safe ();
 use Sys::Hostname qw(hostname);
 use Text::ParseWords ();
@@ -33,19 +35,21 @@ use Text::Wrap ();
 BEGIN {
     if (File::Spec->can("rel2abs")) {
         for my $inc (@INC) {
-            $inc = File::Spec->rel2abs($inc);
+            $inc = File::Spec->rel2abs($inc) unless ref $inc;
         }
     }
 }
 no lib ".";
 
 require Mac::BuildTools if $^O eq 'MacOS';
+$ENV{PERL5_CPAN_IS_RUNNING}=$$;
+$ENV{PERL5_CPANPLUS_IS_RUNNING}=$$; # https://rt.cpan.org/Ticket/Display.html?id=23735
 
 END { $CPAN::End++; &cleanup; }
 
 $CPAN::Signal ||= 0;
 $CPAN::Frontend ||= "CPAN::Shell";
-unless (@CPAN::Defaultsites){
+unless (@CPAN::Defaultsites) {
     @CPAN::Defaultsites = map {
         CPAN::URL->new(TEXT => $_, FROM => "DEF")
     }
@@ -55,18 +59,35 @@ unless (@CPAN::Defaultsites){
 # $CPAN::iCwd (i for initial) is going to be initialized during find_perl
 $CPAN::Perl ||= CPAN::find_perl();
 $CPAN::Defaultdocs ||= "http://search.cpan.org/perldoc?";
-$CPAN::Defaultrecent ||= "http://search.cpan.org/recent";
+$CPAN::Defaultrecent ||= "http://search.cpan.org/uploads.rdf";
+$CPAN::Defaultrecent ||= "http://cpan.uwinnipeg.ca/htdocs/cpan.xml";
 
-
-use vars qw($VERSION @EXPORT $AUTOLOAD
-            $DEBUG $META $HAS_USABLE $term
-            $GOTOSHELL
-            $Signal $Suppress_readline $Frontend
-            @Defaultsites $Have_warned $Defaultdocs $Defaultrecent
+# our globals are getting a mess
+use vars qw(
+            $AUTOLOAD
             $Be_Silent
+            $CONFIG_DIRTY
+            $Defaultdocs
+            $Echo_readline
+            $Frontend
+            $GOTOSHELL
+            $HAS_USABLE
+            $Have_warned
+            $MAX_RECURSION
+            $META
+            $RUN_DEGRADED
+            $Signal
+            $SQLite
+            $Suppress_readline
+            $VERSION
             $autoload_recursion
+            $term
+            @Defaultsites
+            @EXPORT
            );
 
+$MAX_RECURSION = 32;
+
 @CPAN::ISA = qw(CPAN::Debug Exporter);
 
 # note that these functions live in CPAN::Shell and get executed via
@@ -78,8 +99,11 @@ use vars qw($VERSION @EXPORT $AUTOLOAD
              cvs_import
              expand
              force
+             fforce
              get
              install
+             install_tested
+             is_tested
              make
              mkmyconfig
              notest
@@ -89,9 +113,10 @@ use vars qw($VERSION @EXPORT $AUTOLOAD
              recompile
              report
              shell
+             smoke
              test
              upgrade
-           );
+            );
 
 sub soft_chdir_with_alternatives ($);
 
@@ -117,7 +142,7 @@ sub soft_chdir_with_alternatives ($);
         my(%export);
         @export{@EXPORT} = '';
         CPAN::HandleConfig->load unless $CPAN::Config_loaded++;
-        if (exists $export{$l}){
+        if (exists $export{$l}) {
             CPAN::Shell->$l(@_);
         } else {
             die(qq{Unknown CPAN command "$AUTOLOAD". }.
@@ -140,49 +165,41 @@ sub shell {
 
     local($^W) = 1;
     unless ($Suppress_readline) {
-       require Term::ReadLine;
+        require Term::ReadLine;
         if (! $term
             or
             $term->ReadLine eq "Term::ReadLine::Stub"
            ) {
             $term = Term::ReadLine->new('CPAN Monitor');
         }
-       if ($term->ReadLine eq "Term::ReadLine::Gnu") {
-           my $attribs = $term->Attribs;
-            $attribs->{attempted_completion_function} = sub {
-                &CPAN::Complete::gnu_cpl;
-            }
-       } else {
-           $readline::rl_completion_function =
-               $readline::rl_completion_function = 'CPAN::Complete::cpl';
-       }
+        if ($term->ReadLine eq "Term::ReadLine::Gnu") {
+            my $attribs = $term->Attribs;
+            $attribs->{attempted_completion_function} = sub {
+                &CPAN::Complete::gnu_cpl;
+            }
+        } else {
+            $readline::rl_completion_function =
+                $readline::rl_completion_function = 'CPAN::Complete::cpl';
+        }
         if (my $histfile = $CPAN::Config->{'histfile'}) {{
             unless ($term->can("AddHistory")) {
                 $CPAN::Frontend->mywarn("Terminal does not support AddHistory.\n");
                 last;
             }
-            my($fh) = FileHandle->new;
-            open $fh, "<$histfile" or last;
-            local $/ = "\n";
-            while (<$fh>) {
-                chomp;
-                $term->AddHistory($_);
-            }
-            close $fh;
+            $META->readhist($term,$histfile);
         }}
         for ($CPAN::Config->{term_ornaments}) { # alias
             local $Term::ReadLine::termcap_nowarn = 1;
             $term->ornaments($_) if defined;
         }
-       # $term->OUT is autoflushed anyway
-       my $odef = select STDERR;
-       $| = 1;
-       select STDOUT;
-       $| = 1;
-       select $odef;
+        # $term->OUT is autoflushed anyway
+        my $odef = select STDERR;
+        $| = 1;
+        select STDOUT;
+        $| = 1;
+        select $odef;
     }
 
-    # no strict; # I do not recall why no strict was here (2000-09-03)
     $META->checklock();
     my @cwd = grep { defined $_ and length $_ }
         CPAN::anycwd(),
@@ -190,11 +207,10 @@ sub shell {
                     File::Spec->rootdir();
     my $try_detect_readline;
     $try_detect_readline = $term->ReadLine eq "Term::ReadLine::Stub" if $term;
-    my $rl_avail = $Suppress_readline ? "suppressed" :
-       ($term->ReadLine ne "Term::ReadLine::Stub") ? "enabled" :
-           "available (try 'install Bundle::CPAN')";
-
-    unless ($CPAN::Config->{'inhibit_startup_message'}){
+    unless ($CPAN::Config->{inhibit_startup_message}) {
+        my $rl_avail = $Suppress_readline ? "suppressed" :
+            ($term->ReadLine ne "Term::ReadLine::Stub") ? "enabled" :
+                "available (maybe install Bundle::CPAN or Bundle::CPANxxl?)";
         $CPAN::Frontend->myprint(
                                  sprintf qq{
 cpan shell -- CPAN exploration and modules installation (v%s)
@@ -208,107 +224,135 @@ ReadLine support %s
     my($continuation) = "";
     my $last_term_ornaments;
   SHELLCOMMAND: while () {
-       if ($Suppress_readline) {
-           print $prompt;
-           last SHELLCOMMAND unless defined ($_ = <> );
-           chomp;
-       } else {
-           last SHELLCOMMAND unless
+        if ($Suppress_readline) {
+            if ($Echo_readline) {
+                $|=1;
+            }
+            print $prompt;
+            last SHELLCOMMAND unless defined ($_ = <> );
+            if ($Echo_readline) {
+                # backdoor: I could not find a way to record sessions
+                print $_;
+            }
+            chomp;
+        } else {
+            last SHELLCOMMAND unless
                 defined ($_ = $term->readline($prompt, $commandline));
-       }
-       $_ = "$continuation$_" if $continuation;
-       s/^\s+//;
-       next SHELLCOMMAND if /^$/;
-       $_ = 'h' if /^\s*\?/;
-       if (/^(?:q(?:uit)?|bye|exit)$/i) {
-           last SHELLCOMMAND;
-       } elsif (s/\\$//s) {
-           chomp;
-           $continuation = $_;
-           $prompt = "    > ";
-       } elsif (/^\!/) {
-           s/^\!//;
-           my($eval) = $_;
-           package CPAN::Eval;
+        }
+        $_ = "$continuation$_" if $continuation;
+        s/^\s+//;
+        next SHELLCOMMAND if /^$/;
+        s/^\s*\?\s*/help /;
+        if (/^(?:q(?:uit)?|bye|exit)$/i) {
+            last SHELLCOMMAND;
+        } elsif (s/\\$//s) {
+            chomp;
+            $continuation = $_;
+            $prompt = "    > ";
+        } elsif (/^\!/) {
+            s/^\!//;
+            my($eval) = $_;
+            package CPAN::Eval;
             use strict;
-           use vars qw($import_done);
-           CPAN->import(':DEFAULT') unless $import_done++;
-           CPAN->debug("eval[$eval]") if $CPAN::DEBUG;
-           eval($eval);
-           warn $@ if $@;
-           $continuation = "";
-           $prompt = $oprompt;
-       } elsif (/./) {
-           my(@line);
+            use vars qw($import_done);
+            CPAN->import(':DEFAULT') unless $import_done++;
+            CPAN->debug("eval[$eval]") if $CPAN::DEBUG;
+            eval($eval);
+            warn $@ if $@;
+            $continuation = "";
+            $prompt = $oprompt;
+        } elsif (/./) {
+            my(@line);
             eval { @line = Text::ParseWords::shellwords($_) };
             warn($@), next SHELLCOMMAND if $@;
             warn("Text::Parsewords could not parse the line [$_]"),
                 next SHELLCOMMAND unless @line;
-           $CPAN::META->debug("line[".join("|",@line)."]") if $CPAN::DEBUG;
-           my $command = shift @line;
-           eval { CPAN::Shell->$command(@line) };
-           warn $@ if $@;
-            if ($command =~ /^(make|test|install|force|notest|clean|report|upgrade)$/) {
+            $CPAN::META->debug("line[".join("|",@line)."]") if $CPAN::DEBUG;
+            my $command = shift @line;
+            eval { CPAN::Shell->$command(@line) };
+            if ($@) {
+                my $err = "$@";
+                if ($err =~ /\S/) {
+                    require Carp;
+                    require Dumpvalue;
+                    my $dv = Dumpvalue->new();
+                    Carp::cluck(sprintf "Catching error: %s", $dv->stringify($err));
+                }
+            }
+            if ($command =~ /^(
+                             # classic commands
+                             make
+                             |test
+                             |install
+                             |clean
+
+                             # pragmas for classic commands
+                             |ff?orce
+                             |notest
+
+                             # compounds
+                             |report
+                             |smoke
+                             |upgrade
+                            )$/x) {
+                # only commands that tell us something about failed distros
                 CPAN::Shell->failed($CPAN::CurrentCommandId,1);
             }
             soft_chdir_with_alternatives(\@cwd);
-           $CPAN::Frontend->myprint("\n");
-           $continuation = "";
+            $CPAN::Frontend->myprint("\n");
+            $continuation = "";
             $CPAN::CurrentCommandId++;
-           $prompt = $oprompt;
-       }
+            $prompt = $oprompt;
+        }
     } continue {
-      $commandline = ""; # I do want to be able to pass a default to
-                         # shell, but on the second command I see no
-                         # use in that
-      $Signal=0;
-      CPAN::Queue->nullify_queue;
-      if ($try_detect_readline) {
-       if ($CPAN::META->has_inst("Term::ReadLine::Gnu")
-           ||
-           $CPAN::META->has_inst("Term::ReadLine::Perl")
-          ) {
-           delete $INC{"Term/ReadLine.pm"};
-           my $redef = 0;
-           local($SIG{__WARN__}) = CPAN::Shell::paintdots_onreload(\$redef);
-           require Term::ReadLine;
-           $CPAN::Frontend->myprint("\n$redef subroutines in ".
-                                    "Term::ReadLine redefined\n");
-            $GOTOSHELL = 1;
-       }
-      }
-      if ($term and $term->can("ornaments")) {
-          for ($CPAN::Config->{term_ornaments}) { # alias
-              if (defined $_) {
-                  if (not defined $last_term_ornaments
-                      or $_ != $last_term_ornaments
-                     ) {
-                      local $Term::ReadLine::termcap_nowarn = 1;
-                      $term->ornaments($_);
-                      $last_term_ornaments = $_;
-                  }
-              } else {
-                  undef $last_term_ornaments;
-              }
-          }
-      }
-      if ($CPAN::DEBUG && $CPAN::DEBUG & $CPAN::DEBUG{CPAN}) {
-          # debugging 'incommandcolor': should always be off at the end of a command
-          # (incommandcolor is used to detect recursive dependencies)
-          for my $class (qw(Module Distribution)) {
-              for my $dm (keys %{$CPAN::META->{readwrite}{"CPAN::$class"}}) {
-                  next unless $CPAN::META->{readwrite}{"CPAN::$class"}{$dm}{incommandcolor};
-                  CPAN->debug("BUG: $class '$dm' was in command state, resetting");
-                  delete $CPAN::META->{readwrite}{"CPAN::$class"}{$dm}{incommandcolor};
-              }
-          }
-      }
-      if ($GOTOSHELL) {
-          $GOTOSHELL = 0; # not too often
-          $META->savehist if $CPAN::term && $CPAN::term->can("GetHistory");
-          @_ = ($oprompt,"");
-          goto &shell;
-      }
+        $commandline = ""; # I do want to be able to pass a default to
+                           # shell, but on the second command I see no
+                           # use in that
+        $Signal=0;
+        CPAN::Queue->nullify_queue;
+        if ($try_detect_readline) {
+            if ($CPAN::META->has_inst("Term::ReadLine::Gnu")
+                ||
+                $CPAN::META->has_inst("Term::ReadLine::Perl")
+            ) {
+                delete $INC{"Term/ReadLine.pm"};
+                my $redef = 0;
+                local($SIG{__WARN__}) = CPAN::Shell::paintdots_onreload(\$redef);
+                require Term::ReadLine;
+                $CPAN::Frontend->myprint("\n$redef subroutines in ".
+                                         "Term::ReadLine redefined\n");
+                $GOTOSHELL = 1;
+            }
+        }
+        if ($term and $term->can("ornaments")) {
+            for ($CPAN::Config->{term_ornaments}) { # alias
+                if (defined $_) {
+                    if (not defined $last_term_ornaments
+                        or $_ != $last_term_ornaments
+                    ) {
+                        local $Term::ReadLine::termcap_nowarn = 1;
+                        $term->ornaments($_);
+                        $last_term_ornaments = $_;
+                    }
+                } else {
+                    undef $last_term_ornaments;
+                }
+            }
+        }
+        for my $class (qw(Module Distribution)) {
+            # again unsafe meta access?
+            for my $dm (keys %{$CPAN::META->{readwrite}{"CPAN::$class"}}) {
+                next unless $CPAN::META->{readwrite}{"CPAN::$class"}{$dm}{incommandcolor};
+                CPAN->debug("BUG: $class '$dm' was in command state, resetting");
+                delete $CPAN::META->{readwrite}{"CPAN::$class"}{$dm}{incommandcolor};
+            }
+        }
+        if ($GOTOSHELL) {
+            $GOTOSHELL = 0; # not too often
+            $META->savehist if $CPAN::term && $CPAN::term->can("GetHistory");
+            @_ = ($oprompt,"");
+            goto &shell;
+        }
     }
     soft_chdir_with_alternatives(\@cwd);
 }
@@ -338,26 +382,139 @@ Trying to chdir to "$cwd->[1]" instead.
     }
 }
 
+sub _flock {
+    my($fh,$mode) = @_;
+    if ($Config::Config{d_flock}) {
+        return flock $fh, $mode;
+    } elsif (!$Have_warned->{"d_flock"}++) {
+        $CPAN::Frontend->mywarn("Your OS does not support locking; continuing and ignoring all locking issues\n");
+        $CPAN::Frontend->mysleep(5);
+        return 1;
+    } else {
+        return 1;
+    }
+}
+
+sub _yaml_module () {
+    my $yaml_module = $CPAN::Config->{yaml_module} || "YAML";
+    if (
+        $yaml_module ne "YAML"
+        &&
+        !$CPAN::META->has_inst($yaml_module)
+       ) {
+        # $CPAN::Frontend->mywarn("'$yaml_module' not installed, falling back to 'YAML'\n");
+        $yaml_module = "YAML";
+    }
+    if ($yaml_module eq "YAML"
+        &&
+        $CPAN::META->has_inst($yaml_module)
+        &&
+        $YAML::VERSION < 0.60
+        &&
+        !$Have_warned->{"YAML"}++
+       ) {
+        $CPAN::Frontend->mywarn("Warning: YAML version '$YAML::VERSION' is too low, please upgrade!\n".
+                                "I'll continue but problems are *very* likely to happen.\n"
+                               );
+        $CPAN::Frontend->mysleep(5);
+    }
+    return $yaml_module;
+}
+
 # CPAN::_yaml_loadfile
 sub _yaml_loadfile {
     my($self,$local_file) = @_;
-    my $yaml_module = $CPAN::Config->{yaml_module} || "YAML";
+    return +[] unless -s $local_file;
+    my $yaml_module = _yaml_module;
+    if ($CPAN::META->has_inst($yaml_module)) {
+        # temporarly enable yaml code deserialisation
+        no strict 'refs';
+        # 5.6.2 could not do the local() with the reference
+        local $YAML::LoadCode;
+        local $YAML::Syck::LoadCode;
+        ${ "$yaml_module\::LoadCode" } = $CPAN::Config->{yaml_load_code} || 0;
+
+        my $code;
+        if ($code = UNIVERSAL::can($yaml_module, "LoadFile")) {
+            my @yaml;
+            eval { @yaml = $code->($local_file); };
+            if ($@) {
+                # this shall not be done by the frontend
+                die CPAN::Exception::yaml_process_error->new($yaml_module,$local_file,"parse",$@);
+            }
+            return \@yaml;
+        } elsif ($code = UNIVERSAL::can($yaml_module, "Load")) {
+            local *FH;
+            open FH, $local_file or die "Could not open '$local_file': $!";
+            local $/;
+            my $ystream = <FH>;
+            my @yaml;
+            eval { @yaml = $code->($ystream); };
+            if ($@) {
+                # this shall not be done by the frontend
+                die CPAN::Exception::yaml_process_error->new($yaml_module,$local_file,"parse",$@);
+            }
+            return \@yaml;
+        }
+    } else {
+        # this shall not be done by the frontend
+        die CPAN::Exception::yaml_not_installed->new($yaml_module, $local_file, "parse");
+    }
+    return +[];
+}
+
+# CPAN::_yaml_dumpfile
+sub _yaml_dumpfile {
+    my($self,$local_file,@what) = @_;
+    my $yaml_module = _yaml_module;
     if ($CPAN::META->has_inst($yaml_module)) {
-        my $code = UNIVERSAL::can($yaml_module, "LoadFile");
-        my $yaml;
-        eval { $yaml = $code->($local_file); };
+        my $code;
+        if (UNIVERSAL::isa($local_file, "FileHandle")) {
+            $code = UNIVERSAL::can($yaml_module, "Dump");
+            eval { print $local_file $code->(@what) };
+        } elsif ($code = UNIVERSAL::can($yaml_module, "DumpFile")) {
+            eval { $code->($local_file,@what); };
+        } elsif ($code = UNIVERSAL::can($yaml_module, "Dump")) {
+            local *FH;
+            open FH, ">$local_file" or die "Could not open '$local_file': $!";
+            print FH $code->(@what);
+        }
         if ($@) {
-            $CPAN::Frontend->mydie("Alert: While trying to parse YAML file\n".
-                                   "  $local_file\n".
-                                   "with $yaml_module the following error was encountered:\n".
-                                   "  $@\n"
-                                  );
+            die CPAN::Exception::yaml_process_error->new($yaml_module,$local_file,"dump",$@);
         }
-        return $yaml;
     } else {
-        $CPAN::Frontend->mywarn("'$yaml_module' not installed, cannot parse '$local_file'\n");
+        if (UNIVERSAL::isa($local_file, "FileHandle")) {
+            # I think this case does not justify a warning at all
+        } else {
+            die CPAN::Exception::yaml_not_installed->new($yaml_module, $local_file, "dump");
+        }
+    }
+}
+
+sub _init_sqlite () {
+    unless ($CPAN::META->has_inst("CPAN::SQLite")) {
+        $CPAN::Frontend->mywarn(qq{CPAN::SQLite not installed, trying to work without\n})
+            unless $Have_warned->{"CPAN::SQLite"}++;
+        return;
+    }
+    require CPAN::SQLite::META; # not needed since CVS version of 2006-12-17
+    $CPAN::SQLite ||= CPAN::SQLite::META->new($CPAN::META);
+}
+
+{
+    my $negative_cache = {};
+    sub _sqlite_running {
+        if ($negative_cache->{time} && time < $negative_cache->{time} + 60) {
+            # need to cache the result, otherwise too slow
+            return $negative_cache->{fact};
+        } else {
+            $negative_cache = {}; # reset
+        }
+        my $ret = $CPAN::Config->{use_sqlite} && ($CPAN::SQLite || _init_sqlite());
+        return $ret if $ret; # fast anyway
+        $negative_cache->{time} = time;
+        return $negative_cache->{fact} = $ret;
     }
-    return +{};
 }
 
 package CPAN::CacheMgr;
@@ -367,7 +524,8 @@ use File::Find;
 
 package CPAN::FTP;
 use strict;
-use vars qw($Ua $Thesite $ThesiteURL $Themethod);
+use Fcntl qw(:flock);
+use vars qw($connect_to_internet_ok $Ua $Thesite $ThesiteURL $Themethod);
 @CPAN::FTP::ISA = qw(CPAN::Debug);
 
 package CPAN::LWP::UserAgent;
@@ -378,33 +536,45 @@ use vars qw(@ISA $USER $PASSWD $SETUPDONE);
 package CPAN::Complete;
 use strict;
 @CPAN::Complete::ISA = qw(CPAN::Debug);
+# Q: where is the "How do I add a new command" HOWTO?
+# A: svn diff -r 1048:1049 where andk added the report command
 @CPAN::Complete::COMMANDS = sort qw(
-                                    ! a b d h i m o q r u
+                                    ! a b d h i m o q r u
                                     autobundle
+                                    bye
                                     clean
                                     cvs_import
                                     dump
+                                    exit
+                                    failed
                                     force
+                                    fforce
+                                    hosts
                                     install
+                                    install_tested
+                                    is_tested
                                     look
                                     ls
                                     make
                                     mkmyconfig
                                     notest
                                     perldoc
+                                    quit
                                     readme
                                     recent
                                     recompile
                                     reload
                                     report
+                                    reports
                                     scripts
+                                    smoke
                                     test
                                     upgrade
 );
 
 package CPAN::Index;
 use strict;
-use vars qw($LAST_TIME $DATE_OF_02 $DATE_OF_03);
+use vars qw($LAST_TIME $DATE_OF_02 $DATE_OF_03 $HAVE_REANIMATED);
 @CPAN::Index::ISA = qw(CPAN::Debug);
 $LAST_TIME ||= 0;
 $DATE_OF_03 ||= 0;
@@ -435,23 +605,127 @@ package CPAN::Exception::RecursiveDependency;
 use strict;
 use overload '""' => "as_string";
 
+# a module sees its distribution (no version)
+# a distribution sees its prereqs (which are module names) (usually with versions)
+# a bundle sees its module names and/or its distributions (no version)
+
 sub new {
     my($class) = shift;
     my($deps) = shift;
-    my @deps;
-    my %seen;
-    for my $dep (@$deps) {
-        push @deps, $dep;
-        last if $seen{$dep}++;
+    my (@deps,%seen,$loop_starts_with);
+  DCHAIN: for my $dep (@$deps) {
+        push @deps, {name => $dep, display_as => $dep};
+        if ($seen{$dep}++) {
+            $loop_starts_with = $dep;
+            last DCHAIN;
+        }
+    }
+    my $in_loop = 0;
+    for my $i (0..$#deps) {
+        my $x = $deps[$i]{name};
+        $in_loop ||= $x eq $loop_starts_with;
+        my $xo = CPAN::Shell->expandany($x) or next;
+        if ($xo->isa("CPAN::Module")) {
+            my $have = $xo->inst_version || "N/A";
+            my($want,$d,$want_type);
+            if ($i>0 and $d = $deps[$i-1]{name}) {
+                my $do = CPAN::Shell->expandany($d);
+                $want = $do->{prereq_pm}{requires}{$x};
+                if (defined $want) {
+                    $want_type = "requires: ";
+                } else {
+                    $want = $do->{prereq_pm}{build_requires}{$x};
+                    if (defined $want) {
+                        $want_type = "build_requires: ";
+                    } else {
+                        $want_type = "unknown status";
+                        $want = "???";
+                    }
+                }
+            } else {
+                $want = $xo->cpan_version;
+                $want_type = "want: ";
+            }
+            $deps[$i]{have} = $have;
+            $deps[$i]{want_type} = $want_type;
+            $deps[$i]{want} = $want;
+            $deps[$i]{display_as} = "$x (have: $have; $want_type$want)";
+        } elsif ($xo->isa("CPAN::Distribution")) {
+            $deps[$i]{display_as} = $xo->pretty_id;
+            if ($in_loop) {
+                $xo->{make} = CPAN::Distrostatus->new("NO cannot resolve circular dependency");
+            } else {
+                $xo->{make} = CPAN::Distrostatus->new("NO one dependency ($loop_starts_with) is a circular dependency");
+            }
+            $xo->store_persistent_state; # otherwise I will not reach
+                                         # all involved parties for
+                                         # the next session
+        }
     }
     bless { deps => \@deps }, $class;
 }
 
 sub as_string {
     my($self) = shift;
-    "\nRecursive dependency detected:\n    " .
-        join("\n => ", @{$self->{deps}}) .
-            ".\nCannot continue.\n";
+    my $ret = "\nRecursive dependency detected:\n    ";
+    $ret .= join("\n => ", map {$_->{display_as}} @{$self->{deps}});
+    $ret .= ".\nCannot resolve.\n";
+    $ret;
+}
+
+package CPAN::Exception::yaml_not_installed;
+use strict;
+use overload '""' => "as_string";
+
+sub new {
+    my($class,$module,$file,$during) = @_;
+    bless { module => $module, file => $file, during => $during }, $class;
+}
+
+sub as_string {
+    my($self) = shift;
+    "'$self->{module}' not installed, cannot $self->{during} '$self->{file}'\n";
+}
+
+package CPAN::Exception::yaml_process_error;
+use strict;
+use overload '""' => "as_string";
+
+sub new {
+    my($class,$module,$file,$during,$error) = @_;
+    bless { module => $module,
+            file => $file,
+            during => $during,
+            error => $error }, $class;
+}
+
+sub as_string {
+    my($self) = shift;
+    if ($self->{during}) {
+        if ($self->{file}) {
+            if ($self->{module}) {
+                if ($self->{error}) {
+                    return "Alert: While trying to '$self->{during}' YAML file\n".
+                        " '$self->{file}'\n".
+                            "with '$self->{module}' the following error was encountered:\n".
+                                "  $self->{error}\n";
+                } else {
+                    return "Alert: While trying to '$self->{during}' YAML file\n".
+                        " '$self->{file}'\n".
+                            "with '$self->{module}' some unknown error was encountered\n";
+                }
+            } else {
+                return "Alert: While trying to '$self->{during}' YAML file\n".
+                    " '$self->{file}'\n".
+                        "some unknown error was encountered\n";
+            }
+        } else {
+            return "Alert: While trying to '$self->{during}' some YAML file\n".
+                    "some unknown error was encountered\n";
+        }
+    } else {
+        return "Alert: unknown error encountered\n";
+    }
 }
 
 package CPAN::Prompt; use overload '""' => "as_string";
@@ -462,10 +736,14 @@ sub new {
     bless {}, shift;
 }
 sub as_string {
+    my $word = "cpan";
+    unless ($CPAN::META->{LOCK}) {
+        $word = "nolock_cpan";
+    }
     if ($CPAN::Config->{commandnumber_in_prompt}) {
-        sprintf "cpan[%d]> ", $CPAN::CurrentCommandId;
+        sprintf "$word\[%d]> ", $CPAN::CurrentCommandId;
     } else {
-        "cpan> ";
+        "$word> ";
     }
 }
 
@@ -499,6 +777,7 @@ sub new {
            TEXT => $arg,
            FAILED => substr($arg,0,2) eq "NO",
            COMMANDID => $CPAN::CurrentCommandId,
+           TIME => time,
           }, $class;
 }
 sub commandid { shift->{COMMANDID} }
@@ -521,15 +800,59 @@ use vars qw(
             $ADVANCED_QUERY
             $AUTOLOAD
             $COLOR_REGISTERED
+            $Help
             $autoload_recursion
             $reload
             @ISA
            );
 @CPAN::Shell::ISA = qw(CPAN::Debug);
 $COLOR_REGISTERED ||= 0;
-
+$Help = {
+         '?' => \"help",
+         '!' => "eval the rest of the line as perl",
+         a => "whois author",
+         autobundle => "wtite inventory into a bundle file",
+         b => "info about bundle",
+         bye => \"quit",
+         clean => "clean up a distribution's build directory",
+         # cvs_import
+         d => "info about a distribution",
+         # dump
+         exit => \"quit",
+         failed => "list all failed actions within current session",
+         fforce => "redo a command from scratch",
+         force => "redo a command",
+         h => \"help",
+         help => "overview over commands; 'help ...' explains specific commands",
+         hosts => "statistics about recently used hosts",
+         i => "info about authors/bundles/distributions/modules",
+         install => "install a distribution",
+         install_tested => "install all distributions tested OK",
+         is_tested => "list all distributions tested OK",
+         look => "open a subshell in a distribution's directory",
+         ls => "list distributions according to a glob",
+         m => "info about a module",
+         make => "make/build a distribution",
+         mkmyconfig => "write current config into a CPAN/MyConfig.pm file",
+         notest => "run a (usually install) command but leave out the test phase",
+         o => "'o conf ...' for config stuff; 'o debug ...' for debugging",
+         perldoc => "try to get a manpage for a module",
+         q => \"quit",
+         quit => "leave the cpan shell",
+         r => "review over upgradeable modules",
+         readme => "display the README of a distro woth a pager",
+         recent => "show recent uploads to the CPAN",
+         # recompile
+         reload => "'reload cpan' or 'reload index'",
+         report => "test a distribution and send a test report to cpantesters",
+         reports => "info about reported tests from cpantesters",
+         # scripts
+         # smoke
+         test => "test a distribution",
+         u => "display uninstalled modules",
+         upgrade => "combine 'r' command with immediate installation",
+        };
 {
-    # $GLOBAL_AUTOLOAD_RECURSION = 12;
     $autoload_recursion   ||= 0;
 
     #-> sub CPAN::Shell::AUTOLOAD ;
@@ -579,6 +902,34 @@ $META ||= CPAN->new; # In case we re-eval ourselves we need the ||
 # from here on only subs.
 ################################################################################
 
+sub _perl_fingerprint {
+    my($self,$other_fingerprint) = @_;
+    my $dll = eval {OS2::DLLname()};
+    my $mtime_dll = 0;
+    if (defined $dll) {
+        $mtime_dll = (-f $dll ? (stat(_))[9] : '-1');
+    }
+    my $mtime_perl = (-f $^X ? (stat(_))[9] : '-1');
+    my $this_fingerprint = {
+                            '$^X' => $^X,
+                            sitearchexp => $Config::Config{sitearchexp},
+                            'mtime_$^X' => $mtime_perl,
+                            'mtime_dll' => $mtime_dll,
+                           };
+    if ($other_fingerprint) {
+        if (exists $other_fingerprint->{'stat($^X)'}) { # repair fp from rev. 1.88_57
+            $other_fingerprint->{'mtime_$^X'} = $other_fingerprint->{'stat($^X)'}[9];
+        }
+        # mandatory keys since 1.88_57
+        for my $key (qw($^X sitearchexp mtime_dll mtime_$^X)) {
+            return unless $other_fingerprint->{$key} eq $this_fingerprint->{$key};
+        }
+        return 1;
+    } else {
+        return $this_fingerprint;
+    }
+}
+
 sub suggest_myconfig () {
   SUGGEST_MYCONFIG: if(!$INC{'CPAN/MyConfig.pm'}) {
         $CPAN::Frontend->myprint("You don't seem to have a user ".
@@ -614,58 +965,77 @@ sub checklock {
     my($self) = @_;
     my $lockfile = File::Spec->catfile($CPAN::Config->{cpan_home},".lock");
     if (-f $lockfile && -M _ > 0) {
-       my $fh = FileHandle->new($lockfile) or
+        my $fh = FileHandle->new($lockfile) or
             $CPAN::Frontend->mydie("Could not open lockfile '$lockfile': $!");
-       my $otherpid  = <$fh>;
-       my $otherhost = <$fh>;
-       $fh->close;
-       if (defined $otherpid && $otherpid) {
-           chomp $otherpid;
-        }
-       if (defined $otherhost && $otherhost) {
-           chomp $otherhost;
-       }
-       my $thishost  = hostname();
-       if (defined $otherhost && defined $thishost &&
-           $otherhost ne '' && $thishost ne '' &&
-           $otherhost ne $thishost) {
+        my $otherpid  = <$fh>;
+        my $otherhost = <$fh>;
+        $fh->close;
+        if (defined $otherpid && $otherpid) {
+            chomp $otherpid;
+        }
+        if (defined $otherhost && $otherhost) {
+            chomp $otherhost;
+        }
+        my $thishost  = hostname();
+        if (defined $otherhost && defined $thishost &&
+            $otherhost ne '' && $thishost ne '' &&
+            $otherhost ne $thishost) {
             $CPAN::Frontend->mydie(sprintf("CPAN.pm panic: Lockfile '$lockfile'\n".
                                            "reports other host $otherhost and other ".
                                            "process $otherpid.\n".
                                            "Cannot proceed.\n"));
-       }
-       elsif (defined $otherpid && $otherpid) {
-           return if $$ == $otherpid; # should never happen
-           $CPAN::Frontend->mywarn(
-                                   qq{
+        } elsif ($RUN_DEGRADED) {
+            $CPAN::Frontend->mywarn("Running in degraded mode (experimental)\n");
+        } elsif (defined $otherpid && $otherpid) {
+            return if $$ == $otherpid; # should never happen
+            $CPAN::Frontend->mywarn(
+                                    qq{
 There seems to be running another CPAN process (pid $otherpid).  Contacting...
 });
-           if (kill 0, $otherpid) {
-               $CPAN::Frontend->mydie(qq{Other job is running.
-You may want to kill it and delete the lockfile, maybe. On UNIX try:
+            if (kill 0, $otherpid) {
+                $CPAN::Frontend->mywarn(qq{Other job is running.\n});
+                my($ans) =
+                    CPAN::Shell::colorable_makemaker_prompt
+                        (qq{Shall I try to run in degraded }.
+                        qq{mode? (Y/n)},"y");
+                if ($ans =~ /^y/i) {
+                    $CPAN::Frontend->mywarn("Running in degraded mode (experimental).
+Please report if something unexpected happens\n");
+                    $RUN_DEGRADED = 1;
+                    for ($CPAN::Config) {
+                        # XXX
+                        # $_->{build_dir_reuse} = 0; # 2006-11-17 akoenig Why was that?
+                        $_->{commandnumber_in_prompt} = 0; # visibility
+                        $_->{histfile} = "";               # who should win otherwise?
+                        $_->{cache_metadata} = 0;          # better would be a lock?
+                        $_->{use_sqlite} = 0;              # better would be a write lock!
+                    }
+                } else {
+                    $CPAN::Frontend->mydie("
+You may want to kill the other job and delete the lockfile. On UNIX try:
     kill $otherpid
     rm $lockfile
-});
-           } elsif (-w $lockfile) {
-               my($ans) =
-                   CPAN::Shell::colorable_makemaker_prompt
-                       (qq{Other job not responding. Shall I overwrite }.
-                        qq{the lockfile '$lockfile'? (Y/n)},"y");
-               $CPAN::Frontend->myexit("Ok, bye\n")
-                   unless $ans =~ /^y/i;
-           } else {
-               Carp::croak(
-                           qq{Lockfile '$lockfile' not writeable by you. }.
-                           qq{Cannot proceed.\n}.
-                           qq{    On UNIX try:\n}.
-                           qq{    rm '$lockfile'\n}.
-                           qq{  and then rerun us.\n}
-                          );
-           }
-       } else {
-            $CPAN::Frontend->mydie(sprintf("CPAN.pm panic: Lockfile '$lockfile'\n".
-                                           "reports other process with ID ".
-                                           "$otherpid. Cannot proceed.\n"));
+");
+                }
+            } elsif (-w $lockfile) {
+                my($ans) =
+                    CPAN::Shell::colorable_makemaker_prompt
+                        (qq{Other job not responding. Shall I overwrite }.
+                        qq{the lockfile '$lockfile'? (Y/n)},"y");
+            $CPAN::Frontend->myexit("Ok, bye\n")
+                unless $ans =~ /^y/i;
+            } else {
+                Carp::croak(
+                    qq{Lockfile '$lockfile' not writeable by you. }.
+                    qq{Cannot proceed.\n}.
+                    qq{    On UNIX try:\n}.
+                    qq{    rm '$lockfile'\n}.
+                    qq{  and then rerun us.\n}
+                );
+            }
+        } else {
+            $CPAN::Frontend->mydie(sprintf("CPAN.pm panic: Found invalid lockfile ".
+                                           "'$lockfile', please remove. Cannot proceed.\n"));
         }
     }
     my $dotcpan = $CPAN::Config->{cpan_home};
@@ -699,14 +1069,22 @@ I tried to create that, but I failed with this error: $seconderror
             $mess .= qq{
 Please make sure the directory exists and is writable.
 };
-            $CPAN::Frontend->myprint($mess);
+            $CPAN::Frontend->mywarn($mess);
             return suggest_myconfig;
         }
     } # $@ after eval mkpath $dotcpan
-    my $fh;
-    unless ($fh = FileHandle->new(">$lockfile")) {
-       if ($! =~ /Permission/) {
-           $CPAN::Frontend->myprint(qq{
+    if (0) { # to test what happens when a race condition occurs
+        for (reverse 1..10) {
+            print $_, "\n";
+            sleep 1;
+        }
+    }
+    # locking
+    if (!$RUN_DEGRADED && !$self->{LOCKFH}) {
+        my $fh;
+        unless ($fh = FileHandle->new("+>>$lockfile")) {
+            if ($! =~ /Permission/) {
+                $CPAN::Frontend->mywarn(qq{
 
 Your configuration suggests that CPAN.pm should use a working
 directory of
@@ -721,13 +1099,25 @@ points to a directory where you can write a .lock file. You can set
 this variable in either a CPAN/MyConfig.pm or a CPAN/Config.pm in your
 \@INC path;
 });
-            return suggest_myconfig;
-       }
+                return suggest_myconfig;
+            }
+        }
+        my $sleep = 1;
+        while (!CPAN::_flock($fh, LOCK_EX|LOCK_NB)) {
+            if ($sleep>10) {
+                $CPAN::Frontend->mydie("Giving up\n");
+            }
+            $CPAN::Frontend->mysleep($sleep++);
+            $CPAN::Frontend->mywarn("Could not lock lockfile with flock: $!; retrying\n");
+        }
+
+        seek $fh, 0, 0;
+        truncate $fh, 0;
+        $fh->print($$, "\n");
+        $fh->print(hostname(), "\n");
+        $self->{LOCK} = $lockfile;
+        $self->{LOCKFH} = $fh;
     }
-    $fh->print($$, "\n");
-    $fh->print(hostname(), "\n");
-    $self->{LOCK} = $lockfile;
-    $fh->close;
     $SIG{TERM} = sub {
         my $sig = shift;
         &cleanup;
@@ -800,18 +1190,18 @@ sub find_perl {
     $perl ||= $candidate if MM->maybe_command($candidate);
 
     unless ($perl) {
-       my ($component,$perl_name);
+        my ($component,$perl_name);
       DIST_PERLNAME: foreach $perl_name ($^X, 'perl', 'perl5', "perl$]") {
-           PATH_COMPONENT: foreach $component (File::Spec->path(),
-                                               $Config::Config{'binexp'}) {
-                 next unless defined($component) && $component;
-                 my($abs) = File::Spec->catfile($component,$perl_name);
-                 if (MM->maybe_command($abs)) {
-                     $perl = $abs;
-                     last DIST_PERLNAME;
-                 }
-             }
-         }
+          PATH_COMPONENT: foreach $component (File::Spec->path(),
+                                                $Config::Config{'binexp'}) {
+                next unless defined($component) && $component;
+                my($abs) = File::Spec->catfile($component,$perl_name);
+                if (MM->maybe_command($abs)) {
+                    $perl = $abs;
+                    last DIST_PERLNAME;
+                }
+            }
+        }
     }
 
     return $perl;
@@ -826,8 +1216,14 @@ sub exists {
     ### Carp::croak "exists called without class argument" unless $class;
     $id ||= "";
     $id =~ s/:+/::/g if $class eq "CPAN::Module";
-    exists $META->{readonly}{$class}{$id} or
-        exists $META->{readwrite}{$class}{$id}; # unsafe meta access, ok
+    my $exists;
+    if (CPAN::_sqlite_running) {
+        $exists = (exists $META->{readonly}{$class}{$id} or
+                   $CPAN::SQLite->set($class, $id));
+    } else {
+        $exists =  exists $META->{readonly}{$class}{$id};
+    }
+    $exists ||= exists $META->{readwrite}{$class}{$id}; # unsafe meta access, ok
 }
 
 #-> sub CPAN::delete ;
@@ -861,7 +1257,7 @@ sub has_usable {
                            ],
                'File::HomeDir' => [
                                    sub {require File::HomeDir;
-                                        unless (File::HomeDir->VERSION >= 0.52){
+                                        unless (File::HomeDir::->VERSION >= 0.52) {
                                             for ("Will not use File::HomeDir, need 0.52\n") {
                                                 $CPAN::Frontend->mywarn($_);
                                                 die $_;
@@ -869,6 +1265,16 @@ sub has_usable {
                                         }
                                     },
                                   ],
+               'Archive::Tar' => [
+                                  sub {require Archive::Tar;
+                                       unless (Archive::Tar::->VERSION >= 1.00) {
+                                            for ("Will not use Archive::Tar, need 1.00\n") {
+                                                $CPAN::Frontend->mywarn($_);
+                                                die $_;
+                                            }
+                                       }
+                                  },
+                                 ],
               };
     if ($usable->{$mod}) {
         for my $c (0..$#{$usable->{$mod}}) {
@@ -888,7 +1294,7 @@ sub has_usable {
 sub has_inst {
     my($self,$mod,$message) = @_;
     Carp::croak("CPAN->has_inst() called without an argument")
-       unless defined $mod;
+        unless defined $mod;
     my %dont = map { $_ => 1 } keys %{$CPAN::META->{dontload_hash}||{}},
         keys %{$CPAN::Config->{dontload_hash}||{}},
             @{$CPAN::Config->{dontload_list}||[]};
@@ -904,36 +1310,40 @@ sub has_inst {
     $file =~ s|::|/|g;
     $file .= ".pm";
     if ($INC{$file}) {
-       # checking %INC is wrong, because $INC{LWP} may be true
-       # although $INC{"URI/URL.pm"} may have failed. But as
-       # I really want to say "bla loaded OK", I have to somehow
-       # cache results.
-       ### warn "$file in %INC"; #debug
-       return 1;
+        # checking %INC is wrong, because $INC{LWP} may be true
+        # although $INC{"URI/URL.pm"} may have failed. But as
+        # I really want to say "bla loaded OK", I have to somehow
+        # cache results.
+        ### warn "$file in %INC"; #debug
+        return 1;
     } elsif (eval { require $file }) {
-       # eval is good: if we haven't yet read the database it's
-       # perfect and if we have installed the module in the meantime,
-       # it tries again. The second require is only a NOOP returning
-       # 1 if we had success, otherwise it's retrying
-
+        # eval is good: if we haven't yet read the database it's
+        # perfect and if we have installed the module in the meantime,
+        # it tries again. The second require is only a NOOP returning
+        # 1 if we had success, otherwise it's retrying
+
+        my $mtime = (stat $INC{$file})[9];
+        # privileged files loaded by has_inst; Note: we use $mtime
+        # as a proxy for a checksum.
+        $CPAN::Shell::reload->{$file} = $mtime;
         my $v = eval "\$$mod\::VERSION";
         $v = $v ? " (v$v)" : "";
-       $CPAN::Frontend->myprint("CPAN: $mod loaded ok$v\n");
-       if ($mod eq "CPAN::WAIT") {
-           push @CPAN::Shell::ISA, 'CPAN::WAIT';
-       }
-       return 1;
+        CPAN::Shell->optprint("load_module","CPAN: $mod loaded ok$v\n");
+        if ($mod eq "CPAN::WAIT") {
+            push @CPAN::Shell::ISA, 'CPAN::WAIT';
+        }
+        return 1;
     } elsif ($mod eq "Net::FTP") {
-       $CPAN::Frontend->mywarn(qq{
+        $CPAN::Frontend->mywarn(qq{
   Please, install Net::FTP as soon as possible. CPAN.pm installs it for you
   if you just type
       install Bundle::libnet
 
 }) unless $Have_warned->{"Net::FTP"}++;
-       $CPAN::Frontend->mysleep(3);
-    } elsif ($mod eq "Digest::SHA"){
+        $CPAN::Frontend->mysleep(3);
+    } elsif ($mod eq "Digest::SHA") {
         if ($Have_warned->{"Digest::SHA"}++) {
-            $CPAN::Frontend->myprint(qq{CPAN: checksum security checks disabled}.
+            $CPAN::Frontend->mywarn(qq{CPAN: checksum security checks disabled }.
                                      qq{because Digest::SHA not installed.\n});
         } else {
             $CPAN::Frontend->mywarn(qq{
@@ -943,31 +1353,33 @@ sub has_inst {
 });
             $CPAN::Frontend->mysleep(2);
         }
-    } elsif ($mod eq "Module::Signature"){
-        if (not $CPAN::Config->{check_sigs}) {
+    } elsif ($mod eq "Module::Signature") {
+        # NOT prefs_lookup, we are not a distro
+        my $check_sigs = $CPAN::Config->{check_sigs};
+        if (not $check_sigs) {
             # they do not want us:-(
         } elsif (not $Have_warned->{"Module::Signature"}++) {
-           # No point in complaining unless the user can
-           # reasonably install and use it.
-           if (eval { require Crypt::OpenPGP; 1 } ||
-               (
+            # No point in complaining unless the user can
+            # reasonably install and use it.
+            if (eval { require Crypt::OpenPGP; 1 } ||
+                (
                  defined $CPAN::Config->{'gpg'}
                  &&
                  $CPAN::Config->{'gpg'} =~ /\S/
                 )
                ) {
-               $CPAN::Frontend->mywarn(qq{
+                $CPAN::Frontend->mywarn(qq{
   CPAN: Module::Signature security checks disabled because Module::Signature
   not installed.  Please consider installing the Module::Signature module.
   You may also need to be able to connect over the Internet to the public
   keyservers like pgp.mit.edu (port 11371).
 
 });
-               $CPAN::Frontend->mysleep(2);
-           }
-       }
+                $CPAN::Frontend->mysleep(2);
+            }
+        }
     } else {
-       delete $INC{$file}; # if it inc'd LWP but failed during, say, URI
+        delete $INC{$file}; # if it inc'd LWP but failed during, say, URI
     }
     return 0;
 }
@@ -997,28 +1409,45 @@ sub cleanup {
   my($subroutine);
   while ((undef,undef,undef,$subroutine) = caller(++$i)) {
       $ineval = 1, last if
-         $subroutine eq '(eval)';
+        $subroutine eq '(eval)';
   }
   return if $ineval && !$CPAN::End;
   return unless defined $META->{LOCK};
   return unless -f $META->{LOCK};
   $META->savehist;
+  close $META->{LOCKFH};
   unlink $META->{LOCK};
   # require Carp;
   # Carp::cluck("DEBUGGING");
+  if ( $CPAN::CONFIG_DIRTY ) {
+      $CPAN::Frontend->mywarn("Warning: Configuration not saved.\n");
+  }
   $CPAN::Frontend->myprint("Lockfile removed.\n");
 }
 
+#-> sub CPAN::readhist
+sub readhist {
+    my($self,$term,$histfile) = @_;
+    my($fh) = FileHandle->new;
+    open $fh, "<$histfile" or last;
+    local $/ = "\n";
+    while (<$fh>) {
+        chomp;
+        $term->AddHistory($_);
+    }
+    close $fh;
+}
+
 #-> sub CPAN::savehist
 sub savehist {
     my($self) = @_;
     my($histfile,$histsize);
-    unless ($histfile = $CPAN::Config->{'histfile'}){
+    unless ($histfile = $CPAN::Config->{'histfile'}) {
         $CPAN::Frontend->mywarn("No history written (no histfile specified).\n");
         return;
     }
     $histsize = $CPAN::Config->{'histsize'} || 100;
-    if ($CPAN::term){
+    if ($CPAN::term) {
         unless ($CPAN::term->can("GetHistory")) {
             $CPAN::Frontend->mywarn("Terminal does not support GetHistory.\n");
             return;
@@ -1035,11 +1464,17 @@ sub savehist {
     close $fh;
 }
 
+#-> sub CPAN::is_tested
 sub is_tested {
-    my($self,$what) = @_;
-    $self->{is_tested}{$what} = 1;
+    my($self,$what,$when) = @_;
+    unless ($what) {
+        Carp::cluck("DEBUG: empty what");
+        return;
+    }
+    $self->{is_tested}{$what} = $when;
 }
 
+#-> sub CPAN::is_installed
 # unsets the is_tested flag: as soon as the thing is installed, it is
 # not needed in set_perl5lib anymore
 sub is_installed {
@@ -1047,16 +1482,49 @@ sub is_installed {
     delete $self->{is_tested}{$what};
 }
 
-sub set_perl5lib {
+sub _list_sorted_descending_is_tested {
     my($self) = @_;
+    sort
+        { ($self->{is_tested}{$b}||0) <=> ($self->{is_tested}{$a}||0) }
+            keys %{$self->{is_tested}}
+}
+
+#-> sub CPAN::set_perl5lib
+sub set_perl5lib {
+    my($self,$for) = @_;
+    unless ($for) {
+        (undef,undef,undef,$for) = caller(1);
+        $for =~ s/.*://;
+    }
     $self->{is_tested} ||= {};
     return unless %{$self->{is_tested}};
     my $env = $ENV{PERL5LIB};
     $env = $ENV{PERLLIB} unless defined $env;
     my @env;
     push @env, $env if defined $env and length $env;
-    my @dirs = map {("$_/blib/arch", "$_/blib/lib")} keys %{$self->{is_tested}};
-    $CPAN::Frontend->myprint("Prepending @dirs to PERL5LIB.\n");
+    #my @dirs = map {("$_/blib/arch", "$_/blib/lib")} keys %{$self->{is_tested}};
+    #$CPAN::Frontend->myprint("Prepending @dirs to PERL5LIB.\n");
+
+    my @dirs = map {("$_/blib/arch", "$_/blib/lib")} $self->_list_sorted_descending_is_tested;
+    if (@dirs < 12) {
+        $CPAN::Frontend->myprint("Prepending @dirs to PERL5LIB for '$for'\n");
+    } elsif (@dirs < 24) {
+        my @d = map {my $cp = $_;
+                     $cp =~ s/^\Q$CPAN::Config->{build_dir}\E/%BUILDDIR%/;
+                     $cp
+                 } @dirs;
+        $CPAN::Frontend->myprint("Prepending @d to PERL5LIB; ".
+                                 "%BUILDDIR%=$CPAN::Config->{build_dir} ".
+                                 "for '$for'\n"
+                                );
+    } else {
+        my $cnt = keys %{$self->{is_tested}};
+        $CPAN::Frontend->myprint("Prepending blib/arch and blib/lib of ".
+                                 "$cnt build dirs to PERL5LIB; ".
+                                 "for '$for'\n"
+                                );
+    }
+
     $ENV{PERL5LIB} = join $Config::Config{path_sep}, @dirs, @env;
 }
 
@@ -1067,9 +1535,9 @@ use strict;
 sub as_string {
     eval { require Data::Dumper };
     if ($@) {
-       return shift->SUPER::as_string;
+        return shift->SUPER::as_string;
     } else {
-       return Data::Dumper::Dumper(shift);
+        return Data::Dumper::Dumper(shift);
     }
 }
 
@@ -1081,16 +1549,20 @@ sub cachesize {
 #-> sub CPAN::CacheMgr::tidyup ;
 sub tidyup {
   my($self) = @_;
+  return unless $CPAN::META->{LOCK};
   return unless -d $self->{ID};
-  while ($self->{DU} > $self->{'MAX'} ) {
-    my($toremove) = shift @{$self->{FIFO}};
+  my @toremove = grep { $self->{SIZE}{$_}==0 } @{$self->{FIFO}};
+  for my $current (0..$#toremove) {
+    my $toremove = $toremove[$current];
     $CPAN::Frontend->myprint(sprintf(
-                                    "Deleting from cache".
-                                    ": $toremove (%.1f>%.1f MB)\n",
-                                    $self->{DU}, $self->{'MAX'})
-                           );
+                                     "DEL(%d/%d): %s \n",
+                                     $current+1,
+                                     scalar @toremove,
+                                     $toremove,
+                                    )
+                            );
     return if $CPAN::Signal;
-    $self->force_clean_cache($toremove);
+    $self->_clean_cache($toremove);
     return if $CPAN::Signal;
   }
 }
@@ -1112,41 +1584,48 @@ sub entries {
         or Carp::croak("Couldn't opendir $dir: $!");
     my(@entries);
     for ($dh->read) {
-       next if $_ eq "." || $_ eq "..";
-       if (-f $_) {
-           push @entries, File::Spec->catfile($dir,$_);
-       } elsif (-d _) {
-           push @entries, File::Spec->catdir($dir,$_);
-       } else {
-           $CPAN::Frontend->mywarn("Warning: weird direntry in $dir: $_\n");
-       }
+        next if $_ eq "." || $_ eq "..";
+        if (-f $_) {
+            push @entries, File::Spec->catfile($dir,$_);
+        } elsif (-d _) {
+            push @entries, File::Spec->catdir($dir,$_);
+        } else {
+            $CPAN::Frontend->mywarn("Warning: weird direntry in $dir: $_\n");
+        }
     }
     chdir $cwd or Carp::croak("Can't chdir to $cwd: $!");
-    sort { -M $b <=> -M $a} @entries;
+    sort { -M $a <=> -M $b} @entries;
 }
 
 #-> sub CPAN::CacheMgr::disk_usage ;
 sub disk_usage {
-    my($self,$dir) = @_;
+    my($self,$dir,$fast) = @_;
     return if exists $self->{SIZE}{$dir};
     return if $CPAN::Signal;
     my($Du) = 0;
     if (-e $dir) {
-        unless (-x $dir) {
-            unless (chmod 0755, $dir) {
-                $CPAN::Frontend->mywarn("I have neither the -x permission nor the ".
-                                        "permission to change the permission; cannot ".
-                                        "estimate disk usage of '$dir'\n");
-                $CPAN::Frontend->mysleep(5);
-                return;
+        if (-d $dir) {
+            unless (-x $dir) {
+                unless (chmod 0755, $dir) {
+                    $CPAN::Frontend->mywarn("I have neither the -x permission nor the ".
+                                            "permission to change the permission; cannot ".
+                                            "estimate disk usage of '$dir'\n");
+                    $CPAN::Frontend->mysleep(5);
+                    return;
+                }
             }
+        } elsif (-f $dir) {
+            # nothing to say, no matter what the permissions
         }
     } else {
-        $CPAN::Frontend->mywarn("Directory '$dir' has gone. Cannot continue.\n");
+        $CPAN::Frontend->mywarn("File or directory '$dir' has gone, ignoring\n");
         return;
     }
-    find(
-         sub {
+    if ($fast) {
+        $Du = 0; # placeholder
+    } else {
+        find(
+             sub {
            $File::Find::prune++ if $CPAN::Signal;
            return if -l $_;
            if ($^O eq 'MacOS') {
@@ -1171,22 +1650,55 @@ sub disk_usage {
            }
          },
          $dir
-        );
+            );
+    }
     return if $CPAN::Signal;
     $self->{SIZE}{$dir} = $Du/1024/1024;
-    push @{$self->{FIFO}}, $dir;
+    unshift @{$self->{FIFO}}, $dir;
     $self->debug("measured $dir is $Du") if $CPAN::DEBUG;
     $self->{DU} += $Du/1024/1024;
     $self->{DU};
 }
 
-#-> sub CPAN::CacheMgr::force_clean_cache ;
-sub force_clean_cache {
+#-> sub CPAN::CacheMgr::_clean_cache ;
+sub _clean_cache {
     my($self,$dir) = @_;
     return unless -e $dir;
+    unless (File::Spec->canonpath(File::Basename::dirname($dir))
+            eq File::Spec->canonpath($CPAN::Config->{build_dir})) {
+        $CPAN::Frontend->mywarn("Directory '$dir' not below $CPAN::Config->{build_dir}, ".
+                                "will not remove\n");
+        $CPAN::Frontend->mysleep(5);
+        return;
+    }
     $self->debug("have to rmtree $dir, will free $self->{SIZE}{$dir}")
-       if $CPAN::DEBUG;
+        if $CPAN::DEBUG;
     File::Path::rmtree($dir);
+    my $id_deleted = 0;
+    if ($dir !~ /\.yml$/ && -f "$dir.yml") {
+        my $yaml_module = CPAN::_yaml_module;
+        if ($CPAN::META->has_inst($yaml_module)) {
+            my($peek_yaml) = eval { CPAN->_yaml_loadfile("$dir.yml"); };
+            if ($@) {
+                $CPAN::Frontend->mywarn("(parse error on '$dir.yml' removing anyway)");
+                unlink "$dir.yml" or
+                    $CPAN::Frontend->mywarn("(Could not unlink '$dir.yml': $!)");
+                return;
+            } elsif (my $id = $peek_yaml->[0]{distribution}{ID}) {
+                $CPAN::META->delete("CPAN::Distribution", $id);
+
+                # XXX we should restore the state NOW, otherise this
+                # distro does not exist until we read an index. BUG ALERT(?)
+
+                # $CPAN::Frontend->mywarn (" +++\n");
+                $id_deleted++;
+            }
+        }
+        unlink "$dir.yml"; # may fail
+        unless ($id_deleted) {
+            CPAN->debug("no distro found associated with '$dir'");
+        }
+    }
     $self->{DU} -= $self->{SIZE}{$dir};
     delete $self->{SIZE}{$dir};
 }
@@ -1198,11 +1710,11 @@ sub new {
     my($debug,$t2);
     $debug = "";
     my $self = {
-               ID => $CPAN::Config->{'build_dir'},
-               MAX => $CPAN::Config->{'build_cache'},
-               SCAN => $CPAN::Config->{'scan_cache'} || 'atstart',
-               DU => 0
-              };
+        ID => $CPAN::Config->{build_dir},
+        MAX => $CPAN::Config->{'build_cache'},
+        SCAN => $CPAN::Config->{'scan_cache'} || 'atstart',
+        DU => 0
+    };
     File::Path::mkpath($self->{ID});
     my $dh = DirHandle->new($self->{ID});
     bless $self, $class;
@@ -1219,16 +1731,31 @@ sub scan_cache {
     my $self = shift;
     return if $self->{SCAN} eq 'never';
     $CPAN::Frontend->mydie("Unknown scan_cache argument: $self->{SCAN}")
-       unless $self->{SCAN} eq 'atstart';
+        unless $self->{SCAN} eq 'atstart';
+    return unless $CPAN::META->{LOCK};
     $CPAN::Frontend->myprint(
-                            sprintf("Scanning cache %s for sizes\n",
-                                    $self->{ID}));
+                             sprintf("Scanning cache %s for sizes\n",
+                             $self->{ID}));
     my $e;
-    for $e ($self->entries($self->{ID})) {
-       next if $e eq ".." || $e eq ".";
-       $self->disk_usage($e);
-       return if $CPAN::Signal;
+    my @entries = $self->entries($self->{ID});
+    my $i = 0;
+    my $painted = 0;
+    for $e (@entries) {
+        my $symbol = ".";
+        if ($self->{DU} > $self->{MAX}) {
+            $symbol = "-";
+            $self->disk_usage($e,1);
+        } else {
+            $self->disk_usage($e);
+        }
+        $i++;
+        while (($painted/76) < ($i/@entries)) {
+            $CPAN::Frontend->myprint($symbol);
+            $painted++;
+        }
+        return if $CPAN::Signal;
     }
+    $CPAN::Frontend->myprint("DONE\n");
     $self->tidyup;
 }
 
@@ -1239,10 +1766,19 @@ use strict;
 sub h {
     my($class,$about) = @_;
     if (defined $about) {
-       $CPAN::Frontend->myprint("Detailed help not yet implemented\n");
+        my $help;
+        if (exists $Help->{$about}) {
+            if (ref $Help->{$about}) { # aliases
+                $about = ${$Help->{$about}};
+            }
+            $help = $Help->{$about};
+        } else {
+            $help = "No help available";
+        }
+        $CPAN::Frontend->myprint("$about\: $help\n");
     } else {
         my $filler = " " x (80 - 28 - length($CPAN::VERSION));
-       $CPAN::Frontend->myprint(qq{
+        $CPAN::Frontend->myprint(qq{
 Display Information $filler (ver $CPAN::VERSION)
  command  argument          description
  a,b,d,m  WORD or /REGEXP/  about authors, bundles, distributions, modules
@@ -1262,8 +1798,8 @@ Upgrade
  upgrade  WORDs or /REGEXP/ or NONE    upgrade some/matching/all modules
 
 Pragmas
- force COMMAND    unconditionally do command
- notest COMMAND   skip testing
+ force  CMD    try hard to do command  fforce CMD    try harder
+ notest CMD    skip testing
 
 Other
  h,?           display this menu       ! perl-code   eval a perl command
@@ -1323,18 +1859,20 @@ sub globls {
     my $silent = @accept>1;
     my $last_alpha = "";
     my @results;
-    for my $a (@accept){
+    for my $a (@accept) {
         my($author,$pathglob);
         if ($a =~ m|(.*?)/(.*)|) {
             my $a2 = $1;
             $pathglob = $2;
             $author = CPAN::Shell->expand_by_method('CPAN::Author',
                                                     ['id'],
-                                                    $a2) or die "No author found for $a2";
+                                                    $a2)
+                or $CPAN::Frontend->mydie("No author found for $a2\n");
         } else {
             $author = CPAN::Shell->expand_by_method('CPAN::Author',
                                                     ['id'],
-                                                    $a) or die "No author found for $a";
+                                                    $a)
+                or $CPAN::Frontend->mydie("No author found for $a\n");
         }
         if ($silent) {
             my $alpha = substr $author->id, 0, 1;
@@ -1356,9 +1894,9 @@ sub globls {
                                                        # more than one
                                                        # author
         for my $pragma (@$pragmas) {
-            my $meth = "un$pragma";
-            if ($author->can($meth)) {
-                $author->$meth();
+            my $unpragma = "un$pragma";
+            if ($author->can($unpragma)) {
+                $author->$unpragma();
             }
         }
     }
@@ -1379,7 +1917,7 @@ sub local_bundles {
                 for $entry ($dh->read) {
                     next if $entry =~ /^\./;
                     next unless $entry =~ /^\w+(\.pm)?(?!\n)\Z/;
-                    if (-d File::Spec->catdir($bdir,$entry)){
+                    if (-d File::Spec->catdir($bdir,$entry)) {
                         push @bbase, "$bbase\::$entry";
                     } else {
                         next unless $entry =~ s/\.pm(?!\n)\Z//;
@@ -1415,13 +1953,13 @@ sub i {
     @args = '/./' unless @args;
     my(@result);
     for my $type (qw/Bundle Distribution Module/) {
-       push @result, $self->expand($type,@args);
+        push @result, $self->expand($type,@args);
     }
     # Authors are always uppercase.
     push @result, $self->expand("Author", map { uc $_ } @args);
 
     my $result = @result == 1 ?
-       $result[0]->as_string :
+        $result[0]->as_string :
             @result == 0 ?
                 "No objects found of any type for argument @args\n" :
                     join("",
@@ -1439,89 +1977,96 @@ sub i {
 # 'debug'; 'o conf ARGS' calls ->edit in CPAN/HandleConfig.pm
 sub o {
     my($self,$o_type,@o_what) = @_;
-    $DB::single = 1;
     $o_type ||= "";
     CPAN->debug("o_type[$o_type] o_what[".join(" | ",@o_what)."]\n");
     if ($o_type eq 'conf') {
-       if (!@o_what) { # print all things, "o conf"
-           my($k,$v);
-           $CPAN::Frontend->myprint("\$CPAN::Config options from ");
+        my($cfilter) = $o_what[0] =~ m|^/(.*)/$|;
+        if (!@o_what or $cfilter) { # print all things, "o conf"
+            $cfilter ||= "";
+            my $qrfilter = eval 'qr/$cfilter/';
+            my($k,$v);
+            $CPAN::Frontend->myprint("\$CPAN::Config options from ");
             my @from;
-           if (exists $INC{'CPAN/Config.pm'}) {
+            if (exists $INC{'CPAN/Config.pm'}) {
                 push @from, $INC{'CPAN/Config.pm'};
-           }
-           if (exists $INC{'CPAN/MyConfig.pm'}) {
+            }
+            if (exists $INC{'CPAN/MyConfig.pm'}) {
                 push @from, $INC{'CPAN/MyConfig.pm'};
-           }
+            }
             $CPAN::Frontend->myprint(join " and ", map {"'$_'"} @from);
-           $CPAN::Frontend->myprint(":\n");
-           for $k (sort keys %CPAN::HandleConfig::can) {
-               $v = $CPAN::HandleConfig::can{$k};
-               $CPAN::Frontend->myprint(sprintf "    %-18s [%s]\n", $k, $v);
-           }
-           $CPAN::Frontend->myprint("\n");
-           for $k (sort keys %$CPAN::Config) {
+            $CPAN::Frontend->myprint(":\n");
+            for $k (sort keys %CPAN::HandleConfig::can) {
+                next unless $k =~ /$qrfilter/;
+                $v = $CPAN::HandleConfig::can{$k};
+                $CPAN::Frontend->myprint(sprintf "    %-18s [%s]\n", $k, $v);
+            }
+            $CPAN::Frontend->myprint("\n");
+            for $k (sort keys %CPAN::HandleConfig::keys) {
+                next unless $k =~ /$qrfilter/;
                 CPAN::HandleConfig->prettyprint($k);
-           }
-           $CPAN::Frontend->myprint("\n");
-       } elsif (!CPAN::HandleConfig->edit(@o_what)) {
-           $CPAN::Frontend->myprint(qq{Type 'o conf' to view all configuration }.
-                                     qq{items\n\n});
-       }
+            }
+            $CPAN::Frontend->myprint("\n");
+        } else {
+            if (CPAN::HandleConfig->edit(@o_what)) {
+            } else {
+                $CPAN::Frontend->myprint(qq{Type 'o conf' to view all configuration }.
+                                         qq{items\n\n});
+            }
+        }
     } elsif ($o_type eq 'debug') {
-       my(%valid);
-       @o_what = () if defined $o_what[0] && $o_what[0] =~ /help/i;
-       if (@o_what) {
-           while (@o_what) {
-               my($what) = shift @o_what;
+        my(%valid);
+        @o_what = () if defined $o_what[0] && $o_what[0] =~ /help/i;
+        if (@o_what) {
+            while (@o_what) {
+                my($what) = shift @o_what;
                 if ($what =~ s/^-// && exists $CPAN::DEBUG{$what}) {
                     $CPAN::DEBUG &= $CPAN::DEBUG ^ $CPAN::DEBUG{$what};
                     next;
                 }
-               if ( exists $CPAN::DEBUG{$what} ) {
-                   $CPAN::DEBUG |= $CPAN::DEBUG{$what};
-               } elsif ($what =~ /^\d/) {
-                   $CPAN::DEBUG = $what;
-               } elsif (lc $what eq 'all') {
-                   my($max) = 0;
-                   for (values %CPAN::DEBUG) {
-                       $max += $_;
-                   }
-                   $CPAN::DEBUG = $max;
-               } else {
-                   my($known) = 0;
-                   for (keys %CPAN::DEBUG) {
-                       next unless lc($_) eq lc($what);
-                       $CPAN::DEBUG |= $CPAN::DEBUG{$_};
-                       $known = 1;
-                   }
-                   $CPAN::Frontend->myprint("unknown argument [$what]\n")
-                       unless $known;
-               }
-           }
-       } else {
-         my $raw = "Valid options for debug are ".
-             join(", ",sort(keys %CPAN::DEBUG), 'all').
-                 qq{ or a number. Completion works on the options. }.
-                     qq{Case is ignored.};
-         require Text::Wrap;
-         $CPAN::Frontend->myprint(Text::Wrap::fill("","",$raw));
-         $CPAN::Frontend->myprint("\n\n");
-       }
-       if ($CPAN::DEBUG) {
-           $CPAN::Frontend->myprint("Options set for debugging ($CPAN::DEBUG):\n");
-           my($k,$v);
-           for $k (sort {$CPAN::DEBUG{$a} <=> $CPAN::DEBUG{$b}} keys %CPAN::DEBUG) {
-               $v = $CPAN::DEBUG{$k};
-               $CPAN::Frontend->myprint(sprintf "    %-14s(%s)\n", $k, $v)
+                if ( exists $CPAN::DEBUG{$what} ) {
+                    $CPAN::DEBUG |= $CPAN::DEBUG{$what};
+                } elsif ($what =~ /^\d/) {
+                    $CPAN::DEBUG = $what;
+                } elsif (lc $what eq 'all') {
+                    my($max) = 0;
+                    for (values %CPAN::DEBUG) {
+                        $max += $_;
+                    }
+                    $CPAN::DEBUG = $max;
+                } else {
+                    my($known) = 0;
+                    for (keys %CPAN::DEBUG) {
+                        next unless lc($_) eq lc($what);
+                        $CPAN::DEBUG |= $CPAN::DEBUG{$_};
+                        $known = 1;
+                    }
+                    $CPAN::Frontend->myprint("unknown argument [$what]\n")
+                        unless $known;
+                }
+            }
+        } else {
+            my $raw = "Valid options for debug are ".
+                join(", ",sort(keys %CPAN::DEBUG), 'all').
+                     qq{ or a number. Completion works on the options. }.
+                     qq{Case is ignored.};
+            require Text::Wrap;
+            $CPAN::Frontend->myprint(Text::Wrap::fill("","",$raw));
+            $CPAN::Frontend->myprint("\n\n");
+        }
+        if ($CPAN::DEBUG) {
+            $CPAN::Frontend->myprint("Options set for debugging ($CPAN::DEBUG):\n");
+            my($k,$v);
+            for $k (sort {$CPAN::DEBUG{$a} <=> $CPAN::DEBUG{$b}} keys %CPAN::DEBUG) {
+                $v = $CPAN::DEBUG{$k};
+                $CPAN::Frontend->myprint(sprintf "    %-14s(%s)\n", $k, $v)
                     if $v & $CPAN::DEBUG;
-           }
-       } else {
-           $CPAN::Frontend->myprint("Debugging turned off completely.\n");
-       }
-    } else {
-       $CPAN::Frontend->myprint(qq{
-Known options:
+            }
+        } else {
+            $CPAN::Frontend->myprint("Debugging turned off completely.\n");
+        }
+    } else {
+        $CPAN::Frontend->myprint(qq{
+Known options:
   conf    set or get configuration variables
   debug   set or get debugging options
 });
@@ -1532,12 +2077,12 @@ Known options:
 sub paintdots_onreload {
     my($ref) = shift;
     sub {
-       if ( $_[0] =~ /[Ss]ubroutine ([\w:]+) redefined/ ) {
-           my($subr) = $1;
-           ++$$ref;
-           local($|) = 1;
-           # $CPAN::Frontend->myprint(".($subr)");
-           $CPAN::Frontend->myprint(".");
+        if ( $_[0] =~ /[Ss]ubroutine ([\w:]+) redefined/ ) {
+            my($subr) = $1;
+            ++$$ref;
+            local($|) = 1;
+            # $CPAN::Frontend->myprint(".($subr)");
+            $CPAN::Frontend->myprint(".");
             if ($subr =~ /\bshell\b/i) {
                 # warn "debug[$_[0]]";
 
@@ -1547,12 +2092,83 @@ sub paintdots_onreload {
 
                 $CPAN::GOTOSHELL=1;
             }
-           return;
-       }
-       warn @_;
+            return;
+        }
+        warn @_;
     };
 }
 
+#-> sub CPAN::Shell::hosts ;
+sub hosts {
+    my($self) = @_;
+    my $fullstats = CPAN::FTP->_ftp_statistics();
+    my $history = $fullstats->{history} || [];
+    my %S; # statistics
+    while (my $last = pop @$history) {
+        my $attempts = $last->{attempts} or next;
+        my $start;
+        if (@$attempts) {
+            $start = $attempts->[-1]{start};
+            if ($#$attempts > 0) {
+                for my $i (0..$#$attempts-1) {
+                    my $url = $attempts->[$i]{url} or next;
+                    $S{no}{$url}++;
+                }
+            }
+        } else {
+            $start = $last->{start};
+        }
+        next unless $last->{thesiteurl}; # C-C? bad filenames?
+        $S{start} = $start;
+        $S{end} ||= $last->{end};
+        my $dltime = $last->{end} - $start;
+        my $dlsize = $last->{filesize} || 0;
+        my $url = ref $last->{thesiteurl} ? $last->{thesiteurl}->text : $last->{thesiteurl};
+        my $s = $S{ok}{$url} ||= {};
+        $s->{n}++;
+        $s->{dlsize} ||= 0;
+        $s->{dlsize} += $dlsize/1024;
+        $s->{dltime} ||= 0;
+        $s->{dltime} += $dltime;
+    }
+    my $res;
+    for my $url (keys %{$S{ok}}) {
+        next if $S{ok}{$url}{dltime} == 0; # div by zero
+        push @{$res->{ok}}, [@{$S{ok}{$url}}{qw(n dlsize dltime)},
+                             $S{ok}{$url}{dlsize}/$S{ok}{$url}{dltime},
+                             $url,
+                            ];
+    }
+    for my $url (keys %{$S{no}}) {
+        push @{$res->{no}}, [$S{no}{$url},
+                             $url,
+                            ];
+    }
+    my $R = ""; # report
+    if ($S{start} && $S{end}) {
+        $R .= sprintf "Log starts: %s\n", $S{start} ? scalar(localtime $S{start}) : "unknown";
+        $R .= sprintf "Log ends  : %s\n", $S{end}   ? scalar(localtime $S{end})   : "unknown";
+    }
+    if ($res->{ok} && @{$res->{ok}}) {
+        $R .= sprintf "\nSuccessful downloads:
+   N       kB  secs      kB/s url\n";
+        my $i = 20;
+        for (sort { $b->[3] <=> $a->[3] } @{$res->{ok}}) {
+            $R .= sprintf "%4d %8d %5d %9.1f %s\n", @$_;
+            last if --$i<=0;
+        }
+    }
+    if ($res->{no} && @{$res->{no}}) {
+        $R .= sprintf "\nUnsuccessful downloads:\n";
+        my $i = 20;
+        for (sort { $b->[0] <=> $a->[0] } @{$res->{no}}) {
+            $R .= sprintf "%4d %s\n", @$_;
+            last if --$i<=0;
+        }
+    }
+    $CPAN::Frontend->myprint($R);
+}
+
 #-> sub CPAN::Shell::reload ;
 sub reload {
     my($self,$command,@arg) = @_;
@@ -1564,13 +2180,17 @@ sub reload {
         my $failed;
         my @relo = (
                     "CPAN.pm",
-                    "CPAN/HandleConfig.pm",
-                    "CPAN/FirstTime.pm",
-                    "CPAN/Tarzip.pm",
                     "CPAN/Debug.pm",
-                    "CPAN/Version.pm",
+                    "CPAN/FirstTime.pm",
+                    "CPAN/HandleConfig.pm",
+                    "CPAN/Kwalify.pm",
                     "CPAN/Queue.pm",
+                    "CPAN/Reporter/Config.pm",
+                    "CPAN/Reporter/History.pm",
                     "CPAN/Reporter.pm",
+                    "CPAN/SQLite.pm",
+                    "CPAN/Tarzip.pm",
+                    "CPAN/Version.pm",
                    );
       MFILE: for my $f (@relo) {
             next unless exists $INC{$f};
@@ -1579,7 +2199,7 @@ sub reload {
             $p =~ s|/|::|g;
             $CPAN::Frontend->myprint("($p");
             local($SIG{__WARN__}) = paintdots_onreload(\$redef);
-            $self->reload_this($f) or $failed++;
+            $self->_reload_this($f) or $failed++;
             my $v = eval "$p\::->VERSION";
             $CPAN::Frontend->myprint("v$v)");
         }
@@ -1598,8 +2218,8 @@ index    re-reads the index files\n});
 }
 
 # reload means only load again what we have loaded before
-#-> sub CPAN::Shell::reload_this ;
-sub reload_this {
+#-> sub CPAN::Shell::_reload_this ;
+sub _reload_this {
     my($self,$f,$args) = @_;
     CPAN->debug("f[$f]") if $CPAN::DEBUG;
     return 1 unless $INC{$f}; # we never loaded this, so we do not
@@ -1617,7 +2237,12 @@ sub reload_this {
     unless ($file && -f $file) {
         # this thingie is not in the INC path, maybe CPAN/MyConfig.pm?
         $file = $INC{$f};
-        @inc = substr($file,0,-length($f)); # bring in back to me!
+        unless (CPAN->has_inst("File::Basename")) {
+            @inc = File::Basename::dirname($file);
+        } else {
+            # do we ever need this?
+            @inc = substr($file,0,-length($f)-1); # bring in back to me!
+        }
     }
     CPAN->debug("file[$file]inc[@inc]") if $CPAN::DEBUG;
     unless (-f $file) {
@@ -1625,10 +2250,16 @@ sub reload_this {
         return;
     }
     my $mtime = (stat $file)[9];
-    $reload->{$f} ||= $^T;
-    my $must_reload = $mtime > $reload->{$f};
+    if ($reload->{$f}) {
+    } elsif ($^T < $mtime) {
+        # since we started the file has changed, force it to be reloaded
+        $reload->{$f} = -1;
+    } else {
+        $reload->{$f} = $mtime;
+    }
+    my $must_reload = $mtime != $reload->{$f};
     $args ||= {};
-    $must_reload ||= $args->{force};
+    $must_reload ||= $args->{reloforce}; # o conf defaults needs this
     if ($must_reload) {
         my $fh = FileHandle->new($file) or
             $CPAN::Frontend->mydie("Could not open $file: $!");
@@ -1640,11 +2271,11 @@ sub reload_this {
         delete $INC{$f};
         local @INC = @inc;
         eval "require '$f'";
-        if ($@){
+        if ($@) {
             warn $@;
             return;
         }
-        $reload->{$f} = time;
+        $reload->{$f} = $mtime;
     } else {
         $CPAN::Frontend->myprint("__unchanged__");
     }
@@ -1676,15 +2307,15 @@ sub _binary_extensions {
     my($self) = shift @_;
     my(@result,$module,%seen,%need,$headerdone);
     for $module ($self->expand('Module','/./')) {
-       my $file  = $module->cpan_file;
-       next if $file eq "N/A";
-       next if $file =~ /^Contact Author/;
+        my $file  = $module->cpan_file;
+        next if $file eq "N/A";
+        next if $file =~ /^Contact Author/;
         my $dist = $CPAN::META->instance('CPAN::Distribution',$file);
-       next if $dist->isa_perl;
-       next unless $module->xs_file;
-       local($|) = 1;
-       $CPAN::Frontend->myprint(".");
-       push @result, $module;
+        next if $dist->isa_perl;
+        next unless $module->xs_file;
+        local($|) = 1;
+        $CPAN::Frontend->myprint(".");
+        push @result, $module;
     }
 #    print join " | ", @result;
     $CPAN::Frontend->myprint("\n");
@@ -1696,18 +2327,18 @@ sub recompile {
     my($self) = shift @_;
     my($module,@module,$cpan_file,%dist);
     @module = $self->_binary_extensions();
-    for $module (@module) # we force now and compile later, so we
+    for $module (@module) { # we force now and compile later, so we
                             # don't do it twice
-       $cpan_file = $module->cpan_file;
-       my $pack = $CPAN::META->instance('CPAN::Distribution',$cpan_file);
-       $pack->force;
-       $dist{$cpan_file}++;
+        $cpan_file = $module->cpan_file;
+        my $pack = $CPAN::META->instance('CPAN::Distribution',$cpan_file);
+        $pack->force;
+        $dist{$cpan_file}++;
     }
     for $cpan_file (sort keys %dist) {
-       $CPAN::Frontend->myprint("  CPAN: Recompiling $cpan_file\n\n");
-       my $pack = $CPAN::META->instance('CPAN::Distribution',$cpan_file);
-       $pack->install;
-       $CPAN::Signal = 0; # it's tempting to reset Signal, so we can
+        $CPAN::Frontend->myprint("  CPAN: Recompiling $cpan_file\n\n");
+        my $pack = $CPAN::META->instance('CPAN::Distribution',$cpan_file);
+        $pack->install;
+        $CPAN::Signal = 0; # it's tempting to reset Signal, so we can
                            # stop a package from recompiling,
                            # e.g. IO-1.12 when we have perl5.003_10
     }
@@ -1783,7 +2414,64 @@ sub report {
         $CPAN::Frontend->mydie("CPAN::Reporter not installed; cannot continue");
     }
     local $CPAN::Config->{test_report} = 1;
-    $self->force("test",@args);
+    $self->force("test",@args); # force is there so that the test be
+                                # re-run (as documented)
+}
+
+# compare with is_tested
+#-> sub CPAN::Shell::install_tested
+sub install_tested {
+    my($self,@some) = @_;
+    $CPAN::Frontend->mywarn("install_tested() must not be called with arguments.\n"),
+        return if @some;
+    CPAN::Index->reload;
+
+    for my $b (reverse $CPAN::META->_list_sorted_descending_is_tested) {
+        my $yaml = "$b.yml";
+        unless (-f $yaml) {
+            $CPAN::Frontend->mywarn("No YAML file for $b available, skipping\n");
+            next;
+        }
+        my $yaml_content = CPAN->_yaml_loadfile($yaml);
+        my $id = $yaml_content->[0]{distribution}{ID};
+        unless ($id) {
+            $CPAN::Frontend->mywarn("No ID found in '$yaml', skipping\n");
+            next;
+        }
+        my $do = CPAN::Shell->expandany($id);
+        unless ($do) {
+            $CPAN::Frontend->mywarn("Could not expand ID '$id', skipping\n");
+            next;
+        }
+        unless ($do->{build_dir}) {
+            $CPAN::Frontend->mywarn("Distro '$id' has no build_dir, skipping\n");
+            next;
+        }
+        unless ($do->{build_dir} eq $b) {
+            $CPAN::Frontend->mywarn("Distro '$id' has build_dir '$do->{build_dir}' but expected '$b', skipping\n");
+            next;
+        }
+        push @some, $do;
+    }
+
+    $CPAN::Frontend->mywarn("No tested distributions found.\n"),
+        return unless @some;
+
+    @some = grep { $_->{make_test} && ! $_->{make_test}->failed } @some;
+    $CPAN::Frontend->mywarn("No distributions tested with this build of perl found.\n"),
+        return unless @some;
+
+    # @some = grep { not $_->uptodate } @some;
+    # $CPAN::Frontend->mywarn("No non-uptodate distributions tested with this build of perl found.\n"),
+    #     return unless @some;
+
+    CPAN->debug("some[@some]");
+    for my $d (@some) {
+        my $id = $d->can("pretty_id") ? $d->pretty_id : $d->id;
+        $CPAN::Frontend->myprint("install_tested: Running for $id\n");
+        $CPAN::Frontend->mysleep(1);
+        $self->install($d);
+    }
 }
 
 #-> sub CPAN::Shell::upgrade ;
@@ -1802,7 +2490,8 @@ sub _u_r_common {
     my(@args) = @_;
     @args = '/./' unless @args;
     my(@result,$module,%seen,%need,$headerdone,
-       $version_undefs,$version_zeroes);
+       $version_undefs,$version_zeroes,
+       @version_undefs,@version_zeroes);
     $version_undefs = $version_zeroes = 0;
     my $sprintf = "%s%-25s%s %9s %9s  %s\n";
     my @expand = $self->expand('Module',@args);
@@ -1812,55 +2501,57 @@ sub _u_r_common {
         $CPAN::Frontend->myprint(sprintf "%d matches in the database\n", $expand);
     }
   MODULE: for $module (@expand) {
-       my $file  = $module->cpan_file;
-       next MODULE unless defined $file; # ??
-        $file =~ s|^./../||;
-       my($latest) = $module->cpan_version;
-       my($inst_file) = $module->inst_file;
-       my($have);
-       return if $CPAN::Signal;
-       if ($inst_file){
-           if ($what eq "a") {
-               $have = $module->inst_version;
-           } elsif ($what eq "r") {
-               $have = $module->inst_version;
-               local($^W) = 0;
-               if ($have eq "undef"){
-                   $version_undefs++;
-               } elsif ($have == 0){
-                   $version_zeroes++;
-               }
-               next MODULE unless CPAN::Version->vgt($latest, $have);
+        my $file  = $module->cpan_file;
+        next MODULE unless defined $file; # ??
+        $file =~ s!^./../!!;
+        my($latest) = $module->cpan_version;
+        my($inst_file) = $module->inst_file;
+        my($have);
+        return if $CPAN::Signal;
+        if ($inst_file) {
+            if ($what eq "a") {
+                $have = $module->inst_version;
+            } elsif ($what eq "r") {
+                $have = $module->inst_version;
+                local($^W) = 0;
+                if ($have eq "undef") {
+                    $version_undefs++;
+                    push @version_undefs, $module->as_glimpse;
+                } elsif (CPAN::Version->vcmp($have,0)==0) {
+                    $version_zeroes++;
+                    push @version_zeroes, $module->as_glimpse;
+                }
+                next MODULE unless CPAN::Version->vgt($latest, $have);
 # to be pedantic we should probably say:
 #    && !($have eq "undef" && $latest ne "undef" && $latest gt "");
 # to catch the case where CPAN has a version 0 and we have a version undef
-           } elsif ($what eq "u") {
-               next MODULE;
-           }
-       } else {
-           if ($what eq "a") {
-               next MODULE;
-           } elsif ($what eq "r") {
-               next MODULE;
-           } elsif ($what eq "u") {
-               $have = "-";
-           }
-       }
-       return if $CPAN::Signal; # this is sometimes lengthy
-       $seen{$file} ||= 0;
-       if ($what eq "a") {
-           push @result, sprintf "%s %s\n", $module->id, $have;
-       } elsif ($what eq "r") {
-           push @result, $module->id;
-           next MODULE if $seen{$file}++;
-       } elsif ($what eq "u") {
-           push @result, $module->id;
-           next MODULE if $seen{$file}++;
-           next MODULE if $file =~ /^Contact/;
-       }
-       unless ($headerdone++){
-           $CPAN::Frontend->myprint("\n");
-           $CPAN::Frontend->myprint(sprintf(
+            } elsif ($what eq "u") {
+                next MODULE;
+            }
+        } else {
+            if ($what eq "a") {
+                next MODULE;
+            } elsif ($what eq "r") {
+                next MODULE;
+            } elsif ($what eq "u") {
+                $have = "-";
+            }
+        }
+        return if $CPAN::Signal; # this is sometimes lengthy
+        $seen{$file} ||= 0;
+        if ($what eq "a") {
+            push @result, sprintf "%s %s\n", $module->id, $have;
+        } elsif ($what eq "r") {
+            push @result, $module->id;
+            next MODULE if $seen{$file}++;
+        } elsif ($what eq "u") {
+            push @result, $module->id;
+            next MODULE if $seen{$file}++;
+            next MODULE if $file =~ /^Contact/;
+        }
+        unless ($headerdone++) {
+            $CPAN::Frontend->myprint("\n");
+            $CPAN::Frontend->myprint(sprintf(
                                              $sprintf,
                                              "",
                                              "Package namespace",
@@ -1869,10 +2560,9 @@ sub _u_r_common {
                                              "latest",
                                              "in CPAN file"
                                             ));
-       }
+        }
         my $color_on = "";
         my $color_off = "";
-        # $GLOBAL_AUTOLOAD_RECURSION = 12;
         if (
             $COLOR_REGISTERED
             &&
@@ -1883,33 +2573,51 @@ sub _u_r_common {
             $color_on = Term::ANSIColor::color("green");
             $color_off = Term::ANSIColor::color("reset");
         }
-       $CPAN::Frontend->myprint(sprintf $sprintf,
+        $CPAN::Frontend->myprint(sprintf $sprintf,
                                  $color_on,
                                  $module->id,
                                  $color_off,
                                  $have,
                                  $latest,
                                  $file);
-       $need{$module->id}++;
+        $need{$module->id}++;
     }
     unless (%need) {
-       if ($what eq "u") {
-           $CPAN::Frontend->myprint("No modules found for @args\n");
-       } elsif ($what eq "r") {
-           $CPAN::Frontend->myprint("All modules are up to date for @args\n");
-       }
+        if ($what eq "u") {
+            $CPAN::Frontend->myprint("No modules found for @args\n");
+        } elsif ($what eq "r") {
+            $CPAN::Frontend->myprint("All modules are up to date for @args\n");
+        }
     }
     if ($what eq "r") {
-       if ($version_zeroes) {
-           my $s_has = $version_zeroes > 1 ? "s have" : " has";
-           $CPAN::Frontend->myprint(qq{$version_zeroes installed module$s_has }.
-               qq{a version number of 0\n});
-       }
-       if ($version_undefs) {
-           my $s_has = $version_undefs > 1 ? "s have" : " has";
-           $CPAN::Frontend->myprint(qq{$version_undefs installed module$s_has no }.
-               qq{parseable version number\n});
-       }
+        if ($version_zeroes) {
+            my $s_has = $version_zeroes > 1 ? "s have" : " has";
+            $CPAN::Frontend->myprint(qq{$version_zeroes installed module$s_has }.
+                                     qq{a version number of 0\n});
+            if ($CPAN::Config->{show_zero_versions}) {
+                local $" = "\t";
+                $CPAN::Frontend->myprint(qq{  they are\n\t@version_zeroes\n});
+                $CPAN::Frontend->myprint(qq{(use 'o conf show_zero_versions 0' }.
+                                         qq{to hide them)\n});
+            } else {
+                $CPAN::Frontend->myprint(qq{(use 'o conf show_zero_versions 1' }.
+                                         qq{to show them)\n});
+            }
+        }
+        if ($version_undefs) {
+            my $s_has = $version_undefs > 1 ? "s have" : " has";
+            $CPAN::Frontend->myprint(qq{$version_undefs installed module$s_has no }.
+                                     qq{parseable version number\n});
+            if ($CPAN::Config->{show_unparsable_versions}) {
+                local $" = "\t";
+                $CPAN::Frontend->myprint(qq{  they are\n\t@version_undefs\n});
+                $CPAN::Frontend->myprint(qq{(use 'o conf show_unparsable_versions 0' }.
+                                         qq{to hide them)\n});
+            } else {
+                $CPAN::Frontend->myprint(qq{(use 'o conf show_unparsable_versions 1' }.
+                                         qq{to show them)\n});
+            }
+        }
     }
     @result;
 }
@@ -1930,7 +2638,8 @@ sub failed {
     my @failed;
   DIST: for my $d ($CPAN::META->all_objects("CPAN::Distribution")) {
         my $failed = "";
-      NAY: for my $nosayer (
+      NAY: for my $nosayer ( # order matters!
+                            "unwrapped",
                             "writemakefile",
                             "signature_verify",
                             "make",
@@ -1939,13 +2648,14 @@ sub failed {
                             "make_clean",
                            ) {
             next unless exists $d->{$nosayer};
+            next unless defined $d->{$nosayer};
             next unless (
-                         $d->{$nosayer}->can("failed") ?
+                         UNIVERSAL::can($d->{$nosayer},"failed") ?
                          $d->{$nosayer}->failed :
                          $d->{$nosayer} =~ /^NO/
                         );
             next NAY if $only_id && $only_id != (
-                                                 $d->{$nosayer}->can("commandid")
+                                                 UNIVERSAL::can($d->{$nosayer},"commandid")
                                                  ?
                                                  $d->{$nosayer}->commandid
                                                  :
@@ -1961,29 +2671,52 @@ sub failed {
         #                  "  %-45s: %s %s\n",
         push @failed,
             (
-             $d->{$failed}->can("failed") ?
+             UNIVERSAL::can($d->{$failed},"failed") ?
              [
               $d->{$failed}->commandid,
               $id,
               $failed,
               $d->{$failed}->text,
+              $d->{$failed}{TIME}||0,
              ] :
              [
               1,
               $id,
               $failed,
               $d->{$failed},
+              0,
              ]
             );
     }
-    my $scope = $only_id ? "command" : "session";
+    my $scope;
+    if ($only_id) {
+        $scope = "this command";
+    } elsif ($CPAN::Index::HAVE_REANIMATED) {
+        $scope = "this or a previous session";
+        # it might be nice to have a section for previous session and
+        # a second for this
+    } else {
+        $scope = "this session";
+    }
     if (@failed) {
-        my $print = join "",
-            map { sprintf "  %-45s: %s %s\n", @$_[1,2,3] }
-                sort { $a->[0] <=> $b->[0] } @failed;
-        $CPAN::Frontend->myprint("Failed during this $scope:\n$print");
+        my $print;
+        my $debug = 0;
+        if ($debug) {
+            $print = join "",
+                map { sprintf "%5d %-45s: %s %s\n", @$_ }
+                    sort { $a->[0] <=> $b->[0] } @failed;
+        } else {
+            $print = join "",
+                map { sprintf " %-45s: %s %s\n", @$_[1..3] }
+                    sort {
+                        $a->[0] <=> $b->[0]
+                            ||
+                                $a->[4] <=> $b->[4]
+                       } @failed;
+        }
+        $CPAN::Frontend->myprint("Failed during $scope:\n$print");
     } elsif (!$only_id || !$silent) {
-        $CPAN::Frontend->myprint("Nothing failed in this $scope\n");
+        $CPAN::Frontend->myprint("Nothing failed in $scope\n");
     }
 }
 
@@ -2021,6 +2754,23 @@ sub status {
     }
 }
 
+# compare with install_tested
+#-> sub CPAN::Shell::is_tested
+sub is_tested {
+    my($self) = @_;
+    CPAN::Index->reload;
+    for my $b (reverse $CPAN::META->_list_sorted_descending_is_tested) {
+        my $time;
+        if ($CPAN::META->{is_tested}{$b}) {
+            $time = scalar(localtime $CPAN::META->{is_tested}{$b});
+        } else {
+            $time = scalar localtime;
+            $time =~ s/\S/?/g;
+        }
+        $CPAN::Frontend->myprint(sprintf "%s %s\n", $time, $b);
+    }
+}
+
 #-> sub CPAN::Shell::autobundle ;
 sub autobundle {
     my($self) = shift;
@@ -2029,8 +2779,8 @@ sub autobundle {
     my($todir) = File::Spec->catdir($CPAN::Config->{'cpan_home'},"Bundle");
     File::Path::mkpath($todir);
     unless (-d $todir) {
-       $CPAN::Frontend->myprint("Couldn't mkdir $todir for some reason\n");
-       return;
+        $CPAN::Frontend->myprint("Couldn't mkdir $todir for some reason\n");
+        return;
     }
     my($y,$m,$d) =  (localtime)[5,4,3];
     $y+=1900;
@@ -2039,30 +2789,30 @@ sub autobundle {
     my($me) = sprintf "Snapshot_%04d_%02d_%02d_%02d", $y, $m, $d, $c;
     my($to) = File::Spec->catfile($todir,"$me.pm");
     while (-f $to) {
-       $me = sprintf "Snapshot_%04d_%02d_%02d_%02d", $y, $m, $d, ++$c;
-       $to = File::Spec->catfile($todir,"$me.pm");
+        $me = sprintf "Snapshot_%04d_%02d_%02d_%02d", $y, $m, $d, ++$c;
+        $to = File::Spec->catfile($todir,"$me.pm");
     }
     my($fh) = FileHandle->new(">$to") or Carp::croak "Can't open >$to: $!";
     $fh->print(
-              "package Bundle::$me;\n\n",
-              "\$VERSION = '0.01';\n\n",
-              "1;\n\n",
-              "__END__\n\n",
-              "=head1 NAME\n\n",
-              "Bundle::$me - Snapshot of installation on ",
-              $Config::Config{'myhostname'},
-              " on ",
-              scalar(localtime),
-              "\n\n=head1 SYNOPSIS\n\n",
-              "perl -MCPAN -e 'install Bundle::$me'\n\n",
-              "=head1 CONTENTS\n\n",
-              join("\n", @bundle),
-              "\n\n=head1 CONFIGURATION\n\n",
-              Config->myconfig,
-              "\n\n=head1 AUTHOR\n\n",
-              "This Bundle has been generated automatically ",
-              "by the autobundle routine in CPAN.pm.\n",
-             );
+               "package Bundle::$me;\n\n",
+               "\$VERSION = '0.01';\n\n",
+               "1;\n\n",
+               "__END__\n\n",
+               "=head1 NAME\n\n",
+               "Bundle::$me - Snapshot of installation on ",
+               $Config::Config{'myhostname'},
+               " on ",
+               scalar(localtime),
+               "\n\n=head1 SYNOPSIS\n\n",
+               "perl -MCPAN -e 'install Bundle::$me'\n\n",
+               "=head1 CONTENTS\n\n",
+               join("\n", @bundle),
+               "\n\n=head1 CONFIGURATION\n\n",
+               Config->myconfig,
+               "\n\n=head1 AUTHOR\n\n",
+               "This Bundle has been generated automatically ",
+               "by the autobundle routine in CPAN.pm.\n",
+              );
     $fh->close;
     $CPAN::Frontend->myprint("\nWrote bundle file
     $to\n\n");
@@ -2097,35 +2847,38 @@ sub expand {
     my $class = "CPAN::$type";
     my $methods = ['id'];
     for my $meth (qw(name)) {
-        next if $] < 5.00303; # no "can"
         next unless $class->can($meth);
         push @$methods, $meth;
     }
     $self->expand_by_method($class,$methods,@args);
 }
 
+#-> sub CPAN::Shell::expand_by_method ;
 sub expand_by_method {
     my $self = shift;
     my($class,$methods,@args) = @_;
     my($arg,@m);
     for $arg (@args) {
-       my($regex,$command);
-       if ($arg =~ m|^/(.*)/$|) {
-           $regex = $1;
-       } elsif ($arg =~ m/=/) {
+        my($regex,$command);
+        if ($arg =~ m|^/(.*)/$|) {
+            $regex = $1;
+        } elsif ($arg =~ m/=/) {
             $command = 1;
         }
-       my $obj;
+        my $obj;
         CPAN->debug(sprintf "class[%s]regex[%s]command[%s]",
                     $class,
                     defined $regex ? $regex : "UNDEFINED",
                     defined $command ? $command : "UNDEFINED",
                    ) if $CPAN::DEBUG;
-       if (defined $regex) {
+        if (defined $regex) {
+            if (CPAN::_sqlite_running) {
+                $CPAN::SQLite->search($class, $regex);
+            }
             for $obj (
                       $CPAN::META->all_objects($class)
                      ) {
-                unless ($obj->id){
+                unless ($obj && UNIVERSAL::can($obj,"id") && $obj->id) {
                     # BUG, we got an empty object somewhere
                     require Data::Dumper;
                     CPAN->debug(sprintf(
@@ -2168,24 +2921,24 @@ that may go away anytime.\n"
                     push @m, $self if $lhs eq $criterion;
                 }
             }
-       } else {
-           my($xarg) = $arg;
-           if ( $class eq 'CPAN::Bundle' ) {
-               $xarg =~ s/^(Bundle::)?(.*)/Bundle::$2/;
-           } elsif ($class eq "CPAN::Distribution") {
+        } else {
+            my($xarg) = $arg;
+            if ( $class eq 'CPAN::Bundle' ) {
+                $xarg =~ s/^(Bundle::)?(.*)/Bundle::$2/;
+            } elsif ($class eq "CPAN::Distribution") {
                 $xarg = CPAN::Distribution->normalize($arg);
             } else {
                 $xarg =~ s/:+/::/g;
             }
-           if ($CPAN::META->exists($class,$xarg)) {
-               $obj = $CPAN::META->instance($class,$xarg);
-           } elsif ($CPAN::META->exists($class,$arg)) {
-               $obj = $CPAN::META->instance($class,$arg);
-           } else {
-               next;
-           }
-           push @m, $obj;
-       }
+            if ($CPAN::META->exists($class,$xarg)) {
+                $obj = $CPAN::META->instance($class,$xarg);
+            } elsif ($CPAN::META->exists($class,$arg)) {
+                $obj = $CPAN::META->instance($class,$arg);
+            } else {
+                next;
+            }
+            push @m, $obj;
+        }
     }
     @m = sort {$a->id cmp $b->id} @m;
     if ( $CPAN::DEBUG ) {
@@ -2203,7 +2956,7 @@ sub format_result {
     @args = '/./' unless @args;
     my(@result) = $self->expand($type,@args);
     my $result = @result == 1 ?
-       $result[0]->as_string :
+        $result[0]->as_string :
             @result == 0 ?
                 "No objects of type $type found for argument @args\n" :
                     join("",
@@ -2223,6 +2976,7 @@ sub format_result {
         if ($CPAN::META->has_inst("File::Temp")) {
             $installation_report_fh
                 = File::Temp->new(
+                                  dir      => File::Spec->tmpdir,
                                   template => 'cpan_install_XXXX',
                                   suffix   => '.txt',
                                   unlink   => 0,
@@ -2262,6 +3016,7 @@ installed. To activate colorized output, please install Term::ANSIColor.\n\n";
 }
 
 
+#-> sub CPAN::Shell::print_ornamented ;
 sub print_ornamented {
     my($self,$what,$ornament) = @_;
     return unless defined $what;
@@ -2272,7 +3027,8 @@ sub print_ornamented {
         return;
     }
     my $swhat = "$what"; # stringify if it is an object
-    if ($CPAN::Config->{term_is_latin}){
+    if ($CPAN::Config->{term_is_latin}) {
+        # note: deprecated, need to switch to $LANG and $LC_*
         # courtesy jhi:
         $swhat
             =~ s{([\xC0-\xDF])([\x80-\xBF])}{chr(ord($1)<<6&0xC0|ord($2)&0x3F)}eg; #};
@@ -2280,48 +3036,72 @@ sub print_ornamented {
     if ($self->colorize_output) {
         if ( $CPAN::DEBUG && $swhat =~ /^Debug\(/ ) {
             # if you want to have this configurable, please file a bugreport
-            $ornament = "black on_cyan";
+            $ornament = $CPAN::Config->{colorize_debug} || "black on_cyan";
         }
         my $color_on = eval { Term::ANSIColor::color($ornament) } || "";
         if ($@) {
             print "Term::ANSIColor rejects color[$ornament]: $@\n
-Please choose a different color (Hint: try 'o conf init color.*')\n";
+Please choose a different color (Hint: try 'o conf init /color/')\n";
         }
+        # GGOLDBACH/Test-GreaterVersion-0.008 broke wthout this
+        # $trailer construct. We want the newline be the last thing if
+        # there is a newline at the end ensuring that the next line is
+        # empty for other players
+        my $trailer = "";
+        $trailer = $1 if $swhat =~ s/([\r\n]+)\z//;
         print $color_on,
             $swhat,
-                Term::ANSIColor::color("reset");
+                Term::ANSIColor::color("reset"),
+                      $trailer;
     } else {
         print $swhat;
     }
 }
 
-# where is myprint/mywarn/Frontend/etc. documented? We need guidelines
-# where to use what! I think, we send everything to STDOUT and use
-# print for normal/good news and warn for news that need more
-# attention. Yes, this is our working contract for now.
+#-> sub CPAN::Shell::myprint ;
+
+# where is myprint/mywarn/Frontend/etc. documented? Where to use what?
+# I think, we send everything to STDOUT and use print for normal/good
+# news and warn for news that need more attention. Yes, this is our
+# working contract for now.
 sub myprint {
     my($self,$what) = @_;
+    $self->print_ornamented($what,
+                            $CPAN::Config->{colorize_print}||'bold blue on_white',
+                           );
+}
 
-    $self->print_ornamented($what, $CPAN::Config->{colorize_print}||'bold blue on_white');
+sub optprint {
+    my($self,$category,$what) = @_;
+    my $vname = $category . "_verbosity";
+    CPAN::HandleConfig->load unless $CPAN::Config_loaded++;
+    if (!$CPAN::Config->{$vname}
+        || $CPAN::Config->{$vname} =~ /^v/
+       ) {
+        $CPAN::Frontend->myprint($what);
+    }
 }
 
+#-> sub CPAN::Shell::myexit ;
 sub myexit {
     my($self,$what) = @_;
     $self->myprint($what);
     exit;
 }
 
+#-> sub CPAN::Shell::mywarn ;
 sub mywarn {
     my($self,$what) = @_;
     $self->print_ornamented($what, $CPAN::Config->{colorize_warn}||'bold red on_white');
 }
 
 # only to be used for shell commands
+#-> sub CPAN::Shell::mydie ;
 sub mydie {
     my($self,$what) = @_;
-    $self->print_ornamented($what, $CPAN::Config->{colorize_warn}||'bold red on_white');
+    $self->mywarn($what);
 
-    # If it is the shell, we want that the following die to be silent,
+    # If it is the shell, we want the following die to be silent,
     # but if it is not the shell, we would need a 'die $what'. We need
     # to take care that only shell commands use mydie. Is this
     # possible?
@@ -2329,7 +3109,7 @@ sub mydie {
     die "\n";
 }
 
-# sub CPAN::Shell::colorable_makemaker_prompt
+# sub CPAN::Shell::colorable_makemaker_prompt ;
 sub colorable_makemaker_prompt {
     my($foo,$bar) = @_;
     if (CPAN::Shell->colorize_output) {
@@ -2345,6 +3125,7 @@ sub colorable_makemaker_prompt {
 }
 
 # use this only for unrecoverable errors!
+#-> sub CPAN::Shell::unrecoverable_error ;
 sub unrecoverable_error {
     my($self,$what) = @_;
     my @lines = split /\n/, $what;
@@ -2354,7 +3135,7 @@ sub unrecoverable_error {
     }
     $longest = 62 if $longest > 62;
     for my $l (@lines) {
-        if ($l =~ /^\s*$/){
+        if ($l =~ /^\s*$/) {
             $l = "\n";
             next;
         }
@@ -2368,11 +3149,17 @@ sub unrecoverable_error {
     $self->mydie(join "", @lines);
 }
 
+#-> sub CPAN::Shell::mysleep ;
 sub mysleep {
     my($self, $sleep) = @_;
-    sleep $sleep;
+    if (CPAN->has_inst("Time::HiRes")) {
+        Time::HiRes::sleep($sleep);
+    } else {
+        sleep($sleep < 1 ? 1 : int($sleep + 0.5));
+    }
 }
 
+#-> sub CPAN::Shell::setup_output ;
 sub setup_output {
     return if -t STDOUT;
     my $odef = select STDERR;
@@ -2383,14 +3170,14 @@ sub setup_output {
 }
 
 #-> sub CPAN::Shell::rematein ;
-# RE-adme||MA-ke||TE-st||IN-stall
+# RE-adme||MA-ke||TE-st||IN-stall : nearly everything runs through here
 sub rematein {
     my $self = shift;
     my($meth,@some) = @_;
     my @pragma;
-    while($meth =~ /^(force|notest)$/) {
-       push @pragma, $meth;
-       $meth = shift @some or
+    while($meth =~ /^(ff?orce|notest)$/) {
+        push @pragma, $meth;
+        $meth = shift @some or
             $CPAN::Frontend->mydie("Pragma $pragma[-1] used without method: ".
                                    "cannot continue");
     }
@@ -2411,15 +3198,19 @@ sub rematein {
     # enter the queue but not its copy. How do they get a sensible
     # test_count?
 
+    # With configure_requires, "get" is vulnerable in recursion.
+
+    my $needs_recursion_protection = "get|make|test|install";
+
     # construct the queue
     my($s,@s,@qcopy);
   STHING: foreach $s (@some) {
-       my $obj;
-       if (ref $s) {
+        my $obj;
+        if (ref $s) {
             CPAN->debug("s is an object[$s]") if $CPAN::DEBUG;
-           $obj = $s;
-       } elsif ($s =~ m|[\$\@\%]|) { # looks like a perl variable
-       } elsif ($s =~ m|^/|) { # looks like a regexp
+            $obj = $s;
+        } elsif ($s =~ m|[\$\@\%]|) { # looks like a perl variable
+        } elsif ($s =~ m|^/|) { # looks like a regexp
             if (substr($s,-1,1) eq ".") {
                 $obj = CPAN::Shell->expandany($s);
             } else {
@@ -2428,21 +3219,38 @@ sub rematein {
                 $CPAN::Frontend->mysleep(2);
                 next;
             }
-       } elsif ($meth eq "ls") {
+        } elsif ($meth eq "ls") {
             $self->globls($s,\@pragma);
             next STHING;
         } else {
             CPAN->debug("calling expandany [$s]") if $CPAN::DEBUG;
-           $obj = CPAN::Shell->expandany($s);
-       }
-       if (0) {
+            $obj = CPAN::Shell->expandany($s);
+        }
+        if (0) {
         } elsif (ref $obj) {
-            $obj->color_cmd_tmps(0,1);
-            CPAN::Queue->new(qmod => $obj->id, reqtype => "c");
+            if ($meth =~ /^($needs_recursion_protection)$/) {
+                # it would be silly to check for recursion for look or dump
+                # (we are in CPAN::Shell::rematein)
+                CPAN->debug("Going to test against recursion") if $CPAN::DEBUG;
+                eval {  $obj->color_cmd_tmps(0,1); };
+                if ($@) {
+                    if (ref $@
+                        and $@->isa("CPAN::Exception::RecursiveDependency")) {
+                        $CPAN::Frontend->mywarn($@);
+                    } else {
+                        if (0) {
+                            require Carp;
+                            Carp::confess(sprintf "DEBUG: \$\@[%s]ref[%s]", $@, ref $@);
+                        }
+                        die;
+                    }
+                }
+            }
+            CPAN::Queue->queue_item(qmod => $obj->id, reqtype => "c");
             push @qcopy, $obj;
-       } elsif ($CPAN::META->exists('CPAN::Author',uc($s))) {
-           $obj = $CPAN::META->instance('CPAN::Author',uc($s));
-            if ($meth =~ /^(dump|ls)$/) {
+        } elsif ($CPAN::META->exists('CPAN::Author',uc($s))) {
+            $obj = $CPAN::META->instance('CPAN::Author',uc($s));
+            if ($meth =~ /^(dump|ls|reports)$/) {
                 $obj->$meth();
             } else {
                 $CPAN::Frontend->mywarn(
@@ -2453,12 +3261,12 @@ sub rematein {
                                        );
                 $CPAN::Frontend->mysleep(2);
             }
-       } elsif ($s =~ m|[\$\@\%]| && $meth eq "dump") {
+        } elsif ($s =~ m|[\$\@\%]| && $meth eq "dump") {
             CPAN::InfoObj->dump($s);
         } else {
-           $CPAN::Frontend
-               ->mywarn(qq{Warning: Cannot $meth $s, }.
-                         qq{don't know what it is.
+            $CPAN::Frontend
+                ->mywarn(qq{Warning: Cannot $meth $s, }.
+                         qq{don't know what it is.
 Try the command
 
     i /$s/
@@ -2466,7 +3274,7 @@ Try the command
 to find objects with matching identifiers.
 });
             $CPAN::Frontend->mysleep(2);
-       }
+        }
     }
 
     # queuerunner (please be warned: when I started to change the
@@ -2477,9 +3285,26 @@ to find objects with matching identifiers.
         my $s = $q->as_string;
         my $reqtype = $q->reqtype || "";
         $obj = CPAN::Shell->expandany($s);
+        unless ($obj) {
+            # don't know how this can happen, maybe we should panic,
+            # but maybe we get a solution from the first user who hits
+            # this unfortunate exception?
+            $CPAN::Frontend->mywarn("Warning: Could not expand string '$s' ".
+                                    "to an object. Skipping.\n");
+            $CPAN::Frontend->mysleep(5);
+            CPAN::Queue->delete_first($s);
+            next;
+        }
         $obj->{reqtype} ||= "";
-        CPAN->debug("obj-reqtype[$obj->{reqtype}]".
-                    "q-reqtype[$reqtype]") if $CPAN::DEBUG;
+        {
+            # force debugging because CPAN::SQLite somehow delivers us
+            # an empty object;
+
+            # local $CPAN::DEBUG = 1024; # Shell; probably fixed now
+
+            CPAN->debug("s[$s]obj-reqtype[$obj->{reqtype}]".
+                        "q-reqtype[$reqtype]") if $CPAN::DEBUG;
+        }
         if ($obj->{reqtype}) {
             if ($obj->{reqtype} eq "b" && $reqtype =~ /^[rc]$/) {
                 $obj->{reqtype} = $reqtype;
@@ -2487,7 +3312,7 @@ to find objects with matching identifiers.
                     exists $obj->{install}
                     &&
                     (
-                     $obj->{install}->can("failed") ?
+                     UNIVERSAL::can($obj->{install},"failed") ?
                      $obj->{install}->failed :
                      $obj->{install} =~ /^NO/
                     )
@@ -2501,43 +3326,169 @@ to find objects with matching identifiers.
             $obj->{reqtype} = $reqtype;
         }
 
-       for my $pragma (@pragma) {
-           if ($pragma
-               &&
-               ($] < 5.00303 || $obj->can($pragma))){
-               ### compatibility with 5.003
-               $obj->$pragma($meth); # the pragma "force" in
-                                      # "CPAN::Distribution" must know
-                                      # what we are intending
-           }
+        for my $pragma (@pragma) {
+            if ($pragma
+                &&
+                $obj->can($pragma)) {
+                $obj->$pragma($meth);
+            }
         }
-        if ($]>=5.00303 && $obj->can('called_for')) {
+        if (UNIVERSAL::can($obj, 'called_for')) {
             $obj->called_for($s);
         }
         CPAN->debug(qq{pragma[@pragma]meth[$meth]}.
                     qq{ID[$obj->{ID}]}) if $CPAN::DEBUG;
 
         push @qcopy, $obj;
-        if ($obj->$meth()){
+        if ($meth =~ /^(report)$/) { # they came here with a pragma?
+            $self->$meth($obj);
+        } elsif (! UNIVERSAL::can($obj,$meth)) {
+            # Must never happen
+            my $serialized = "";
+            if (0) {
+            } elsif ($CPAN::META->has_inst("YAML::Syck")) {
+                $serialized = YAML::Syck::Dump($obj);
+            } elsif ($CPAN::META->has_inst("YAML")) {
+                $serialized = YAML::Dump($obj);
+            } elsif ($CPAN::META->has_inst("Data::Dumper")) {
+                $serialized = Data::Dumper::Dumper($obj);
+            } else {
+                require overload;
+                $serialized = overload::StrVal($obj);
+            }
+            CPAN->debug("Going to panic. meth[$meth]s[$s]") if $CPAN::DEBUG;
+            $CPAN::Frontend->mydie("Panic: obj[$serialized] cannot meth[$meth]");
+        } elsif ($obj->$meth()) {
             CPAN::Queue->delete($s);
+            CPAN->debug("From queue deleted. meth[$meth]s[$s]") if $CPAN::DEBUG;
         } else {
-            CPAN->debug("failed");
+            CPAN->debug("Failed. pragma[@pragma]meth[$meth]") if $CPAN::DEBUG;
         }
 
         $obj->undelay;
-       CPAN::Queue->delete_first($s);
+        for my $pragma (@pragma) {
+            my $unpragma = "un$pragma";
+            if ($obj->can($unpragma)) {
+                $obj->$unpragma();
+            }
+        }
+        CPAN::Queue->delete_first($s);
     }
-    for my $obj (@qcopy) {
-        $obj->color_cmd_tmps(0,0);
+    if ($meth =~ /^($needs_recursion_protection)$/) {
+        for my $obj (@qcopy) {
+            $obj->color_cmd_tmps(0,0);
+        }
     }
 }
 
 #-> sub CPAN::Shell::recent ;
 sub recent {
   my($self) = @_;
+  if ($CPAN::META->has_inst("XML::LibXML")) {
+      my $url = $CPAN::Defaultrecent;
+      $CPAN::Frontend->myprint("Going to fetch '$url'\n");
+      unless ($CPAN::META->has_usable("LWP")) {
+          $CPAN::Frontend->mydie("LWP not installed; cannot continue");
+      }
+      CPAN::LWP::UserAgent->config;
+      my $Ua;
+      eval { $Ua = CPAN::LWP::UserAgent->new; };
+      if ($@) {
+          $CPAN::Frontend->mydie("CPAN::LWP::UserAgent->new dies with $@\n");
+      }
+      my $resp = $Ua->get($url);
+      unless ($resp->is_success) {
+          $CPAN::Frontend->mydie(sprintf "Could not download '%s': %s\n", $url, $resp->code);
+      }
+      $CPAN::Frontend->myprint("DONE\n\n");
+      my $xml = XML::LibXML->new->parse_string($resp->content);
+      if (0) {
+          my $s = $xml->serialize(2);
+          $s =~ s/\n\s*\n/\n/g;
+          $CPAN::Frontend->myprint($s);
+          return;
+      }
+      my @distros;
+      if ($url =~ /winnipeg/) {
+          my $pubdate = $xml->findvalue("/rss/channel/pubDate");
+          $CPAN::Frontend->myprint("    pubDate: $pubdate\n\n");
+          for my $eitem ($xml->findnodes("/rss/channel/item")) {
+              my $distro = $eitem->findvalue("enclosure/\@url");
+              $distro =~ s|.*?/authors/id/./../||;
+              my $size   = $eitem->findvalue("enclosure/\@length");
+              my $desc   = $eitem->findvalue("description");
+\0              $desc =~ s/.+? - //;
+              $CPAN::Frontend->myprint("$distro [$size b]\n    $desc\n");
+              push @distros, $distro;
+          }
+      } elsif ($url =~ /search.*uploads.rdf/) {
+          # xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+          # xmlns="http://purl.org/rss/1.0/"
+          # xmlns:taxo="http://purl.org/rss/1.0/modules/taxonomy/"
+          # xmlns:dc="http://purl.org/dc/elements/1.1/"
+          # xmlns:syn="http://purl.org/rss/1.0/modules/syndication/"
+          # xmlns:admin="http://webns.net/mvcb/"
+
+
+          my $dc_date = $xml->findvalue("//*[local-name(.) = 'RDF']/*[local-name(.) = 'channel']/*[local-name(.) = 'date']");
+          $CPAN::Frontend->myprint("    dc:date: $dc_date\n\n");
+          my $finish_eitem = 0;
+          local $SIG{INT} = sub { $finish_eitem = 1 };
+        EITEM: for my $eitem ($xml->findnodes("//*[local-name(.) = 'RDF']/*[local-name(.) = 'item']")) {
+              my $distro = $eitem->findvalue("\@rdf:about");
+              $distro =~ s|.*~||; # remove up to the tilde before the name
+              $distro =~ s|/$||; # remove trailing slash
+              $distro =~ s|([^/]+)|\U$1\E|; # upcase the name
+              my $author = uc $1 or die "distro[$distro] without author, cannot continue";
+              my $desc   = $eitem->findvalue("*[local-name(.) = 'description']");
+              my $i = 0;
+            SUBDIRTEST: while () {
+                  last SUBDIRTEST if ++$i >= 6; # half a dozen must do!
+                  if (my @ret = $self->globls("$distro*")) {
+                      @ret = grep {$_->[2] !~ /meta/} @ret;
+                      @ret = grep {length $_->[2]} @ret;
+                      if (@ret) {
+                          $distro = "$author/$ret[0][2]";
+                          last SUBDIRTEST;
+                      }
+                  }
+                  $distro =~ s|/|/*/|; # allow it to reside in a subdirectory
+              }
+
+              next EITEM if $distro =~ m|\*|; # did not find the thing
+              $CPAN::Frontend->myprint("____$desc\n");
+              push @distros, $distro;
+              last EITEM if $finish_eitem;
+          }
+      }
+      return \@distros;
+  } else {
+      # deprecated old version
+      $CPAN::Frontend->mydie("no XML::LibXML installed, cannot continue\n");
+  }
+}
 
-  CPAN::Distribution::_display_url( $self, $CPAN::Defaultrecent );
-  return;
+#-> sub CPAN::Shell::smoke ;
+sub smoke {
+    my($self) = @_;
+    my $distros = $self->recent;
+  DISTRO: for my $distro (@$distros) {
+        $CPAN::Frontend->myprint(sprintf "Going to download and test '$distro'\n");
+        {
+            my $skip = 0;
+            local $SIG{INT} = sub { $skip = 1 };
+            for (0..9) {
+                $CPAN::Frontend->myprint(sprintf "\r%2d (Hit ^C to skip)", 10-$_);
+                sleep 1;
+                if ($skip) {
+                    $CPAN::Frontend->myprint(" skipped\n");
+                    next DISTRO;
+                }
+            }
+        }
+        $CPAN::Frontend->myprint("\r  \n"); # leave the dirty line with a newline
+        $self->test($distro);
+    }
 }
 
 {
@@ -2548,6 +3499,7 @@ sub recent {
                         cvs_import
                         dump
                         force
+                        fforce
                         get
                         install
                         look
@@ -2556,6 +3508,7 @@ sub recent {
                         notest
                         perldoc
                         readme
+                        reports
                         test
                        )) {
         *$command = sub { shift->rematein($command, @_); };
@@ -2629,7 +3582,6 @@ sub get_non_proxy_credentials {
 }
 
 sub _get_username_and_password_from_user {
-    my $self = shift;
     my $username_message = shift;
     my ($username,$password);
 
@@ -2696,6 +3648,164 @@ sub mirror {
 package CPAN::FTP;
 use strict;
 
+#-> sub CPAN::FTP::ftp_statistics
+# if they want to rewrite, they need to pass in a filehandle
+sub _ftp_statistics {
+    my($self,$fh) = @_;
+    my $locktype = $fh ? LOCK_EX : LOCK_SH;
+    $fh ||= FileHandle->new;
+    my $file = File::Spec->catfile($CPAN::Config->{cpan_home},"FTPstats.yml");
+    open $fh, "+>>$file" or $CPAN::Frontend->mydie("Could not open '$file': $!");
+    my $sleep = 1;
+    my $waitstart;
+    while (!CPAN::_flock($fh, $locktype|LOCK_NB)) {
+        $waitstart ||= localtime();
+        if ($sleep>3) {
+            $CPAN::Frontend->mywarn("Waiting for a read lock on '$file' (since $waitstart)\n");
+        }
+        $CPAN::Frontend->mysleep($sleep);
+        if ($sleep <= 3) {
+            $sleep+=0.33;
+        } elsif ($sleep <=6) {
+            $sleep+=0.11;
+        }
+    }
+    my $stats = eval { CPAN->_yaml_loadfile($file); };
+    if ($@) {
+        if (ref $@) {
+            if (ref $@ eq "CPAN::Exception::yaml_not_installed") {
+                $CPAN::Frontend->myprint("Warning (usually harmless): $@");
+                return;
+            } elsif (ref $@ eq "CPAN::Exception::yaml_process_error") {
+                $CPAN::Frontend->mydie($@);
+            }
+        } else {
+            $CPAN::Frontend->mydie($@);
+        }
+    }
+    return $stats->[0];
+}
+
+#-> sub CPAN::FTP::_mytime
+sub _mytime () {
+    if (CPAN->has_inst("Time::HiRes")) {
+        return Time::HiRes::time();
+    } else {
+        return time;
+    }
+}
+
+#-> sub CPAN::FTP::_new_stats
+sub _new_stats {
+    my($self,$file) = @_;
+    my $ret = {
+               file => $file,
+               attempts => [],
+               start => _mytime,
+              };
+    $ret;
+}
+
+#-> sub CPAN::FTP::_add_to_statistics
+sub _add_to_statistics {
+    my($self,$stats) = @_;
+    my $yaml_module = CPAN::_yaml_module;
+    $self->debug("yaml_module[$yaml_module]") if $CPAN::DEBUG;
+    if ($CPAN::META->has_inst($yaml_module)) {
+        $stats->{thesiteurl} = $ThesiteURL;
+        if (CPAN->has_inst("Time::HiRes")) {
+            $stats->{end} = Time::HiRes::time();
+        } else {
+            $stats->{end} = time;
+        }
+        my $fh = FileHandle->new;
+        my $time = time;
+        my $sdebug = 0;
+        my @debug;
+        @debug = $time if $sdebug;
+        my $fullstats = $self->_ftp_statistics($fh);
+        close $fh;
+        $fullstats->{history} ||= [];
+        push @debug, scalar @{$fullstats->{history}} if $sdebug;
+        push @debug, time if $sdebug;
+        push @{$fullstats->{history}}, $stats;
+        # arbitrary hardcoded constants until somebody demands to have
+        # them settable; YAML.pm 0.62 is unacceptably slow with 999;
+        # YAML::Syck 0.82 has no noticable performance problem with 999;
+        while (
+               @{$fullstats->{history}} > 99
+               || $time - $fullstats->{history}[0]{start} > 14*86400
+              ) {
+            shift @{$fullstats->{history}}
+        }
+        push @debug, scalar @{$fullstats->{history}} if $sdebug;
+        push @debug, time if $sdebug;
+        push @debug, scalar localtime($fullstats->{history}[0]{start}) if $sdebug;
+        # need no eval because if this fails, it is serious
+        my $sfile = File::Spec->catfile($CPAN::Config->{cpan_home},"FTPstats.yml");
+        CPAN->_yaml_dumpfile("$sfile.$$",$fullstats);
+        if ( $sdebug ) {
+            local $CPAN::DEBUG = 512; # FTP
+            push @debug, time;
+            CPAN->debug(sprintf("DEBUG history: before_read[%d]before[%d]at[%d]".
+                                "after[%d]at[%d]oldest[%s]dumped backat[%d]",
+                                @debug,
+                               ));
+        }
+        # Win32 cannot rename a file to an existing filename
+        unlink($sfile) if ($^O eq 'MSWin32');
+        rename "$sfile.$$", $sfile
+            or $CPAN::Frontend->mydie("Could not rename '$sfile.$$' to '$sfile': $!\n");
+    }
+}
+
+# if file is CHECKSUMS, suggest the place where we got the file to be
+# checked from, maybe only for young files?
+#-> sub CPAN::FTP::_recommend_url_for
+sub _recommend_url_for {
+    my($self, $file) = @_;
+    my $urllist = $self->_get_urllist;
+    if ($file =~ s|/CHECKSUMS(.gz)?$||) {
+        my $fullstats = $self->_ftp_statistics();
+        my $history = $fullstats->{history} || [];
+        while (my $last = pop @$history) {
+            last if $last->{end} - time > 3600; # only young results are interesting
+            next unless $last->{file}; # dirname of nothing dies!
+            next unless $file eq File::Basename::dirname($last->{file});
+            return $last->{thesiteurl};
+        }
+    }
+    if ($CPAN::Config->{randomize_urllist}
+        &&
+        rand(1) < $CPAN::Config->{randomize_urllist}
+       ) {
+        $urllist->[int rand scalar @$urllist];
+    } else {
+        return ();
+    }
+}
+
+#-> sub CPAN::FTP::_get_urllist
+sub _get_urllist {
+    my($self) = @_;
+    $CPAN::Config->{urllist} ||= [];
+    unless (ref $CPAN::Config->{urllist} eq 'ARRAY') {
+        $CPAN::Frontend->mywarn("Malformed urllist; ignoring.  Configuration file corrupt?\n");
+        $CPAN::Config->{urllist} = [];
+    }
+    my @urllist = grep { defined $_ and length $_ } @{$CPAN::Config->{urllist}};
+    for my $u (@urllist) {
+        CPAN->debug("u[$u]") if $CPAN::DEBUG;
+        if (UNIVERSAL::can($u,"text")) {
+            $u->{TEXT} .= "/" unless substr($u->{TEXT},-1) eq "/";
+        } else {
+            $u .= "/" unless substr($u,-1) eq "/";
+            $u = CPAN::URL->new(TEXT => $u, FROM => "USER");
+        }
+    }
+    \@urllist;
+}
+
 #-> sub CPAN::FTP::ftp_get ;
 sub ftp_get {
     my($class,$host,$dir,$file,$target) = @_;
@@ -2711,19 +3821,19 @@ sub ftp_get {
     return 0 unless defined $ftp;
     $ftp->debug(1) if $CPAN::DEBUG{'FTP'} & $CPAN::DEBUG;
     $class->debug(qq[Going to login("anonymous","$Config::Config{cf_email}")]);
-    unless ( $ftp->login("anonymous",$Config::Config{'cf_email'}) ){
+    unless ( $ftp->login("anonymous",$Config::Config{'cf_email'}) ) {
         my $msg = $ftp->message;
         $CPAN::Frontend->mywarn("  Couldn't login on $host: $msg");
         return;
     }
-    unless ( $ftp->cwd($dir) ){
+    unless ( $ftp->cwd($dir) ) {
         my $msg = $ftp->message;
         $CPAN::Frontend->mywarn("  Couldn't cwd $dir: $msg");
         return;
     }
     $ftp->binary;
     $class->debug(qq[Going to ->get("$file","$target")\n]) if $CPAN::DEBUG;
-    unless ( $ftp->get($file,$target) ){
+    unless ( $ftp->get($file,$target) ) {
         my $msg = $ftp->message;
         $CPAN::Frontend->mywarn("  Couldn't fetch $file from $host: $msg");
         return;
@@ -2765,9 +3875,9 @@ sub localize {
     my($self,$file,$aslocal,$force) = @_;
     $force ||= 0;
     Carp::croak "Usage: ->localize(cpan_file,as_local_file[,$force])"
-       unless defined $aslocal;
+        unless defined $aslocal;
     $self->debug("file[$file] aslocal[$aslocal] force[$force]")
-       if $CPAN::DEBUG;
+        if $CPAN::DEBUG;
 
     if ($^O eq 'MacOS') {
         # Comment by AK on 2000-09-03: Uniq short filenames would be
@@ -2793,7 +3903,7 @@ sub localize {
         }
     }
 
-    if (-f $aslocal && -r _ && !($force & 1)){
+    if (-f $aslocal && -r _ && !($force & 1)) {
         my $size;
         if ($size = -s $aslocal) {
             $self->debug("aslocal[$aslocal]size[$size]") if $CPAN::DEBUG;
@@ -2805,24 +3915,19 @@ sub localize {
                                        "could not remove.");
         }
     }
-    my($restore) = 0;
-    if (-f $aslocal){
-       rename $aslocal, "$aslocal.bak";
-       $restore++;
+    my($maybe_restore) = 0;
+    if (-f $aslocal) {
+        rename $aslocal, "$aslocal.bak$$";
+        $maybe_restore++;
     }
 
     my($aslocal_dir) = File::Basename::dirname($aslocal);
-    File::Path::mkpath($aslocal_dir);
-    $CPAN::Frontend->mywarn(qq{Warning: You are not allowed to write into }.
-       qq{directory "$aslocal_dir".
-    I\'ll continue, but if you encounter problems, they may be due
-    to insufficient permissions.\n}) unless -w $aslocal_dir;
-
+    $self->mymkpath($aslocal_dir); # too early for file URLs / RT #28438
     # Inheritance is not easier to manage than a few if/else branches
     if ($CPAN::META->has_usable('LWP::UserAgent')) {
-       unless ($Ua) {
+        unless ($Ua) {
             CPAN::LWP::UserAgent->config;
-           eval {$Ua = CPAN::LWP::UserAgent->new;}; # Why is has_usable still not fit enough?
+            eval {$Ua = CPAN::LWP::UserAgent->new;}; # Why is has_usable still not fit enough?
             if ($@) {
                 $CPAN::Frontend->mywarn("CPAN::LWP::UserAgent->new dies with $@\n")
                     if $CPAN::DEBUG;
@@ -2832,24 +3937,10 @@ sub localize {
                     if $var = $CPAN::Config->{ftp_proxy} || $ENV{ftp_proxy};
                 $Ua->proxy('http', $var)
                     if $var = $CPAN::Config->{http_proxy} || $ENV{http_proxy};
-
-
-# >>>>> On Wed, 13 Dec 2000 09:21:34 -0500, "Robison, Jonathon (J.M.)" <jrobiso2@visteon.com> said:
-# 
-#  > I note that although CPAN.pm can use proxies, it doesn't seem equipped to
-#  > use ones that require basic autorization.
-#  
-#  > Example of when I use it manually in my own stuff:
-#  
-#  > $ua->proxy(['http','ftp'], http://my.proxy.server:83');
-#  > $req->proxy_authorization_basic("username","password");
-#  > $res = $ua->request($req);
-# 
-
                 $Ua->no_proxy($var)
                     if $var = $CPAN::Config->{no_proxy} || $ENV{no_proxy};
             }
-       }
+        }
     }
     for my $prx (qw(ftp_proxy http_proxy no_proxy)) {
         $ENV{$prx} = $CPAN::Config->{$prx} if $CPAN::Config->{$prx};
@@ -2858,71 +3949,121 @@ sub localize {
     # Try the list of urls for each single object. We keep a record
     # where we did get a file from
     my(@reordered,$last);
-    $CPAN::Config->{urllist} ||= [];
-    unless (ref $CPAN::Config->{urllist} eq 'ARRAY') {
-        $CPAN::Frontend->mywarn("Malformed urllist; ignoring.  Configuration file corrupt?\n");
-        $CPAN::Config->{urllist} = [];
-    }
-    $last = $#{$CPAN::Config->{urllist}};
+    my $ccurllist = $self->_get_urllist;
+    $last = $#$ccurllist;
     if ($force & 2) { # local cpans probably out of date, don't reorder
-       @reordered = (0..$last);
+        @reordered = (0..$last);
     } else {
-       @reordered =
-           sort {
-               (substr($CPAN::Config->{urllist}[$b],0,4) eq "file")
-                   <=>
-               (substr($CPAN::Config->{urllist}[$a],0,4) eq "file")
-                   or
-               defined($ThesiteURL)
-                   and
-                ($CPAN::Config->{urllist}[$b] eq $ThesiteURL)
-                   <=>
-                ($CPAN::Config->{urllist}[$a] eq $ThesiteURL)
-           } 0..$last;
+        @reordered =
+            sort {
+                (substr($ccurllist->[$b],0,4) eq "file")
+                    <=>
+                (substr($ccurllist->[$a],0,4) eq "file")
+                    or
+                defined($ThesiteURL)
+                    and
+                ($ccurllist->[$b] eq $ThesiteURL)
+                    <=>
+                ($ccurllist->[$a] eq $ThesiteURL)
+            } 0..$last;
     }
     my(@levels);
     $Themethod ||= "";
-    $self->debug("Themethod[$Themethod]") if $CPAN::DEBUG;
+    $self->debug("Themethod[$Themethod]reordered[@reordered]") if $CPAN::DEBUG;
+    my @all_levels = (
+                      ["dleasy",   "file"],
+                      ["dleasy"],
+                      ["dlhard"],
+                      ["dlhardest"],
+                      ["dleasy",   "http","defaultsites"],
+                      ["dlhard",   "http","defaultsites"],
+                      ["dleasy",   "ftp", "defaultsites"],
+                      ["dlhard",   "ftp", "defaultsites"],
+                      ["dlhardest","",    "defaultsites"],
+                     );
     if ($Themethod) {
-       @levels = ($Themethod, grep {$_ ne $Themethod} qw/easy hard hardest/);
+        @levels = grep {$_->[0] eq $Themethod} @all_levels;
+        push @levels, grep {$_->[0] ne $Themethod} @all_levels;
     } else {
-       @levels = qw/easy hard hardest/;
+        @levels = @all_levels;
     }
-    @levels = qw/easy/ if $^O eq 'MacOS';
+    @levels = qw/dleasy/ if $^O eq 'MacOS';
     my($levelno);
-    local $ENV{FTP_PASSIVE} = 
+    local $ENV{FTP_PASSIVE} =
         exists $CPAN::Config->{ftp_passive} ?
         $CPAN::Config->{ftp_passive} : 1;
-    for $levelno (0..$#levels) {
-        my $level = $levels[$levelno];
-       my $method = "host$level";
-       my @host_seq = $level eq "easy" ?
-           @reordered : 0..$last;  # reordered has CDROM up front
-        my @urllist = map { $CPAN::Config->{urllist}[$_] } @host_seq;
-        for my $u (@urllist) {
-            if ($u->can("text")) {
-                $u->{TEXT} .= "/" unless substr($u->{TEXT},-1) eq "/";
+    my $ret;
+    my $stats = $self->_new_stats($file);
+  LEVEL: for $levelno (0..$#levels) {
+        my $level_tuple = $levels[$levelno];
+        my($level,$scheme,$sitetag) = @$level_tuple;
+        my $defaultsites = $sitetag && $sitetag eq "defaultsites";
+        my @urllist;
+        if ($defaultsites) {
+            unless (defined $connect_to_internet_ok) {
+                $CPAN::Frontend->myprint(sprintf qq{
+I would like to connect to one of the following sites to get '%s':
+
+%s
+},
+                                         $file,
+                                         join("",map { " ".$_->text."\n" } @CPAN::Defaultsites),
+                                        );
+                my $answer = CPAN::Shell::colorable_makemaker_prompt("Is it OK to try to connect to the Internet?", "yes");
+                if ($answer =~ /^y/i) {
+                    $connect_to_internet_ok = 1;
+                } else {
+                    $connect_to_internet_ok = 0;
+                }
+            }
+            if ($connect_to_internet_ok) {
+                @urllist = @CPAN::Defaultsites;
             } else {
-                $u .= "/" unless substr($u,-1) eq "/";
-                $u = CPAN::URL->new(TEXT => $u, FROM => "USER");
+                @urllist = ();
             }
+        } else {
+            my @host_seq = $level =~ /dleasy/ ?
+                @reordered : 0..$last;  # reordered has file and $Thesiteurl first
+            @urllist = map { $ccurllist->[$_] } @host_seq;
         }
-        for my $u (@CPAN::Defaultsites) {
-            push @urllist, $u unless grep { $_ eq $u } @urllist;
+        $self->debug("synth. urllist[@urllist]") if $CPAN::DEBUG;
+        my $aslocal_tempfile = $aslocal . ".tmp" . $$;
+        if (my $recommend = $self->_recommend_url_for($file)) {
+            @urllist = grep { $_ ne $recommend } @urllist;
+            unshift @urllist, $recommend;
         }
         $self->debug("synth. urllist[@urllist]") if $CPAN::DEBUG;
-       my $ret = $self->$method(\@urllist,$file,$aslocal);
-       if ($ret) {
-         $Themethod = $level;
-         my $now = time;
-         # utime $now, $now, $aslocal; # too bad, if we do that, we
-                                      # might alter a local mirror
-         $self->debug("level[$level]") if $CPAN::DEBUG;
-         return $ret;
-       } else {
-         unlink $aslocal;
-          last if $CPAN::Signal; # need to cleanup
-       }
+        $ret = $self->hostdlxxx($level,$scheme,\@urllist,$file,$aslocal_tempfile,$stats);
+        if ($ret) {
+            CPAN->debug("ret[$ret]aslocal[$aslocal]") if $CPAN::DEBUG;
+            if ($ret eq $aslocal_tempfile) {
+                # if we got it exactly as we asked for, only then we
+                # want to rename
+                rename $aslocal_tempfile, $aslocal
+                    or $CPAN::Frontend->mydie("Error while trying to rename ".
+                                              "'$ret' to '$aslocal': $!");
+                $ret = $aslocal;
+            }
+            $Themethod = $level;
+            my $now = time;
+            # utime $now, $now, $aslocal; # too bad, if we do that, we
+                                          # might alter a local mirror
+            $self->debug("level[$level]") if $CPAN::DEBUG;
+            last LEVEL;
+        } else {
+            unlink $aslocal_tempfile;
+            last if $CPAN::Signal; # need to cleanup
+        }
+    }
+    if ($ret) {
+        $stats->{filesize} = -s $ret;
+    }
+    $self->debug("before _add_to_statistics") if $CPAN::DEBUG;
+    $self->_add_to_statistics($stats);
+    $self->debug("after _add_to_statistics") if $CPAN::DEBUG;
+    if ($ret) {
+        unlink "$aslocal.bak$$";
+        return $ret;
     }
     unless ($CPAN::Signal) {
         my(@mess);
@@ -2941,45 +4082,74 @@ sub localize {
         $CPAN::Frontend->mywarn("Could not fetch $file\n");
         $CPAN::Frontend->mysleep(2);
     }
-    if ($restore) {
-       rename "$aslocal.bak", $aslocal;
-       $CPAN::Frontend->myprint("Trying to get away with old file:\n" .
-                                $self->ls($aslocal));
-       return $aslocal;
+    if ($maybe_restore) {
+        rename "$aslocal.bak$$", $aslocal;
+        $CPAN::Frontend->myprint("Trying to get away with old file:\n" .
+                                 $self->ls($aslocal));
+        return $aslocal;
     }
     return;
 }
 
+sub mymkpath {
+    my($self, $aslocal_dir) = @_;
+    File::Path::mkpath($aslocal_dir);
+    $CPAN::Frontend->mywarn(qq{Warning: You are not allowed to write into }.
+                            qq{directory "$aslocal_dir".
+    I\'ll continue, but if you encounter problems, they may be due
+    to insufficient permissions.\n}) unless -w $aslocal_dir;
+}
+
+sub hostdlxxx {
+    my $self = shift;
+    my $level = shift;
+    my $scheme = shift;
+    my $h = shift;
+    $h = [ grep /^\Q$scheme\E:/, @$h ] if $scheme;
+    my $method = "host$level";
+    $self->$method($h, @_);
+}
+
+sub _set_attempt {
+    my($self,$stats,$method,$url) = @_;
+    push @{$stats->{attempts}}, {
+                                 method => $method,
+                                 start => _mytime,
+                                 url => $url,
+                                };
+}
+
 # package CPAN::FTP;
-sub hosteasy {
-    my($self,$host_seq,$file,$aslocal) = @_;
+sub hostdleasy {
+    my($self,$host_seq,$file,$aslocal,$stats) = @_;
     my($ro_url);
   HOSTEASY: for $ro_url (@$host_seq) {
-       my $url .= "$ro_url$file";
-       $self->debug("localizing perlish[$url]") if $CPAN::DEBUG;
-       if ($url =~ /^file:/) {
-           my $l;
-           if ($CPAN::META->has_inst('URI::URL')) {
-               my $u =  URI::URL->new($url);
-               $l = $u->path;
-           } else { # works only on Unix, is poorly constructed, but
-               # hopefully better than nothing.
-               # RFC 1738 says fileurl BNF is
-               # fileurl = "file://" [ host | "localhost" ] "/" fpath
-               # Thanks to "Mark D. Baushke" <mdb@cisco.com> for
-               # the code
-               ($l = $url) =~ s|^file://[^/]*/|/|; # discard the host part
-               $l =~ s|^file:||;                   # assume they
+        $self->_set_attempt($stats,"dleasy",$ro_url);
+        my $url .= "$ro_url$file";
+        $self->debug("localizing perlish[$url]") if $CPAN::DEBUG;
+        if ($url =~ /^file:/) {
+            my $l;
+            if ($CPAN::META->has_inst('URI::URL')) {
+                my $u =  URI::URL->new($url);
+                $l = $u->path;
+            } else { # works only on Unix, is poorly constructed, but
+                # hopefully better than nothing.
+                # RFC 1738 says fileurl BNF is
+                # fileurl = "file://" [ host | "localhost" ] "/" fpath
+                # Thanks to "Mark D. Baushke" <mdb@cisco.com> for
+                # the code
+                ($l = $url) =~ s|^file://[^/]*/|/|; # discard the host part
+                $l =~ s|^file:||;                   # assume they
                                                     # meant
                                                     # file://localhost
-               $l =~ s|^/||s
+                $l =~ s|^/||s
                     if ! -f $l && $l =~ m|^/\w:|;   # e.g. /P:
-           }
+            }
             $self->debug("local file[$l]") if $CPAN::DEBUG;
-           if ( -f $l && -r _) {
-               $ThesiteURL = $ro_url;
-               return $l;
-           }
+            if ( -f $l && -r _) {
+                $ThesiteURL = $ro_url;
+                return $l;
+            }
             if ($l =~ /(.+)\.gz$/) {
                 my $ungz = $1;
                 if ( -f $ungz && -r _) {
@@ -2987,16 +4157,18 @@ sub hosteasy {
                     return $ungz;
                 }
             }
-           # Maybe mirror has compressed it?
-           if (-f "$l.gz") {
-               $self->debug("found compressed $l.gz") if $CPAN::DEBUG;
-               CPAN::Tarzip->new("$l.gz")->gunzip($aslocal);
-               if ( -f $aslocal) {
-                   $ThesiteURL = $ro_url;
-                   return $aslocal;
-               }
-           }
-       }
+            # Maybe mirror has compressed it?
+            if (-f "$l.gz") {
+                $self->debug("found compressed $l.gz") if $CPAN::DEBUG;
+                eval { CPAN::Tarzip->new("$l.gz")->gunzip($aslocal) };
+                if ( -f $aslocal) {
+                    $ThesiteURL = $ro_url;
+                    return $aslocal;
+                }
+            }
+            $CPAN::Frontend->mywarn("Could not find '$l'\n");
+        }
+        $self->debug("it was not a file URL") if $CPAN::DEBUG;
         if ($CPAN::META->has_usable('LWP')) {
             $CPAN::Frontend->myprint("Fetching with LWP:
   $url
@@ -3022,11 +4194,11 @@ sub hosteasy {
   $gzurl
 ");
                 $res = $Ua->mirror($gzurl, "$aslocal.gz");
-                if ($res->is_success &&
-                    CPAN::Tarzip->new("$aslocal.gz")->gunzip($aslocal)
-                   ) {
-                    $ThesiteURL = $ro_url;
-                    return $aslocal;
+                if ($res->is_success) {
+                    if (eval {CPAN::Tarzip->new("$aslocal.gz")->gunzip($aslocal)}) {
+                        $ThesiteURL = $ro_url;
+                        return $aslocal;
+                    }
                 }
             } else {
                 $CPAN::Frontend->myprint(sprintf(
@@ -3038,204 +4210,215 @@ sub hosteasy {
                 # Net::FTP can still succeed where LWP fails. So we do not
                 # skip Net::FTP anymore when LWP is available.
             }
-       } elsif (
-                 $ro_url->can("text")
-                 and
-                 $ro_url->{FROM} eq "USER"
-                ){
-            my $ret = $self->hosthard([$ro_url],$file,$aslocal);
-            return $ret if $ret;
         } else {
             $CPAN::Frontend->mywarn("  LWP not available\n");
-       }
+        }
         return if $CPAN::Signal;
-       if ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
-           # that's the nice and easy way thanks to Graham
-           my($host,$dir,$getfile) = ($1,$2,$3);
-           if ($CPAN::META->has_usable('Net::FTP')) {
-               $dir =~ s|/+|/|g;
-               $CPAN::Frontend->myprint("Fetching with Net::FTP:
+        if ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
+            # that's the nice and easy way thanks to Graham
+            $self->debug("recognized ftp") if $CPAN::DEBUG;
+            my($host,$dir,$getfile) = ($1,$2,$3);
+            if ($CPAN::META->has_usable('Net::FTP')) {
+                $dir =~ s|/+|/|g;
+                $CPAN::Frontend->myprint("Fetching with Net::FTP:
   $url
 ");
-               $self->debug("getfile[$getfile]dir[$dir]host[$host]" .
-                            "aslocal[$aslocal]") if $CPAN::DEBUG;
-               if (CPAN::FTP->ftp_get($host,$dir,$getfile,$aslocal)) {
-                   $ThesiteURL = $ro_url;
-                   return $aslocal;
-               }
-               if ($aslocal !~ /\.gz(?!\n)\Z/) {
-                   my $gz = "$aslocal.gz";
-                   $CPAN::Frontend->myprint("Fetching with Net::FTP
+                $self->debug("getfile[$getfile]dir[$dir]host[$host]" .
+                             "aslocal[$aslocal]") if $CPAN::DEBUG;
+                if (CPAN::FTP->ftp_get($host,$dir,$getfile,$aslocal)) {
+                    $ThesiteURL = $ro_url;
+                    return $aslocal;
+                }
+                if ($aslocal !~ /\.gz(?!\n)\Z/) {
+                    my $gz = "$aslocal.gz";
+                    $CPAN::Frontend->myprint("Fetching with Net::FTP
   $url.gz
 ");
                     if (CPAN::FTP->ftp_get($host,
                                            $dir,
                                            "$getfile.gz",
                                            $gz) &&
-                       CPAN::Tarzip->new($gz)->gunzip($aslocal)
-                      ){
-                       $ThesiteURL = $ro_url;
-                       return $aslocal;
-                   }
-               }
-               # next HOSTEASY;
-           }
-       }
+                        eval{CPAN::Tarzip->new($gz)->gunzip($aslocal)}
+                    ) {
+                        $ThesiteURL = $ro_url;
+                        return $aslocal;
+                    }
+                }
+                # next HOSTEASY;
+            } else {
+                CPAN->debug("Net::FTP does not count as usable atm") if $CPAN::DEBUG;
+            }
+        }
+        if (
+            UNIVERSAL::can($ro_url,"text")
+            and
+            $ro_url->{FROM} eq "USER"
+           ) {
+            ##address #17973: default URLs should not try to override
+            ##user-defined URLs just because LWP is not available
+            my $ret = $self->hostdlhard([$ro_url],$file,$aslocal,$stats);
+            return $ret if $ret;
+        }
         return if $CPAN::Signal;
     }
 }
 
 # package CPAN::FTP;
-sub hosthard {
-  my($self,$host_seq,$file,$aslocal) = @_;
-
-  # Came back if Net::FTP couldn't establish connection (or
-  # failed otherwise) Maybe they are behind a firewall, but they
-  # gave us a socksified (or other) ftp program...
-
-  my($ro_url);
-  my($devnull) = $CPAN::Config->{devnull} || "";
-  # < /dev/null ";
-  my($aslocal_dir) = File::Basename::dirname($aslocal);
-  File::Path::mkpath($aslocal_dir);
-  HOSTHARD: for $ro_url (@$host_seq) {
-       my $url = "$ro_url$file";
-       my($proto,$host,$dir,$getfile);
-
-       # Courtesy Mark Conty mark_conty@cargill.com change from
-       # if ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
-       # to
-       if ($url =~ m|^([^:]+)://(.*?)/(.*)/(.*)|) {
-         # proto not yet used
-         ($proto,$host,$dir,$getfile) = ($1,$2,$3,$4);
-       } else {
-         next HOSTHARD; # who said, we could ftp anything except ftp?
-       }
-        next HOSTHARD if $proto eq "file"; # file URLs would have had
-                                           # success above. Likely a bogus URL
+sub hostdlhard {
+    my($self,$host_seq,$file,$aslocal,$stats) = @_;
 
-       $self->debug("localizing funkyftpwise[$url]") if $CPAN::DEBUG;
+    # Came back if Net::FTP couldn't establish connection (or
+    # failed otherwise) Maybe they are behind a firewall, but they
+    # gave us a socksified (or other) ftp program...
 
-        # Try the most capable first and leave ncftp* for last as it only 
+    my($ro_url);
+    my($devnull) = $CPAN::Config->{devnull} || "";
+    # < /dev/null ";
+    my($aslocal_dir) = File::Basename::dirname($aslocal);
+    File::Path::mkpath($aslocal_dir);
+  HOSTHARD: for $ro_url (@$host_seq) {
+        $self->_set_attempt($stats,"dlhard",$ro_url);
+        my $url = "$ro_url$file";
+        my($proto,$host,$dir,$getfile);
+
+        # Courtesy Mark Conty mark_conty@cargill.com change from
+        # if ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
+        # to
+        if ($url =~ m|^([^:]+)://(.*?)/(.*)/(.*)|) {
+            # proto not yet used
+            ($proto,$host,$dir,$getfile) = ($1,$2,$3,$4);
+        } else {
+            next HOSTHARD; # who said, we could ftp anything except ftp?
+        }
+        next HOSTHARD if $proto eq "file"; # file URLs would have had
+                                           # success above. Likely a bogus URL
+
+        $self->debug("localizing funkyftpwise[$url]") if $CPAN::DEBUG;
+
+        # Try the most capable first and leave ncftp* for last as it only
         # does FTP.
       DLPRG: for my $f (qw(curl wget lynx ncftpget ncftp)) {
-          my $funkyftp = CPAN::HandleConfig->safe_quote($CPAN::Config->{$f});
-          next unless defined $funkyftp;
-         next if $funkyftp =~ /^\s*$/;
-
-         my($asl_ungz, $asl_gz);
-         ($asl_ungz = $aslocal) =~ s/\.gz//;
-          $asl_gz = "$asl_ungz.gz";
-
-         my($src_switch) = "";
-         my($chdir) = "";
-         my($stdout_redir) = " > $asl_ungz";
-         if ($f eq "lynx"){
-           $src_switch = " -source";
-         } elsif ($f eq "ncftp"){
-           $src_switch = " -c";
-         } elsif ($f eq "wget"){
-           $src_switch = " -O $asl_ungz";
-           $stdout_redir = "";
-         } elsif ($f eq 'curl'){
-           $src_switch = ' -L -f -s -S --netrc-optional';
-         }
-
-         if ($f eq "ncftpget"){
-           $chdir = "cd $aslocal_dir && ";
-           $stdout_redir = "";
-         }
-         $CPAN::Frontend->myprint(
-                                  qq[
+            my $funkyftp = CPAN::HandleConfig->safe_quote($CPAN::Config->{$f});
+            next unless defined $funkyftp;
+            next if $funkyftp =~ /^\s*$/;
+
+            my($asl_ungz, $asl_gz);
+            ($asl_ungz = $aslocal) =~ s/\.gz//;
+                $asl_gz = "$asl_ungz.gz";
+
+            my($src_switch) = "";
+            my($chdir) = "";
+            my($stdout_redir) = " > $asl_ungz";
+            if ($f eq "lynx") {
+                $src_switch = " -source";
+            } elsif ($f eq "ncftp") {
+                $src_switch = " -c";
+            } elsif ($f eq "wget") {
+                $src_switch = " -O $asl_ungz";
+                $stdout_redir = "";
+            } elsif ($f eq 'curl') {
+                $src_switch = ' -L -f -s -S --netrc-optional';
+            }
+
+            if ($f eq "ncftpget") {
+                $chdir = "cd $aslocal_dir && ";
+                $stdout_redir = "";
+            }
+            $CPAN::Frontend->myprint(
+                                     qq[
 Trying with "$funkyftp$src_switch" to get
     $url
 ]);
-         my($system) =
-             "$chdir$funkyftp$src_switch \"$url\" $devnull$stdout_redir";
-         $self->debug("system[$system]") if $CPAN::DEBUG;
-         my($wstatus) = system($system);
-          if ($f eq "lynx") {
-              # lynx returns 0 when it fails somewhere
-              if (-s $asl_ungz) {
-                  my $content = do { local *FH; open FH, $asl_ungz or die; local $/; <FH> };
-                  if ($content =~ /^<.*<title>[45]/si) {
-                      $CPAN::Frontend->mywarn(qq{
-No success, the file that lynx has has downloaded looks like an error message:
+            my($system) =
+                "$chdir$funkyftp$src_switch \"$url\" $devnull$stdout_redir";
+            $self->debug("system[$system]") if $CPAN::DEBUG;
+            my($wstatus) = system($system);
+            if ($f eq "lynx") {
+                # lynx returns 0 when it fails somewhere
+                if (-s $asl_ungz) {
+                    my $content = do { local *FH;
+                                       open FH, $asl_ungz or die;
+                                       local $/;
+                                       <FH> };
+                    if ($content =~ /^<.*(<title>[45]|Error [45])/si) {
+                        $CPAN::Frontend->mywarn(qq{
+No success, the file that lynx has downloaded looks like an error message:
 $content
 });
-                      $CPAN::Frontend->mysleep(1);
-                      next DLPRG;
-                  }
-              } else {
-                  $CPAN::Frontend->myprint(qq{
-No success, the file that lynx has has downloaded is an empty file.
-});
-                  next DLPRG;
-              }
-          }
-         if ($wstatus == 0) {
-           if (-s $aslocal) {
-             # Looks good
-           } elsif ($asl_ungz ne $aslocal) {
-             # test gzip integrity
-             if (CPAN::Tarzip->new($asl_ungz)->gtest) {
-                  # e.g. foo.tar is gzipped --> foo.tar.gz
-                  rename $asl_ungz, $aslocal;
-             } else {
-                  CPAN::Tarzip->new($asl_gz)->gzip($asl_ungz);
-             }
-           }
-           $ThesiteURL = $ro_url;
-           return $aslocal;
-         } elsif ($url !~ /\.gz(?!\n)\Z/) {
-           unlink $asl_ungz if
-               -f $asl_ungz && -s _ == 0;
-           my $gz = "$aslocal.gz";
-           my $gzurl = "$url.gz";
-           $CPAN::Frontend->myprint(
-                                    qq[
-Trying with "$funkyftp$src_switch" to get
-  $url.gz
-]);
-           my($system) = "$funkyftp$src_switch \"$url.gz\" $devnull > $asl_gz";
-           $self->debug("system[$system]") if $CPAN::DEBUG;
-           my($wstatus);
-           if (($wstatus = system($system)) == 0
-               &&
-               -s $asl_gz
-              ) {
-             # test gzip integrity
-              my $ct = CPAN::Tarzip->new($asl_gz);
-             if ($ct->gtest) {
-                  $ct->gunzip($aslocal);
-             } else {
-                  # somebody uncompressed file for us?
-                  rename $asl_ungz, $aslocal;
-             }
-             $ThesiteURL = $ro_url;
-             return $aslocal;
-           } else {
-             unlink $asl_gz if -f $asl_gz;
-           }
-         } else {
-           my $estatus = $wstatus >> 8;
-           my $size = -f $aslocal ?
-               ", left\n$aslocal with size ".-s _ :
-                   "\nWarning: expected file [$aslocal] doesn't exist";
-           $CPAN::Frontend->myprint(qq{
-System call "$system"
-returned status $estatus (wstat $wstatus)$size
+                        $CPAN::Frontend->mysleep(1);
+                        next DLPRG;
+                    }
+                } else {
+                    $CPAN::Frontend->myprint(qq{
+No success, the file that lynx has downloaded is an empty file.
 });
-         }
-          return if $CPAN::Signal;
-       } # transfer programs
+                    next DLPRG;
+                }
+            }
+            if ($wstatus == 0) {
+                if (-s $aslocal) {
+                    # Looks good
+                } elsif ($asl_ungz ne $aslocal) {
+                    # test gzip integrity
+                    if (eval{CPAN::Tarzip->new($asl_ungz)->gtest}) {
+                        # e.g. foo.tar is gzipped --> foo.tar.gz
+                        rename $asl_ungz, $aslocal;
+                    } else {
+                        eval{CPAN::Tarzip->new($asl_gz)->gzip($asl_ungz)};
+                    }
+                }
+                $ThesiteURL = $ro_url;
+                return $aslocal;
+            } elsif ($url !~ /\.gz(?!\n)\Z/) {
+                unlink $asl_ungz if
+                    -f $asl_ungz && -s _ == 0;
+                my $gz = "$aslocal.gz";
+                my $gzurl = "$url.gz";
+                $CPAN::Frontend->myprint(
+                                        qq[
+    Trying with "$funkyftp$src_switch" to get
+    $url.gz
+    ]);
+                my($system) = "$funkyftp$src_switch \"$url.gz\" $devnull > $asl_gz";
+                $self->debug("system[$system]") if $CPAN::DEBUG;
+                my($wstatus);
+                if (($wstatus = system($system)) == 0
+                    &&
+                    -s $asl_gz
+                ) {
+                    # test gzip integrity
+                    my $ct = eval{CPAN::Tarzip->new($asl_gz)};
+                    if ($ct && $ct->gtest) {
+                        $ct->gunzip($aslocal);
+                    } else {
+                        # somebody uncompressed file for us?
+                        rename $asl_ungz, $aslocal;
+                    }
+                    $ThesiteURL = $ro_url;
+                    return $aslocal;
+                } else {
+                    unlink $asl_gz if -f $asl_gz;
+                }
+            } else {
+                my $estatus = $wstatus >> 8;
+                my $size = -f $aslocal ?
+                    ", left\n$aslocal with size ".-s _ :
+                    "\nWarning: expected file [$aslocal] doesn't exist";
+                $CPAN::Frontend->myprint(qq{
+    System call "$system"
+    returned status $estatus (wstat $wstatus)$size
+    });
+            }
+            return if $CPAN::Signal;
+        } # transfer programs
     } # host
 }
 
 # package CPAN::FTP;
-sub hosthardest {
-    my($self,$host_seq,$file,$aslocal) = @_;
+sub hostdlhardest {
+    my($self,$host_seq,$file,$aslocal,$stats) = @_;
 
+    return unless @$host_seq;
     my($ro_url);
     my($aslocal_dir) = File::Basename::dirname($aslocal);
     File::Path::mkpath($aslocal_dir);
@@ -3259,37 +4442,38 @@ config variable with
 });
     $CPAN::Frontend->mysleep(2);
   HOSTHARDEST: for $ro_url (@$host_seq) {
-       my $url = "$ro_url$file";
-       $self->debug("localizing ftpwise[$url]") if $CPAN::DEBUG;
-       unless ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
-           next;
-       }
-       my($host,$dir,$getfile) = ($1,$2,$3);
-       my $timestamp = 0;
-       my($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,
-          $ctime,$blksize,$blocks) = stat($aslocal);
-       $timestamp = $mtime ||= 0;
-       my($netrc) = CPAN::FTP::netrc->new;
-       my($netrcfile) = $netrc->netrc;
-       my($verbose) = $CPAN::DEBUG{'FTP'} & $CPAN::DEBUG ? " -v" : "";
-       my $targetfile = File::Basename::basename($aslocal);
-       my(@dialog);
-       push(
-            @dialog,
-            "lcd $aslocal_dir",
-            "cd /",
-            map("cd $_", split /\//, $dir), # RFC 1738
-            "bin",
-            "get $getfile $targetfile",
-            "quit"
-           );
-       if (! $netrcfile) {
-           CPAN->debug("No ~/.netrc file found") if $CPAN::DEBUG;
-       } elsif ($netrc->hasdefault || $netrc->contains($host)) {
-           CPAN->debug(sprintf("hasdef[%d]cont($host)[%d]",
-                               $netrc->hasdefault,
-                               $netrc->contains($host))) if $CPAN::DEBUG;
-           if ($netrc->protected) {
+        $self->_set_attempt($stats,"dlhardest",$ro_url);
+        my $url = "$ro_url$file";
+        $self->debug("localizing ftpwise[$url]") if $CPAN::DEBUG;
+        unless ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
+            next;
+        }
+        my($host,$dir,$getfile) = ($1,$2,$3);
+        my $timestamp = 0;
+        my($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,
+            $ctime,$blksize,$blocks) = stat($aslocal);
+        $timestamp = $mtime ||= 0;
+        my($netrc) = CPAN::FTP::netrc->new;
+        my($netrcfile) = $netrc->netrc;
+        my($verbose) = $CPAN::DEBUG{'FTP'} & $CPAN::DEBUG ? " -v" : "";
+        my $targetfile = File::Basename::basename($aslocal);
+        my(@dialog);
+        push(
+             @dialog,
+             "lcd $aslocal_dir",
+             "cd /",
+             map("cd $_", split /\//, $dir), # RFC 1738
+             "bin",
+             "get $getfile $targetfile",
+             "quit"
+        );
+        if (! $netrcfile) {
+            CPAN->debug("No ~/.netrc file found") if $CPAN::DEBUG;
+        } elsif ($netrc->hasdefault || $netrc->contains($host)) {
+            CPAN->debug(sprintf("hasdef[%d]cont($host)[%d]",
+                                $netrc->hasdefault,
+                                $netrc->contains($host))) if $CPAN::DEBUG;
+            if ($netrc->protected) {
                 my $dialog = join "", map { "    $_\n" } @dialog;
                 my $netrc_explain;
                 if ($netrc->contains($host)) {
@@ -3299,45 +4483,45 @@ config variable with
                     $netrc_explain = "Relying that your default .netrc entry ".
                         "manages the login";
                 }
-               $CPAN::Frontend->myprint(qq{
+                $CPAN::Frontend->myprint(qq{
   Trying with external ftp to get
     $url
   $netrc_explain
   Going to send the dialog
 $dialog
 }
-                    );
-               $self->talk_ftp("$ftpbin$verbose $host",
-                               @dialog);
-               ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
-                $atime,$mtime,$ctime,$blksize,$blocks) = stat($aslocal);
-               $mtime ||= 0;
-               if ($mtime > $timestamp) {
-                   $CPAN::Frontend->myprint("GOT $aslocal\n");
-                   $ThesiteURL = $ro_url;
-                   return $aslocal;
-               } else {
-                   $CPAN::Frontend->myprint("Hmm... Still failed!\n");
-               }
-                return if $CPAN::Signal;
-           } else {
-               $CPAN::Frontend->mywarn(qq{Your $netrcfile is not }.
-                                       qq{correctly protected.\n});
-           }
-       } else {
-           $CPAN::Frontend->mywarn("Your ~/.netrc neither contains $host
+                );
+                $self->talk_ftp("$ftpbin$verbose $host",
+                                @dialog);
+                ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
+                    $atime,$mtime,$ctime,$blksize,$blocks) = stat($aslocal);
+                $mtime ||= 0;
+                if ($mtime > $timestamp) {
+                    $CPAN::Frontend->myprint("GOT $aslocal\n");
+                    $ThesiteURL = $ro_url;
+                    return $aslocal;
+                } else {
+                    $CPAN::Frontend->myprint("Hmm... Still failed!\n");
+                }
+                    return if $CPAN::Signal;
+            } else {
+                $CPAN::Frontend->mywarn(qq{Your $netrcfile is not }.
+                                        qq{correctly protected.\n});
+            }
+        } else {
+            $CPAN::Frontend->mywarn("Your ~/.netrc neither contains $host
   nor does it have a default entry\n");
-       }
-
-       # OK, they don't have a valid ~/.netrc. Use 'ftp -n'
-       # then and login manually to host, using e-mail as
-       # password.
-       $CPAN::Frontend->myprint(qq{Issuing "$ftpbin$verbose -n"\n});
-       unshift(
-               @dialog,
-               "open $host",
-               "user anonymous $Config::Config{'cf_email'}"
-              );
+        }
+
+        # OK, they don't have a valid ~/.netrc. Use 'ftp -n'
+        # then and login manually to host, using e-mail as
+        # password.
+        $CPAN::Frontend->myprint(qq{Issuing "$ftpbin$verbose -n"\n});
+        unshift(
+                @dialog,
+                "open $host",
+                "user anonymous $Config::Config{'cf_email'}"
+        );
         my $dialog = join "", map { "    $_\n" } @dialog;
         $CPAN::Frontend->myprint(qq{
   Trying with external ftp to get
@@ -3345,21 +4529,21 @@ $dialog
   Going to send the dialog
 $dialog
 }
-                    );
-       $self->talk_ftp("$ftpbin$verbose -n", @dialog);
-       ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
-        $atime,$mtime,$ctime,$blksize,$blocks) = stat($aslocal);
-       $mtime ||= 0;
-       if ($mtime > $timestamp) {
-           $CPAN::Frontend->myprint("GOT $aslocal\n");
-           $ThesiteURL = $ro_url;
-           return $aslocal;
-       } else {
-           $CPAN::Frontend->myprint("Bad luck... Still failed!\n");
-       }
+        );
+        $self->talk_ftp("$ftpbin$verbose -n", @dialog);
+        ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
+            $atime,$mtime,$ctime,$blksize,$blocks) = stat($aslocal);
+        $mtime ||= 0;
+        if ($mtime > $timestamp) {
+            $CPAN::Frontend->myprint("GOT $aslocal\n");
+            $ThesiteURL = $ro_url;
+            return $aslocal;
+        } else {
+            $CPAN::Frontend->myprint("Bad luck... Still failed!\n");
+        }
         return if $CPAN::Signal;
-       $CPAN::Frontend->mywarn("Can't access URL $url.\n\n");
-       $CPAN::Frontend->mysleep(2);
+        $CPAN::Frontend->mywarn("Can't access URL $url.\n\n");
+        $CPAN::Frontend->mysleep(2);
     } # host
 }
 
@@ -3369,7 +4553,7 @@ sub talk_ftp {
     my $fh = FileHandle->new;
     $fh->open("|$command") or die "Couldn't open ftp: $!";
     foreach (@dialog) { $fh->print("$_\n") }
-    $fh->close;                # Wait for process to complete
+    $fh->close; # Wait for process to complete
     my $wstatus = $?;
     my $estatus = $wstatus >> 8;
     $CPAN::Frontend->myprint(qq{
@@ -3390,10 +4574,10 @@ sub ls {
     my $pname = $name;
 
     if ($blocks) {
-       $blocks = int(($blocks + 1) / 2);
+        $blocks = int(($blocks + 1) / 2);
     }
     else {
-       $blocks = int(($sizemm + 1023) / 1024);
+        $blocks = int(($sizemm + 1023) / 1024);
     }
 
     if    (-f _) { $perms = '-'; }
@@ -3424,24 +4608,24 @@ sub ls {
     my($timeyear);
     my($moname) = $moname[$mon];
     if (-M _ > 365.25 / 2) {
-       $timeyear = $year + 1900;
+        $timeyear = $year + 1900;
     }
     else {
-       $timeyear = sprintf("%02d:%02d", $hour, $min);
+        $timeyear = sprintf("%02d:%02d", $hour, $min);
     }
 
     sprintf "%5lu %4ld %-10s %2d %-8s %-8s %8s %s %2d %5s %s\n",
-           $ino,
-                $blocks,
-                     $perms,
-                           $nlink,
-                               $user,
-                                    $group,
-                                         $sizemm,
-                                             $moname,
-                                                $mday,
-                                                    $timeyear,
-                                                        $pname;
+             $ino,
+                  $blocks,
+                       $perms,
+                             $nlink,
+                                 $user,
+                                      $group,
+                                           $sizemm,
+                                               $moname,
+                                                  $mday,
+                                                      $timeyear,
+                                                          $pname;
 }
 
 package CPAN::FTP::netrc;
@@ -3455,7 +4639,7 @@ sub new {
 
     my($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
        $atime,$mtime,$ctime,$blksize,$blocks)
-       = stat($file);
+        = stat($file);
     $mode ||= 0;
     my $protected = 0;
 
@@ -3463,33 +4647,33 @@ sub new {
     $hasdefault = 0;
     $fh = FileHandle->new or die "Could not create a filehandle";
 
-    if($fh->open($file)){
-       $protected = ($mode & 077) == 0;
-       local($/) = "";
+    if($fh->open($file)) {
+        $protected = ($mode & 077) == 0;
+        local($/) = "";
       NETRC: while (<$fh>) {
-           my(@tokens) = split " ", $_;
-         TOKEN: while (@tokens) {
-               my($t) = shift @tokens;
-               if ($t eq "default"){
-                   $hasdefault++;
-                   last NETRC;
-               }
-               last TOKEN if $t eq "macdef";
-               if ($t eq "machine") {
-                   push @machines, shift @tokens;
-               }
-           }
-       }
+            my(@tokens) = split " ", $_;
+          TOKEN: while (@tokens) {
+                my($t) = shift @tokens;
+                if ($t eq "default") {
+                    $hasdefault++;
+                    last NETRC;
+                }
+                last TOKEN if $t eq "macdef";
+                if ($t eq "machine") {
+                    push @machines, shift @tokens;
+                }
+            }
+        }
     } else {
-       $file = $hasdefault = $protected = "";
+        $file = $hasdefault = $protected = "";
     }
 
     bless {
-          'mach' => [@machines],
-          'netrc' => $file,
-          'hasdefault' => $hasdefault,
-          'protected' => $protected,
-         }, $class;
+        'mach' => [@machines],
+        'netrc' => $file,
+        'hasdefault' => $hasdefault,
+        'protected' => $protected,
+    }, $class;
 }
 
 # CPAN::FTP::netrc::hasdefault;
@@ -3499,7 +4683,7 @@ sub protected  { shift->{'protected'}  }
 sub contains {
     my($self,$mach) = @_;
     for ( @{$self->{'mach'}} ) {
-       return 1 if $_ eq $mach;
+        return 1 if $_ eq $mach;
     }
     return 0;
 }
@@ -3515,15 +4699,15 @@ sub gnu_cpl {
     return () unless @perlret;
     my($newtext) = $text;
     for (my $i = length($text)+1;;$i++) {
-       last unless length($perlret[0]) && length($perlret[0]) >= $i;
-       my $try = substr($perlret[0],0,$i);
-       my @tries = grep {substr($_,0,$i) eq $try} @perlret;
-       # warn "try[$try]tries[@tries]";
-       if (@tries == @perlret) {
-           $newtext = $try;
-       } else {
-           last;
-       }
+        last unless length($perlret[0]) && length($perlret[0]) >= $i;
+        my $try = substr($perlret[0],0,$i);
+        my @tries = grep {substr($_,0,$i) eq $try} @perlret;
+        # warn "try[$try]tries[@tries]";
+        if (@tries == @perlret) {
+            $newtext = $try;
+        } else {
+            last;
+        }
     }
     ($newtext,@perlret);
 }
@@ -3536,39 +4720,39 @@ sub cpl {
     $pos ||= 0;
     CPAN->debug("word [$word] line[$line] pos[$pos]") if $CPAN::DEBUG;
     $line =~ s/^\s*//;
-    if ($line =~ s/^(force\s*)//) {
-       $pos -= length($1);
+    if ($line =~ s/^((?:notest|f?force)\s*)//) {
+        $pos -= length($1);
     }
     my @return;
-    if ($pos == 0) {
-       @return = grep /^$word/, @CPAN::Complete::COMMANDS;
+    if ($pos == 0 || $line =~ /^(?:h(?:elp)?|\?)\s/) {
+        @return = grep /^\Q$word\E/, @CPAN::Complete::COMMANDS;
     } elsif ( $line !~ /^[\!abcdghimorutl]/ ) {
-       @return = ();
+        @return = ();
     } elsif ($line =~ /^(a|ls)\s/) {
-       @return = cplx('CPAN::Author',uc($word));
+        @return = cplx('CPAN::Author',uc($word));
     } elsif ($line =~ /^b\s/) {
         CPAN::Shell->local_bundles;
-       @return = cplx('CPAN::Bundle',$word);
+        @return = cplx('CPAN::Bundle',$word);
     } elsif ($line =~ /^d\s/) {
-       @return = cplx('CPAN::Distribution',$word);
+        @return = cplx('CPAN::Distribution',$word);
     } elsif ($line =~ m/^(
                           [mru]|make|clean|dump|get|test|install|readme|look|cvs_import|perldoc|recent
                          )\s/x ) {
         if ($word =~ /^Bundle::/) {
             CPAN::Shell->local_bundles;
         }
-       @return = (cplx('CPAN::Module',$word),cplx('CPAN::Bundle',$word));
+        @return = (cplx('CPAN::Module',$word),cplx('CPAN::Bundle',$word));
     } elsif ($line =~ /^i\s/) {
-       @return = cpl_any($word);
+        @return = cpl_any($word);
     } elsif ($line =~ /^reload\s/) {
-       @return = cpl_reload($word,$line,$pos);
+        @return = cpl_reload($word,$line,$pos);
     } elsif ($line =~ /^o\s/) {
-       @return = cpl_option($word,$line,$pos);
+        @return = cpl_option($word,$line,$pos);
     } elsif ($line =~ m/^\S+\s/ ) {
         # fallback for future commands and what we have forgotten above
-       @return = (cplx('CPAN::Module',$word),cplx('CPAN::Bundle',$word));
+        @return = (cplx('CPAN::Module',$word),cplx('CPAN::Bundle',$word));
     } else {
-       @return = ();
+        @return = ();
     }
     return @return;
 }
@@ -3576,10 +4760,9 @@ sub cpl {
 #-> sub CPAN::Complete::cplx ;
 sub cplx {
     my($class, $word) = @_;
-    # I believed for many years that this was sorted, today I
-    # realized, it wasn't sorted anymore. Now (rev 1.301 / v 1.55) I
-    # make it sorted again. Maybe sort was dropped when GNU-readline
-    # support came in? The RCS file is difficult to read on that:-(
+    if (CPAN::_sqlite_running) {
+        $CPAN::SQLite->search($class, "^\Q$word\E");
+    }
     sort grep /^\Q$word\E/, map { $_->id } $CPAN::META->all_objects($class);
 }
 
@@ -3587,11 +4770,11 @@ sub cplx {
 sub cpl_any {
     my($word) = shift;
     return (
-           cplx('CPAN::Author',$word),
-           cplx('CPAN::Bundle',$word),
-           cplx('CPAN::Distribution',$word),
-           cplx('CPAN::Module',$word),
-          );
+            cplx('CPAN::Author',$word),
+            cplx('CPAN::Bundle',$word),
+            cplx('CPAN::Distribution',$word),
+            cplx('CPAN::Module',$word),
+           );
 }
 
 #-> sub CPAN::Complete::cpl_reload ;
@@ -3616,11 +4799,11 @@ sub cpl_option {
     return grep /^\Q$word\E/, @ok if @words == 2 && length($word);
     if (0) {
     } elsif ($words[1] eq 'index') {
-       return ();
+        return ();
     } elsif ($words[1] eq 'conf') {
-       return CPAN::HandleConfig::cpl(@_);
+        return CPAN::HandleConfig::cpl(@_);
     } elsif ($words[1] eq 'debug') {
-       return sort grep /^\Q$word\E/i,
+        return sort grep /^\Q$word\E/i,
             sort keys %CPAN::DEBUG, 'all';
     }
 }
@@ -3637,13 +4820,13 @@ sub force_reload {
 
 #-> sub CPAN::Index::reload ;
 sub reload {
-    my($cl,$force) = @_;
+    my($self,$force) = @_;
     my $time = time;
 
     # XXX check if a newer one is available. (We currently read it
     # from time to time)
     for ($CPAN::Config->{index_expire}) {
-       $_ = 0.001 unless $_ && $_ > 0.001;
+        $_ = 0.001 unless $_ && $_ > 0.001;
     }
     unless (1 || $CPAN::Have_warned->{readmetadatacache}++) {
         # debug here when CPAN doesn't seem to read the Metadata
@@ -3651,29 +4834,30 @@ sub reload {
         Carp::cluck("META-PROTOCOL[$CPAN::META->{PROTOCOL}]");
     }
     unless ($CPAN::META->{PROTOCOL}) {
-        $cl->read_metadata_cache;
+        $self->read_metadata_cache;
         $CPAN::META->{PROTOCOL} ||= "1.0";
     }
     if ( $CPAN::META->{PROTOCOL} < PROTOCOL  ) {
         # warn "Setting last_time to 0";
         $LAST_TIME = 0; # No warning necessary
     }
-    return if $LAST_TIME + $CPAN::Config->{index_expire}*86400 > $time
-       and ! $force;
-    if (0) {
+    if ($LAST_TIME + $CPAN::Config->{index_expire}*86400 > $time
+        and ! $force) {
+        # called too often
+        # CPAN->debug("LAST_TIME[$LAST_TIME]index_expire[$CPAN::Config->{index_expire}]time[$time]");
+    } elsif (0) {
         # IFF we are developing, it helps to wipe out the memory
         # between reloads, otherwise it is not what a user expects.
         undef $CPAN::META; # Neue Gruendlichkeit since v1.52(r1.274)
         $CPAN::META = CPAN->new;
-    }
-    {
+    } else {
         my($debug,$t2);
         local $LAST_TIME = $time;
         local $CPAN::META->{PROTOCOL} = PROTOCOL;
 
         my $needshort = $^O eq "dos";
 
-        $cl->rd_authindex($cl
+        $self->rd_authindex($self
                           ->reload_x(
                                      "authors/01mailrc.txt.gz",
                                      $needshort ?
@@ -3684,7 +4868,7 @@ sub reload {
         $debug = "timing reading 01[".($t2 - $time)."]";
         $time = $t2;
         return if $CPAN::Signal; # this is sometimes lengthy
-        $cl->rd_modpacks($cl
+        $self->rd_modpacks($self
                          ->reload_x(
                                     "modules/02packages.details.txt.gz",
                                     $needshort ?
@@ -3695,23 +4879,118 @@ sub reload {
         $debug .= "02[".($t2 - $time)."]";
         $time = $t2;
         return if $CPAN::Signal; # this is sometimes lengthy
-        $cl->rd_modlist($cl
+        $self->rd_modlist($self
                         ->reload_x(
                                    "modules/03modlist.data.gz",
                                    $needshort ?
                                    File::Spec->catfile('modules', '03mlist.gz') :
                                    File::Spec->catfile('modules', '03modlist.data.gz'),
                                    $force));
-        $cl->write_metadata_cache;
+        $self->write_metadata_cache;
         $t2 = time;
         $debug .= "03[".($t2 - $time)."]";
         $time = $t2;
         CPAN->debug($debug) if $CPAN::DEBUG;
     }
+    if ($CPAN::Config->{build_dir_reuse}) {
+        $self->reanimate_build_dir;
+    }
+    if (CPAN::_sqlite_running) {
+        $CPAN::SQLite->reload(time => $time, force => $force)
+            if not $LAST_TIME;
+    }
     $LAST_TIME = $time;
     $CPAN::META->{PROTOCOL} = PROTOCOL;
 }
 
+#-> sub CPAN::Index::reanimate_build_dir ;
+sub reanimate_build_dir {
+    my($self) = @_;
+    unless ($CPAN::META->has_inst($CPAN::Config->{yaml_module}||"YAML")) {
+        return;
+    }
+    return if $HAVE_REANIMATED++;
+    my $d = $CPAN::Config->{build_dir};
+    my $dh = DirHandle->new;
+    opendir $dh, $d or return; # does not exist
+    my $dirent;
+    my $i = 0;
+    my $painted = 0;
+    my $restored = 0;
+    $CPAN::Frontend->myprint("Going to read $CPAN::Config->{build_dir}/\n");
+    my @candidates = map { $_->[0] }
+        sort { $b->[1] <=> $a->[1] }
+            map { [ $_, -M File::Spec->catfile($d,$_) ] }
+                grep {/\.yml$/} readdir $dh;
+  DISTRO: for $i (0..$#candidates) {
+        my $dirent = $candidates[$i];
+        my $y = eval {CPAN->_yaml_loadfile(File::Spec->catfile($d,$dirent))};
+        if ($@) {
+            warn "Error while parsing file '$dirent'; error: '$@'";
+            next DISTRO;
+        }
+        my $c = $y->[0];
+        if ($c && CPAN->_perl_fingerprint($c->{perl})) {
+            my $key = $c->{distribution}{ID};
+            for my $k (keys %{$c->{distribution}}) {
+                if ($c->{distribution}{$k}
+                    && ref $c->{distribution}{$k}
+                    && UNIVERSAL::isa($c->{distribution}{$k},"CPAN::Distrostatus")) {
+                    $c->{distribution}{$k}{COMMANDID} = $i - @candidates;
+                }
+            }
+
+            #we tried to restore only if element already
+            #exists; but then we do not work with metadata
+            #turned off.
+            my $do
+                = $CPAN::META->{readwrite}{'CPAN::Distribution'}{$key}
+                    = $c->{distribution};
+            for my $skipper (qw(
+                                badtestcnt
+                                configure_requires_later
+                                configure_requires_later_for
+                                force_update
+                                later
+                                later_for
+                                notest
+                                should_report
+                                sponsored_mods
+                               )) {
+                delete $do->{$skipper};
+            }
+            # $DB::single = 1;
+            if ($do->{make_test}
+                && $do->{build_dir}
+                && !(UNIVERSAL::can($do->{make_test},"failed") ?
+                     $do->{make_test}->failed :
+                     $do->{make_test} =~ /^YES/
+                    )
+                && (
+                    !$do->{install}
+                    ||
+                    $do->{install}->failed
+                   )
+               ) {
+                $CPAN::META->is_tested($do->{build_dir},$do->{make_test}{TIME});
+            }
+            $restored++;
+        }
+        $i++;
+        while (($painted/76) < ($i/@candidates)) {
+            $CPAN::Frontend->myprint(".");
+            $painted++;
+        }
+    }
+    $CPAN::Frontend->myprint(sprintf(
+                                     "DONE\nFound %s old build%s, restored the state of %s\n",
+                                     @candidates ? sprintf("%d",scalar @candidates) : "no",
+                                     @candidates==1 ? "" : "s",
+                                     $restored || "none",
+                                    ));
+}
+
+
 #-> sub CPAN::Index::reload_x ;
 sub reload_x {
     my($cl,$wanted,$localname,$force) = @_;
@@ -3720,18 +4999,18 @@ sub reload_x {
                               # we rely on Config XXX
     $localname ||= $wanted;
     my $abs_wanted = File::Spec->catfile($CPAN::Config->{'keep_source_where'},
-                                        $localname);
+                                         $localname);
     if (
-       -f $abs_wanted &&
-       -M $abs_wanted < $CPAN::Config->{'index_expire'} &&
-       !($force & 1)
+        -f $abs_wanted &&
+        -M $abs_wanted < $CPAN::Config->{'index_expire'} &&
+        !($force & 1)
        ) {
-       my $s = $CPAN::Config->{'index_expire'} == 1 ? "" : "s";
-       $cl->debug(qq{$abs_wanted younger than $CPAN::Config->{'index_expire'} }.
-                  qq{day$s. I\'ll use that.});
-       return $abs_wanted;
+        my $s = $CPAN::Config->{'index_expire'} == 1 ? "" : "s";
+        $cl->debug(qq{$abs_wanted younger than $CPAN::Config->{'index_expire'} }.
+                   qq{day$s. I\'ll use that.});
+        return $abs_wanted;
     } else {
-       $force |= 1; # means we're quite serious about it.
+        $force |= 1; # means we're quite serious about it.
     }
     return CPAN::FTP->localize($wanted,$abs_wanted,$force);
 }
@@ -3739,8 +5018,9 @@ sub reload_x {
 #-> sub CPAN::Index::rd_authindex ;
 sub rd_authindex {
     my($cl, $index_target) = @_;
-    my @lines;
     return unless defined $index_target;
+    return if CPAN::_sqlite_running;
+    my @lines;
     $CPAN::Frontend->myprint("Going to read $index_target\n");
     local(*FH);
     tie *FH, 'CPAN::Tarzip', $index_target;
@@ -3748,20 +5028,23 @@ sub rd_authindex {
     local($_);
     push @lines, split /\012/ while <FH>;
     my $i = 0;
-    my $modulus = int($#lines/75) || 1;
-    CPAN->debug(sprintf "modulus[%d]lines[%s]", $modulus, scalar @lines) if $CPAN::DEBUG;
+    my $painted = 0;
     foreach (@lines) {
-       my($userid,$fullname,$email) =
-           m/alias\s+(\S+)\s+\"([^\"\<]*)\s+\<(.*)\>\"/;
+        my($userid,$fullname,$email) =
+            m/alias\s+(\S+)\s+\"([^\"\<]*)\s+\<(.*)\>\"/;
         $fullname ||= $email;
-       if ($userid && $fullname && $email){
+        if ($userid && $fullname && $email) {
             my $userobj = $CPAN::META->instance('CPAN::Author',$userid);
             $userobj->set('FULLNAME' => $fullname, 'EMAIL' => $email);
         } else {
             CPAN->debug(sprintf "line[%s]", $_) if $CPAN::DEBUG;
         }
-        $CPAN::Frontend->myprint(".") unless $i++ % $modulus;
-       return if $CPAN::Signal;
+        $i++;
+        while (($painted/76) < ($i/@lines)) {
+            $CPAN::Frontend->myprint(".");
+            $painted++;
+        }
+        return if $CPAN::Signal;
     }
     $CPAN::Frontend->myprint("DONE\n");
 }
@@ -3777,6 +5060,7 @@ sub userid {
 sub rd_modpacks {
     my($self, $index_target) = @_;
     return unless defined $index_target;
+    return if CPAN::_sqlite_running;
     $CPAN::Frontend->myprint("Going to read $index_target\n");
     my $fh = CPAN::Tarzip->TIEHANDLE($index_target);
     local $_;
@@ -3792,24 +5076,24 @@ sub rd_modpacks {
     # read header
     my($line_count,$last_updated);
     while (@lines) {
-       my $shift = shift(@lines);
-       last if $shift =~ /^\s*$/;
-       $shift =~ /^Line-Count:\s+(\d+)/ and $line_count = $1;
+        my $shift = shift(@lines);
+        last if $shift =~ /^\s*$/;
+        $shift =~ /^Line-Count:\s+(\d+)/ and $line_count = $1;
         $shift =~ /^Last-Updated:\s+(.+)/ and $last_updated = $1;
     }
     CPAN->debug("line_count[$line_count]last_updated[$last_updated]") if $CPAN::DEBUG;
     if (not defined $line_count) {
 
-       $CPAN::Frontend->mywarn(qq{Warning: Your $index_target does not contain a Line-Count header.
+        $CPAN::Frontend->mywarn(qq{Warning: Your $index_target does not contain a Line-Count header.
 Please check the validity of the index file by comparing it to more
 than one CPAN mirror. I'll continue but problems seem likely to
 happen.\a
 });
 
-       $CPAN::Frontend->mysleep(5);
+        $CPAN::Frontend->mysleep(5);
     } elsif ($line_count != scalar @lines) {
 
-       $CPAN::Frontend->mywarn(sprintf qq{Warning: Your %s
+        $CPAN::Frontend->mywarn(sprintf qq{Warning: Your %s
 contains a Line-Count header of %d but I see %d lines there. Please
 check the validity of the index file by comparing it to more than one
 CPAN mirror. I'll continue but problems seem likely to happen.\a\n},
@@ -3818,16 +5102,16 @@ $index_target, $line_count, scalar(@lines));
     }
     if (not defined $last_updated) {
 
-       $CPAN::Frontend->mywarn(qq{Warning: Your $index_target does not contain a Last-Updated header.
+        $CPAN::Frontend->mywarn(qq{Warning: Your $index_target does not contain a Last-Updated header.
 Please check the validity of the index file by comparing it to more
 than one CPAN mirror. I'll continue but problems seem likely to
 happen.\a
 });
 
-       $CPAN::Frontend->mysleep(5);
+        $CPAN::Frontend->mysleep(5);
     } else {
 
-       $CPAN::Frontend
+        $CPAN::Frontend
             ->myprint(sprintf qq{  Database was generated on %s\n},
                       $last_updated);
         $DATE_OF_02 = $last_updated;
@@ -3876,22 +5160,22 @@ happen.\a
     CPAN->debug("secondtime[$secondtime]") if $CPAN::DEBUG;
     my(%exists);
     my $i = 0;
-    my $modulus = int($#lines/75) || 1;
+    my $painted = 0;
     foreach (@lines) {
         # before 1.56 we split into 3 and discarded the rest. From
         # 1.57 we assign remaining text to $comment thus allowing to
         # influence isa_perl
-       my($mod,$version,$dist,$comment) = split " ", $_, 4;
-       my($bundle,$id,$userid);
-
-       if ($mod eq 'CPAN' &&
-           ! (
-              CPAN::Queue->exists('Bundle::CPAN') ||
-              CPAN::Queue->exists('CPAN')
-             )
-          ) {
+        my($mod,$version,$dist,$comment) = split " ", $_, 4;
+        my($bundle,$id,$userid);
+
+        if ($mod eq 'CPAN' &&
+            ! (
+            CPAN::Queue->exists('Bundle::CPAN') ||
+            CPAN::Queue->exists('CPAN')
+            )
+        ) {
             local($^W)= 0;
-            if ($version > $CPAN::VERSION){
+            if ($version > $CPAN::VERSION) {
                 $CPAN::Frontend->mywarn(qq{
   New CPAN.pm version (v$version) available.
   [Currently running version is v$CPAN::VERSION]
@@ -3903,70 +5187,74 @@ happen.\a
 
 }); #});
                 $CPAN::Frontend->mysleep(2);
-               $CPAN::Frontend->myprint(qq{\n});
-           }
-           last if $CPAN::Signal;
-       } elsif ($mod =~ /^Bundle::(.*)/) {
-           $bundle = $1;
-       }
-
-       if ($bundle){
-           $id =  $CPAN::META->instance('CPAN::Bundle',$mod);
-           # Let's make it a module too, because bundles have so much
-           # in common with modules.
+                $CPAN::Frontend->myprint(qq{\n});
+            }
+            last if $CPAN::Signal;
+        } elsif ($mod =~ /^Bundle::(.*)/) {
+            $bundle = $1;
+        }
+
+        if ($bundle) {
+            $id =  $CPAN::META->instance('CPAN::Bundle',$mod);
+            # Let's make it a module too, because bundles have so much
+            # in common with modules.
 
             # Changed in 1.57_63: seems like memory bloat now without
             # any value, so commented out
 
-           # $CPAN::META->instance('CPAN::Module',$mod);
+            # $CPAN::META->instance('CPAN::Module',$mod);
 
-       } else {
+        } else {
 
-           # instantiate a module object
-           $id = $CPAN::META->instance('CPAN::Module',$mod);
+            # instantiate a module object
+            $id = $CPAN::META->instance('CPAN::Module',$mod);
 
-       }
+        }
 
         # Although CPAN prohibits same name with different version the
         # indexer may have changed the version for the same distro
         # since the last time ("Force Reindexing" feature)
-       if ($id->cpan_file ne $dist
+        if ($id->cpan_file ne $dist
             ||
             $id->cpan_version ne $version
-           ){
-           $userid = $id->userid || $self->userid($dist);
-           $id->set(
-                    'CPAN_USERID' => $userid,
-                    'CPAN_VERSION' => $version,
-                    'CPAN_FILE' => $dist,
-                   );
-       }
-
-       # instantiate a distribution object
-       if ($CPAN::META->exists('CPAN::Distribution',$dist)) {
-         # we do not need CONTAINSMODS unless we do something with
-         # this dist, so we better produce it on demand.
-
-         ## my $obj = $CPAN::META->instance(
-         ##                              'CPAN::Distribution' => $dist
-         ##                             );
-         ## $obj->{CONTAINSMODS}{$mod} = undef; # experimental
-       } else {
-         $CPAN::META->instance(
-                               'CPAN::Distribution' => $dist
-                              )->set(
-                                     'CPAN_USERID' => $userid,
-                                      'CPAN_COMMENT' => $comment,
-                                    );
-       }
+           ) {
+            $userid = $id->userid || $self->userid($dist);
+            $id->set(
+                     'CPAN_USERID' => $userid,
+                     'CPAN_VERSION' => $version,
+                     'CPAN_FILE' => $dist,
+                    );
+        }
+
+        # instantiate a distribution object
+        if ($CPAN::META->exists('CPAN::Distribution',$dist)) {
+        # we do not need CONTAINSMODS unless we do something with
+        # this dist, so we better produce it on demand.
+
+        ## my $obj = $CPAN::META->instance(
+        ##                                 'CPAN::Distribution' => $dist
+        ##                                );
+        ## $obj->{CONTAINSMODS}{$mod} = undef; # experimental
+        } else {
+            $CPAN::META->instance(
+                                  'CPAN::Distribution' => $dist
+                                 )->set(
+                                        'CPAN_USERID' => $userid,
+                                        'CPAN_COMMENT' => $comment,
+                                       );
+        }
         if ($secondtime) {
             for my $name ($mod,$dist) {
                 # $self->debug("exists name[$name]") if $CPAN::DEBUG;
                 $exists{$name} = undef;
             }
         }
-        $CPAN::Frontend->myprint(".") unless $i++ % $modulus;
-       return if $CPAN::Signal;
+        $i++;
+        while (($painted/76) < ($i/@lines)) {
+            $CPAN::Frontend->myprint(".");
+            $painted++;
+        }
+        return if $CPAN::Signal;
     }
     $CPAN::Frontend->myprint("DONE\n");
     if ($secondtime) {
@@ -3985,6 +5273,7 @@ happen.\a
 sub rd_modlist {
     my($cl,$index_target) = @_;
     return unless defined $index_target;
+    return if CPAN::_sqlite_running;
     $CPAN::Frontend->myprint("Going to read $index_target\n");
     my $fh = CPAN::Tarzip->TIEHANDLE($index_target);
     local $_;
@@ -3996,15 +5285,15 @@ sub rd_modlist {
     my @eval2 = split /\012/, $slurp;
 
     while (@eval2) {
-       my $shift = shift(@eval2);
-       if ($shift =~ /^Date:\s+(.*)/){
-           if ($DATE_OF_03 eq $1){
+        my $shift = shift(@eval2);
+        if ($shift =~ /^Date:\s+(.*)/) {
+            if ($DATE_OF_03 eq $1) {
                 $CPAN::Frontend->myprint("Unchanged.\n");
                 return;
             }
-           ($DATE_OF_03) = $1;
-       }
-       last if $shift =~ /^\s*$/;
+            ($DATE_OF_03) = $1;
+        }
+        last if $shift =~ /^\s*$/;
     }
     push @eval2, q{CPAN::Modulelist->data;};
     local($^W) = 0;
@@ -4015,15 +5304,19 @@ sub rd_modlist {
     Carp::confess($@) if $@;
     return if $CPAN::Signal;
     my $i = 0;
-    my $until = keys(%$ret) - 1;
-    my $modulus = int($until/75) || 1;
+    my $until = keys(%$ret);
+    my $painted = 0;
     CPAN->debug(sprintf "until[%d]", $until) if $CPAN::DEBUG;
     for (keys %$ret) {
-       my $obj = $CPAN::META->instance("CPAN::Module",$_);
+        my $obj = $CPAN::META->instance("CPAN::Module",$_);
         delete $ret->{$_}{modid}; # not needed here, maybe elsewhere
-       $obj->set(%{$ret->{$_}});
-        $CPAN::Frontend->myprint(".") unless $i++ % $modulus;
-       return if $CPAN::Signal;
+        $obj->set(%{$ret->{$_}});
+        $i++;
+        while (($painted/76) < ($i/$until)) {
+            $CPAN::Frontend->myprint(".");
+            $painted++;
+        }
+        return if $CPAN::Signal;
     }
     $CPAN::Frontend->myprint("DONE\n");
 }
@@ -4032,11 +5325,12 @@ sub rd_modlist {
 sub write_metadata_cache {
     my($self) = @_;
     return unless $CPAN::Config->{'cache_metadata'};
+    return if CPAN::_sqlite_running;
     return unless $CPAN::META->has_usable("Storable");
     my $cache;
     foreach my $k (qw(CPAN::Bundle CPAN::Author CPAN::Module
-                     CPAN::Distribution)) {
-       $cache->{$k} = $CPAN::META->{readonly}{$k}; # unsafe meta access, ok
+                      CPAN::Distribution)) {
+        $cache->{$k} = $CPAN::META->{readonly}{$k}; # unsafe meta access, ok
     }
     my $metadata_file = File::Spec->catfile($CPAN::Config->{cpan_home},"Metadata");
     $cache->{last_time} = $LAST_TIME;
@@ -4051,6 +5345,7 @@ sub write_metadata_cache {
 sub read_metadata_cache {
     my($self) = @_;
     return unless $CPAN::Config->{'cache_metadata'};
+    return if CPAN::_sqlite_running;
     return unless $CPAN::META->has_usable("Storable");
     my $metadata_file = File::Spec->catfile($CPAN::Config->{cpan_home},"Metadata");
     return unless -r $metadata_file and -f $metadata_file;
@@ -4058,7 +5353,7 @@ sub read_metadata_cache {
     my $cache;
     eval { $cache = Storable::retrieve($metadata_file) };
     $CPAN::Frontend->mywarn($@) if $@; # ?? missing "\n" after $@ in mywarn ??
-    if (!$cache || !UNIVERSAL::isa($cache, 'HASH')){
+    if (!$cache || !UNIVERSAL::isa($cache, 'HASH')) {
         $LAST_TIME = 0;
         return;
     }
@@ -4079,8 +5374,8 @@ sub read_metadata_cache {
     my $clcnt = 0;
     my $idcnt = 0;
     while(my($class,$v) = each %$cache) {
-       next unless $class =~ /^CPAN::/;
-       $CPAN::META->{readonly}{$class} = $v; # unsafe meta access, ok
+        next unless $class =~ /^CPAN::/;
+        $CPAN::META->{readonly}{$class} = $v; # unsafe meta access, ok
         while (my($id,$ro) = each %$v) {
             $CPAN::META->{readwrite}{$class}{$id} ||=
                 $class->new(ID=>$id, RO=>$ro);
@@ -4103,7 +5398,7 @@ sub read_metadata_cache {
     $LAST_TIME = $cache->{last_time};
     $DATE_OF_02 = $cache->{DATE_OF_02};
     $CPAN::Frontend->myprint("  Database was generated on $DATE_OF_02\n")
-       if defined $DATE_OF_02; # An old cache may not contain DATE_OF_02
+        if defined $DATE_OF_02; # An old cache may not contain DATE_OF_02
     return;
 }
 
@@ -4115,10 +5410,17 @@ sub ro {
     exists $self->{RO} and return $self->{RO};
 }
 
+#-> sub CPAN::InfoObj::cpan_userid
 sub cpan_userid {
     my $self = shift;
-    my $ro = $self->ro or return "N/A"; # N/A for bundles found locally
-    return $ro->{CPAN_USERID} || "N/A";
+    my $ro = $self->ro;
+    if ($ro) {
+        return $ro->{CPAN_USERID} || "N/A";
+    } else {
+        $self->debug("ID[$self->{ID}]");
+        # N/A for bundles found locally
+        return "N/A";
+    }
 }
 
 sub id { shift->{ID}; }
@@ -4218,13 +5520,15 @@ sub as_string {
         if (substr($self->{ID},-1,1) eq ".") { # directory
             $ro = +{};
         } else {
-            $CPAN::Frontend->mydie("Unknown object $self->{ID}");
+            $CPAN::Frontend->mywarn("Unknown object $self->{ID}\n");
+            $CPAN::Frontend->mysleep(5);
+            return;
         }
     }
     for (sort keys %$ro) {
-       # next if m/^(ID|RO)$/;
-       my $extra = "";
-       if ($_ eq "CPAN_USERID") {
+        # next if m/^(ID|RO)$/;
+        my $extra = "";
+        if ($_ eq "CPAN_USERID") {
             $extra .= " (";
             $extra .= $self->fullname;
             my $email; # old perls!
@@ -4244,14 +5548,14 @@ sub as_string {
         push @m, sprintf "    %-12s %s%s\n", $_, $ro->{$_}, $extra;
     }
   KEY: for (sort keys %$self) {
-       next if m/^(ID|RO)$/;
+        next if m/^(ID|RO)$/;
         unless (defined $self->{$_}) {
             delete $self->{$_};
             next KEY;
         }
-       if (ref($self->{$_}) eq "ARRAY") {
-         push @m, sprintf "    %-12s %s\n", $_, "@{$self->{$_}}";
-       } elsif (ref($self->{$_}) eq "HASH") {
+        if (ref($self->{$_}) eq "ARRAY") {
+            push @m, sprintf "    %-12s %s\n", $_, "@{$self->{$_}}";
+        } elsif (ref($self->{$_}) eq "HASH") {
             my $value;
             if (/^CONTAINSMODS$/) {
                 $value = join(" ",sort keys %{$self->{$_}});
@@ -4263,20 +5567,20 @@ sub as_string {
                     for my $y (sort keys %{$v->{$x}}) {
                         push @svalue, "$y=>$v->{$x}{$y}";
                     }
-                    push @value, "$x\:" . join ",", @svalue;
+                    push @value, "$x\:" . join ",", @svalue if @svalue;
                 }
                 $value = join ";", @value;
             } else {
                 $value = $self->{$_};
             }
-         push @m, sprintf(
-                          "    %-12s %s\n",
-                          $_,
-                          $value,
-                          );
-       } else {
-         push @m, sprintf "    %-12s %s\n", $_, $self->{$_};
-       }
+            push @m, sprintf(
+                             "    %-12s %s\n",
+                             $_,
+                             $value,
+                            );
+        } else {
+            push @m, sprintf "    %-12s %s\n", $_, $self->{$_};
+        }
     }
     join "", @m, "\n";
 }
@@ -4289,24 +5593,24 @@ sub fullname {
 
 #-> sub CPAN::InfoObj::dump ;
 sub dump {
-  my($self, $what) = @_;
-  unless ($CPAN::META->has_inst("Data::Dumper")) {
-      $CPAN::Frontend->mydie("dump command requires Data::Dumper installed");
-  }
-  local $Data::Dumper::Sortkeys;
-  $Data::Dumper::Sortkeys = 1;
-  my $out = Data::Dumper::Dumper($what ? eval $what : $self);
-  if (length $out > 100000) {
-      my $fh_pager = FileHandle->new;
-      local($SIG{PIPE}) = "IGNORE";
-      my $pager = $CPAN::Config->{'pager'} || "cat";
-      $fh_pager->open("|$pager")
-          or die "Could not open pager $pager\: $!";
-      $fh_pager->print($out);
-      close $fh_pager;
-  } else {
-      $CPAN::Frontend->myprint($out);
-  }
+    my($self, $what) = @_;
+    unless ($CPAN::META->has_inst("Data::Dumper")) {
+        $CPAN::Frontend->mydie("dump command requires Data::Dumper installed");
+    }
+    local $Data::Dumper::Sortkeys;
+    $Data::Dumper::Sortkeys = 1;
+    my $out = Data::Dumper::Dumper($what ? eval $what : $self);
+    if (length $out > 100000) {
+        my $fh_pager = FileHandle->new;
+        local($SIG{PIPE}) = "IGNORE";
+        my $pager = $CPAN::Config->{'pager'} || "cat";
+        $fh_pager->open("|$pager")
+            or die "Could not open pager $pager\: $!";
+        $fh_pager->print($out);
+        close $fh_pager;
+    } else {
+        $CPAN::Frontend->myprint($out);
+    }
 }
 
 package CPAN::Author;
@@ -4387,9 +5691,11 @@ sub ls {
             $CPAN::Frontend->mydie("Text::Glob not installed, cannot proceed");
         }
     }
-    $CPAN::Frontend->myprint(join "", map {
-        sprintf("%8d %10s %s/%s\n", $_->[0], $_->[1], $id, $_->[2])
-    } sort { $a->[2] cmp $b->[2] } @dl);
+    unless ($silent >= 2) {
+        $CPAN::Frontend->myprint(join "", map {
+            sprintf("%8d %10s %s/%s\n", $_->[0], $_->[1], $id, $_->[2])
+        } sort { $a->[2] cmp $b->[2] } @dl);
+    }
     @dl;
 }
 
@@ -4402,8 +5708,8 @@ sub dir_listing {
     my $may_ftp = shift;
 
     my $lc_want =
-       File::Spec->catfile($CPAN::Config->{keep_source_where},
-                           "authors", "id", @$chksumfile);
+        File::Spec->catfile($CPAN::Config->{keep_source_where},
+                            "authors", "id", @$chksumfile);
 
     my $fh;
 
@@ -4412,8 +5718,8 @@ sub dir_listing {
     # though.)
     $fh = FileHandle->new;
     if (open($fh, $lc_want)) {
-       my $line = <$fh>; close $fh;
-       unlink($lc_want) unless $line =~ /PGP/;
+        my $line = <$fh>; close $fh;
+        unlink($lc_want) unless $line =~ /PGP/;
     }
 
     local($") = "/";
@@ -4436,7 +5742,7 @@ sub dir_listing {
                                            "$lc_want.gz",1);
             if ($lc_file) {
                 $lc_file =~ s{\.gz(?!\n)\Z}{}; #};
-                CPAN::Tarzip->new("$lc_file.gz")->gunzip($lc_file);
+                eval{CPAN::Tarzip->new("$lc_file.gz")->gunzip($lc_file)};
             } else {
                 return;
             }
@@ -4452,22 +5758,22 @@ sub dir_listing {
     # adapted from CPAN::Distribution::CHECKSUM_check_file ;
     $fh = FileHandle->new;
     my($cksum);
-    if (open $fh, $lc_file){
-       local($/);
-       my $eval = <$fh>;
-       $eval =~ s/\015?\012/\n/g;
-       close $fh;
-       my($comp) = Safe->new();
-       $cksum = $comp->reval($eval);
-       if ($@) {
-           rename $lc_file, "$lc_file.bad";
-           Carp::confess($@) if $@;
-       }
+    if (open $fh, $lc_file) {
+        local($/);
+        my $eval = <$fh>;
+        $eval =~ s/\015?\012/\n/g;
+        close $fh;
+        my($comp) = Safe->new();
+        $cksum = $comp->reval($eval);
+        if ($@) {
+            rename $lc_file, "$lc_file.bad";
+            Carp::confess($@) if $@;
+        }
     } elsif ($may_ftp) {
-       Carp::carp "Could not open '$lc_file' for reading.";
+        Carp::carp "Could not open '$lc_file' for reading.";
     } else {
         # Maybe should warn: "You may want to set show_upload_date to a true value"
-       return;
+        return;
     }
     my(@result,$f);
     for $f (sort keys %$cksum) {
@@ -4493,6 +5799,12 @@ sub dir_listing {
     @result;
 }
 
+#-> sub CPAN::Author::reports
+sub reports {
+    $CPAN::Frontend->mywarn("reports on authors not implemented.
+Please file a bugreport if you need this.\n");
+}
+
 package CPAN::Distribution;
 use strict;
 
@@ -4503,18 +5815,40 @@ sub cpan_comment {
     $ro->{CPAN_COMMENT}
 }
 
-# CPAN::Distribution::undelay
+#-> CPAN::Distribution::undelay
 sub undelay {
     my $self = shift;
-    delete $self->{later};
+    for my $delayer (
+                     "configure_requires_later",
+                     "configure_requires_later_for",
+                     "later",
+                     "later_for",
+                    ) {
+        delete $self->{$delayer};
+    }
+}
+
+#-> CPAN::Distribution::is_dot_dist
+sub is_dot_dist {
+    my($self) = @_;
+    return substr($self->id,-1,1) eq ".";
 }
 
 # add the A/AN/ stuff
-# CPAN::Distribution::normalize
+#-> CPAN::Distribution::normalize
 sub normalize {
     my($self,$s) = @_;
     $s = $self->id unless defined $s;
     if (substr($s,-1,1) eq ".") {
+        # using a global because we are sometimes called as static method
+        if (!$CPAN::META->{LOCK}
+            && !$CPAN::Have_warned->{"$s is unlocked"}++
+           ) {
+            $CPAN::Frontend->mywarn("You are visiting the local directory
+  '$s'
+  without lock, take care that concurrent processes do not do likewise.\n");
+            $CPAN::Frontend->mysleep(1);
+        }
         if ($s eq ".") {
             $s = "$CPAN::iCwd/.";
         } elsif (File::Spec->file_name_is_absolute($s)) {
@@ -4528,7 +5862,7 @@ sub normalize {
             for ($CPAN::META->instance("CPAN::Distribution", $s)) {
                 $_->{build_dir} = $s;
                 $_->{archived} = "local_directory";
-                $_->{unwrapped} = "local_directory";
+                $_->{unwrapped} = CPAN::Distrostatus->new("YES -- local_directory");
             }
         }
     } elsif (
@@ -4547,7 +5881,12 @@ sub normalize {
 #-> sub CPAN::Distribution::author ;
 sub author {
     my($self) = @_;
-    my($authorid) = $self->pretty_id =~ /^([\w\-]+)/;
+    my($authorid);
+    if (substr($self->id,-1,1) eq ".") {
+        $authorid = "LOCAL";
+    } else {
+        ($authorid) = $self->pretty_id =~ /^([\w\-]+)/;
+    }
     CPAN::Shell->expand("Author",$authorid);
 }
 
@@ -4563,18 +5902,27 @@ sub fast_yaml {
     my($local_file);
     my($local_wanted) =
         File::Spec->catfile(
-                           $CPAN::Config->{keep_source_where},
-                           "authors",
-                           "id",
-                           split(/\//,$norm)
-                          );
+                            $CPAN::Config->{keep_source_where},
+                            "authors",
+                            "id",
+                            split(/\//,$norm)
+                           );
     $self->debug("Doing localize") if $CPAN::DEBUG;
     unless ($local_file =
             CPAN::FTP->localize("authors/id/$norm",
                                 $local_wanted)) {
         $CPAN::Frontend->mydie("Giving up on downloading yaml file '$local_wanted'\n");
     }
-    my $yaml = CPAN->_yaml_loadfile($local_file);
+    my $yaml = CPAN->_yaml_loadfile($local_file)->[0];
+}
+
+#-> sub CPAN::Distribution::cpan_userid
+sub cpan_userid {
+    my $self = shift;
+    if ($self->{ID} =~ m{[A-Z]/[A-Z\-]{2}/([A-Z\-]+)/}) {
+        return $1;
+    }
+    return $self->SUPER::cpan_userid;
 }
 
 #-> sub CPAN::Distribution::pretty_id
@@ -4585,7 +5933,20 @@ sub pretty_id {
     substr($id,5);
 }
 
-# mark as dirty/clean
+#-> sub CPAN::Distribution::base_id
+sub base_id {
+    my $self = shift;
+    my $id = $self->pretty_id();
+    my $base_id = File::Basename::basename($id);
+    $base_id =~ s{\.(?:tar\.(bz2|gz|Z)|t(?:gz|bz)|zip)$}{}i;
+    return $base_id;
+}
+
+# mark as dirty/clean for the sake of recursion detection. $color=1
+# means "in use", $color=0 means "not in use anymore". $color=2 means
+# we have determined prereqs now and thus insist on passing this
+# through (at least) once again.
+
 #-> sub CPAN::Distribution::color_cmd_tmps ;
 sub color_cmd_tmps {
     my($self) = shift;
@@ -4595,9 +5956,10 @@ sub color_cmd_tmps {
     # a distribution needs to recurse into its prereq_pms
 
     return if exists $self->{incommandcolor}
+        && $color==1
         && $self->{incommandcolor}==$color;
-    if ($depth>=100){
-        $CPAN::Frontend->mydie(CPAN::Exception::RecursiveDependency->new($ancestors));
+    if ($depth>=$CPAN::MAX_RECURSION) {
+        die(CPAN::Exception::RecursiveDependency->new($ancestors));
     }
     # warn "color_cmd_tmps $depth $color " . $self->id; # sleep 1;
     my $prereq_pm = $self->prereq_pm;
@@ -4616,6 +5978,11 @@ sub color_cmd_tmps {
     }
     if ($color==0) {
         delete $self->{sponsored_mods};
+
+        # as we are at the end of a command, we'll give up this
+        # reminder of a broken test. Other commands may test this guy
+        # again. Maybe 'badtestcnt' should be renamed to
+        # 'make_test_failed_within_command'?
         delete $self->{badtestcnt};
     }
     $self->{incommandcolor} = $color;
@@ -4623,42 +5990,46 @@ sub color_cmd_tmps {
 
 #-> sub CPAN::Distribution::as_string ;
 sub as_string {
-  my $self = shift;
-  $self->containsmods;
-  $self->upload_date;
-  $self->SUPER::as_string(@_);
+    my $self = shift;
+    $self->containsmods;
+    $self->upload_date;
+    $self->SUPER::as_string(@_);
 }
 
 #-> sub CPAN::Distribution::containsmods ;
 sub containsmods {
-  my $self = shift;
-  return keys %{$self->{CONTAINSMODS}} if exists $self->{CONTAINSMODS};
-  my $dist_id = $self->{ID};
-  for my $mod ($CPAN::META->all_objects("CPAN::Module")) {
-    my $mod_file = $mod->cpan_file or next;
-    my $mod_id = $mod->{ID} or next;
-    # warn "mod_file[$mod_file] dist_id[$dist_id] mod_id[$mod_id]";
-    # sleep 1;
-    $self->{CONTAINSMODS}{$mod_id} = undef if $mod_file eq $dist_id;
-  }
-  keys %{$self->{CONTAINSMODS}};
+    my $self = shift;
+    return keys %{$self->{CONTAINSMODS}} if exists $self->{CONTAINSMODS};
+    my $dist_id = $self->{ID};
+    for my $mod ($CPAN::META->all_objects("CPAN::Module")) {
+        my $mod_file = $mod->cpan_file or next;
+        my $mod_id = $mod->{ID} or next;
+        # warn "mod_file[$mod_file] dist_id[$dist_id] mod_id[$mod_id]";
+        # sleep 1;
+        if ($CPAN::Signal) {
+            delete $self->{CONTAINSMODS};
+            return;
+        }
+        $self->{CONTAINSMODS}{$mod_id} = undef if $mod_file eq $dist_id;
+    }
+    keys %{$self->{CONTAINSMODS}||{}};
 }
 
 #-> sub CPAN::Distribution::upload_date ;
 sub upload_date {
-  my $self = shift;
-  return $self->{UPLOAD_DATE} if exists $self->{UPLOAD_DATE};
-  my(@local_wanted) = split(/\//,$self->id);
-  my $filename = pop @local_wanted;
-  push @local_wanted, "CHECKSUMS";
-  my $author = CPAN::Shell->expand("Author",$self->cpan_userid);
-  return unless $author;
-  my @dl = $author->dir_listing(\@local_wanted,0,$CPAN::Config->{show_upload_date});
-  return unless @dl;
-  my($dirent) = grep { $_->[2] eq $filename } @dl;
-  # warn sprintf "dirent[%s]id[%s]", $dirent, $self->id;
-  return unless $dirent->[1];
-  return $self->{UPLOAD_DATE} = $dirent->[1];
+    my $self = shift;
+    return $self->{UPLOAD_DATE} if exists $self->{UPLOAD_DATE};
+    my(@local_wanted) = split(/\//,$self->id);
+    my $filename = pop @local_wanted;
+    push @local_wanted, "CHECKSUMS";
+    my $author = CPAN::Shell->expand("Author",$self->cpan_userid);
+    return unless $author;
+    my @dl = $author->dir_listing(\@local_wanted,0,$CPAN::Config->{show_upload_date});
+    return unless @dl;
+    my($dirent) = grep { $_->[2] eq $filename } @dl;
+    # warn sprintf "dirent[%s]id[%s]", $dirent, $self->id;
+    return unless $dirent->[1];
+    return $self->{UPLOAD_DATE} = $dirent->[1];
 }
 
 #-> sub CPAN::Distribution::uptodate ;
@@ -4667,7 +6038,7 @@ sub uptodate {
     my $c;
     foreach $c ($self->containsmods) {
         my $obj = CPAN::Shell->expandany($c);
-        unless ($obj->uptodate){
+        unless ($obj->uptodate) {
             my $id = $self->pretty_id;
             $self->debug("$id not uptodate due to $c") if $CPAN::DEBUG;
             return 0;
@@ -4686,26 +6057,101 @@ sub called_for {
 #-> sub CPAN::Distribution::get ;
 sub get {
     my($self) = @_;
+    $self->debug("checking goto id[$self->{ID}]") if $CPAN::DEBUG;
+    if (my $goto = $self->prefs->{goto}) {
+        $CPAN::Frontend->mywarn
+            (sprintf(
+                     "delegating to '%s' as specified in prefs file '%s' doc %d\n",
+                     $goto,
+                     $self->{prefs_file},
+                     $self->{prefs_file_doc},
+                    ));
+        return $self->goto($goto);
+    }
+    local $ENV{PERL5LIB} = defined($ENV{PERL5LIB})
+                           ? $ENV{PERL5LIB}
+                           : ($ENV{PERLLIB} || "");
+
+    $CPAN::META->set_perl5lib;
+    local $ENV{MAKEFLAGS}; # protect us from outer make calls
+
   EXCUSE: {
-       my @e;
-       exists $self->{'build_dir'} and push @e,
-           "Is already unwrapped into directory $self->{'build_dir'}";
-       $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        my @e;
+        my $goodbye_message;
+        $self->debug("checking disabled id[$self->{ID}]") if $CPAN::DEBUG;
+        if ($self->prefs->{disabled}) {
+            my $why = sprintf(
+                              "Disabled via prefs file '%s' doc %d",
+                              $self->{prefs_file},
+                              $self->{prefs_file_doc},
+                             );
+            push @e, $why;
+            $self->{unwrapped} = CPAN::Distrostatus->new("NO $why");
+            $goodbye_message = "[disabled] -- NA $why";
+            # note: not intended to be persistent but at least visible
+            # during this session
+        } else {
+            if (exists $self->{build_dir} && -d $self->{build_dir}
+                && ($self->{modulebuild}||$self->{writemakefile})
+               ) {
+                # this deserves print, not warn:
+                $CPAN::Frontend->myprint("  Has already been unwrapped into directory ".
+                                         "$self->{build_dir}\n"
+                                        );
+                return 1;
+            }
+
+            # although we talk about 'force' we shall not test on
+            # force directly. New model of force tries to refrain from
+            # direct checking of force.
+            exists $self->{unwrapped} and (
+                                           UNIVERSAL::can($self->{unwrapped},"failed") ?
+                                           $self->{unwrapped}->failed :
+                                           $self->{unwrapped} =~ /^NO/
+                                          )
+                and push @e, "Unwrapping had some problem, won't try again without force";
+        }
+        if (@e) {
+            $CPAN::Frontend->mywarn(join "", map {"$_\n"} @e);
+            if ($goodbye_message) {
+                 $self->goodbye($goodbye_message);
+            }
+            return;
+        }
     }
     my $sub_wd = CPAN::anycwd(); # for cleaning up as good as possible
 
-    #
-    # Get the file on local disk
-    #
+    my($local_file);
+    unless ($self->{build_dir} && -d $self->{build_dir}) {
+        $self->get_file_onto_local_disk;
+        return if $CPAN::Signal;
+        $self->check_integrity;
+        return if $CPAN::Signal;
+        (my $packagedir,$local_file) = $self->run_preps_on_packagedir;
+        $packagedir ||= $self->{build_dir};
+        $self->{build_dir} = $packagedir;
+    }
+
+    if ($CPAN::Signal) {
+        $self->safe_chdir($sub_wd);
+        return;
+    }
+    return $self->run_MM_or_MB($local_file);
+}
 
+#-> CPAN::Distribution::get_file_onto_local_disk
+sub get_file_onto_local_disk {
+    my($self) = @_;
+
+    return if $self->is_dot_dist;
     my($local_file);
     my($local_wanted) =
         File::Spec->catfile(
-                           $CPAN::Config->{keep_source_where},
-                           "authors",
-                           "id",
-                           split(/\//,$self->id)
-                          );
+                            $CPAN::Config->{keep_source_where},
+                            "authors",
+                            "id",
+                            split(/\//,$self->id)
+                           );
 
     $self->debug("Doing localize") if $CPAN::DEBUG;
     unless ($local_file =
@@ -4718,65 +6164,69 @@ sub get {
         }
         $CPAN::Frontend->mydie("Giving up on '$local_wanted'\n$note");
     }
-    $self->debug("local_file[$local_file]") if $CPAN::DEBUG;
+
+    $self->debug("local_wanted[$local_wanted]local_file[$local_file]") if $CPAN::DEBUG;
     $self->{localfile} = $local_file;
-    return if $CPAN::Signal;
+}
 
-    #
-    # Check integrity
-    #
+
+#-> CPAN::Distribution::check_integrity
+sub check_integrity {
+    my($self) = @_;
+
+    return if $self->is_dot_dist;
     if ($CPAN::META->has_inst("Digest::SHA")) {
-       $self->debug("Digest::SHA is installed, verifying");
-       $self->verifyCHECKSUM;
+        $self->debug("Digest::SHA is installed, verifying");
+        $self->verifyCHECKSUM;
     } else {
-       $self->debug("Digest::SHA is NOT installed");
+        $self->debug("Digest::SHA is NOT installed");
     }
-    return if $CPAN::Signal;
+}
+
+#-> CPAN::Distribution::run_preps_on_packagedir
+sub run_preps_on_packagedir {
+    my($self) = @_;
+    return if $self->is_dot_dist;
 
-    #
-    # Create a clean room and go there
-    #
     $CPAN::META->{cachemgr} ||= CPAN::CacheMgr->new(); # unsafe meta access, ok
     my $builddir = $CPAN::META->{cachemgr}->dir; # unsafe meta access, ok
     $self->safe_chdir($builddir);
-    $self->debug("Removing tmp") if $CPAN::DEBUG;
-    File::Path::rmtree("tmp");
-    unless (mkdir "tmp", 0755) {
+    $self->debug("Removing tmp-$$") if $CPAN::DEBUG;
+    File::Path::rmtree("tmp-$$");
+    unless (mkdir "tmp-$$", 0755) {
         $CPAN::Frontend->unrecoverable_error(<<EOF);
-Couldn't mkdir '$builddir/tmp': $!
+Couldn't mkdir '$builddir/tmp-$$': $!
 
 Cannot continue: Please find the reason why I cannot make the
 directory
-$builddir/tmp
+$builddir/tmp-$$
 and fix the problem, then retry.
 
 EOF
     }
-    if ($CPAN::Signal){
-        $self->safe_chdir($sub_wd);
+    if ($CPAN::Signal) {
         return;
     }
-    $self->safe_chdir("tmp");
+    $self->safe_chdir("tmp-$$");
 
     #
     # Unpack the goods
     #
-    $self->debug("local_file[$local_file]") if $CPAN::DEBUG;
-    my $ct = CPAN::Tarzip->new($local_file);
-    if ($local_file =~ /(\.tar\.(bz2|gz|Z)|\.tgz)(?!\n)\Z/i){
-        $self->{was_uncompressed}++ unless $ct->gtest();
-       $self->untar_me($ct);
+    my $local_file = $self->{localfile};
+    my $ct = eval{CPAN::Tarzip->new($local_file)};
+    unless ($ct) {
+        $self->{unwrapped} = CPAN::Distrostatus->new("NO");
+        delete $self->{build_dir};
+        return;
+    }
+    if ($local_file =~ /(\.tar\.(bz2|gz|Z)|\.tgz)(?!\n)\Z/i) {
+        $self->{was_uncompressed}++ unless eval{$ct->gtest()};
+        $self->untar_me($ct);
     } elsif ( $local_file =~ /\.zip(?!\n)\Z/i ) {
-       $self->unzip_me($ct);
+        $self->unzip_me($ct);
     } else {
         $self->{was_uncompressed}++ unless $ct->gtest();
-        $self->debug("calling pm2dir for local_file[$local_file]")
-         if $CPAN::DEBUG;
-       $local_file = $self->handle_singlefile($local_file);
-#    } else {
-#      $self->{archived} = "NO";
-#        $self->safe_chdir($sub_wd);
-#        return;
+        $local_file = $self->handle_singlefile($local_file);
     }
 
     # we are still in the tmp directory!
@@ -4785,234 +6235,487 @@ EOF
         or Carp::croak("Couldn't opendir .: $!");
     my @readdir = grep $_ !~ /^\.\.?(?!\n)\Z/s, $dh->read; ### MAC??
     $dh->close;
-    my ($distdir,$packagedir);
-    if (@readdir == 1 && -d $readdir[0]) {
-        $distdir = $readdir[0];
-        $packagedir = File::Spec->catdir($builddir,$distdir);
-        $self->debug("packagedir[$packagedir]builddir[$builddir]distdir[$distdir]")
-            if $CPAN::DEBUG;
-        -d $packagedir and $CPAN::Frontend->myprint("Removing previously used ".
-                                                    "$packagedir\n");
-        File::Path::rmtree($packagedir);
-        unless (File::Copy::move($distdir,$packagedir)) {
-            $CPAN::Frontend->unrecoverable_error(<<EOF);
+    my ($packagedir);
+    # XXX here we want in each branch File::Temp to protect all build_dir directories
+    if (CPAN->has_inst("File::Temp")) {
+        my $tdir_base;
+        my $from_dir;
+        my @dirents;
+        if (@readdir == 1 && -d $readdir[0]) {
+            $tdir_base = $readdir[0];
+            $from_dir = File::Spec->catdir(File::Spec->curdir,$readdir[0]);
+            my $dh2 = DirHandle->new($from_dir)
+                or Carp::croak("Couldn't opendir $from_dir: $!");
+            @dirents = grep $_ !~ /^\.\.?(?!\n)\Z/s, $dh2->read; ### MAC??
+        } else {
+            my $userid = $self->cpan_userid;
+            CPAN->debug("userid[$userid]");
+            if (!$userid or $userid eq "N/A") {
+                $userid = "anon";
+            }
+            $tdir_base = $userid;
+            $from_dir = File::Spec->curdir;
+            @dirents = @readdir;
+        }
+        $packagedir = File::Temp::tempdir(
+                                          "$tdir_base-XXXXXX",
+                                          DIR => $builddir,
+                                          CLEANUP => 0,
+                                         );
+        my $f;
+        for $f (@dirents) { # is already without "." and ".."
+            my $from = File::Spec->catdir($from_dir,$f);
+            my $to = File::Spec->catdir($packagedir,$f);
+            unless (File::Copy::move($from,$to)) {
+                my $err = $!;
+                $from = File::Spec->rel2abs($from);
+                Carp::confess("Couldn't move $from to $to: $err");
+            }
+        }
+    } else { # older code below, still better than nothing when there is no File::Temp
+        my($distdir);
+        if (@readdir == 1 && -d $readdir[0]) {
+            $distdir = $readdir[0];
+            $packagedir = File::Spec->catdir($builddir,$distdir);
+            $self->debug("packagedir[$packagedir]builddir[$builddir]distdir[$distdir]")
+                if $CPAN::DEBUG;
+            -d $packagedir and $CPAN::Frontend->myprint("Removing previously used ".
+                                                        "$packagedir\n");
+            File::Path::rmtree($packagedir);
+            unless (File::Copy::move($distdir,$packagedir)) {
+                $CPAN::Frontend->unrecoverable_error(<<EOF);
 Couldn't move '$distdir' to '$packagedir': $!
 
 Cannot continue: Please find the reason why I cannot move
-$builddir/tmp/$distdir
+$builddir/tmp-$$/$distdir
 to
 $packagedir
 and fix the problem, then retry
 
 EOF
+            }
+            $self->debug(sprintf("moved distdir[%s] to packagedir[%s] -e[%s]-d[%s]",
+                                 $distdir,
+                                 $packagedir,
+                                 -e $packagedir,
+                                 -d $packagedir,
+                                )) if $CPAN::DEBUG;
+        } else {
+            my $userid = $self->cpan_userid;
+            CPAN->debug("userid[$userid]") if $CPAN::DEBUG;
+            if (!$userid or $userid eq "N/A") {
+                $userid = "anon";
+            }
+            my $pragmatic_dir = $userid . '000';
+            $pragmatic_dir =~ s/\W_//g;
+            $pragmatic_dir++ while -d "../$pragmatic_dir";
+            $packagedir = File::Spec->catdir($builddir,$pragmatic_dir);
+            $self->debug("packagedir[$packagedir]") if $CPAN::DEBUG;
+            File::Path::mkpath($packagedir);
+            my($f);
+            for $f (@readdir) { # is already without "." and ".."
+                my $to = File::Spec->catdir($packagedir,$f);
+                File::Copy::move($f,$to) or Carp::confess("Couldn't move $f to $to: $!");
+            }
         }
-        $self->debug(sprintf("moved distdir[%s] to packagedir[%s] -e[%s]-d[%s]",
-                             $distdir,
-                             $packagedir,
-                             -e $packagedir,
-                             -d $packagedir,
-                            )) if $CPAN::DEBUG;
-    } else {
-        my $userid = $self->cpan_userid;
-        unless ($userid) {
-            CPAN->debug("no userid? self[$self]");
-            $userid = "anon";
-        }
-        my $pragmatic_dir = $userid . '000';
-        $pragmatic_dir =~ s/\W_//g;
-        $pragmatic_dir++ while -d "../$pragmatic_dir";
-        $packagedir = File::Spec->catdir($builddir,$pragmatic_dir);
-        $self->debug("packagedir[$packagedir]") if $CPAN::DEBUG;
-        File::Path::mkpath($packagedir);
-        my($f);
-        for $f (@readdir) { # is already without "." and ".."
-            my $to = File::Spec->catdir($packagedir,$f);
-            File::Copy::move($f,$to) or Carp::confess("Couldn't move $f to $to: $!");
-        }
-    }
-    if ($CPAN::Signal){
-        $self->safe_chdir($sub_wd);
-        return;
     }
-
-    $self->{'build_dir'} = $packagedir;
+    $self->{build_dir} = $packagedir;
     $self->safe_chdir($builddir);
-    File::Path::rmtree("tmp");
+    File::Path::rmtree("tmp-$$");
 
     $self->safe_chdir($packagedir);
-    if ($CPAN::Config->{check_sigs}) {
-        if ($CPAN::META->has_inst("Module::Signature")) {
-            if (-f "SIGNATURE") {
-                $self->debug("Module::Signature is installed, verifying") if $CPAN::DEBUG;
-                my $rv = Module::Signature::verify();
-                if ($rv != Module::Signature::SIGNATURE_OK() and
-                    $rv != Module::Signature::SIGNATURE_MISSING()) {
-                    $CPAN::Frontend->myprint(
-                                             qq{\nSignature invalid for }.
-                                             qq{distribution file. }.
-                                             qq{Please investigate.\n\n}.
-                                             $self->as_string,
-                                             $CPAN::META->instance(
-                                                                   'CPAN::Author',
-                                                                   $self->cpan_userid,
-                                                                  )->as_string
-                                            );
+    $self->_signature_business();
+    $self->safe_chdir($builddir);
 
-                    my $wrap =
-                        sprintf(qq{I'd recommend removing %s. Its signature
-is invalid. Maybe you have configured your 'urllist' with
-a bad URL. Please check this array with 'o conf urllist', and
-retry. For more information, try opening a subshell with
-  look %s
-and there run
-  cpansign -v
-},
-                                $self->{localfile},
-                                $self->pretty_id,
-                               );
-                    $self->{signature_verify} = CPAN::Distrostatus->new("NO");
-                    $CPAN::Frontend->mywarn(Text::Wrap::wrap("","",$wrap));
-                    $CPAN::Frontend->mysleep(5) if $CPAN::Frontend->can("mysleep");
-                } else {
-                    $self->{signature_verify} = CPAN::Distrostatus->new("YES");
-                    $self->debug("Module::Signature has verified") if $CPAN::DEBUG;
-                }
-            } else {
-                $CPAN::Frontend->mywarn(qq{Package came without SIGNATURE\n\n});
+    return($packagedir,$local_file);
+}
+
+#-> sub CPAN::Distribution::parse_meta_yml ;
+sub parse_meta_yml {
+    my($self) = @_;
+    my $build_dir = $self->{build_dir} or die "PANIC: cannot parse yaml without a build_dir";
+    my $yaml = File::Spec->catfile($build_dir,"META.yml");
+    $self->debug("yaml[$yaml]") if $CPAN::DEBUG;
+    return unless -f $yaml;
+    my $early_yaml;
+    eval {
+        require Parse::Metayaml; # hypothetical
+        $early_yaml = Parse::Metayaml::LoadFile($yaml)->[0];
+    };
+    unless ($early_yaml) {
+        eval { $early_yaml = CPAN->_yaml_loadfile($yaml)->[0]; };
+    }
+    unless ($early_yaml) {
+        return;
+    }
+    return $early_yaml;
+}
+
+#-> sub CPAN::Distribution::satisfy_configure_requires ;
+sub satisfy_configure_requires {
+    my($self) = @_;
+    my $enable_configure_requires = 1;
+    if (!$enable_configure_requires) {
+        return 1;
+        # if we return 1 here, everything is as before we introduced
+        # configure_requires that means, things with
+        # configure_requires simply fail, all others succeed
+    }
+    my @prereq = $self->unsat_prereq("configure_requires_later") or return 1;
+    if ($self->{configure_requires_later}) {
+        for my $k (keys %{$self->{configure_requires_later_for}||{}}) {
+            if ($self->{configure_requires_later_for}{$k}>1) {
+                # we must not come here a second time
+                $CPAN::Frontend->mywarn("Panic: Some prerequisites is not available, please investigate...");
+                require YAML::Syck;
+                $CPAN::Frontend->mydie
+                    (
+                     YAML::Syck::Dump
+                     ({self=>$self, prereq=>\@prereq})
+                    );
             }
-        } else {
-            $self->debug("Module::Signature is NOT installed") if $CPAN::DEBUG;
         }
     }
-    $self->safe_chdir($builddir);
-    return if $CPAN::Signal;
-
+    if ($prereq[0][0] eq "perl") {
+        my $need = "requires perl '$prereq[0][1]'";
+        my $id = $self->pretty_id;
+        $CPAN::Frontend->mywarn("$id $need; you have only $]; giving up\n");
+        $self->{make} = CPAN::Distrostatus->new("NO $need");
+        $self->store_persistent_state;
+        return $self->goodbye("[prereq] -- NOT OK");
+    } else {
+        my $follow = eval {
+            $self->follow_prereqs("configure_requires_later", @prereq);
+        };
+        if (0) {
+        } elsif ($follow) {
+            return;
+        } elsif ($@ && ref $@ && $@->isa("CPAN::Exception::RecursiveDependency")) {
+            $CPAN::Frontend->mywarn($@);
+            return $self->goodbye("[depend] -- NOT OK");
+        }
+    }
+    die "never reached";
+}
 
-    my($mpl) = File::Spec->catfile($packagedir,"Makefile.PL");
+#-> sub CPAN::Distribution::run_MM_or_MB ;
+sub run_MM_or_MB {
+    my($self,$local_file) = @_;
+    $self->satisfy_configure_requires() or return;
+    my($mpl) = File::Spec->catfile($self->{build_dir},"Makefile.PL");
     my($mpl_exists) = -f $mpl;
     unless ($mpl_exists) {
         # NFS has been reported to have racing problems after the
         # renaming of a directory in some environments.
         # This trick helps.
         $CPAN::Frontend->mysleep(1);
-        my $mpldh = DirHandle->new($packagedir)
-            or Carp::croak("Couldn't opendir $packagedir: $!");
+        my $mpldh = DirHandle->new($self->{build_dir})
+            or Carp::croak("Couldn't opendir $self->{build_dir}: $!");
         $mpl_exists = grep /^Makefile\.PL$/, $mpldh->read;
         $mpldh->close;
     }
     my $prefer_installer = "eumm"; # eumm|mb
-    if (-f File::Spec->catfile($packagedir,"Build.PL")) {
+    if (-f File::Spec->catfile($self->{build_dir},"Build.PL")) {
         if ($mpl_exists) { # they *can* choose
             if ($CPAN::META->has_inst("Module::Build")) {
-                $prefer_installer = $CPAN::Config->{prefer_installer};
+                $prefer_installer = CPAN::HandleConfig->prefs_lookup($self,
+                                                                     q{prefer_installer});
             }
         } else {
             $prefer_installer = "mb";
         }
     }
+    return unless $self->patch;
+    if (lc($prefer_installer) eq "rand") {
+        $prefer_installer = rand()<.5 ? "eumm" : "mb";
+    }
     if (lc($prefer_installer) eq "mb") {
         $self->{modulebuild} = 1;
+    } elsif ($self->{archived} eq "patch") {
+        # not an edge case, nothing to install for sure
+        my $why = "A patch file cannot be installed";
+        $CPAN::Frontend->mywarn("Refusing to handle this file: $why\n");
+        $self->{writemakefile} = CPAN::Distrostatus->new("NO $why");
     } elsif (! $mpl_exists) {
-        $self->debug(sprintf("makefilepl[%s]anycwd[%s]",
-                             $mpl,
-                             CPAN::anycwd(),
-                            )) if $CPAN::DEBUG;
-        my($configure) = File::Spec->catfile($packagedir,"Configure");
-        if (-f $configure) {
-            # do we have anything to do?
-            $self->{'configure'} = $configure;
-        } elsif (-f File::Spec->catfile($packagedir,"Makefile")) {
-            $CPAN::Frontend->mywarn(qq{
+        $self->_edge_cases($mpl,$local_file);
+    }
+    if ($self->{build_dir}
+        &&
+        $CPAN::Config->{build_dir_reuse}
+       ) {
+        $self->store_persistent_state;
+    }
+    return $self;
+}
+
+#-> CPAN::Distribution::store_persistent_state
+sub store_persistent_state {
+    my($self) = @_;
+    my $dir = $self->{build_dir};
+    unless (File::Spec->canonpath(File::Basename::dirname($dir))
+            eq File::Spec->canonpath($CPAN::Config->{build_dir})) {
+        $CPAN::Frontend->mywarn("Directory '$dir' not below $CPAN::Config->{build_dir}, ".
+                                "will not store persistent state\n");
+        return;
+    }
+    my $file = sprintf "%s.yml", $dir;
+    my $yaml_module = CPAN::_yaml_module;
+    if ($CPAN::META->has_inst($yaml_module)) {
+        CPAN->_yaml_dumpfile(
+                             $file,
+                             {
+                              time => time,
+                              perl => CPAN::_perl_fingerprint,
+                              distribution => $self,
+                             }
+                            );
+    } else {
+        $CPAN::Frontend->myprint("Warning (usually harmless): '$yaml_module' not installed, ".
+                                "will not store persistent state\n");
+    }
+}
+
+#-> CPAN::Distribution::patch
+sub try_download {
+    my($self,$patch) = @_;
+    my $norm = $self->normalize($patch);
+    my($local_wanted) =
+        File::Spec->catfile(
+                            $CPAN::Config->{keep_source_where},
+                            "authors",
+                            "id",
+                            split(/\//,$norm),
+                           );
+    $self->debug("Doing localize") if $CPAN::DEBUG;
+    return CPAN::FTP->localize("authors/id/$norm",
+                               $local_wanted);
+}
+
+{
+    my $stdpatchargs = "";
+    #-> CPAN::Distribution::patch
+    sub patch {
+        my($self) = @_;
+        $self->debug("checking patches id[$self->{ID}]") if $CPAN::DEBUG;
+        my $patches = $self->prefs->{patches};
+        $patches ||= "";
+        $self->debug("patches[$patches]") if $CPAN::DEBUG;
+        if ($patches) {
+            return unless @$patches;
+            $self->safe_chdir($self->{build_dir});
+            CPAN->debug("patches[$patches]") if $CPAN::DEBUG;
+            my $patchbin = $CPAN::Config->{patch};
+            unless ($patchbin && length $patchbin) {
+                $CPAN::Frontend->mydie("No external patch command configured\n\n".
+                                       "Please run 'o conf init /patch/'\n\n");
+            }
+            unless (MM->maybe_command($patchbin)) {
+                $CPAN::Frontend->mydie("No external patch command available\n\n".
+                                       "Please run 'o conf init /patch/'\n\n");
+            }
+            $patchbin = CPAN::HandleConfig->safe_quote($patchbin);
+            local $ENV{PATCH_GET} = 0; # formerly known as -g0
+            unless ($stdpatchargs) {
+                my $system = "$patchbin --version |";
+                local *FH;
+                open FH, $system or die "Could not fork '$system': $!";
+                local $/ = "\n";
+                my $pversion;
+              PARSEVERSION: while (<FH>) {
+                    if (/^patch\s+([\d\.]+)/) {
+                        $pversion = $1;
+                        last PARSEVERSION;
+                    }
+                }
+                if ($pversion) {
+                    $stdpatchargs = "-N --fuzz=3";
+                } else {
+                    $stdpatchargs = "-N";
+                }
+            }
+            my $countedpatches = @$patches == 1 ? "1 patch" : (scalar @$patches . " patches");
+            $CPAN::Frontend->myprint("Going to apply $countedpatches:\n");
+            for my $patch (@$patches) {
+                unless (-f $patch) {
+                    if (my $trydl = $self->try_download($patch)) {
+                        $patch = $trydl;
+                    } else {
+                        my $fail = "Could not find patch '$patch'";
+                        $CPAN::Frontend->mywarn("$fail; cannot continue\n");
+                        $self->{unwrapped} = CPAN::Distrostatus->new("NO -- $fail");
+                        delete $self->{build_dir};
+                        return;
+                    }
+                }
+                $CPAN::Frontend->myprint("  $patch\n");
+                my $readfh = CPAN::Tarzip->TIEHANDLE($patch);
+
+                my $pcommand;
+                my $ppp = $self->_patch_p_parameter($readfh);
+                if ($ppp eq "applypatch") {
+                    $pcommand = "$CPAN::Config->{applypatch} -verbose";
+                } else {
+                    my $thispatchargs = join " ", $stdpatchargs, $ppp;
+                    $pcommand = "$patchbin $thispatchargs";
+                }
+
+                $readfh = CPAN::Tarzip->TIEHANDLE($patch); # open again
+                my $writefh = FileHandle->new;
+                $CPAN::Frontend->myprint("  $pcommand\n");
+                unless (open $writefh, "|$pcommand") {
+                    my $fail = "Could not fork '$pcommand'";
+                    $CPAN::Frontend->mywarn("$fail; cannot continue\n");
+                    $self->{unwrapped} = CPAN::Distrostatus->new("NO -- $fail");
+                    delete $self->{build_dir};
+                    return;
+                }
+                while (my $x = $readfh->READLINE) {
+                    print $writefh $x;
+                }
+                unless (close $writefh) {
+                    my $fail = "Could not apply patch '$patch'";
+                    $CPAN::Frontend->mywarn("$fail; cannot continue\n");
+                    $self->{unwrapped} = CPAN::Distrostatus->new("NO -- $fail");
+                    delete $self->{build_dir};
+                    return;
+                }
+            }
+            $self->{patched}++;
+        }
+        return 1;
+    }
+}
+
+sub _patch_p_parameter {
+    my($self,$fh) = @_;
+    my $cnt_files   = 0;
+    my $cnt_p0files = 0;
+    local($_);
+    while ($_ = $fh->READLINE) {
+        if (
+            $CPAN::Config->{applypatch}
+            &&
+            /\#\#\#\# ApplyPatch data follows \#\#\#\#/
+           ) {
+            return "applypatch"
+        }
+        next unless /^[\*\+]{3}\s(\S+)/;
+        my $file = $1;
+        $cnt_files++;
+        $cnt_p0files++ if -f $file;
+        CPAN->debug("file[$file]cnt_files[$cnt_files]cnt_p0files[$cnt_p0files]")
+            if $CPAN::DEBUG;
+    }
+    return "-p1" unless $cnt_files;
+    return $cnt_files==$cnt_p0files ? "-p0" : "-p1";
+}
+
+#-> sub CPAN::Distribution::_edge_cases
+# with "configure" or "Makefile" or single file scripts
+sub _edge_cases {
+    my($self,$mpl,$local_file) = @_;
+    $self->debug(sprintf("makefilepl[%s]anycwd[%s]",
+                         $mpl,
+                         CPAN::anycwd(),
+                        )) if $CPAN::DEBUG;
+    my $build_dir = $self->{build_dir};
+    my($configure) = File::Spec->catfile($build_dir,"Configure");
+    if (-f $configure) {
+        # do we have anything to do?
+        $self->{configure} = $configure;
+    } elsif (-f File::Spec->catfile($build_dir,"Makefile")) {
+        $CPAN::Frontend->mywarn(qq{
 Package comes with a Makefile and without a Makefile.PL.
 We\'ll try to build it with that Makefile then.
 });
-            $self->{writemakefile} = CPAN::Distrostatus->new("YES");
-            $CPAN::Frontend->mysleep(2);
-        } else {
-            my $cf = $self->called_for || "unknown";
-            if ($cf =~ m|/|) {
-                $cf =~ s|.*/||;
-                $cf =~ s|\W.*||;
-            }
-            $cf =~ s|[/\\:]||g; # risk of filesystem damage
-            $cf = "unknown" unless length($cf);
-            $CPAN::Frontend->mywarn(qq{Package seems to come without Makefile.PL.
+        $self->{writemakefile} = CPAN::Distrostatus->new("YES");
+        $CPAN::Frontend->mysleep(2);
+    } else {
+        my $cf = $self->called_for || "unknown";
+        if ($cf =~ m|/|) {
+            $cf =~ s|.*/||;
+            $cf =~ s|\W.*||;
+        }
+        $cf =~ s|[/\\:]||g;     # risk of filesystem damage
+        $cf = "unknown" unless length($cf);
+        $CPAN::Frontend->mywarn(qq{Package seems to come without Makefile.PL.
   (The test -f "$mpl" returned false.)
   Writing one on our own (setting NAME to $cf)\a\n});
-            $self->{had_no_makefile_pl}++;
-            $CPAN::Frontend->mysleep(3);
-
-            # Writing our own Makefile.PL
-
-           my $script = "";
-           if ($self->{archived} eq "maybe_pl"){
-               my $fh = FileHandle->new;
-               my $script_file = File::Spec->catfile($packagedir,$local_file);
-               $fh->open($script_file)
-                 or Carp::croak("Could not open $script_file: $!");
-               local $/ = "\n";
-               # name parsen und prereq
-               my($state) = "poddir";
-               my($name, $prereq) = ("", "");
-               while (<$fh>){
-                   if ($state eq "poddir" && /^=head\d\s+(\S+)/) {
-                       if ($1 eq 'NAME') {
-                           $state = "name";
-                       } elsif ($1 eq 'PREREQUISITES') {
-                           $state = "prereq";
-                       }
-                   } elsif ($state =~ m{^(name|prereq)$}) {
-                       if (/^=/) {
-                           $state = "poddir";
-                       } elsif (/^\s*$/) {
-                           # nop
-                       } elsif ($state eq "name") {
-                           if ($name eq "") {
-                               ($name) = /^(\S+)/;
-                               $state = "poddir";
-                           }
-                       } elsif ($state eq "prereq") {
-                           $prereq .= $_;
-                       }
-                   } elsif (/^=cut\b/) {
-                       last;
-                   }
-               }
-               $fh->close;
-
-                for ($name) {
-                   s{.*<}{}; # strip X<...>
-                   s{>.*}{};
-                }
-               chomp $prereq;
-                $prereq = join " ", split /\s+/, $prereq;
-               my($PREREQ_PM) = join("\n", map {
-                   s{.*<}{}; # strip X<...>
-                   s{>.*}{};
-                    if (/[\s\'\"]/) { # prose?
-                    } else {
-                        s/[^\w:]$//; # period?
-                        " "x28 . "'$_' => 0,";
+        $self->{had_no_makefile_pl}++;
+        $CPAN::Frontend->mysleep(3);
+
+        # Writing our own Makefile.PL
+
+        my $script = "";
+        if ($self->{archived} eq "maybe_pl") {
+            my $fh = FileHandle->new;
+            my $script_file = File::Spec->catfile($build_dir,$local_file);
+            $fh->open($script_file)
+                or Carp::croak("Could not open script '$script_file': $!");
+            local $/ = "\n";
+            # name parsen und prereq
+            my($state) = "poddir";
+            my($name, $prereq) = ("", "");
+            while (<$fh>) {
+                if ($state eq "poddir" && /^=head\d\s+(\S+)/) {
+                    if ($1 eq 'NAME') {
+                        $state = "name";
+                    } elsif ($1 eq 'PREREQUISITES') {
+                        $state = "prereq";
+                    }
+                } elsif ($state =~ m{^(name|prereq)$}) {
+                    if (/^=/) {
+                        $state = "poddir";
+                    } elsif (/^\s*$/) {
+                        # nop
+                    } elsif ($state eq "name") {
+                        if ($name eq "") {
+                            ($name) = /^(\S+)/;
+                            $state = "poddir";
+                        }
+                    } elsif ($state eq "prereq") {
+                        $prereq .= $_;
                     }
-               } split /\s*,\s*/, $prereq);
+                } elsif (/^=cut\b/) {
+                    last;
+                }
+            }
+            $fh->close;
+
+            for ($name) {
+                s{.*<}{};       # strip X<...>
+                s{>.*}{};
+            }
+            chomp $prereq;
+            $prereq = join " ", split /\s+/, $prereq;
+            my($PREREQ_PM) = join("\n", map {
+                s{.*<}{};       # strip X<...>
+                s{>.*}{};
+                if (/[\s\'\"]/) { # prose?
+                } else {
+                    s/[^\w:]$//; # period?
+                    " "x28 . "'$_' => 0,";
+                }
+            } split /\s*,\s*/, $prereq);
 
-               $script = "
+            $script = "
               EXE_FILES => ['$name'],
               PREREQ_PM => {
 $PREREQ_PM
                            },
 ";
+            if ($name) {
+                my $to_file = File::Spec->catfile($build_dir, $name);
+                rename $script_file, $to_file
+                    or die "Can't rename $script_file to $to_file: $!";
+            }
+        }
 
-               my $to_file = File::Spec->catfile($packagedir, $name);
-               rename $script_file, $to_file
-                 or die "Can't rename $script_file to $to_file: $!";
-           }
-
-            my $fh = FileHandle->new;
-            $fh->open(">$mpl")
-                or Carp::croak("Could not open >$mpl: $!");
-            $fh->print(
-qq{# This Makefile.PL has been autogenerated by the module CPAN.pm
+        my $fh = FileHandle->new;
+        $fh->open(">$mpl")
+            or Carp::croak("Could not open >$mpl: $!");
+        $fh->print(
+                   qq{# This Makefile.PL has been autogenerated by the module CPAN.pm
 # because there was no Makefile.PL supplied.
 # Autogenerated on: }.scalar localtime().qq{
 
@@ -5021,21 +6724,66 @@ WriteMakefile(
               NAME => q[$cf],$script
              );
 });
-            $fh->close;
-        }
+        $fh->close;
     }
+}
 
-    return $self;
+#-> CPAN::Distribution::_signature_business
+sub _signature_business {
+    my($self) = @_;
+    my $check_sigs = CPAN::HandleConfig->prefs_lookup($self,
+                                                      q{check_sigs});
+    if ($check_sigs) {
+        if ($CPAN::META->has_inst("Module::Signature")) {
+            if (-f "SIGNATURE") {
+                $self->debug("Module::Signature is installed, verifying") if $CPAN::DEBUG;
+                my $rv = Module::Signature::verify();
+                if ($rv != Module::Signature::SIGNATURE_OK() and
+                    $rv != Module::Signature::SIGNATURE_MISSING()) {
+                    $CPAN::Frontend->mywarn(
+                                            qq{\nSignature invalid for }.
+                                            qq{distribution file. }.
+                                            qq{Please investigate.\n\n}
+                                           );
+
+                    my $wrap =
+                        sprintf(qq{I'd recommend removing %s. Some error occured    }.
+                                qq{while checking its signature, so it could        }.
+                                qq{be invalid. Maybe you have configured            }.
+                                qq{your 'urllist' with a bad URL. Please check this }.
+                                qq{array with 'o conf urllist' and retry. Or        }.
+                                qq{examine the distribution in a subshell. Try
+  look %s
+and run
+  cpansign -v
+},
+                                $self->{localfile},
+                                $self->pretty_id,
+                               );
+                    $self->{signature_verify} = CPAN::Distrostatus->new("NO");
+                    $CPAN::Frontend->mywarn(Text::Wrap::wrap("","",$wrap));
+                    $CPAN::Frontend->mysleep(5) if $CPAN::Frontend->can("mysleep");
+                } else {
+                    $self->{signature_verify} = CPAN::Distrostatus->new("YES");
+                    $self->debug("Module::Signature has verified") if $CPAN::DEBUG;
+                }
+            } else {
+                $CPAN::Frontend->mywarn(qq{Package came without SIGNATURE\n\n});
+            }
+        } else {
+            $self->debug("Module::Signature is NOT installed") if $CPAN::DEBUG;
+        }
+    }
 }
 
-# CPAN::Distribution::untar_me ;
+#-> CPAN::Distribution::untar_me ;
 sub untar_me {
     my($self,$ct) = @_;
     $self->{archived} = "tar";
     if ($ct->untar()) {
-       $self->{unwrapped} = "YES";
+        $self->{unwrapped} = CPAN::Distrostatus->new("YES");
     } else {
-       $self->{unwrapped} = "NO";
+        $self->{unwrapped} = CPAN::Distrostatus->new("NO -- untar failed");
     }
 }
 
@@ -5044,9 +6792,9 @@ sub unzip_me {
     my($self,$ct) = @_;
     $self->{archived} = "zip";
     if ($ct->unzip()) {
-       $self->{unwrapped} = "YES";
+        $self->{unwrapped} = CPAN::Distrostatus->new("YES");
     } else {
-       $self->{unwrapped} = "NO";
+        $self->{unwrapped} = CPAN::Distrostatus->new("NO -- unzip failed");
     }
     return;
 }
@@ -5054,22 +6802,27 @@ sub unzip_me {
 sub handle_singlefile {
     my($self,$local_file) = @_;
 
-    if ( $local_file =~ /\.pm(\.(gz|Z))?(?!\n)\Z/ ){
-       $self->{archived} = "pm";
+    if ( $local_file =~ /\.pm(\.(gz|Z))?(?!\n)\Z/ ) {
+        $self->{archived} = "pm";
+    } elsif ( $local_file =~ /\.patch(\.(gz|bz2))?(?!\n)\Z/ ) {
+        $self->{archived} = "patch";
     } else {
-       $self->{archived} = "maybe_pl";
+        $self->{archived} = "maybe_pl";
     }
 
     my $to = File::Basename::basename($local_file);
     if ($to =~ s/\.(gz|Z)(?!\n)\Z//) {
-        if (CPAN::Tarzip->new($local_file)->gunzip($to)) {
-            $self->{unwrapped} = "YES";
+        if (eval{CPAN::Tarzip->new($local_file)->gunzip($to)}) {
+            $self->{unwrapped} = CPAN::Distrostatus->new("YES");
         } else {
-            $self->{unwrapped} = "NO";
+            $self->{unwrapped} = CPAN::Distrostatus->new("NO -- uncompressing failed");
         }
     } else {
-        File::Copy::cp($local_file,".");
-        $self->{unwrapped} = "YES";
+        if (File::Copy::cp($local_file,".")) {
+            $self->{unwrapped} = CPAN::Distrostatus->new("YES");
+        } else {
+            $self->{unwrapped} = CPAN::Distrostatus->new("NO -- copying failed");
+        }
     }
     return $to;
 }
@@ -5094,15 +6847,15 @@ sub look {
     }
 
     if (  $CPAN::Config->{'shell'} ) {
-       $CPAN::Frontend->myprint(qq{
+        $CPAN::Frontend->myprint(qq{
 Trying to open a subshell in the build directory...
 });
     } else {
-       $CPAN::Frontend->myprint(qq{
+        $CPAN::Frontend->myprint(qq{
 Your configuration does not define a value for subshells.
 Please define it with "o conf shell <your shell>"
 });
-       return;
+        return;
     }
     my $dist = $self->id;
     my $dir;
@@ -5110,22 +6863,22 @@ Please define it with "o conf shell <your shell>"
         $self->get;
     }
     unless ($dir ||= $self->dir) {
-       $CPAN::Frontend->mywarn(qq{
+        $CPAN::Frontend->mywarn(qq{
 Could not determine which directory to use for looking at $dist.
 });
-       return;
+        return;
     }
     my $pwd  = CPAN::anycwd();
     $self->safe_chdir($dir);
     $CPAN::Frontend->myprint(qq{Working directory is $dir\n});
     {
-       local $ENV{CPAN_SHELL_LEVEL} = $ENV{CPAN_SHELL_LEVEL}||0;
+        local $ENV{CPAN_SHELL_LEVEL} = $ENV{CPAN_SHELL_LEVEL}||0;
         $ENV{CPAN_SHELL_LEVEL} += 1;
-       my $shell = CPAN::HandleConfig->safe_quote($CPAN::Config->{'shell'});
-       unless (system($shell) == 0) {
-           my $code = $? >> 8;
-           $CPAN::Frontend->mywarn("Subprocess shell exit code $code\n");
-       }
+        my $shell = CPAN::HandleConfig->safe_quote($CPAN::Config->{'shell'});
+        unless (system($shell) == 0) {
+            my $code = $? >> 8;
+            $CPAN::Frontend->mywarn("Subprocess shell exit code $code\n");
+        }
     }
     $self->safe_chdir($pwd);
 }
@@ -5144,18 +6897,18 @@ sub cvs_import {
 
     my $cvs_dir = (split /\//, $dir)[-1];
     $cvs_dir =~ s/-\d+[^-]+(?!\n)\Z//;
-    my $cvs_root = 
+    my $cvs_root =
       $CPAN::Config->{cvsroot} || $ENV{CVSROOT};
-    my $cvs_site_perl = 
+    my $cvs_site_perl =
       $CPAN::Config->{cvs_site_perl} || $ENV{CVS_SITE_PERL};
     if ($cvs_site_perl) {
-       $cvs_dir = "$cvs_site_perl/$cvs_dir";
+        $cvs_dir = "$cvs_site_perl/$cvs_dir";
     }
     my $cvs_log = qq{"imported $package $version sources"};
     $version =~ s/\./_/g;
     # XXX cvs: undocumented and unclear how it was meant to work
     my @cmd = ('cvs', '-d', $cvs_root, 'import', '-m', $cvs_log,
-              "$cvs_dir", $userid, "v$version");
+               "$cvs_dir", $userid, "v$version");
 
     my $pwd  = CPAN::anycwd();
     chdir($dir) or $CPAN::Frontend->mydie(qq{Could not chdir to "$dir": $!});
@@ -5165,7 +6918,7 @@ sub cvs_import {
     $CPAN::Frontend->myprint(qq{@cmd\n});
     system(@cmd) == 0 or
     # XXX cvs
-       $CPAN::Frontend->mydie("cvs import failed");
+        $CPAN::Frontend->mydie("cvs import failed");
     chdir($pwd) or $CPAN::Frontend->mydie(qq{Could not chdir to "$pwd": $!});
 }
 
@@ -5177,16 +6930,16 @@ sub readme {
     $self->debug("sans[$sans] suffix[$suffix]\n") if $CPAN::DEBUG;
     my($local_file);
     my($local_wanted) =
-        File::Spec->catfile(
-                            $CPAN::Config->{keep_source_where},
-                            "authors",
-                            "id",
-                            split(/\//,"$sans.readme"),
-                           );
+        File::Spec->catfile(
+                            $CPAN::Config->{keep_source_where},
+                            "authors",
+                            "id",
+                            split(/\//,"$sans.readme"),
+                           );
     $self->debug("Doing localize") if $CPAN::DEBUG;
     $local_file = CPAN::FTP->localize("authors/id/$sans.readme",
-                                     $local_wanted)
-       or $CPAN::Frontend->mydie(qq{No $sans.readme found});;
+                                      $local_wanted)
+        or $CPAN::Frontend->mydie(qq{No $sans.readme found});;
 
     if ($^O eq 'MacOS') {
         Mac::BuildTools::launch_file($local_file);
@@ -5197,10 +6950,10 @@ sub readme {
     local($SIG{PIPE}) = "IGNORE";
     my $pager = $CPAN::Config->{'pager'} || "cat";
     $fh_pager->open("|$pager")
-       or die "Could not open pager $pager\: $!";
+        or die "Could not open pager $pager\: $!";
     my $fh_readme = FileHandle->new;
     $fh_readme->open($local_file)
-       or $CPAN::Frontend->mydie(qq{Could not open "$local_file": $!});
+        or $CPAN::Frontend->mydie(qq{Could not open "$local_file": $!});
     $CPAN::Frontend->myprint(qq{
 Displaying file
   $local_file
@@ -5214,18 +6967,18 @@ with pager "$pager"
 sub verifyCHECKSUM {
     my($self) = @_;
   EXCUSE: {
-       my @e;
-       $self->{CHECKSUM_STATUS} ||= "";
-       $self->{CHECKSUM_STATUS} eq "OK" and push @e, "Checksum was ok";
-       $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        my @e;
+        $self->{CHECKSUM_STATUS} ||= "";
+        $self->{CHECKSUM_STATUS} eq "OK" and push @e, "Checksum was ok";
+        $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
     }
     my($lc_want,$lc_file,@local,$basename);
     @local = split(/\//,$self->id);
     pop @local;
     push @local, "CHECKSUMS";
     $lc_want =
-       File::Spec->catfile($CPAN::Config->{keep_source_where},
-                           "authors", "id", @local);
+        File::Spec->catfile($CPAN::Config->{keep_source_where},
+                            "authors", "id", @local);
     local($") = "/";
     if (my $size = -s $lc_want) {
         $self->debug("lc_want[$lc_want]size[$size]") if $CPAN::DEBUG;
@@ -5234,18 +6987,18 @@ sub verifyCHECKSUM {
         }
     }
     $lc_file = CPAN::FTP->localize("authors/id/@local",
-                                  $lc_want,1);
+                                   $lc_want,1);
     unless ($lc_file) {
         $CPAN::Frontend->myprint("Trying $lc_want.gz\n");
-       $local[-1] .= ".gz";
-       $lc_file = CPAN::FTP->localize("authors/id/@local",
-                                      "$lc_want.gz",1);
-       if ($lc_file) {
-           $lc_file =~ s/\.gz(?!\n)\Z//;
-           CPAN::Tarzip->new("$lc_file.gz")->gunzip($lc_file);
-       } else {
-           return;
-       }
+        $local[-1] .= ".gz";
+        $lc_file = CPAN::FTP->localize("authors/id/@local",
+                                       "$lc_want.gz",1);
+        if ($lc_file) {
+            $lc_file =~ s/\.gz(?!\n)\Z//;
+            eval{CPAN::Tarzip->new("$lc_file.gz")->gunzip($lc_file)};
+        } else {
+            return;
+        }
     }
     if ($self->CHECKSUM_check_file($lc_file)) {
         return $self->{CHECKSUM_STATUS} = "OK";
@@ -5258,24 +7011,24 @@ sub SIG_check_file {
     my $rv = eval { Module::Signature::_verify($chk_file) };
 
     if ($rv == Module::Signature::SIGNATURE_OK()) {
-       $CPAN::Frontend->myprint("Signature for $chk_file ok\n");
-       return $self->{SIG_STATUS} = "OK";
+        $CPAN::Frontend->myprint("Signature for $chk_file ok\n");
+        return $self->{SIG_STATUS} = "OK";
     } else {
-       $CPAN::Frontend->myprint(qq{\nSignature invalid for }.
-                                qq{distribution file. }.
-                                qq{Please investigate.\n\n}.
-                                $self->as_string,
-                               $CPAN::META->instance(
-                                                       'CPAN::Author',
-                                                       $self->cpan_userid
-                                                       )->as_string);
-
-       my $wrap = qq{I\'d recommend removing $chk_file. Its signature
+        $CPAN::Frontend->myprint(qq{\nSignature invalid for }.
+                                 qq{distribution file. }.
+                                 qq{Please investigate.\n\n}.
+                                 $self->as_string,
+                                 $CPAN::META->instance(
+                                                       'CPAN::Author',
+                                                       $self->cpan_userid
+                                                      )->as_string);
+
+        my $wrap = qq{I\'d recommend removing $chk_file. Its signature
 is invalid. Maybe you have configured your 'urllist' with
 a bad URL. Please check this array with 'o conf urllist', and
 retry.};
 
-       $CPAN::Frontend->mydie(Text::Wrap::wrap("","",$wrap));
+        $CPAN::Frontend->mydie(Text::Wrap::wrap("","",$wrap));
     }
 }
 
@@ -5290,31 +7043,33 @@ sub CHECKSUM_check_file {
 
     $sloppy ||= 0;
     $self->debug("chk_file[$chk_file]sloppy[$sloppy]") if $CPAN::DEBUG;
-    if ($CPAN::Config->{check_sigs}) {
-        if ($CPAN::META->has_inst("Module::Signature") and Module::Signature->VERSION >= 0.26) {
-            $self->debug("Module::Signature is installed, verifying");
+    my $check_sigs = CPAN::HandleConfig->prefs_lookup($self,
+                                                      q{check_sigs});
+    if ($check_sigs) {
+        if ($CPAN::META->has_inst("Module::Signature")) {
+            $self->debug("Module::Signature is installed, verifying") if $CPAN::DEBUG;
             $self->SIG_check_file($chk_file);
         } else {
-            $self->debug("Module::Signature is NOT installed");
+            $self->debug("Module::Signature is NOT installed") if $CPAN::DEBUG;
         }
     }
 
     $file = $self->{localfile};
     $basename = File::Basename::basename($file);
     my $fh = FileHandle->new;
-    if (open $fh, $chk_file){
-       local($/);
-       my $eval = <$fh>;
-       $eval =~ s/\015?\012/\n/g;
-       close $fh;
-       my($comp) = Safe->new();
-       $cksum = $comp->reval($eval);
-       if ($@) {
-           rename $chk_file, "$chk_file.bad";
-           Carp::confess($@) if $@;
-       }
+    if (open $fh, $chk_file) {
+        local($/);
+        my $eval = <$fh>;
+        $eval =~ s/\015?\012/\n/g;
+        close $fh;
+        my($comp) = Safe->new();
+        $cksum = $comp->reval($eval);
+        if ($@) {
+            rename $chk_file, "$chk_file.bad";
+            Carp::confess($@) if $@;
+        }
     } else {
-       Carp::carp "Could not open $chk_file for reading";
+        Carp::carp "Could not open $chk_file for reading";
     }
 
     if (! ref $cksum or ref $cksum ne "HASH") {
@@ -5329,40 +7084,40 @@ for further processing, but got garbage instead.
         $self->{CHECKSUM_STATUS} = "NIL -- CHECKSUMS file broken";
         return;
     } elsif (exists $cksum->{$basename}{sha256}) {
-       $self->debug("Found checksum for $basename:" .
-                    "$cksum->{$basename}{sha256}\n") if $CPAN::DEBUG;
-
-       open($fh, $file);
-       binmode $fh;
-       my $eq = $self->eq_CHECKSUM($fh,$cksum->{$basename}{sha256});
-       $fh->close;
-       $fh = CPAN::Tarzip->TIEHANDLE($file);
-
-       unless ($eq) {
-         my $dg = Digest::SHA->new(256);
-         my($data,$ref);
-         $ref = \$data;
-         while ($fh->READ($ref, 4096) > 0){
-           $dg->add($data);
-         }
-         my $hexdigest = $dg->hexdigest;
-         $eq += $hexdigest eq $cksum->{$basename}{'sha256-ungz'};
-       }
-
-       if ($eq) {
-         $CPAN::Frontend->myprint("Checksum for $file ok\n");
-         return $self->{CHECKSUM_STATUS} = "OK";
-       } else {
-           $CPAN::Frontend->myprint(qq{\nChecksum mismatch for }.
-                                    qq{distribution file. }.
-                                    qq{Please investigate.\n\n}.
-                                    $self->as_string,
-                                    $CPAN::META->instance(
-                                                          'CPAN::Author',
-                                                          $self->cpan_userid
-                                                         )->as_string);
-
-           my $wrap = qq{I\'d recommend removing $file. Its
+        $self->debug("Found checksum for $basename:" .
+                     "$cksum->{$basename}{sha256}\n") if $CPAN::DEBUG;
+
+        open($fh, $file);
+        binmode $fh;
+        my $eq = $self->eq_CHECKSUM($fh,$cksum->{$basename}{sha256});
+        $fh->close;
+        $fh = CPAN::Tarzip->TIEHANDLE($file);
+
+        unless ($eq) {
+            my $dg = Digest::SHA->new(256);
+            my($data,$ref);
+            $ref = \$data;
+            while ($fh->READ($ref, 4096) > 0) {
+                $dg->add($data);
+            }
+            my $hexdigest = $dg->hexdigest;
+            $eq += $hexdigest eq $cksum->{$basename}{'sha256-ungz'};
+        }
+
+        if ($eq) {
+            $CPAN::Frontend->myprint("Checksum for $file ok\n");
+            return $self->{CHECKSUM_STATUS} = "OK";
+        } else {
+            $CPAN::Frontend->myprint(qq{\nChecksum mismatch for }.
+                                     qq{distribution file. }.
+                                     qq{Please investigate.\n\n}.
+                                     $self->as_string,
+                                     $CPAN::META->instance(
+                                                           'CPAN::Author',
+                                                           $self->cpan_userid
+                                                          )->as_string);
+
+            my $wrap = qq{I\'d recommend removing $file. Its
 checksum is incorrect. Maybe you have configured your 'urllist' with
 a bad URL. Please check this array with 'o conf urllist', and
 retry.};
@@ -5372,15 +7127,15 @@ retry.};
             # former versions just returned here but this seems a
             # serious threat that deserves a die
 
-           # $CPAN::Frontend->myprint("\n\n");
-           # sleep 3;
-           # return;
-       }
-       # close $fh if fileno($fh);
+            # $CPAN::Frontend->myprint("\n\n");
+            # sleep 3;
+            # return;
+        }
+        # close $fh if fileno($fh);
     } else {
         return if $sloppy;
-       unless ($self->{CHECKSUM_STATUS}) {
-           $CPAN::Frontend->mywarn(qq{
+        unless ($self->{CHECKSUM_STATUS}) {
+            $CPAN::Frontend->mywarn(qq{
 Warning: No checksum for $basename in $chk_file.
 
 The cause for this may be that the file is very new and the checksum
@@ -5389,9 +7144,9 @@ going awry right now.
 });
             my $answer = CPAN::Shell::colorable_makemaker_prompt("Proceed?", "yes");
             $answer =~ /^\s*y/i or $CPAN::Frontend->mydie("Aborted.\n");
-       }
+        }
         $self->{CHECKSUM_STATUS} = "NIL -- distro not in CHECKSUMS file";
-       return;
+        return;
     }
 }
 
@@ -5401,7 +7156,7 @@ sub eq_CHECKSUM {
     if ($CPAN::META->has_inst("Digest::SHA")) {
         my $dg = Digest::SHA->new(256);
         my($data);
-        while (read($fh, $data, 4096)){
+        while (read($fh, $data, 4096)) {
             $dg->add($data);
         }
         my $hexdigest = $dg->hexdigest;
@@ -5425,49 +7180,104 @@ sub eq_CHECKSUM {
 
 # "Force get forgets previous error conditions"
 
+#-> sub CPAN::Distribution::fforce ;
+sub fforce {
+  my($self, $method) = @_;
+  $self->force($method,1);
+}
+
 #-> sub CPAN::Distribution::force ;
 sub force {
-  my($self, $method) = @_;
-  for my $att (qw(
-                  CHECKSUM_STATUS
-                  archived
-                  build_dir
-                  install
-                  localfile
-                  make
-                  make_test
-                  modulebuild
-                  prereq_pm
-                  prereq_pm_detected
-                  signature_verify
-                  unwrapped
-                  writemakefile
-                  yaml_content
- )) {
-    delete $self->{$att};
-    CPAN->debug(sprintf "att[%s]", $att) if $CPAN::DEBUG;
+  my($self, $method,$fforce) = @_;
+  my %phase_map = (
+                   get => [
+                           "unwrapped",
+                           "build_dir",
+                           "archived",
+                           "localfile",
+                           "CHECKSUM_STATUS",
+                           "signature_verify",
+                           "prefs",
+                           "prefs_file",
+                           "prefs_file_doc",
+                          ],
+                   make => [
+                            "writemakefile",
+                            "make",
+                            "modulebuild",
+                            "prereq_pm",
+                            "prereq_pm_detected",
+                           ],
+                   test => [
+                            "badtestcnt",
+                            "make_test",
+                           ],
+                   install => [
+                               "install",
+                              ],
+                   unknown => [
+                               "reqtype",
+                               "yaml_content",
+                              ],
+                  );
+  my $methodmatch = 0;
+  my $ldebug = 0;
+ PHASE: for my $phase (qw(unknown get make test install)) { # order matters
+      $methodmatch = 1 if $fforce || $phase eq $method;
+      next unless $methodmatch;
+    ATTRIBUTE: for my $att (@{$phase_map{$phase}}) {
+          if ($phase eq "get") {
+              if (substr($self->id,-1,1) eq "."
+                  && $att =~ /(unwrapped|build_dir|archived)/ ) {
+                  # cannot be undone for local distros
+                  next ATTRIBUTE;
+              }
+              if ($att eq "build_dir"
+                  && $self->{build_dir}
+                  && $CPAN::META->{is_tested}
+                 ) {
+                  delete $CPAN::META->{is_tested}{$self->{build_dir}};
+              }
+          } elsif ($phase eq "test") {
+              if ($att eq "make_test"
+                  && $self->{make_test}
+                  && $self->{make_test}{COMMANDID}
+                  && $self->{make_test}{COMMANDID} == $CPAN::CurrentCommandId
+                 ) {
+                  # endless loop too likely
+                  next ATTRIBUTE;
+              }
+          }
+          delete $self->{$att};
+          if ($ldebug || $CPAN::DEBUG) {
+              # local $CPAN::DEBUG = 16; # Distribution
+              CPAN->debug(sprintf "id[%s]phase[%s]att[%s]", $self->id, $phase, $att);
+          }
+      }
   }
   if ($method && $method =~ /make|test|install/) {
-    $self->{"force_update"}++; # name should probably have been force_install
+    $self->{force_update} = 1; # name should probably have been force_install
   }
 }
 
+#-> sub CPAN::Distribution::notest ;
 sub notest {
   my($self, $method) = @_;
-  # warn "XDEBUG: set notest for $self $method";
+  # $CPAN::Frontend->mywarn("XDEBUG: set notest for $self $method");
   $self->{"notest"}++; # name should probably have been force_install
 }
 
+#-> sub CPAN::Distribution::unnotest ;
 sub unnotest {
   my($self) = @_;
   # warn "XDEBUG: deleting notest";
-  delete $self->{'notest'};
+  delete $self->{notest};
 }
 
 #-> sub CPAN::Distribution::unforce ;
 sub unforce {
   my($self) = @_;
-  delete $self->{'force_update'};
+  delete $self->{force_update};
 }
 
 #-> sub CPAN::Distribution::isa_perl ;
@@ -5476,20 +7286,20 @@ sub isa_perl {
   my $file = File::Basename::basename($self->id);
   if ($file =~ m{ ^ perl
                   -?
-                 (5)
-                 ([._-])
-                 (
+                  (5)
+                  ([._-])
+                  (
                    \d{3}(_[0-4][0-9])?
                    |
                    \d+\.\d+
                   )
-                 \.tar[._-]gz
-                 (?!\n)\Z
-               }xs){
+                  \.tar[._-](?:gz|bz2)
+                  (?!\n)\Z
+                }xs) {
     return "$1.$3";
   } elsif ($self->cpan_comment
            &&
-           $self->cpan_comment =~ /isa_perl\(.+?\)/){
+           $self->cpan_comment =~ /isa_perl\(.+?\)/) {
     return $1;
   }
 }
@@ -5509,17 +7319,20 @@ sub perl {
 #-> sub CPAN::Distribution::make ;
 sub make {
     my($self) = @_;
+    if (my $goto = $self->prefs->{goto}) {
+        return $self->goto($goto);
+    }
     my $make = $self->{modulebuild} ? "Build" : "make";
     # Emergency brake if they said install Pippi and get newest perl
     if ($self->isa_perl) {
-      if (
-         $self->called_for ne $self->id &&
-          ! $self->{force_update}
-        ) {
-        # if we die here, we break bundles
-       $CPAN::Frontend
-            ->mywarn(sprintf(
-                             qq{The most recent version "%s" of the module "%s"
+        if (
+            $self->called_for ne $self->id &&
+            ! $self->{force_update}
+        ) {
+            # if we die here, we break bundles
+            $CPAN::Frontend
+                ->mywarn(sprintf(
+                            qq{The most recent version "%s" of the module "%s"
 is part of the perl-%s distribution. To install that, you need to run
   force install %s   --or--
   install %s
@@ -5533,42 +7346,61 @@ is part of the perl-%s distribution. To install that, you need to run
                              $self->called_for,
                              $self->id,
                             ));
-        $self->{make} = CPAN::Distrostatus->new("NO isa perl");
-        $CPAN::Frontend->mysleep(1);
-        return;
-      }
+            $self->{make} = CPAN::Distrostatus->new("NO isa perl");
+            $CPAN::Frontend->mysleep(1);
+            return;
+        }
     }
     $CPAN::Frontend->myprint(sprintf "Running %s for %s\n", $make, $self->id);
     $self->get;
-    if ($CPAN::Signal){
-      delete $self->{force_update};
-      return;
+    if ($self->{configure_requires_later}) {
+        return;
+    }
+    local $ENV{PERL5LIB} = defined($ENV{PERL5LIB})
+                           ? $ENV{PERL5LIB}
+                           : ($ENV{PERLLIB} || "");
+    $CPAN::META->set_perl5lib;
+    local $ENV{MAKEFLAGS}; # protect us from outer make calls
+
+    if ($CPAN::Signal) {
+        delete $self->{force_update};
+        return;
     }
+
+    my $builddir;
   EXCUSE: {
         my @e;
-        !$self->{archived} || $self->{archived} eq "NO" and push @e,
-        "Is neither a tar nor a zip archive.";
+        if (!$self->{archived} || $self->{archived} eq "NO") {
+            push @e, "Is neither a tar nor a zip archive.";
+        }
 
-        !$self->{unwrapped} || $self->{unwrapped} eq "NO" and push @e,
-        "Had problems unarchiving. Please build manually";
+        if (!$self->{unwrapped}
+            || (
+                UNIVERSAL::can($self->{unwrapped},"failed") ?
+                $self->{unwrapped}->failed :
+                $self->{unwrapped} =~ /^NO/
+               )) {
+            push @e, "Had problems unarchiving. Please build manually";
+        }
 
         unless ($self->{force_update}) {
-            exists $self->{signature_verify} and (
-                         $self->{signature_verify}->can("failed") ?
-                         $self->{signature_verify}->failed :
-                         $self->{signature_verify} =~ /^NO/
-                        )
+            exists $self->{signature_verify} and
+                (
+                 UNIVERSAL::can($self->{signature_verify},"failed") ?
+                 $self->{signature_verify}->failed :
+                 $self->{signature_verify} =~ /^NO/
+                )
                 and push @e, "Did not pass the signature test.";
         }
 
         if (exists $self->{writemakefile} &&
             (
-             $self->{writemakefile}->can("failed") ?
+             UNIVERSAL::can($self->{writemakefile},"failed") ?
              $self->{writemakefile}->failed :
              $self->{writemakefile} =~ /^NO/
             )) {
             # XXX maybe a retry would be in order?
-            my $err = $self->{writemakefile}->can("text") ?
+            my $err = UNIVERSAL::can($self->{writemakefile},"text") ?
                 $self->{writemakefile}->text :
                     $self->{writemakefile};
             $err =~ s/^NO\s*//;
@@ -5577,33 +7409,45 @@ is part of the perl-%s distribution. To install that, you need to run
             push @e, $err;
         }
 
-       defined $self->{make} and push @e,
-            "Has already been processed within this session";
-
-        if (exists $self->{later} and length($self->{later})) {
-            if ($self->unsat_prereq) {
-                push @e, $self->{later};
-# RT ticket 18438 raises doubts if the deletion of {later} is valid.
-# YAML-0.53 triggered the later hodge-podge here, but my margin notes
-# are not sufficient to be sure if we really must/may do the delete
-# here. SO I accept the suggested patch for now. If we trigger a bug
-# again, I must go into deep contemplation about the {later} flag.
+        if (defined $self->{make}) {
+            if (UNIVERSAL::can($self->{make},"failed") ?
+                $self->{make}->failed :
+                $self->{make} =~ /^NO/) {
+                if ($self->{force_update}) {
+                    # Trying an already failed 'make' (unless somebody else blocks)
+                } else {
+                    # introduced for turning recursion detection into a distrostatus
+                    my $error = length $self->{make}>3
+                        ? substr($self->{make},3) : "Unknown error";
+                    $CPAN::Frontend->mywarn("Could not make: $error\n");
+                    $self->store_persistent_state;
+                    return;
+                }
+            } else {
+                push @e, "Has already been made";
+            }
+        }
 
-#            } else {
-#                delete $self->{later};
+        my $later = $self->{later} || $self->{configure_requires_later};
+        if ($later) { # see also undelay
+            if ($later) {
+                push @e, $later;
             }
         }
 
-       $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        $builddir = $self->dir or
+            $CPAN::Frontend->mydie("PANIC: Cannot determine build directory\n");
+        unless (chdir $builddir) {
+            push @e, "Couldn't chdir to '$builddir': $!";
+        }
+        $CPAN::Frontend->mywarn(join "", map {"  $_\n"} @e) and return if @e;
     }
-    if ($CPAN::Signal){
-      delete $self->{force_update};
-      return;
+    if ($CPAN::Signal) {
+        delete $self->{force_update};
+        return;
     }
     $CPAN::Frontend->myprint("\n  CPAN.pm: Going to build ".$self->id."\n\n");
-    my $builddir = $self->dir or
-        $CPAN::Frontend->mydie("PANIC: Cannot determine build directory\n");
-    chdir $builddir or Carp::croak("Couldn't chdir $builddir: $!");
     $self->debug("Changed directory to $builddir") if $CPAN::DEBUG;
 
     if ($^O eq 'MacOS') {
@@ -5611,27 +7455,37 @@ is part of the perl-%s distribution. To install that, you need to run
         return;
     }
 
+    my %env;
+    while (my($k,$v) = each %ENV) {
+        next unless defined $v;
+        $env{$k} = $v;
+    }
+    local %ENV = %env;
     my $system;
-    if ($self->{'configure'}) {
+    if (my $commandline = $self->prefs->{pl}{commandline}) {
+        $system = $commandline;
+        $ENV{PERL} = $^X;
+    } elsif ($self->{'configure'}) {
         $system = $self->{'configure'};
     } elsif ($self->{modulebuild}) {
-       my($perl) = $self->perl or die "Couldn\'t find executable perl\n";
+        my($perl) = $self->perl or die "Couldn\'t find executable perl\n";
         $system = "$perl Build.PL $CPAN::Config->{mbuildpl_arg}";
     } else {
-       my($perl) = $self->perl or die "Couldn\'t find executable perl\n";
-       my $switch = "";
+        my($perl) = $self->perl or die "Couldn\'t find executable perl\n";
+        my $switch = "";
 # This needs a handler that can be turned on or off:
-#      $switch = "-MExtUtils::MakeMaker ".
-#          "-Mops=:default,:filesys_read,:filesys_open,require,chdir"
-#          if $] > 5.00310;
+#        $switch = "-MExtUtils::MakeMaker ".
+#            "-Mops=:default,:filesys_read,:filesys_open,require,chdir"
+#            if $] > 5.00310;
         my $makepl_arg = $self->make_x_arg("pl");
-       $system = sprintf("%s%s Makefile.PL%s",
+        $ENV{PERL5_CPAN_IS_EXECUTING} = File::Spec->catfile($self->{build_dir},
+                                                            "Makefile.PL");
+        $system = sprintf("%s%s Makefile.PL%s",
                           $perl,
                           $switch ? " $switch" : "",
                           $makepl_arg ? " $makepl_arg" : "",
                          );
     }
-    local %ENV = %ENV;
     if (my $env = $self->prefs->{pl}{env}) {
         for my $e (keys %$env) {
             $ENV{$e} = $env->{$e};
@@ -5639,11 +7493,11 @@ is part of the perl-%s distribution. To install that, you need to run
     }
     if (exists $self->{writemakefile}) {
     } else {
-       local($SIG{ALRM}) = sub { die "inactivity_timeout reached\n" };
-       my($ret,$pid);
-       $@ = "";
+        local($SIG{ALRM}) = sub { die "inactivity_timeout reached\n" };
+        my($ret,$pid,$output);
+        $@ = "";
         my $go_via_alarm;
-       if ($CPAN::Config->{inactivity_timeout}) {
+        if ($CPAN::Config->{inactivity_timeout}) {
             require Config;
             if ($Config::Config{d_alarm}
                 &&
@@ -5663,90 +7517,132 @@ is part of the perl-%s distribution. To install that, you need to run
             }
         }
         if ($go_via_alarm) {
-            eval {
-                alarm $CPAN::Config->{inactivity_timeout};
-                local $SIG{CHLD}; # = sub { wait };
-                if (defined($pid = fork)) {
-                    if ($pid) { #parent
-                        # wait;
-                        waitpid $pid, 0;
-                    } else {    #child
-                        # note, this exec isn't necessary if
-                        # inactivity_timeout is 0. On the Mac I'd
-                        # suggest, we set it always to 0.
-                        exec $system;
+            if ( $self->_should_report('pl') ) {
+                ($output, $ret) = CPAN::Reporter::record_command(
+                    $system,
+                    $CPAN::Config->{inactivity_timeout},
+                );
+                CPAN::Reporter::grade_PL( $self, $system, $output, $ret );
+            }
+            else {
+                eval {
+                    alarm $CPAN::Config->{inactivity_timeout};
+                    local $SIG{CHLD}; # = sub { wait };
+                    if (defined($pid = fork)) {
+                        if ($pid) { #parent
+                            # wait;
+                            waitpid $pid, 0;
+                        } else {    #child
+                            # note, this exec isn't necessary if
+                            # inactivity_timeout is 0. On the Mac I'd
+                            # suggest, we set it always to 0.
+                            exec $system;
+                        }
+                    } else {
+                        $CPAN::Frontend->myprint("Cannot fork: $!");
+                        return;
                     }
-                } else {
-                    $CPAN::Frontend->myprint("Cannot fork: $!");
+                };
+                alarm 0;
+                if ($@) {
+                    kill 9, $pid;
+                    waitpid $pid, 0;
+                    my $err = "$@";
+                    $CPAN::Frontend->myprint($err);
+                    $self->{writemakefile} = CPAN::Distrostatus->new("NO $err");
+                    $@ = "";
+                    $self->store_persistent_state;
+                    return $self->goodbye("$system -- TIMED OUT");
+                }
+            }
+        } else {
+            if (my $expect_model = $self->_prefs_with_expect("pl")) {
+                # XXX probably want to check _should_report here and warn
+                # about not being able to use CPAN::Reporter with expect
+                $ret = $self->_run_via_expect($system,$expect_model);
+                if (! defined $ret
+                    && $self->{writemakefile}
+                    && $self->{writemakefile}->failed) {
+                    # timeout
                     return;
                 }
-            };
-            alarm 0;
-            if ($@){
-                kill 9, $pid;
-                waitpid $pid, 0;
-                my $err = "$@";
-                $CPAN::Frontend->myprint($err);
-                $self->{writemakefile} = CPAN::Distrostatus->new("NO $err");
-                $@ = "";
-                return;
             }
-       } else {
-            if (my $expect = $self->prefs->{pl}{expect}) {
-                $ret = $self->run_via_expect($system,$expect);
-            } else {
+            elsif ( $self->_should_report('pl') ) {
+                ($output, $ret) = CPAN::Reporter::record_command($system);
+                CPAN::Reporter::grade_PL( $self, $system, $output, $ret );
+            }
+            else {
                 $ret = system($system);
             }
             if ($ret != 0) {
                 $self->{writemakefile} = CPAN::Distrostatus
                     ->new("NO '$system' returned status $ret");
                 $CPAN::Frontend->mywarn("Warning: No success on command[$system]\n");
-                return;
+                $self->store_persistent_state;
+                return $self->goodbye("$system -- NOT OK");
             }
-       }
-       if (-f "Makefile" || -f "Build") {
-         $self->{writemakefile} = CPAN::Distrostatus->new("YES");
-          delete $self->{make_clean}; # if cleaned before, enable next
-       } else {
-         $self->{writemakefile} = CPAN::Distrostatus
-              ->new(qq{NO -- Unknown reason.});
-       }
+        }
+        if (-f "Makefile" || -f "Build") {
+            $self->{writemakefile} = CPAN::Distrostatus->new("YES");
+            delete $self->{make_clean}; # if cleaned before, enable next
+        } else {
+            my $makefile = $self->{modulebuild} ? "Build" : "Makefile";
+            $self->{writemakefile} = CPAN::Distrostatus
+                ->new(qq{NO -- No $makefile created});
+            $self->store_persistent_state;
+            return $self->goodbye("$system -- NO $makefile created");
+        }
     }
-    if ($CPAN::Signal){
-      delete $self->{force_update};
-      return;
+    if ($CPAN::Signal) {
+        delete $self->{force_update};
+        return;
     }
-    if (my @prereq = $self->unsat_prereq){
+    if (my @prereq = $self->unsat_prereq("later")) {
         if ($prereq[0][0] eq "perl") {
             my $need = "requires perl '$prereq[0][1]'";
             my $id = $self->pretty_id;
             $CPAN::Frontend->mywarn("$id $need; you have only $]; giving up\n");
             $self->{make} = CPAN::Distrostatus->new("NO $need");
-            return;
+            $self->store_persistent_state;
+            return $self->goodbye("[prereq] -- NOT OK");
         } else {
-            return 1 if $self->follow_prereqs(@prereq); # signal success to the queuerunner
+            my $follow = eval { $self->follow_prereqs("later",@prereq); };
+            if (0) {
+            } elsif ($follow) {
+                # signal success to the queuerunner
+                return 1;
+            } elsif ($@ && ref $@ && $@->isa("CPAN::Exception::RecursiveDependency")) {
+                $CPAN::Frontend->mywarn($@);
+                return $self->goodbye("[depend] -- NOT OK");
+            }
         }
     }
-    if ($CPAN::Signal){
-      delete $self->{force_update};
-      return;
+    if ($CPAN::Signal) {
+        delete $self->{force_update};
+        return;
     }
-    if ($self->{modulebuild}) {
-        unless (-f "Build") {
-            my $cwd = Cwd::cwd;
-            $CPAN::Frontend->mywarn("Alert: no Build file available for 'make $self->{id}'".
-                                    " in cwd[$cwd]. Danger, Will Robinson!");
-            $CPAN::Frontend->mysleep(5);
-        }
-        $system = sprintf "%s %s", $self->_build_command(), $CPAN::Config->{mbuild_arg};
+    if (my $commandline = $self->prefs->{make}{commandline}) {
+        $system = $commandline;
+        $ENV{PERL} = $^X;
     } else {
-        $system = join " ", $self->_make_command(), $CPAN::Config->{make_arg};
+        if ($self->{modulebuild}) {
+            unless (-f "Build") {
+                my $cwd = CPAN::anycwd();
+                $CPAN::Frontend->mywarn("Alert: no Build file available for 'make $self->{id}'".
+                                        " in cwd[$cwd]. Danger, Will Robinson!\n");
+                $CPAN::Frontend->mysleep(5);
+            }
+            $system = join " ", $self->_build_command(), $CPAN::Config->{mbuild_arg};
+        } else {
+            $system = join " ", $self->_make_command(),  $CPAN::Config->{make_arg};
+        }
+        $system =~ s/\s+$//;
+        my $make_arg = $self->make_x_arg("make");
+        $system = sprintf("%s%s",
+                          $system,
+                          $make_arg ? " $make_arg" : "",
+                         );
     }
-    my $make_arg = $self->make_x_arg("make");
-    $system = sprintf("%s%s",
-                      $system,
-                      $make_arg ? " $make_arg" : "",
-                     );
     if (my $env = $self->prefs->{make}{env}) { # overriding the local
                                                # ENV of PL, not the
                                                # outer ENV, but
@@ -5755,107 +7651,320 @@ is part of the perl-%s distribution. To install that, you need to run
             $ENV{$e} = $env->{$e};
         }
     }
-    if (system($system) == 0) {
-        $CPAN::Frontend->myprint("  $system -- OK\n");
-        $self->{make} = CPAN::Distrostatus->new("YES");
+    my $expect_model = $self->_prefs_with_expect("make");
+    my $want_expect = 0;
+    if ( $expect_model && @{$expect_model->{talk}} ) {
+        my $can_expect = $CPAN::META->has_inst("Expect");
+        if ($can_expect) {
+            $want_expect = 1;
+        } else {
+            $CPAN::Frontend->mywarn("Expect not installed, falling back to ".
+                                    "system()\n");
+        }
+    }
+    my $system_ok;
+    if ($want_expect) {
+        # XXX probably want to check _should_report here and
+        # warn about not being able to use CPAN::Reporter with expect
+        $system_ok = $self->_run_via_expect($system,$expect_model) == 0;
+    }
+    elsif ( $self->_should_report('make') ) {
+        my ($output, $ret) = CPAN::Reporter::record_command($system);
+        CPAN::Reporter::grade_make( $self, $system, $output, $ret );
+        $system_ok = ! $ret;
+    }
+    else {
+        $system_ok = system($system) == 0;
+    }
+    $self->introduce_myself;
+    if ( $system_ok ) {
+        $CPAN::Frontend->myprint("  $system -- OK\n");
+        $self->{make} = CPAN::Distrostatus->new("YES");
     } else {
-        $self->{writemakefile} ||= CPAN::Distrostatus->new("YES");
-        $self->{make} = CPAN::Distrostatus->new("NO");
-        $CPAN::Frontend->mywarn("  $system -- NOT OK\n");
+        $self->{writemakefile} ||= CPAN::Distrostatus->new("YES");
+        $self->{make} = CPAN::Distrostatus->new("NO");
+        $CPAN::Frontend->mywarn("  $system -- NOT OK\n");
     }
+    $self->store_persistent_state;
 }
 
-# CPAN::Distribution::run_via_expect
-sub run_via_expect {
-    my($self,$system,$expect) = @_;
-    CPAN->debug("system[$system]expect[$expect]") if $CPAN::DEBUG;
+# CPAN::Distribution::goodbye ;
+sub goodbye {
+    my($self,$goodbye) = @_;
+    my $id = $self->pretty_id;
+    $CPAN::Frontend->mywarn("  $id\n  $goodbye\n");
+    return;
+}
+
+# CPAN::Distribution::_run_via_expect ;
+sub _run_via_expect {
+    my($self,$system,$expect_model) = @_;
+    CPAN->debug("system[$system]expect_model[$expect_model]") if $CPAN::DEBUG;
     if ($CPAN::META->has_inst("Expect")) {
-        my $expo = Expect->new;
+        my $expo = Expect->new;  # expo Expect object;
         $expo->spawn($system);
-      EXPECT: for (my $i = 0; $i < $#$expect; $i+=2) {
-            my $regex = eval "qr{$expect->[$i]}";
-            my $send = $expect->[$i+1];
-            $expo->expect(10,
-                          [ eof => sub {
-                                my $but = $expo->clear_accum;
-                                $CPAN::Frontend->mywarn("EOF (maybe harmless) system[$system]
-expected[$regex]\nbut[$but]\n\n");
-                                last EXPECT;
-                            } ],
-                          [ timeout => sub {
-                                my $but = $expo->clear_accum;
-                                $CPAN::Frontend->mydie("TIMEOUT system[$system]
-expected[$regex]\nbut[$but]\n\n");
-                            } ],
-                          -re => $regex);
-            $expo->send($send);
+        $expect_model->{mode} ||= "deterministic";
+        if ($expect_model->{mode} eq "deterministic") {
+            return $self->_run_via_expect_deterministic($expo,$expect_model);
+        } elsif ($expect_model->{mode} eq "anyorder") {
+            return $self->_run_via_expect_anyorder($expo,$expect_model);
+        } else {
+            die "Panic: Illegal expect mode: $expect_model->{mode}";
         }
-        $expo->soft_close;
-        return $expo->exitstatus();
     } else {
         $CPAN::Frontend->mywarn("Expect not installed, falling back to system()\n");
         return system($system);
     }
 }
 
-# CPAN::Distribution::_find_prefs
+sub _run_via_expect_anyorder {
+    my($self,$expo,$expect_model) = @_;
+    my $timeout = $expect_model->{timeout} || 5;
+    my $reuse = $expect_model->{reuse};
+    my @expectacopy = @{$expect_model->{talk}}; # we trash it!
+    my $but = "";
+  EXPECT: while () {
+        my($eof,$ran_into_timeout);
+        my @match = $expo->expect($timeout,
+                                  [ eof => sub {
+                                        $eof++;
+                                    } ],
+                                  [ timeout => sub {
+                                        $ran_into_timeout++;
+                                    } ],
+                                  -re => eval"qr{.}",
+                                 );
+        if ($match[2]) {
+            $but .= $match[2];
+        }
+        $but .= $expo->clear_accum;
+        if ($eof) {
+            $expo->soft_close;
+            return $expo->exitstatus();
+        } elsif ($ran_into_timeout) {
+            # warn "DEBUG: they are asking a question, but[$but]";
+            for (my $i = 0; $i <= $#expectacopy; $i+=2) {
+                my($next,$send) = @expectacopy[$i,$i+1];
+                my $regex = eval "qr{$next}";
+                # warn "DEBUG: will compare with regex[$regex].";
+                if ($but =~ /$regex/) {
+                    # warn "DEBUG: will send send[$send]";
+                    $expo->send($send);
+                    # never allow reusing an QA pair unless they told us
+                    splice @expectacopy, $i, 2 unless $reuse;
+                    next EXPECT;
+                }
+            }
+            my $why = "could not answer a question during the dialog";
+            $CPAN::Frontend->mywarn("Failing: $why\n");
+            $self->{writemakefile} =
+                CPAN::Distrostatus->new("NO $why");
+            return;
+        }
+    }
+}
+
+sub _run_via_expect_deterministic {
+    my($self,$expo,$expect_model) = @_;
+    my $ran_into_timeout;
+    my $timeout = $expect_model->{timeout} || 15; # currently unsettable
+    my $expecta = $expect_model->{talk};
+  EXPECT: for (my $i = 0; $i <= $#$expecta; $i+=2) {
+        my($re,$send) = @$expecta[$i,$i+1];
+        CPAN->debug("timeout[$timeout]re[$re]") if $CPAN::DEBUG;
+        my $regex = eval "qr{$re}";
+        $expo->expect($timeout,
+                      [ eof => sub {
+                            my $but = $expo->clear_accum;
+                            $CPAN::Frontend->mywarn("EOF (maybe harmless)
+expected[$regex]\nbut[$but]\n\n");
+                            last EXPECT;
+                        } ],
+                      [ timeout => sub {
+                            my $but = $expo->clear_accum;
+                            $CPAN::Frontend->mywarn("TIMEOUT
+expected[$regex]\nbut[$but]\n\n");
+                            $ran_into_timeout++;
+                        } ],
+                      -re => $regex);
+        if ($ran_into_timeout) {
+            # note that the caller expects 0 for success
+            $self->{writemakefile} =
+                CPAN::Distrostatus->new("NO timeout during expect dialog");
+            return;
+        }
+        $expo->send($send);
+    }
+    $expo->soft_close;
+    return $expo->exitstatus();
+}
+
+#-> CPAN::Distribution::_validate_distropref
+sub _validate_distropref {
+    my($self,@args) = @_;
+    if (
+        $CPAN::META->has_inst("CPAN::Kwalify")
+        &&
+        $CPAN::META->has_inst("Kwalify")
+       ) {
+        eval {CPAN::Kwalify::_validate("distroprefs",@args);};
+        if ($@) {
+            $CPAN::Frontend->mywarn($@);
+        }
+    } else {
+        CPAN->debug("not validating '@args'") if $CPAN::DEBUG;
+    }
+}
+
+#-> CPAN::Distribution::_find_prefs
 sub _find_prefs {
-    my($self,$distro) = @_;
-    my $distroid = $distro->pretty_id;
-    CPAN->debug("distroid[$distroid]") if $CPAN::DEBUG;
+    my($self) = @_;
+    my $distroid = $self->pretty_id;
+    #CPAN->debug("distroid[$distroid]") if $CPAN::DEBUG;
     my $prefs_dir = $CPAN::Config->{prefs_dir};
     eval { File::Path::mkpath($prefs_dir); };
     if ($@) {
         $CPAN::Frontend->mydie("Cannot create directory $prefs_dir");
     }
-    my $yaml_module = $CPAN::Config->{yaml_module} || "YAML";
+    my $yaml_module = CPAN::_yaml_module;
+    my @extensions;
     if ($CPAN::META->has_inst($yaml_module)) {
+        push @extensions, "yml";
+    } else {
+        my @fallbacks;
+        if ($CPAN::META->has_inst("Data::Dumper")) {
+            push @extensions, "dd";
+            push @fallbacks, "Data::Dumper";
+        }
+        if ($CPAN::META->has_inst("Storable")) {
+            push @extensions, "st";
+            push @fallbacks, "Storable";
+        }
+        if (@fallbacks) {
+            local $" = " and ";
+            unless ($self->{have_complained_about_missing_yaml}++) {
+                $CPAN::Frontend->mywarn("'$yaml_module' not installed, falling back ".
+                                        "to @fallbacks to read prefs '$prefs_dir'\n");
+            }
+        } else {
+            unless ($self->{have_complained_about_missing_yaml}++) {
+                $CPAN::Frontend->mywarn("'$yaml_module' not installed, cannot ".
+                                        "read prefs '$prefs_dir'\n");
+            }
+        }
+    }
+    if (@extensions) {
         my $dh = DirHandle->new($prefs_dir)
             or die Carp::croak("Couldn't open '$prefs_dir': $!");
       DIRENT: for (sort $dh->read) {
             next if $_ eq "." || $_ eq "..";
-            next unless /\.yml$/;
+            my $exte = join "|", @extensions;
+            next unless /\.($exte)$/;
+            my $thisexte = $1;
             my $abs = File::Spec->catfile($prefs_dir, $_);
-            # CPAN->debug("abs[$abs]") if $CPAN::DEBUG;
             if (-f $abs) {
-                my $yaml = CPAN->_yaml_loadfile($abs);
-                my $ok = 1;
-                my $match = $yaml->{match} or
-                    $CPAN::Frontend->mydie("Nonconforming YAML file '$abs': ".
-                                           "missing attribut 'match'. Please ".
-                                           "remove, cannot continue.");
-                for my $sub_attribute (keys %$match) {
-                    my $qr = eval "qr{$yaml->{match}{$sub_attribute}}";
-                    if ($sub_attribute eq "module") {
-                        my $okm = 0;
-                        my @modules = $distro->containsmods;
-                        for my $module (@modules) {
-                            $okm ||= $module =~ /$qr/;
-                            last if $okm;
+                #CPAN->debug(sprintf "abs[%s]", $abs) if $CPAN::DEBUG;
+                my @distropref;
+                if ($thisexte eq "yml") {
+                    # need no eval because if we have no YAML we do not try to read *.yml
+                    #CPAN->debug(sprintf "before yaml load abs[%s]", $abs) if $CPAN::DEBUG;
+                    @distropref = @{CPAN->_yaml_loadfile($abs)};
+                    #CPAN->debug(sprintf "after yaml load abs[%s]", $abs) if $CPAN::DEBUG;
+                } elsif ($thisexte eq "dd") {
+                    package CPAN::Eval;
+                    no strict;
+                    open FH, "<$abs" or $CPAN::Frontend->mydie("Could not open '$abs': $!");
+                    local $/;
+                    my $eval = <FH>;
+                    close FH;
+                    eval $eval;
+                    if ($@) {
+                        $CPAN::Frontend->mydie("Error in distroprefs file $_\: $@");
+                    }
+                    my $i = 1;
+                    while (${"VAR".$i}) {
+                        push @distropref, ${"VAR".$i};
+                        $i++;
+                    }
+                } elsif ($thisexte eq "st") {
+                    # eval because Storable is never forward compatible
+                    eval { @distropref = @{scalar Storable::retrieve($abs)}; };
+                    if ($@) {
+                        $CPAN::Frontend->mywarn("Error reading distroprefs file ".
+                                                "$_, skipping\: $@");
+                        $CPAN::Frontend->mysleep(4);
+                        next DIRENT;
+                    }
+                }
+                # $DB::single=1;
+                #CPAN->debug(sprintf "#distropref[%d]", scalar @distropref) if $CPAN::DEBUG;
+              ELEMENT: for my $y (0..$#distropref) {
+                    my $distropref = $distropref[$y];
+                    $self->_validate_distropref($distropref,$abs,$y);
+                    my $match = $distropref->{match};
+                    unless ($match) {
+                        #CPAN->debug("no 'match' in abs[$abs], skipping") if $CPAN::DEBUG;
+                        next ELEMENT;
+                    }
+                    my $ok = 1;
+                    # do not take the order of C<keys %$match> because
+                    # "module" is by far the slowest
+                    my $saw_valid_subkeys = 0;
+                    for my $sub_attribute (qw(distribution perl perlconfig module)) {
+                        next unless exists $match->{$sub_attribute};
+                        $saw_valid_subkeys++;
+                        my $qr = eval "qr{$distropref->{match}{$sub_attribute}}";
+                        if ($sub_attribute eq "module") {
+                            my $okm = 0;
+                            #CPAN->debug(sprintf "distropref[%d]", scalar @distropref) if $CPAN::DEBUG;
+                            my @modules = $self->containsmods;
+                            #CPAN->debug(sprintf "modules[%s]", join(",",@modules)) if $CPAN::DEBUG;
+                          MODULE: for my $module (@modules) {
+                                $okm ||= $module =~ /$qr/;
+                                last MODULE if $okm;
+                            }
+                            $ok &&= $okm;
+                        } elsif ($sub_attribute eq "distribution") {
+                            my $okd = $distroid =~ /$qr/;
+                            $ok &&= $okd;
+                        } elsif ($sub_attribute eq "perl") {
+                            my $okp = $^X =~ /$qr/;
+                            $ok &&= $okp;
+                        } elsif ($sub_attribute eq "perlconfig") {
+                            for my $perlconfigkey (keys %{$match->{perlconfig}}) {
+                                my $perlconfigval = $match->{perlconfig}->{$perlconfigkey};
+                                # XXX should probably warn if Config does not exist
+                                my $okpc = $Config::Config{$perlconfigkey} =~ /$perlconfigval/;
+                                $ok &&= $okpc;
+                                last if $ok == 0;
+                            }
+                        } else {
+                            $CPAN::Frontend->mydie("Nonconforming .$thisexte file '$abs': ".
+                                                   "unknown sub_attribut '$sub_attribute'. ".
+                                                   "Please ".
+                                                   "remove, cannot continue.");
                         }
-                        $ok &&= $okm;
-                    } elsif ($sub_attribute eq "distribution") {
-                        my $okd = $distroid =~ /$qr/;
-                        $ok &&= $okd;
-                    } else {
-                        $CPAN::Frontend->mydie("Nonconforming YAML file '$abs': ".
-                                               "unknown sub_attribut '$sub_attribute'. ".
+                        last if $ok == 0; # short circuit
+                    }
+                    unless ($saw_valid_subkeys) {
+                        $CPAN::Frontend->mydie("Nonconforming .$thisexte file '$abs': ".
+                                               "missing match/* subattribute. ".
                                                "Please ".
                                                "remove, cannot continue.");
                     }
-                }
-                if ($ok) {
-                    return {
-                            prefs => $yaml,
-                            prefs_file => $abs,
-                           };
+                    #CPAN->debug(sprintf "ok[%d]", $ok) if $CPAN::DEBUG;
+                    if ($ok) {
+                        return {
+                                prefs => $distropref,
+                                prefs_file => $abs,
+                                prefs_file_doc => $y,
+                               };
+                    }
+
                 }
             }
         }
-    } else {
-        unless ($self->{have_complained_about_missing_yaml}++) {
-            $CPAN::Frontend->mywarn("'$yaml_module' not installed, cannot read prefs '$prefs_dir'\n");
-        }
+        $dh->close;
     }
     return;
 }
@@ -5863,30 +7972,44 @@ sub _find_prefs {
 # CPAN::Distribution::prefs
 sub prefs {
     my($self) = @_;
+    if (exists $self->{negative_prefs_cache}
+        &&
+        $self->{negative_prefs_cache} != $CPAN::CurrentCommandId
+       ) {
+        delete $self->{negative_prefs_cache};
+        delete $self->{prefs};
+    }
     if (exists $self->{prefs}) {
         return $self->{prefs}; # XXX comment out during debugging
     }
     if ($CPAN::Config->{prefs_dir}) {
         CPAN->debug("prefs_dir[$CPAN::Config->{prefs_dir}]") if $CPAN::DEBUG;
-        my $prefs = $self->_find_prefs($self);
+        my $prefs = $self->_find_prefs();
+        $prefs ||= ""; # avoid warning next line
+        CPAN->debug("prefs[$prefs]") if $CPAN::DEBUG;
         if ($prefs) {
-            for my $x (qw(prefs prefs_file)) {
+            for my $x (qw(prefs prefs_file prefs_file_doc)) {
                 $self->{$x} = $prefs->{$x};
             }
-            my $basename = File::Basename::basename($self->{prefs_file});
+            my $bs = sprintf(
+                             "%s[%s]",
+                             File::Basename::basename($self->{prefs_file}),
+                             $self->{prefs_file_doc},
+                            );
             my $filler1 = "_" x 22;
-            my $filler2 = int(66 - length($basename))/2;
+            my $filler2 = int(66 - length($bs))/2;
             $filler2 = 0 if $filler2 < 0;
             $filler2 = " " x $filler2;
             $CPAN::Frontend->myprint("
 $filler1 D i s t r o P r e f s $filler1
-$filler2 $basename $filler2
+$filler2 $bs $filler2
 ");
             $CPAN::Frontend->mysleep(1);
             return $self->{prefs};
         }
     }
-    return +{};
+    $self->{negative_prefs_cache} = $CPAN::CurrentCommandId;
+    return $self->{prefs} = +{};
 }
 
 # CPAN::Distribution::make_x_arg
@@ -5917,8 +8040,8 @@ sub _make_command {
         return
             CPAN::HandleConfig
                 ->safe_quote(
-                             $self->prefs->{cpanconfig}{make}
-                             || $CPAN::Config->{make}
+                             CPAN::HandleConfig->prefs_lookup($self,
+                                                              q{make})
                              || $Config::Config{make}
                              || 'make'
                             );
@@ -5927,7 +8050,7 @@ sub _make_command {
         Carp::confess("CPAN::_make_command() used as function. Don't Do That.");
         return
           safe_quote(undef,
-                     $self->prefs->{cpanconfig}{make}
+                     CPAN::HandleConfig->prefs_lookup($self,q{make})
                      || $CPAN::Config->{make}
                      || $Config::Config{make}
                      || 'make');
@@ -5937,79 +8060,127 @@ sub _make_command {
 #-> sub CPAN::Distribution::follow_prereqs ;
 sub follow_prereqs {
     my($self) = shift;
+    my($slot) = shift;
     my(@prereq_tuples) = grep {$_->[0] ne "perl"} @_;
     return unless @prereq_tuples;
     my @prereq = map { $_->[0] } @prereq_tuples;
-    my $id = $self->id;
+    my $pretty_id = $self->pretty_id;
     my %map = (
                b => "build_requires",
                r => "requires",
                c => "commandline",
               );
+    my($filler1,$filler2,$filler3,$filler4);
+    # $DB::single=1;
+    my $unsat = "Unsatisfied dependencies detected during";
+    my $w = length($unsat) > length($pretty_id) ? length($unsat) : length($pretty_id);
+    {
+        my $r = int(($w - length($unsat))/2);
+        my $l = $w - length($unsat) - $r;
+        $filler1 = "-"x4 . " "x$l;
+        $filler2 = " "x$r . "-"x4 . "\n";
+    }
+    {
+        my $r = int(($w - length($pretty_id))/2);
+        my $l = $w - length($pretty_id) - $r;
+        $filler3 = "-"x4 . " "x$l;
+        $filler4 = " "x$r . "-"x4 . "\n";
+    }
     $CPAN::Frontend->
-        myprint("---- Unsatisfied dependencies detected during\n".
-                "---- $id\n".
+        myprint("$filler1 $unsat $filler2".
+                "$filler3 $pretty_id $filler4".
                 join("", map {"    $_->[0] \[$map{$_->[1]}]\n"} @prereq_tuples),
                );
     my $follow = 0;
     if ($CPAN::Config->{prerequisites_policy} eq "follow") {
-       $follow = 1;
+        $follow = 1;
     } elsif ($CPAN::Config->{prerequisites_policy} eq "ask") {
-       my $answer = CPAN::Shell::colorable_makemaker_prompt(
+        my $answer = CPAN::Shell::colorable_makemaker_prompt(
 "Shall I follow them and prepend them to the queue
 of modules we are processing right now?", "yes");
-       $follow = $answer =~ /^\s*y/i;
+        $follow = $answer =~ /^\s*y/i;
     } else {
-       local($") = ", ";
-       $CPAN::Frontend->
+        local($") = ", ";
+        $CPAN::Frontend->
             myprint("  Ignoring dependencies on modules @prereq\n");
     }
     if ($follow) {
+        my $id = $self->id;
         # color them as dirty
         for my $p (@prereq) {
             # warn "calling color_cmd_tmps(0,1)";
-            CPAN::Shell->expandany($p)->color_cmd_tmps(0,1);
+            my $any = CPAN::Shell->expandany($p);
+            $self->{$slot . "_for"}{$any->id}++;
+            if ($any) {
+                $any->color_cmd_tmps(0,2);
+            } else {
+                $CPAN::Frontend->mywarn("Warning (maybe a bug): Cannot expand prereq '$p'\n");
+                $CPAN::Frontend->mysleep(2);
+            }
         }
         # queue them and re-queue yourself
-        CPAN::Queue->jumpqueue([$id,$self->{reqtype}],
-                               reverse @prereq_tuples);
-        $self->{later} = "Delayed until after prerequisites";
+        CPAN::Queue->jumpqueue({qmod => $id, reqtype => $self->{reqtype}},
+                               map {+{qmod=>$_->[0],reqtype=>$_->[1]}} reverse @prereq_tuples);
+        $self->{$slot} = "Delayed until after prerequisites";
         return 1; # signal success to the queuerunner
     }
+    return;
 }
 
 #-> sub CPAN::Distribution::unsat_prereq ;
 # return ([Foo=>1],[Bar=>1.2]) for normal modules
 # return ([perl=>5.008]) if we need a newer perl than we are running under
 sub unsat_prereq {
-    my($self) = @_;
-    my $prereq_pm = $self->prereq_pm or return;
+    my($self,$slot) = @_;
+    my(%merged,$prereq_pm);
+    my $prefs_depends = $self->prefs->{depends}||{};
+    if ($slot eq "configure_requires_later") {
+        my $meta_yml = $self->parse_meta_yml();
+        %merged = (%{$meta_yml->{configure_requires}||{}},
+                   %{$prefs_depends->{configure_requires}||{}});
+        $prereq_pm = {}; # configure_requires defined as "b"
+    } elsif ($slot eq "later") {
+        my $prereq_pm_0 = $self->prereq_pm || {};
+        for my $reqtype (qw(requires build_requires)) {
+            $prereq_pm->{$reqtype} = {%{$prereq_pm_0->{$reqtype}||{}}}; # copy to not pollute it
+            for my $k (keys %{$prefs_depends->{$reqtype}||{}}) {
+                $prereq_pm->{$reqtype}{$k} = $prefs_depends->{$reqtype}{$k};
+            }
+        }
+        %merged = (%{$prereq_pm->{requires}||{}},%{$prereq_pm->{build_requires}||{}});
+    } else {
+        die "Panic: illegal slot '$slot'";
+    }
     my(@need);
-    my %merged = (%{$prereq_pm->{requires}||{}},%{$prereq_pm->{build_requires}||{}});
+    my @merged = %merged;
+    CPAN->debug("all merged_prereqs[@merged]") if $CPAN::DEBUG;
   NEED: while (my($need_module, $need_version) = each %merged) {
-        my($have_version,$inst_file);
+        my($available_version,$available_file,$nmo);
         if ($need_module eq "perl") {
-            $have_version = $];
-            $inst_file = $^X;
+            $available_version = $];
+            $available_file = $^X;
         } else {
-            my $nmo = $CPAN::META->instance("CPAN::Module",$need_module);
+            $nmo = $CPAN::META->instance("CPAN::Module",$need_module);
             next if $nmo->uptodate;
-            $inst_file = $nmo->inst_file;
+            $available_file = $nmo->available_file;
 
             # if they have not specified a version, we accept any installed one
-            if (not defined $need_version or
-                $need_version eq "0" or
-                $need_version eq "undef") {
-                next if defined $inst_file;
+            if (defined $available_file
+                and ( # a few quick shortcurcuits
+                     not defined $need_version
+                     or $need_version eq '0'    # "==" would trigger warning when not numeric
+                     or $need_version eq "undef"
+                    )) {
+                next NEED;
             }
 
-            $have_version = $nmo->inst_version;
+            $available_version = $nmo->available_version;
         }
 
         # We only want to install prereqs if either they're not installed
         # or if the installed version is too old. We cannot omit this
         # check, because if 'force' is in effect, nobody else will check.
-        if (defined $inst_file) {
+        if (defined $available_file) {
             my(@all_requirements) = split /\s*,\s*/, $need_version;
             local($^W) = 0;
             my $ok = 0;
@@ -6017,13 +8188,13 @@ sub unsat_prereq {
                 if ($rq =~ s|>=\s*||) {
                 } elsif ($rq =~ s|>\s*||) {
                     # 2005-12: one user
-                    if (CPAN::Version->vgt($have_version,$rq)){
+                    if (CPAN::Version->vgt($available_version,$rq)) {
                         $ok++;
                     }
                     next RQ;
                 } elsif ($rq =~ s|!=\s*||) {
                     # 2005-12: no user
-                    if (CPAN::Version->vcmp($have_version,$rq)){
+                    if (CPAN::Version->vcmp($available_version,$rq)) {
                         $ok++;
                         next RQ;
                     } else {
@@ -6031,18 +8202,18 @@ sub unsat_prereq {
                     }
                 } elsif ($rq =~ m|<=?\s*|) {
                     # 2005-12: no user
-                    $CPAN::Frontend->mywarn("Downgrading not supported (rq[$rq])");
+                    $CPAN::Frontend->mywarn("Downgrading not supported (rq[$rq])\n");
                     $ok++;
                     next RQ;
                 }
-                if (! CPAN::Version->vgt($rq, $have_version)){
+                if (! CPAN::Version->vgt($rq, $available_version)) {
                     $ok++;
                 }
-                CPAN->debug(sprintf("need_module[%s]inst_file[%s]".
-                                    "inst_version[%s]rq[%s]ok[%d]",
+                CPAN->debug(sprintf("need_module[%s]available_file[%s]".
+                                    "available_version[%s]rq[%s]ok[%d]",
                                     $need_module,
-                                    $inst_file,
-                                    $have_version,
+                                    $available_file,
+                                    $available_version,
                                     CPAN::Version->readable($rq),
                                     $ok,
                                    )) if $CPAN::DEBUG;
@@ -6053,15 +8224,89 @@ sub unsat_prereq {
         if ($need_module eq "perl") {
             return ["perl", $need_version];
         }
-        if ($self->{sponsored_mods}{$need_module}++){
+        $self->{sponsored_mods}{$need_module} ||= 0;
+        CPAN->debug("need_module[$need_module]s/s/n[$self->{sponsored_mods}{$need_module}]") if $CPAN::DEBUG;
+        if ($self->{sponsored_mods}{$need_module}++) {
             # We have already sponsored it and for some reason it's still
-            # not available. So we do nothing. Or what should we do?
+            # not available. So we do ... what??
+
             # if we push it again, we have a potential infinite loop
-            next;
+
+            # The following "next" was a very problematic construct.
+            # It helped a lot but broke some day and had to be
+            # replaced.
+
+            # We must be able to deal with modules that come again and
+            # again as a prereq and have themselves prereqs and the
+            # queue becomes long but finally we would find the correct
+            # order. The RecursiveDependency check should trigger a
+            # die when it's becoming too weird. Unfortunately removing
+            # this next breaks many other things.
+
+            # The bug that brought this up is described in Todo under
+            # "5.8.9 cannot install Compress::Zlib"
+
+            # next; # this is the next that had to go away
+
+            # The following "next NEED" are fine and the error message
+            # explains well what is going on. For example when the DBI
+            # fails and consequently DBD::SQLite fails and now we are
+            # processing CPAN::SQLite. Then we must have a "next" for
+            # DBD::SQLite. How can we get it and how can we identify
+            # all other cases we must identify?
+
+            my $do = $nmo->distribution;
+            next NEED unless $do; # not on CPAN
+          NOSAYER: for my $nosayer (
+                                    "unwrapped",
+                                    "writemakefile",
+                                    "signature_verify",
+                                    "make",
+                                    "make_test",
+                                    "install",
+                                    "make_clean",
+                                   ) {
+                if ($do->{$nosayer}) {
+                    if (UNIVERSAL::can($do->{$nosayer},"failed") ?
+                        $do->{$nosayer}->failed :
+                        $do->{$nosayer} =~ /^NO/) {
+                        if ($nosayer eq "make_test"
+                            &&
+                            $do->{make_test}{COMMANDID} != $CPAN::CurrentCommandId
+                           ) {
+                            next NOSAYER;
+                        }
+                        $CPAN::Frontend->mywarn("Warning: Prerequisite ".
+                                                "'$need_module => $need_version' ".
+                                                "for '$self->{ID}' failed when ".
+                                                "processing '$do->{ID}' with ".
+                                                "'$nosayer => $do->{$nosayer}'. Continuing, ".
+                                                "but chances to succeed are limited.\n"
+                                               );
+                        next NEED;
+                    } else { # the other guy succeeded
+                        if ($nosayer eq "install") {
+                            # we had this with
+                            # DMAKI/DateTime-Calendar-Chinese-0.05.tar.gz
+                            # 2007-03
+                            $CPAN::Frontend->mywarn("Warning: Prerequisite ".
+                                                    "'$need_module => $need_version' ".
+                                                    "for '$self->{ID}' already installed ".
+                                                    "but installation looks suspicious. ".
+                                                    "Skipping another installation attempt, ".
+                                                    "to prevent looping endlessly.\n"
+                                                   );
+                            next NEED;
+                        }
+                    }
+                }
+            }
         }
         my $needed_as = exists $prereq_pm->{requires}{$need_module} ? "r" : "b";
         push @need, [$need_module,$needed_as];
     }
+    my @unfolded = map { "[".join(",",@$_)."]" } @need;
+    CPAN->debug("returning from unsat_prereq[@unfolded]") if $CPAN::DEBUG;
     @need;
 }
 
@@ -6073,10 +8318,16 @@ sub read_yaml {
     my $yaml = File::Spec->catfile($build_dir,"META.yml");
     $self->debug("yaml[$yaml]") if $CPAN::DEBUG;
     return unless -f $yaml;
-    eval { $self->{yaml_content} = CPAN->_yaml_loadfile($yaml); };
+    eval { $self->{yaml_content} = CPAN->_yaml_loadfile($yaml)->[0]; };
     if ($@) {
-        return; # if we die, then we cannot read our own META.yml
-    }
+        $CPAN::Frontend->mywarn("Could not read ".
+                                "'$yaml'. Falling back to other ".
+                                "methods to determine prerequisites\n");
+        return $self->{yaml_content} = undef; # if we die, then we
+                                              # cannot read YAML's own
+                                              # META.yml
+    }
+    # not "authoritative"
     if (not exists $self->{yaml_content}{dynamic_config}
         or $self->{yaml_content}{dynamic_config}
        ) {
@@ -6090,18 +8341,24 @@ sub read_yaml {
 #-> sub CPAN::Distribution::prereq_pm ;
 sub prereq_pm {
     my($self) = @_;
-    return $self->{prereq_pm} if
-        exists $self->{prereq_pm_detected} && $self->{prereq_pm_detected};
+    $self->{prereq_pm_detected} ||= 0;
+    CPAN->debug("ID[$self->{ID}]prereq_pm_detected[$self->{prereq_pm_detected}]") if $CPAN::DEBUG;
+    return $self->{prereq_pm} if $self->{prereq_pm_detected};
     return unless $self->{writemakefile}  # no need to have succeeded
                                           # but we must have run it
         || $self->{modulebuild};
+    CPAN->debug(sprintf "writemakefile[%s]modulebuild[%s]",
+                $self->{writemakefile}||"",
+                $self->{modulebuild}||"",
+               ) if $CPAN::DEBUG;
     my($req,$breq);
     if (my $yaml = $self->read_yaml) { # often dynamic_config prevents a result here
         $req =  $yaml->{requires} || {};
         $breq =  $yaml->{build_requires} || {};
         undef $req unless ref $req eq "HASH" && %$req;
         if ($req) {
-            if ($yaml->{generated_by} =~ /ExtUtils::MakeMaker version ([\d\._]+)/) {
+            if ($yaml->{generated_by} &&
+                $yaml->{generated_by} =~ /ExtUtils::MakeMaker version ([\d\._]+)/) {
                 my $eummv = do { local $^W = 0; $1+0; };
                 if ($eummv < 6.2501) {
                     # thanks to Slaven for digging that out: MM before
@@ -6138,6 +8395,7 @@ sub prereq_pm {
         if (-f $makefile
             and
             $fh = FileHandle->new("<$makefile\0")) {
+            CPAN->debug("Getting prereq from Makefile") if $CPAN::DEBUG;
             local($/) = "\n";
             while (<$fh>) {
                 last if /MakeMaker post_initialize section/;
@@ -6149,35 +8407,42 @@ sub prereq_pm {
 
                 #  Regexp modified by A.Speer to remember actual version of file
                 #  PREREQ_PM hash key wants, then add to
-                while ( $p =~ m/(?:\s)([\w\:]+)=>q\[(.*?)\],?/g ){
+                while ( $p =~ m/(?:\s)([\w\:]+)=>(q\[.*?\]|undef),?/g ) {
                     # In case a prereq is mentioned twice, complain.
                     if ( defined $req->{$1} ) {
                         warn "Warning: PREREQ_PM mentions $1 more than once, ".
                             "last mention wins";
                     }
-                    $req->{$1} = $2;
+                    my($m,$n) = ($1,$2);
+                    if ($n =~ /^q\[(.*?)\]$/) {
+                        $n = $1;
+                    }
+                    $req->{$m} = $n;
                 }
                 last;
             }
-        } elsif (-f "Build") {
-            if ($CPAN::META->has_inst("Module::Build")) {
-                eval {
-                    $req  = Module::Build->current->requires();
-                    $breq = Module::Build->current->build_requires();
-                };
+        }
+    }
+    unless ($req || $breq) {
+        my $build_dir = $self->{build_dir} or die "Panic: no build_dir?";
+        my $buildfile = File::Spec->catfile($build_dir,"Build");
+        if (-f $buildfile) {
+            CPAN->debug("Found '$buildfile'") if $CPAN::DEBUG;
+            my $build_prereqs = File::Spec->catfile($build_dir,"_build","prereqs");
+            if (-f $build_prereqs) {
+                CPAN->debug("Getting prerequisites from '$build_prereqs'") if $CPAN::DEBUG;
+                my $content = do { local *FH;
+                                   open FH, $build_prereqs
+                                       or $CPAN::Frontend->mydie("Could not open ".
+                                                                 "'$build_prereqs': $!");
+                                   local $/;
+                                   <FH>;
+                               };
+                my $bphash = eval $content;
                 if ($@) {
-                    # HTML::Mason prompted for this with bleadperl@28900 or so
-                    $CPAN::Frontend
-                        ->mywarn(
-                                 sprintf("Warning: while trying to determine ".
-                                         "prerequisites for %s with the help of ".
-                                         "Module::Build the following error ".
-                                         "occurred: '%s'\n\nCannot care for prerequisites\n",
-                                         $self->id,
-                                         $@
-                                        ));
-                    $self->{prereq_pm_detected}++;
-                    return $self->{prereq_pm} = {requires=>{},build_requires=>{}};
+                } else {
+                    $req  = $bphash->{requires} || +{};
+                    $breq = $bphash->{build_requires} || +{};
                 }
             }
         }
@@ -6194,15 +8459,20 @@ sub prereq_pm {
         $req->{"Module::Build"} = 0;
         delete $self->{writemakefile};
     }
-    $self->{prereq_pm_detected}++;
-    return $self->{prereq_pm} = { requires => $req, build_requires => $breq };
+    if ($req || $breq) {
+        $self->{prereq_pm_detected}++;
+        return $self->{prereq_pm} = { requires => $req, build_requires => $breq };
+    }
 }
 
 #-> sub CPAN::Distribution::test ;
 sub test {
     my($self) = @_;
+    if (my $goto = $self->prefs->{goto}) {
+        return $self->goto($goto);
+    }
     $self->make;
-    if ($CPAN::Signal){
+    if ($CPAN::Signal) {
       delete $self->{force_update};
       return;
     }
@@ -6213,56 +8483,70 @@ sub test {
     }
 
     my $make = $self->{modulebuild} ? "Build" : "make";
+
+    local $ENV{PERL5LIB} = defined($ENV{PERL5LIB})
+                           ? $ENV{PERL5LIB}
+                           : ($ENV{PERLLIB} || "");
+
+    $CPAN::META->set_perl5lib;
+    local $ENV{MAKEFLAGS}; # protect us from outer make calls
+
     $CPAN::Frontend->myprint("Running $make test\n");
-    if (my @prereq = $self->unsat_prereq){
-        unless ($prereq[0][0] eq "perl") {
-            return 1 if $self->follow_prereqs(@prereq); # signal success to the queuerunner
-        }
-    }
+
   EXCUSE: {
-       my @e;
-        unless (exists $self->{make} or exists $self->{later}) {
+        my @e;
+        if ($self->{make} or $self->{later}) {
+            # go ahead
+        } else {
             push @e,
                 "Make had some problems, won't test";
         }
 
-       exists $self->{make} and
-           (
-             $self->{make}->can("failed") ?
+        exists $self->{make} and
+            (
+             UNIVERSAL::can($self->{make},"failed") ?
              $self->{make}->failed :
              $self->{make} =~ /^NO/
             ) and push @e, "Can't test without successful make";
-
         $self->{badtestcnt} ||= 0;
-        $self->{badtestcnt} > 0 and
+        if ($self->{badtestcnt} > 0) {
+            require Data::Dumper;
+            CPAN->debug(sprintf "NOREPEAT[%s]", Data::Dumper::Dumper($self)) if $CPAN::DEBUG;
             push @e, "Won't repeat unsuccessful test during this command";
+        }
 
-        exists $self->{later} and length($self->{later}) and
-            push @e, $self->{later};
+        push @e, $self->{later} if $self->{later};
+        push @e, $self->{configure_requires_later} if $self->{configure_requires_later};
 
         if (exists $self->{build_dir}) {
-            if ($CPAN::META->{is_tested}{$self->{build_dir}}
-                &&
-                exists $self->{make_test}
-                &&
-                !(
-                  $self->{make_test}->can("failed") ?
-                  $self->{make_test}->failed :
-                  $self->{make_test} =~ /^NO/
-                 )
-               ) {
-                push @e, "Already tested successfully";
+            if (exists $self->{make_test}) {
+                if (
+                    UNIVERSAL::can($self->{make_test},"failed") ?
+                    $self->{make_test}->failed :
+                    $self->{make_test} =~ /^NO/
+                   ) {
+                    if (
+                        UNIVERSAL::can($self->{make_test},"commandid")
+                        &&
+                        $self->{make_test}->commandid == $CPAN::CurrentCommandId
+                       ) {
+                        push @e, "Has already been tested within this command";
+                    }
+                } else {
+                    push @e, "Has already been tested successfully";
+                }
             }
         } elsif (!@e) {
             push @e, "Has no own directory";
         }
-
-       $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        unless (chdir $self->{build_dir}) {
+            push @e, "Couldn't chdir to '$self->{build_dir}': $!";
+        }
+        $CPAN::Frontend->mywarn(join "", map {"  $_\n"} @e) and return if @e;
     }
-    chdir $self->{'build_dir'} or
-       Carp::croak("Couldn't chdir to $self->{'build_dir'}");
-    $self->debug("Changed directory to $self->{'build_dir'}")
-       if $CPAN::DEBUG;
+    $self->debug("Changed directory to $self->{build_dir}")
+        if $CPAN::DEBUG;
 
     if ($^O eq 'MacOS') {
         Mac::BuildTools::make_test($self);
@@ -6279,70 +8563,132 @@ sub test {
         }
     }
 
-    local $ENV{PERL5LIB} = defined($ENV{PERL5LIB})
-                           ? $ENV{PERL5LIB}
-                           : ($ENV{PERLLIB} || "");
-
-    $CPAN::META->set_perl5lib;
-    local $ENV{MAKEFLAGS}; # protect us from outer make calls
-
     my $system;
-    if ($self->{modulebuild}) {
+    my $prefs_test = $self->prefs->{test};
+    if (my $commandline
+        = exists $prefs_test->{commandline} ? $prefs_test->{commandline} : "") {
+        $system = $commandline;
+        $ENV{PERL} = $^X;
+    } elsif ($self->{modulebuild}) {
         $system = sprintf "%s test", $self->_build_command();
     } else {
         $system = join " ", $self->_make_command(), "test";
     }
+    my $make_test_arg = $self->make_x_arg("test");
+    $system = sprintf("%s%s",
+                      $system,
+                      $make_test_arg ? " $make_test_arg" : "",
+                     );
     my($tests_ok);
-    # XXX fix unini warnings
-    local %ENV = %ENV;
+    my %env;
+    while (my($k,$v) = each %ENV) {
+        next unless defined $v;
+        $env{$k} = $v;
+    }
+    local %ENV = %env;
     if (my $env = $self->prefs->{test}{env}) {
         for my $e (keys %$env) {
             $ENV{$e} = $env->{$e};
         }
     }
-    my $expect = $self->prefs->{test}{expect};
-    if ($expect && @$expect) {
-        $tests_ok = $self->run_via_expect($system,$expect) == 0;
-    } elsif ( $CPAN::Config->{test_report} && 
-              $CPAN::META->has_inst("CPAN::Reporter") ) {
+    my $expect_model = $self->_prefs_with_expect("test");
+    my $want_expect = 0;
+    if ( $expect_model && @{$expect_model->{talk}} ) {
+        my $can_expect = $CPAN::META->has_inst("Expect");
+        if ($can_expect) {
+            $want_expect = 1;
+        } else {
+            $CPAN::Frontend->mywarn("Expect not installed, falling back to ".
+                                    "testing without\n");
+        }
+    }
+    if ($want_expect) {
+        if ($self->_should_report('test')) {
+            $CPAN::Frontend->mywarn("Reporting via CPAN::Reporter is currently ".
+                                    "not supported when distroprefs specify ".
+                                    "an interactive test\n");
+        }
+        $tests_ok = $self->_run_via_expect($system,$expect_model) == 0;
+    } elsif ( $self->_should_report('test') ) {
         $tests_ok = CPAN::Reporter::test($self, $system);
     } else {
         $tests_ok = system($system) == 0;
     }
+    $self->introduce_myself;
     if ( $tests_ok ) {
         {
             my @prereq;
+
+            # local $CPAN::DEBUG = 16; # Distribution
             for my $m (keys %{$self->{sponsored_mods}}) {
-                my $m_obj = CPAN::Shell->expand("Module",$m);
-                my $d_obj = $m_obj->distribution;
-                if ($d_obj) {
-                    if (!$d_obj->{make_test}
-                        ||
-                        $d_obj->{make_test}->failed){
-                        #$m_obj->dump;
-                        push @prereq, $m;
-                    }
+                next unless $self->{sponsored_mods}{$m} > 0;
+                my $m_obj = CPAN::Shell->expand("Module",$m) or next;
+                # XXX we need available_version which reflects
+                # $ENV{PERL5LIB} so that already tested but not yet
+                # installed modules are counted.
+                my $available_version = $m_obj->available_version;
+                my $available_file = $m_obj->available_file;
+                if ($available_version &&
+                    !CPAN::Version->vlt($available_version,$self->{prereq_pm}{$m})
+                   ) {
+                    CPAN->debug("m[$m] good enough available_version[$available_version]")
+                        if $CPAN::DEBUG;
+                } elsif ($available_file
+                         && (
+                             !$self->{prereq_pm}{$m}
+                             ||
+                             $self->{prereq_pm}{$m} == 0
+                            )
+                        ) {
+                    # lex Class::Accessor::Chained::Fast which has no $VERSION
+                    CPAN->debug("m[$m] have available_file[$available_file]")
+                        if $CPAN::DEBUG;
+                } else {
+                    push @prereq, $m;
                 }
             }
-            if (@prereq){
+            if (@prereq) {
                 my $cnt = @prereq;
                 my $which = join ",", @prereq;
-                my $verb = $cnt == 1 ? "one dependency not OK ($which)" :
+                my $but = $cnt == 1 ? "one dependency not OK ($which)" :
                     "$cnt dependencies missing ($which)";
-                $CPAN::Frontend->mywarn("Tests succeeded but $verb\n");
-                $self->{make_test} = CPAN::Distrostatus->new("NO -- $verb");
-                return;
+                $CPAN::Frontend->mywarn("Tests succeeded but $but\n");
+                $self->{make_test} = CPAN::Distrostatus->new("NO $but");
+                $self->store_persistent_state;
+                return $self->goodbye("[dependencies] -- NA");
             }
         }
 
         $CPAN::Frontend->myprint("  $system -- OK\n");
-        $CPAN::META->is_tested($self->{'build_dir'});
         $self->{make_test} = CPAN::Distrostatus->new("YES");
+        $CPAN::META->is_tested($self->{build_dir},$self->{make_test}{TIME});
+        # probably impossible to need the next line because badtestcnt
+        # has a lifespan of one command
+        delete $self->{badtestcnt};
     } else {
         $self->{make_test} = CPAN::Distrostatus->new("NO");
         $self->{badtestcnt}++;
         $CPAN::Frontend->mywarn("  $system -- NOT OK\n");
+        CPAN::Shell->optprint("hint",sprintf "//hint// To get more information about failing tests, try:
+  reports %s\n", $self->pretty_id);
+    }
+    $self->store_persistent_state;
+}
+
+sub _prefs_with_expect {
+    my($self,$where) = @_;
+    return unless my $prefs = $self->prefs;
+    return unless my $where_prefs = $prefs->{$where};
+    if ($where_prefs->{expect}) {
+        return {
+                mode => "deterministic",
+                timeout => 15,
+                talk => $where_prefs->{expect},
+               };
+    } elsif ($where_prefs->{"eexpect"}) {
+        return $where_prefs->{"eexpect"};
     }
+    return;
 }
 
 #-> sub CPAN::Distribution::clean ;
@@ -6359,15 +8705,21 @@ sub clean {
         $CPAN::Frontend->mywarn("Distribution has no own directory, nothing to do.\n");
         return 1;
     }
+    if (exists $self->{writemakefile}
+        and $self->{writemakefile}->failed
+       ) {
+        $CPAN::Frontend->mywarn("No Makefile, don't know how to 'make clean'\n");
+        return 1;
+    }
   EXCUSE: {
-       my @e;
+        my @e;
         exists $self->{make_clean} and $self->{make_clean} eq "YES" and
             push @e, "make clean already called once";
-       $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
     }
-    chdir $self->{'build_dir'} or
-       Carp::croak("Couldn't chdir to $self->{'build_dir'}");
-    $self->debug("Changed directory to $self->{'build_dir'}") if $CPAN::DEBUG;
+    chdir $self->{build_dir} or
+        Carp::confess("Couldn't chdir to $self->{build_dir}: $!");
+    $self->debug("Changed directory to $self->{build_dir}") if $CPAN::DEBUG;
 
     if ($^O eq 'MacOS') {
         Mac::BuildTools::make_clean($self);
@@ -6377,7 +8729,7 @@ sub clean {
     my $system;
     if ($self->{modulebuild}) {
         unless (-f "Build") {
-            my $cwd = Cwd::cwd;
+            my $cwd = CPAN::anycwd();
             $CPAN::Frontend->mywarn("Alert: no Build file available for 'clean $self->{id}".
                                     " in cwd[$cwd]. Danger, Will Robinson!");
             $CPAN::Frontend->mysleep(5);
@@ -6386,7 +8738,9 @@ sub clean {
     } else {
         $system  = join " ", $self->_make_command(), "clean";
     }
-    if (system($system) == 0) {
+    my $system_ok = system($system) == 0;
+    $self->introduce_myself;
+    if ( $system_ok ) {
       $CPAN::Frontend->myprint("  $system -- OK\n");
 
       # $self->force;
@@ -6417,32 +8771,69 @@ sub clean {
       # $self->force("make"); # so that this directory won't be used again
 
     }
+    $self->store_persistent_state;
+}
+
+#-> sub CPAN::Distribution::goto ;
+sub goto {
+    my($self,$goto) = @_;
+    $goto = $self->normalize($goto);
+    my $why = sprintf(
+                      "Goto '$goto' via prefs file '%s' doc %d",
+                      $self->{prefs_file},
+                      $self->{prefs_file_doc},
+                     );
+    $self->{unwrapped} = CPAN::Distrostatus->new("NO $why");
+    # 2007-07-16 akoenig : Better than NA would be if we could inherit
+    # the status of the $goto distro but given the exceptional nature
+    # of 'goto' I feel reluctant to implement it
+    my $goodbye_message = "[goto] -- NA $why";
+    $self->goodbye($goodbye_message);
+
+    # inject into the queue
+
+    CPAN::Queue->delete($self->id);
+    CPAN::Queue->jumpqueue({qmod => $goto, reqtype => $self->{reqtype}});
+
+    # and run where we left off
+
+    my($method) = (caller(1))[3];
+    CPAN->instance("CPAN::Distribution",$goto)->$method();
+    CPAN::Queue->delete_first($goto);
 }
 
 #-> sub CPAN::Distribution::install ;
 sub install {
     my($self) = @_;
-    $self->test;
-    if ($CPAN::Signal){
+    if (my $goto = $self->prefs->{goto}) {
+        return $self->goto($goto);
+    }
+    # $DB::single=1;
+    unless ($self->{badtestcnt}) {
+        $self->test;
+    }
+    if ($CPAN::Signal) {
       delete $self->{force_update};
       return;
     }
     my $make = $self->{modulebuild} ? "Build" : "make";
     $CPAN::Frontend->myprint("Running $make install\n");
   EXCUSE: {
-       my @e;
-       unless (exists $self->{make} or exists $self->{later}) {
+        my @e;
+        if ($self->{make} or $self->{later}) {
+            # go ahead
+        } else {
             push @e,
                 "Make had some problems, won't install";
         }
 
-       exists $self->{make} and
-           (
-             $self->{make}->can("failed") ?
+        exists $self->{make} and
+            (
+             UNIVERSAL::can($self->{make},"failed") ?
              $self->{make}->failed :
              $self->{make} =~ /^NO/
             ) and
-               push @e, "Make had returned bad status, install seems impossible";
+            push @e, "Make had returned bad status, install seems impossible";
 
         if (exists $self->{build_dir}) {
         } elsif (!@e) {
@@ -6450,12 +8841,12 @@ sub install {
         }
 
         if (exists $self->{make_test} and
-           (
-             $self->{make_test}->can("failed") ?
+            (
+             UNIVERSAL::can($self->{make_test},"failed") ?
              $self->{make_test}->failed :
              $self->{make_test} =~ /^NO/
-            )){
-           if ($self->{force_update}) {
+            )) {
+            if ($self->{force_update}) {
                 $self->{make_test}->text("FAILED but failure ignored because ".
                                          "'force' in effect");
             } else {
@@ -6463,27 +8854,31 @@ sub install {
                     "won't install without force"
             }
         }
-       if (exists $self->{'install'}) {
-            if ($self->{'install'}->can("text") ?
-                $self->{'install'}->text eq "YES" :
-                $self->{'install'} =~ /^YES/
+        if (exists $self->{install}) {
+            if (UNIVERSAL::can($self->{install},"text") ?
+                $self->{install}->text eq "YES" :
+                $self->{install} =~ /^YES/
                ) {
-                push @e, "Already done";
+                $CPAN::Frontend->myprint("  Already done\n");
+                $CPAN::META->is_installed($self->{build_dir});
+                return 1;
             } else {
                 # comment in Todo on 2006-02-11; maybe retry?
                 push @e, "Already tried without success";
             }
         }
 
-        exists $self->{later} and length($self->{later}) and
-            push @e, $self->{later};
+        push @e, $self->{later} if $self->{later};
+        push @e, $self->{configure_requires_later} if $self->{configure_requires_later};
 
-       $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        $CPAN::Frontend->myprint(join "", map {"  $_\n"} @e) and return if @e;
+        unless (chdir $self->{build_dir}) {
+            push @e, "Couldn't chdir to '$self->{build_dir}': $!";
+        }
+        $CPAN::Frontend->mywarn(join "", map {"  $_\n"} @e) and return if @e;
     }
-    chdir $self->{'build_dir'} or
-       Carp::croak("Couldn't chdir to $self->{'build_dir'}");
-    $self->debug("Changed directory to $self->{'build_dir'}")
-       if $CPAN::DEBUG;
+    $self->debug("Changed directory to $self->{build_dir}")
+        if $CPAN::DEBUG;
 
     if ($^O eq 'MacOS') {
         Mac::BuildTools::make_install($self);
@@ -6491,7 +8886,10 @@ sub install {
     }
 
     my $system;
-    if ($self->{modulebuild}) {
+    if (my $commandline = $self->prefs->{install}{commandline}) {
+        $system = $commandline;
+        $ENV{PERL} = $^X;
+    } elsif ($self->{modulebuild}) {
         my($mbuild_install_build_command) =
             exists $CPAN::HandleConfig::keys{mbuild_install_build_command} &&
                 $CPAN::Config->{mbuild_install_build_command} ?
@@ -6503,9 +8901,9 @@ sub install {
                          );
     } else {
         my($make_install_make_command) =
-            $self->prefs->{cpanconfig}{make_install_make_command}
-                || $CPAN::Config->{make_install_make_command}
-                    || $self->_make_command();
+            CPAN::HandleConfig->prefs_lookup($self,
+                                             q{make_install_make_command})
+                  || $self->_make_command();
         $system = sprintf("%s install %s",
                           $make_install_make_command,
                           $CPAN::Config->{make_install_arg},
@@ -6513,8 +8911,8 @@ sub install {
     }
 
     my($stderr) = $^O eq "MSWin32" ? "" : " 2>&1 ";
-    my $brip = $self->prefs->{cpanconfig}{build_requires_install_policy};
-    $brip ||= $CPAN::Config->{build_requires_install_policy};
+    my $brip = CPAN::HandleConfig->prefs_lookup($self,
+                                                q{build_requires_install_policy});
     $brip ||="ask/yes";
     my $id = $self->id;
     my $reqtype = $self->{reqtype} ||= "c"; # in doubt it was a command
@@ -6539,32 +8937,39 @@ sub install {
         delete $self->{force_update};
         return;
     }
+    local $ENV{PERL5LIB} = defined($ENV{PERL5LIB})
+                           ? $ENV{PERL5LIB}
+                           : ($ENV{PERLLIB} || "");
+
+    $CPAN::META->set_perl5lib;
     my($pipe) = FileHandle->new("$system $stderr |");
     my($makeout) = "";
-    while (<$pipe>){
-       print $_; # intentionally NOT use Frontend->myprint because it
+    while (<$pipe>) {
+        print $_; # intentionally NOT use Frontend->myprint because it
                   # looks irritating when we markup in color what we
                   # just pass through from an external program
-       $makeout .= $_;
+        $makeout .= $_;
     }
     $pipe->close;
-    if ($?==0) {
+    my $close_ok = $? == 0;
+    $self->introduce_myself;
+    if ( $close_ok ) {
         $CPAN::Frontend->myprint("  $system -- OK\n");
         $CPAN::META->is_installed($self->{build_dir});
-        return $self->{install} = CPAN::Distrostatus->new("YES");
+        $self->{install} = CPAN::Distrostatus->new("YES");
     } else {
         $self->{install} = CPAN::Distrostatus->new("NO");
         $CPAN::Frontend->mywarn("  $system -- NOT OK\n");
         my $mimc =
-            $self->prefs->{cpanconfig}{make_install_make_command} ||
-                $CPAN::Config->{make_install_make_command};
+            CPAN::HandleConfig->prefs_lookup($self,
+                                             q{make_install_make_command});
         if (
             $makeout =~ /permission/s
             && $> > 0
             && (
                 ! $mimc
-                || $mimc eq ($self->prefs->{cpanconfig}{make}
-                             || $CPAN::Config->{make})
+                || $mimc eq (CPAN::HandleConfig->prefs_lookup($self,
+                                                              q{make}))
                )
            ) {
             $CPAN::Frontend->myprint(
@@ -6578,11 +8983,18 @@ sub install {
         }
     }
     delete $self->{force_update};
+    # $DB::single = 1;
+    $self->store_persistent_state;
+}
+
+sub introduce_myself {
+    my($self) = @_;
+    $CPAN::Frontend->myprint(sprintf("  %s\n",$self->pretty_id));
 }
 
 #-> sub CPAN::Distribution::dir ;
 sub dir {
-    shift->{'build_dir'};
+    shift->{build_dir};
 }
 
 #-> sub CPAN::Distribution::perldoc ;
@@ -6603,13 +9015,20 @@ sub _check_binary {
     $CPAN::Frontend->myprint(qq{ + _check_binary($binary)\n})
       if $CPAN::DEBUG;
 
-    local *README;
-    $pid = open README, "which $binary|"
-      or $CPAN::Frontend->mydie(qq{Could not fork 'which $binary': $!});
-    while (<README>) {
-       $out .= $_;
+    if ($CPAN::META->has_inst("File::Which")) {
+        return File::Which::which($binary);
+    } else {
+        local *README;
+        $pid = open README, "which $binary|"
+            or $CPAN::Frontend->mywarn(qq{Could not fork 'which $binary': $!\n});
+        return unless $pid;
+        while (<README>) {
+            $out .= $_;
+        }
+        close README
+            or $CPAN::Frontend->mywarn("Could not run 'which $binary': $!\n")
+                and return;
     }
-    close README or die "Could not run 'which $binary': $!";
 
     $CPAN::Frontend->myprint(qq{   + $out \n})
       if $CPAN::DEBUG && $out;
@@ -6626,30 +9045,30 @@ sub _display_url {
       if $CPAN::DEBUG;
 
     # should we define it in the config instead?
-    my $html_converter = "html2text";
+    my $html_converter = "html2text.pl";
 
     my $web_browser = $CPAN::Config->{'lynx'} || undef;
     my $web_browser_out = $web_browser
-      ? CPAN::Distribution->_check_binary($self,$web_browser)
-       : undef;
+        ? CPAN::Distribution->_check_binary($self,$web_browser)
+        : undef;
 
     if ($web_browser_out) {
         # web browser found, run the action
-       my $browser = CPAN::HandleConfig->safe_quote($CPAN::Config->{'lynx'});
+        my $browser = CPAN::HandleConfig->safe_quote($CPAN::Config->{'lynx'});
         $CPAN::Frontend->myprint(qq{system[$browser $url]})
-         if $CPAN::DEBUG;
-       $CPAN::Frontend->myprint(qq{
+            if $CPAN::DEBUG;
+        $CPAN::Frontend->myprint(qq{
 Displaying URL
   $url
 with browser $browser
 });
-       $CPAN::Frontend->mysleep(1);
+        $CPAN::Frontend->mysleep(1);
         system("$browser $url");
-       if ($saved_file) { 1 while unlink($saved_file) }
+        if ($saved_file) { 1 while unlink($saved_file) }
     } else {
         # web browser not found, let's try text only
-       my $html_converter_out =
-         CPAN::Distribution->_check_binary($self,$html_converter);
+        my $html_converter_out =
+            CPAN::Distribution->_check_binary($self,$html_converter);
         $html_converter_out = CPAN::HandleConfig->safe_quote($html_converter_out);
 
         if ($html_converter_out ) {
@@ -6659,12 +9078,13 @@ with browser $browser
                 unless defined($saved_file);
 
             local *README;
-           $pid = open README, "$html_converter $saved_file |"
-             or $CPAN::Frontend->mydie(qq{
+            $pid = open README, "$html_converter $saved_file |"
+                or $CPAN::Frontend->mydie(qq{
 Could not fork '$html_converter $saved_file': $!});
             my($fh,$filename);
             if ($CPAN::META->has_inst("File::Temp")) {
                 $fh = File::Temp->new(
+                                      dir      => File::Spec->tmpdir,
                                       template => 'cpan_htmlconvert_XXXX',
                                       suffix => '.txt',
                                       unlink => 0,
@@ -6724,6 +9144,7 @@ sub _getsave_url {
     my($fh,$filename);
     if ($CPAN::META->has_inst("File::Temp")) {
         $fh = File::Temp->new(
+                              dir      => File::Spec->tmpdir,
                               template => "cpan_getsave_url_XXXX",
                               suffix => ".html",
                               unlink => 0,
@@ -6777,7 +9198,7 @@ sub _getsave_url {
     }
 }
 
-# sub CPAN::Distribution::_build_command
+#-> sub CPAN::Distribution::_build_command
 sub _build_command {
     my($self) = @_;
     if ($^O eq "MSWin32") { # special code needed at least up to
@@ -6789,48 +9210,196 @@ sub _build_command {
     return "./Build";
 }
 
-package CPAN::Bundle;
-use strict;
+#-> sub CPAN::Distribution::_should_report
+sub _should_report {
+    my($self, $phase) = @_;
+    die "_should_report() requires a 'phase' argument"
+        if ! defined $phase;
 
-sub look {
-    my $self = shift;
-    $CPAN::Frontend->myprint($self->as_string);
-}
+    # configured
+    my $test_report = CPAN::HandleConfig->prefs_lookup($self,
+                                                       q{test_report});
+    return unless $test_report;
 
-sub undelay {
-    my $self = shift;
-    delete $self->{later};
-    for my $c ( $self->contains ) {
-        my $obj = CPAN::Shell->expandany($c) or next;
-        $obj->undelay;
-    }
-}
+    # don't repeat if we cached a result
+    return $self->{should_report}
+        if exists $self->{should_report};
 
-# mark as dirty/clean
-#-> sub CPAN::Bundle::color_cmd_tmps ;
-sub color_cmd_tmps {
-    my($self) = shift;
-    my($depth) = shift || 0;
-    my($color) = shift || 0;
-    my($ancestors) = shift || [];
-    # a module needs to recurse to its cpan_file, a distribution needs
-    # to recurse into its prereq_pms, a bundle needs to recurse into its modules
+    # available
+    if ( ! $CPAN::META->has_inst("CPAN::Reporter")) {
+        $CPAN::Frontend->mywarn(
+            "CPAN::Reporter not installed.  No reports will be sent.\n"
+        );
+        return $self->{should_report} = 0;
+    }
 
-    return if exists $self->{incommandcolor}
-        && $self->{incommandcolor}==$color;
-    if ($depth>=100){
-        $CPAN::Frontend->mydie(CPAN::Exception::RecursiveDependency->new($ancestors));
+    # capable
+    my $crv = CPAN::Reporter->VERSION;
+    if ( CPAN::Version->vlt( $crv, 0.99 ) ) {
+        # don't cache $self->{should_report} -- need to check each phase
+        if ( $phase eq 'test' ) {
+            return 1;
+        }
+        else {
+            $CPAN::Frontend->mywarn(
+                "Reporting on the '$phase' phase requires CPAN::Reporter 0.99, but \n" .
+                "you only have version $crv\.  Only 'test' phase reports will be sent.\n"
+            );
+            return;
+        }
     }
-    # warn "color_cmd_tmps $depth $color " . $self->id; # sleep 1;
 
-    for my $c ( $self->contains ) {
-        my $obj = CPAN::Shell->expandany($c) or next;
+    # appropriate
+    if ($self->is_dot_dist) {
+        $CPAN::Frontend->mywarn("Reporting via CPAN::Reporter is disabled ".
+                                "for local directories\n");
+        return $self->{should_report} = 0;
+    }
+    if ($self->prefs->{patches}
+        &&
+        @{$self->prefs->{patches}}
+        &&
+        $self->{patched}
+       ) {
+        $CPAN::Frontend->mywarn("Reporting via CPAN::Reporter is disabled ".
+                                "when the source has been patched\n");
+        return $self->{should_report} = 0;
+    }
+
+    # proceed and cache success
+    return $self->{should_report} = 1;
+}
+
+#-> sub CPAN::Distribution::reports
+sub reports {
+    my($self) = @_;
+    my $pathname = $self->id;
+    $CPAN::Frontend->myprint("Distribution: $pathname\n");
+
+    unless ($CPAN::META->has_inst("CPAN::DistnameInfo")) {
+        $CPAN::Frontend->mydie("CPAN::DistnameInfo not installed; cannot continue");
+    }
+    unless ($CPAN::META->has_usable("LWP")) {
+        $CPAN::Frontend->mydie("LWP not installed; cannot continue");
+    }
+    unless ($CPAN::META->has_inst("File::Temp")) {
+        $CPAN::Frontend->mydie("File::Temp not installed; cannot continue");
+    }
+
+    my $d = CPAN::DistnameInfo->new($pathname);
+
+    my $dist      = $d->dist;      # "CPAN-DistnameInfo"
+    my $version   = $d->version;   # "0.02"
+    my $maturity  = $d->maturity;  # "released"
+    my $filename  = $d->filename;  # "CPAN-DistnameInfo-0.02.tar.gz"
+    my $cpanid    = $d->cpanid;    # "GBARR"
+    my $distvname = $d->distvname; # "CPAN-DistnameInfo-0.02"
+
+    my $url = sprintf "http://cpantesters.perl.org/show/%s.yaml", $dist;
+
+    CPAN::LWP::UserAgent->config;
+    my $Ua;
+    eval { $Ua = CPAN::LWP::UserAgent->new; };
+    if ($@) {
+        $CPAN::Frontend->mydie("CPAN::LWP::UserAgent->new dies with $@\n");
+    }
+    $CPAN::Frontend->myprint("Fetching '$url'...");
+    my $resp = $Ua->get($url);
+    unless ($resp->is_success) {
+        $CPAN::Frontend->mydie(sprintf "Could not download '%s': %s\n", $url, $resp->code);
+    }
+    $CPAN::Frontend->myprint("DONE\n\n");
+    my $yaml = $resp->content;
+    # was fuer ein Umweg!
+    my $fh = File::Temp->new(
+                             dir      => File::Spec->tmpdir,
+                             template => 'cpan_reports_XXXX',
+                             suffix => '.yaml',
+                             unlink => 0,
+                            );
+    my $tfilename = $fh->filename;
+    print $fh $yaml;
+    close $fh or $CPAN::Frontend->mydie("Could not close '$tfilename': $!");
+    my $unserialized = CPAN->_yaml_loadfile($tfilename)->[0];
+    unlink $tfilename or $CPAN::Frontend->mydie("Could not unlink '$tfilename': $!");
+    my %other_versions;
+    my $this_version_seen;
+    for my $rep (@$unserialized) {
+        my $rversion = $rep->{version};
+        if ($rversion eq $version) {
+            unless ($this_version_seen++) {
+                $CPAN::Frontend->myprint ("$rep->{version}:\n");
+            }
+            $CPAN::Frontend->myprint
+                (sprintf("%1s%1s%-4s %s on %s %s (%s)\n",
+                         $rep->{archname} eq $Config::Config{archname}?"*":"",
+                         $rep->{action}eq"PASS"?"+":$rep->{action}eq"FAIL"?"-":"",
+                         $rep->{action},
+                         $rep->{perl},
+                         ucfirst $rep->{osname},
+                         $rep->{osvers},
+                         $rep->{archname},
+                        ));
+        } else {
+            $other_versions{$rep->{version}}++;
+        }
+    }
+    unless ($this_version_seen) {
+        $CPAN::Frontend->myprint("No reports found for version '$version'
+Reports for other versions:\n");
+        for my $v (sort keys %other_versions) {
+            $CPAN::Frontend->myprint(" $v\: $other_versions{$v}\n");
+        }
+    }
+    $url =~ s/\.yaml/.html/;
+    $CPAN::Frontend->myprint("See $url for details\n");
+}
+
+package CPAN::Bundle;
+use strict;
+
+sub look {
+    my $self = shift;
+    $CPAN::Frontend->myprint($self->as_string);
+}
+
+#-> CPAN::Bundle::undelay
+sub undelay {
+    my $self = shift;
+    delete $self->{later};
+    for my $c ( $self->contains ) {
+        my $obj = CPAN::Shell->expandany($c) or next;
+        $obj->undelay;
+    }
+}
+
+# mark as dirty/clean
+#-> sub CPAN::Bundle::color_cmd_tmps ;
+sub color_cmd_tmps {
+    my($self) = shift;
+    my($depth) = shift || 0;
+    my($color) = shift || 0;
+    my($ancestors) = shift || [];
+    # a module needs to recurse to its cpan_file, a distribution needs
+    # to recurse into its prereq_pms, a bundle needs to recurse into its modules
+
+    return if exists $self->{incommandcolor}
+        && $color==1
+        && $self->{incommandcolor}==$color;
+    if ($depth>=$CPAN::MAX_RECURSION) {
+        die(CPAN::Exception::RecursiveDependency->new($ancestors));
+    }
+    # warn "color_cmd_tmps $depth $color " . $self->id; # sleep 1;
+
+    for my $c ( $self->contains ) {
+        my $obj = CPAN::Shell->expandany($c) or next;
         CPAN->debug("c[$c]obj[$obj]") if $CPAN::DEBUG;
         $obj->color_cmd_tmps($depth+1,$color,[@$ancestors, $self->id]);
     }
-    if ($color==0) {
-        delete $self->{badtestcnt};
-    }
+    # never reached code?
+    #if ($color==0) {
+      #delete $self->{badtestcnt};
+    #}
     $self->{incommandcolor} = $color;
 }
 
@@ -6864,14 +9433,15 @@ sub contains {
         }
         my $dist = $CPAN::META->instance('CPAN::Distribution',
                                          $self->cpan_file);
+        $self->debug("before get id[$dist->{ID}]") if $CPAN::DEBUG;
         $dist->get;
-        $self->debug("id[$dist->{ID}]") if $CPAN::DEBUG;
+        $self->debug("after get id[$dist->{ID}]") if $CPAN::DEBUG;
         my($todir) = $CPAN::Config->{'cpan_home'};
         my(@me,$from,$to,$me);
         @me = split /::/, $self->id;
         $me[-1] .= ".pm";
         $me = File::Spec->catfile(@me);
-        $from = $self->find_bundle_file($dist->{'build_dir'},join('/',@me));
+        $from = $self->find_bundle_file($dist->{build_dir},join('/',@me));
         $to = File::Spec->catfile($todir,$me);
         File::Path::mkpath(File::Basename::dirname($to));
         File::Copy::copy($from, $to)
@@ -6919,28 +9489,28 @@ sub find_bundle_file {
 ###    return $bu if -f $bu;
     my $manifest = File::Spec->catfile($where,"MANIFEST");
     unless (-f $manifest) {
-       require ExtUtils::Manifest;
-       my $cwd = CPAN::anycwd();
-       $self->safe_chdir($where);
-       ExtUtils::Manifest::mkmanifest();
-       $self->safe_chdir($cwd);
+        require ExtUtils::Manifest;
+        my $cwd = CPAN::anycwd();
+        $self->safe_chdir($where);
+        ExtUtils::Manifest::mkmanifest();
+        $self->safe_chdir($cwd);
     }
     my $fh = FileHandle->new($manifest)
-       or Carp::croak("Couldn't open $manifest: $!");
+        or Carp::croak("Couldn't open $manifest: $!");
     local($/) = "\n";
     my $bundle_filename = $what;
     $bundle_filename =~ s|Bundle.*/||;
     my $bundle_unixpath;
     while (<$fh>) {
-       next if /^\s*\#/;
-       my($file) = /(\S+)/;
-       if ($file =~ m|\Q$what\E$|) {
-           $bundle_unixpath = $file;
-           # return File::Spec->catfile($where,$bundle_unixpath); # bad
-           last;
-       }
-       # retry if she managed to have no Bundle directory
-       $bundle_unixpath = $file if $file =~ m|\Q$bundle_filename\E$|;
+        next if /^\s*\#/;
+        my($file) = /(\S+)/;
+        if ($file =~ m|\Q$what\E$|) {
+            $bundle_unixpath = $file;
+            # return File::Spec->catfile($where,$bundle_unixpath); # bad
+            last;
+        }
+        # retry if she managed to have no Bundle directory
+        $bundle_unixpath = $file if $file =~ m|\Q$bundle_filename\E$|;
     }
     return File::Spec->catfile($where, split /\//, $bundle_unixpath)
         if $bundle_unixpath;
@@ -6986,79 +9556,24 @@ sub rematein {
     $self->debug("self[$self] meth[$meth]") if $CPAN::DEBUG;
     my($id) = $self->id;
     Carp::croak "Can't $meth $id, don't have an associated bundle file. :-(\n"
-       unless $self->inst_file || $self->cpan_file;
+        unless $self->inst_file || $self->cpan_file;
     my($s,%fail);
     for $s ($self->contains) {
-       my($type) = $s =~ m|/| ? 'CPAN::Distribution' :
-           $s =~ m|^Bundle::| ? 'CPAN::Bundle' : 'CPAN::Module';
-       if ($type eq 'CPAN::Distribution') {
-           $CPAN::Frontend->mywarn(qq{
+        my($type) = $s =~ m|/| ? 'CPAN::Distribution' :
+            $s =~ m|^Bundle::| ? 'CPAN::Bundle' : 'CPAN::Module';
+        if ($type eq 'CPAN::Distribution') {
+            $CPAN::Frontend->mywarn(qq{
 The Bundle }.$self->id.qq{ contains
-explicitly a file $s.
+explicitly a file '$s'.
+Going to $meth that.
 });
-           $CPAN::Frontend->mysleep(3);
-       }
-       # possibly noisy action:
+            $CPAN::Frontend->mysleep(5);
+        }
+        # possibly noisy action:
         $self->debug("type[$type] s[$s]") if $CPAN::DEBUG;
-       my $obj = $CPAN::META->instance($type,$s);
+        my $obj = $CPAN::META->instance($type,$s);
         $obj->{reqtype} = $self->{reqtype};
-       $obj->$meth();
-        if ($obj->isa('CPAN::Bundle')
-            &&
-            exists $obj->{install_failed}
-            &&
-            ref($obj->{install_failed}) eq "HASH"
-           ) {
-          for (keys %{$obj->{install_failed}}) {
-            $self->{install_failed}{$_} = undef; # propagate faiure up
-                                                 # to me in a
-                                                 # recursive call
-            $fail{$s} = 1; # the bundle itself may have succeeded but
-                           # not all children
-          }
-        } else {
-          my $success;
-          $success = $obj->can("uptodate") ? $obj->uptodate : 0;
-          $success ||= $obj->{'install'} && $obj->{'install'} eq "YES";
-          if ($success) {
-            delete $self->{install_failed}{$s};
-          } else {
-            $fail{$s} = 1;
-          }
-        }
-    }
-
-    # recap with less noise
-    if ( $meth eq "install" ) {
-       if (%fail) {
-           require Text::Wrap;
-           my $raw = sprintf(qq{Bundle summary:
-The following items in bundle %s had installation problems:},
-                             $self->id
-                            );
-           $CPAN::Frontend->myprint(Text::Wrap::fill("","",$raw));
-           $CPAN::Frontend->myprint("\n");
-           my $paragraph = "";
-            my %reported;
-           for $s ($self->contains) {
-              if ($fail{$s}){
-               $paragraph .= "$s ";
-                $self->{install_failed}{$s} = undef;
-                $reported{$s} = undef;
-              }
-           }
-            my $report_propagated;
-            for $s (sort keys %{$self->{install_failed}}) {
-              next if exists $reported{$s};
-              $paragraph .= "and the following items had problems
-during recursive bundle calls: " unless $report_propagated++;
-              $paragraph .= "$s ";
-            }
-           $CPAN::Frontend->myprint(Text::Wrap::fill("  ","  ",$paragraph));
-           $CPAN::Frontend->myprint("\n");
-       } else {
-           $self->{'install'} = 'YES';
-       }
+        $obj->$meth();
     }
 }
 
@@ -7070,6 +9585,8 @@ sub xs_file {
 }
 
 #-> sub CPAN::Bundle::force ;
+sub fforce   { shift->rematein('fforce',@_); }
+#-> sub CPAN::Bundle::force ;
 sub force   { shift->rematein('force',@_); }
 #-> sub CPAN::Bundle::notest ;
 sub notest  { shift->rematein('notest',@_); }
@@ -7080,7 +9597,7 @@ sub make    { shift->rematein('make',@_); }
 #-> sub CPAN::Bundle::test ;
 sub test    {
     my $self = shift;
-    $self->{badtestcnt} ||= 0;
+    $self->{badtestcnt} ||= 0;
     $self->rematein('test',@_);
 }
 #-> sub CPAN::Bundle::install ;
@@ -7116,26 +9633,27 @@ package CPAN::Module;
 use strict;
 
 # Accessors
-# sub CPAN::Module::userid
+#-> sub CPAN::Module::userid
 sub userid {
     my $self = shift;
     my $ro = $self->ro;
     return unless $ro;
     return $ro->{userid} || $ro->{CPAN_USERID};
 }
-# sub CPAN::Module::description
+#-> sub CPAN::Module::description
 sub description {
     my $self = shift;
     my $ro = $self->ro or return "";
     $ro->{description}
 }
 
+#-> sub CPAN::Module::distribution
 sub distribution {
     my($self) = @_;
     CPAN::Shell->expand("Distribution",$self->cpan_file);
 }
 
-# sub CPAN::Module::undelay
+#-> sub CPAN::Module::undelay
 sub undelay {
     my $self = shift;
     delete $self->{later};
@@ -7154,19 +9672,52 @@ sub color_cmd_tmps {
     # a module needs to recurse to its cpan_file
 
     return if exists $self->{incommandcolor}
+        && $color==1
         && $self->{incommandcolor}==$color;
-    return if $depth>=1 && $self->uptodate;
-    if ($depth>=100){
-        $CPAN::Frontend->mydie(CPAN::Exception::RecursiveDependency->new($ancestors));
+    return if $color==0 && !$self->{incommandcolor};
+    if ($color>=1) {
+        if ( $self->uptodate ) {
+            $self->{incommandcolor} = $color;
+            return;
+        } elsif (my $have_version = $self->available_version) {
+            # maybe what we have is good enough
+            if (@$ancestors) {
+                my $who_asked_for_me = $ancestors->[-1];
+                my $obj = CPAN::Shell->expandany($who_asked_for_me);
+                if (0) {
+                } elsif ($obj->isa("CPAN::Bundle")) {
+                    # bundles cannot specify a minimum version
+                    return;
+                } elsif ($obj->isa("CPAN::Distribution")) {
+                    if (my $prereq_pm = $obj->prereq_pm) {
+                        for my $k (keys %$prereq_pm) {
+                            if (my $want_version = $prereq_pm->{$k}{$self->id}) {
+                                if (CPAN::Version->vcmp($have_version,$want_version) >= 0) {
+                                    $self->{incommandcolor} = $color;
+                                    return;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    } else {
+        $self->{incommandcolor} = $color; # set me before recursion,
+                                          # so we can break it
+    }
+    if ($depth>=$CPAN::MAX_RECURSION) {
+        die(CPAN::Exception::RecursiveDependency->new($ancestors));
     }
     # warn "color_cmd_tmps $depth $color " . $self->id; # sleep 1;
 
     if ( my $dist = CPAN::Shell->expand("Distribution", $self->cpan_file) ) {
         $dist->color_cmd_tmps($depth+1,$color,[@$ancestors, $self->id]);
     }
-    if ($color==0) {
-        delete $self->{badtestcnt};
-    }
+    # unreached code?
+    # if ($color==0) {
+    #    delete $self->{badtestcnt};
+    # }
     $self->{incommandcolor} = $color;
 }
 
@@ -7201,7 +9752,7 @@ sub as_glimpse {
                      $color_on,
                      $self->id,
                      $color_off,
-                    ($self->distribution ?
+                     ($self->distribution ?
                       $self->distribution->pretty_id :
                       $self->cpan_userid
                      ),
@@ -7213,20 +9764,25 @@ sub as_glimpse {
 sub dslip_status {
     my($self) = @_;
     my($stat);
+    # development status
     @{$stat->{D}}{qw,i c a b R M S,}     = qw,idea
                                               pre-alpha alpha beta released
                                               mature standard,;
+    # support level
     @{$stat->{S}}{qw,m d u n a,}         = qw,mailing-list
                                               developer comp.lang.perl.*
                                               none abandoned,;
+    # language
     @{$stat->{L}}{qw,p c + o h,}         = qw,perl C C++ other hybrid,;
+    # interface
     @{$stat->{I}}{qw,f r O p h n,}       = qw,functions
                                               references+ties
                                               object-oriented pragma
                                               hybrid none,;
-    @{$stat->{P}}{qw,p g l b a o d r n,} = qw,Standard-Perl
+    # public licence
+    @{$stat->{P}}{qw,p g l b a 2 o d r n,} = qw,Standard-Perl
                                               GPL LGPL
-                                              BSD Artistic
+                                              BSD Artistic Artistic_2
                                               open-source
                                               distribution_allowed
                                               restricted_distribution
@@ -7262,29 +9818,29 @@ sub as_string {
     push @m, $class, " id = $self->{ID}\n";
     my $sprintf = "    %-12s %s\n";
     push @m, sprintf($sprintf, 'DESCRIPTION', $self->description)
-       if $self->description;
+        if $self->description;
     my $sprintf2 = "    %-12s %s (%s)\n";
     my($userid);
     $userid = $self->userid;
-    if ( $userid ){
-       my $author;
-       if ($author = CPAN::Shell->expand('Author',$userid)) {
-         my $email = "";
-         my $m; # old perls
-         if ($m = $author->email) {
-            $email = " <$m>";
-          }
-         push @m, sprintf(
-                          $sprintf2,
-                          'CPAN_USERID',
-                          $userid,
-                          $author->fullname . $email
-                         );
-       }
+    if ( $userid ) {
+        my $author;
+        if ($author = CPAN::Shell->expand('Author',$userid)) {
+            my $email = "";
+            my $m; # old perls
+            if ($m = $author->email) {
+                $email = " <$m>";
+            }
+            push @m, sprintf(
+                             $sprintf2,
+                             'CPAN_USERID',
+                             $userid,
+                             $author->fullname . $email
+                            );
+        }
     }
     push @m, sprintf($sprintf, 'CPAN_VERSION', $self->cpan_version)
-       if $self->cpan_version;
-    if (my $cpan_file = $self->cpan_file){
+        if $self->cpan_version;
+    if (my $cpan_file = $self->cpan_file) {
         push @m, sprintf($sprintf, 'CPAN_FILE', $cpan_file);
         if (my $dist = CPAN::Shell->expand("Distribution",$cpan_file)) {
             my $upload_date = $dist->upload_date;
@@ -7348,62 +9904,63 @@ sub as_string {
     }
     my($item);
     for $item (qw/MANPAGE/) {
-       push @m, sprintf($sprintf, $item, $self->{$item})
-           if exists $self->{$item};
+        push @m, sprintf($sprintf, $item, $self->{$item})
+            if exists $self->{$item};
     }
     for $item (qw/CONTAINS/) {
-       push @m, sprintf($sprintf, $item, join(" ",@{$self->{$item}}))
-           if exists $self->{$item} && @{$self->{$item}};
+        push @m, sprintf($sprintf, $item, join(" ",@{$self->{$item}}))
+            if exists $self->{$item} && @{$self->{$item}};
     }
     push @m, sprintf($sprintf, 'INST_FILE',
-                    $local_file || "(not installed)");
+                     $local_file || "(not installed)");
     push @m, sprintf($sprintf, 'INST_VERSION',
-                    $self->inst_version) if $local_file;
+                     $self->inst_version) if $local_file;
     join "", @m, "\n";
 }
 
+#-> sub CPAN::Module::manpage_headline
 sub manpage_headline {
-  my($self,$local_file) = @_;
-  my(@local_file) = $local_file;
-  $local_file =~ s/\.pm(?!\n)\Z/.pod/;
-  push @local_file, $local_file;
-  my(@result,$locf);
-  for $locf (@local_file) {
-    next unless -f $locf;
-    my $fh = FileHandle->new($locf)
-       or $Carp::Frontend->mydie("Couldn't open $locf: $!");
-    my $inpod = 0;
-    local $/ = "\n";
-    while (<$fh>) {
-      $inpod = m/^=(?!head1\s+NAME\s*$)/ ? 0 :
-         m/^=head1\s+NAME\s*$/ ? 1 : $inpod;
-      next unless $inpod;
-      next if /^=/;
-      next if /^\s+$/;
-      chomp;
-      push @result, $_;
+    my($self,$local_file) = @_;
+    my(@local_file) = $local_file;
+    $local_file =~ s/\.pm(?!\n)\Z/.pod/;
+    push @local_file, $local_file;
+    my(@result,$locf);
+    for $locf (@local_file) {
+        next unless -f $locf;
+        my $fh = FileHandle->new($locf)
+            or $Carp::Frontend->mydie("Couldn't open $locf: $!");
+        my $inpod = 0;
+        local $/ = "\n";
+        while (<$fh>) {
+            $inpod = m/^=(?!head1\s+NAME\s*$)/ ? 0 :
+                m/^=head1\s+NAME\s*$/ ? 1 : $inpod;
+            next unless $inpod;
+            next if /^=/;
+            next if /^\s+$/;
+            chomp;
+            push @result, $_;
+        }
+        close $fh;
+        last if @result;
     }
-    close $fh;
-    last if @result;
-  }
-  for (@result) {
-      s/^\s+//;
-      s/\s+$//;
-  }
-  join " ", @result;
+    for (@result) {
+        s/^\s+//;
+        s/\s+$//;
+    }
+    join " ", @result;
 }
 
 #-> sub CPAN::Module::cpan_file ;
 # Note: also inherited by CPAN::Bundle
 sub cpan_file {
     my $self = shift;
-    CPAN->debug(sprintf "id[%s]", $self->id) if $CPAN::DEBUG;
+    CPAN->debug(sprintf "id[%s]", $self->id) if $CPAN::DEBUG;
     unless ($self->ro) {
-       CPAN::Index->reload;
+        CPAN::Index->reload;
     }
     my $ro = $self->ro;
-    if ($ro && defined $ro->{CPAN_FILE}){
-       return $ro->{CPAN_FILE};
+    if ($ro && defined $ro->{CPAN_FILE}) {
+        return $ro->{CPAN_FILE};
     } else {
         my $userid = $self->userid;
         if ( $userid ) {
@@ -7437,20 +9994,27 @@ sub cpan_version {
         $ro = {};
     }
     $ro->{CPAN_VERSION} = 'undef'
-       unless defined $ro->{CPAN_VERSION};
+        unless defined $ro->{CPAN_VERSION};
     $ro->{CPAN_VERSION};
 }
 
 #-> sub CPAN::Module::force ;
 sub force {
     my($self) = @_;
-    $self->{'force_update'}++;
+    $self->{force_update} = 1;
+}
+
+#-> sub CPAN::Module::fforce ;
+sub fforce {
+    my($self) = @_;
+    $self->{force_update} = 2;
 }
 
+#-> sub CPAN::Module::notest ;
 sub notest {
     my($self) = @_;
-    # warn "XDEBUG: set notest for Module";
-    $self->{'notest'}++;
+    # $CPAN::Frontend->mywarn("XDEBUG: set notest for Module");
+    $self->{notest}++;
 }
 
 #-> sub CPAN::Module::rematein ;
@@ -7460,23 +10024,29 @@ sub rematein {
                                      $meth,
                                      $self->id));
     my $cpan_file = $self->cpan_file;
-    if ($cpan_file eq "N/A" || $cpan_file =~ /^Contact Author/){
-      $CPAN::Frontend->mywarn(sprintf qq{
+    if ($cpan_file eq "N/A" || $cpan_file =~ /^Contact Author/) {
+        $CPAN::Frontend->mywarn(sprintf qq{
   The module %s isn\'t available on CPAN.
 
   Either the module has not yet been uploaded to CPAN, or it is
   temporary unavailable. Please contact the author to find out
   more about the status. Try 'i %s'.
 },
-                             $self->id,
-                             $self->id,
-                            );
-      return;
+                                $self->id,
+                                $self->id,
+                               );
+        return;
     }
     my $pack = $CPAN::META->instance('CPAN::Distribution',$cpan_file);
     $pack->called_for($self->id);
-    $pack->force($meth) if exists $self->{'force_update'};
-    $pack->notest($meth) if exists $self->{'notest'};
+    if (exists $self->{force_update}) {
+        if ($self->{force_update} == 2) {
+            $pack->fforce($meth);
+        } else {
+            $pack->force($meth);
+        }
+    }
+    $pack->notest($meth) if exists $self->{notest} && $self->{notest};
 
     $pack->{reqtype} ||= "";
     CPAN->debug("dist-reqtype[$pack->{reqtype}]".
@@ -7488,7 +10058,7 @@ sub rematein {
                     exists $pack->{install}
                     &&
                     (
-                     $pack->{install}->can("failed") ?
+                     UNIVERSAL::can($pack->{install},"failed") ?
                      $pack->{install}->failed :
                      $pack->{install} =~ /^NO/
                     )
@@ -7502,17 +10072,18 @@ sub rematein {
             $pack->{reqtype} = $self->{reqtype};
         }
 
-    eval {
-       $pack->$meth();
+    my $success = eval {
+        $pack->$meth();
     };
     my $err = $@;
-    $pack->unforce if $pack->can("unforce") && exists $self->{'force_update'};
-    $pack->unnotest if $pack->can("unnotest") && exists $self->{'notest'};
-    delete $self->{'force_update'};
-    delete $self->{'notest'};
+    $pack->unforce if $pack->can("unforce") && exists $self->{force_update};
+    $pack->unnotest if $pack->can("unnotest") && exists $self->{notest};
+    delete $self->{force_update};
+    delete $self->{notest};
     if ($err) {
-       die $err;
+        die $err;
     }
+    return $success;
 }
 
 #-> sub CPAN::Module::perldoc ;
@@ -7530,7 +10101,7 @@ sub make    { shift->rematein('make') }
 #-> sub CPAN::Module::test ;
 sub test   {
     my $self = shift;
-    $self->{badtestcnt} ||= 0;
+    $self->{badtestcnt} ||= 0;
     $self->rematein('test',@_);
 }
 #-> sub CPAN::Module::uptodate ;
@@ -7542,12 +10113,12 @@ sub uptodate {
     my($inst_file) = $self->inst_file;
     my($have) = 0;
     if (defined $inst_file) {
-       $have = $self->inst_version;
+        $have = $self->inst_version;
     }
     local($^W)=0;
     if ($inst_file
-       &&
-       ! CPAN::Version->vgt($latest, $have)
+        &&
+        ! CPAN::Version->vgt($latest, $have)
        ) {
         CPAN->debug("returning uptodate. inst_file[$inst_file] ".
                     "latest[$latest] have[$have]") if $CPAN::DEBUG;
@@ -7560,15 +10131,15 @@ sub install {
     my($self) = @_;
     my($doit) = 0;
     if ($self->uptodate
-       &&
-       not exists $self->{'force_update'}
+        &&
+        not exists $self->{force_update}
        ) {
-       $CPAN::Frontend->myprint(sprintf("%s is up to date (%s).\n",
+        $CPAN::Frontend->myprint(sprintf("%s is up to date (%s).\n",
                                          $self->id,
                                          $self->inst_version,
                                         ));
     } else {
-       $doit = 1;
+        $doit = 1;
     }
     my $ro = $self->ro;
     if ($ro && $ro->{stats} && $ro->{stats} eq "a") {
@@ -7586,17 +10157,33 @@ sub clean  { shift->rematein('clean') }
 #-> sub CPAN::Module::inst_file ;
 sub inst_file {
     my($self) = @_;
+    $self->_file_in_path([@INC]);
+}
+
+#-> sub CPAN::Module::available_file ;
+sub available_file {
+    my($self) = @_;
+    my $sep = $Config::Config{path_sep};
+    my $perllib = $ENV{PERL5LIB};
+    $perllib = $ENV{PERLLIB} unless defined $perllib;
+    my @perllib = split(/$sep/,$perllib) if defined $perllib;
+    $self->_file_in_path([@perllib,@INC]);
+}
+
+#-> sub CPAN::Module::file_in_path ;
+sub _file_in_path {
+    my($self,$path) = @_;
     my($dir,@packpath);
     @packpath = split /::/, $self->{ID};
     $packpath[-1] .= ".pm";
     if (@packpath == 1 && $packpath[0] eq "readline.pm") {
         unshift @packpath, "Term", "ReadLine"; # historical reasons
     }
-    foreach $dir (@INC) {
-       my $pmfile = File::Spec->catfile($dir,@packpath);
-       if (-f $pmfile){
-           return $pmfile;
-       }
+    foreach $dir (@$path) {
+        my $pmfile = File::Spec->catfile($dir,@packpath);
+        if (-f $pmfile) {
+            return $pmfile;
+        }
     }
     return;
 }
@@ -7609,10 +10196,10 @@ sub xs_file {
     push @packpath, $packpath[-1];
     $packpath[-1] .= "." . $Config::Config{'dlext'};
     foreach $dir (@INC) {
-       my $xsfile = File::Spec->catfile($dir,'auto',@packpath);
-       if (-f $xsfile){
-           return $xsfile;
-       }
+        my $xsfile = File::Spec->catfile($dir,'auto',@packpath);
+        if (-f $xsfile) {
+            return $xsfile;
+        }
     }
     return;
 }
@@ -7621,39 +10208,38 @@ sub xs_file {
 sub inst_version {
     my($self) = @_;
     my $parsefile = $self->inst_file or return;
-    local($^W) = 0 if $] < 5.00303 && $ExtUtils::MakeMaker::VERSION < 5.38;
-    my $have;
+    my $have = $self->parse_version($parsefile);
+    $have;
+}
+
+#-> sub CPAN::Module::inst_version ;
+sub available_version {
+    my($self) = @_;
+    my $parsefile = $self->available_file or return;
+    my $have = $self->parse_version($parsefile);
+    $have;
+}
 
-    $have = MM->parse_version($parsefile) || "undef";
+#-> sub CPAN::Module::parse_version ;
+sub parse_version {
+    my($self,$parsefile) = @_;
+    my $have = MM->parse_version($parsefile);
+    $have = "undef" unless defined $have && length $have;
     $have =~ s/^ //; # since the %vd hack these two lines here are needed
     $have =~ s/ $//; # trailing whitespace happens all the time
 
-    # My thoughts about why %vd processing should happen here
-
-    # Alt1 maintain it as string with leading v:
-    # read index files     do nothing
-    # compare it           use utility for compare
-    # print it             do nothing
-
-    # Alt2 maintain it as what it is
-    # read index files     convert
-    # compare it           use utility because there's still a ">" vs "gt" issue
-    # print it             use CPAN::Version for print
-
-    # Seems cleaner to hold it in memory as a string starting with a "v"
-
-    # If the author of this module made a mistake and wrote a quoted
-    # "v1.13" instead of v1.13, we simply leave it at that with the
-    # effect that *we* will treat it like a v-tring while the rest of
-    # perl won't. Seems sensible when we consider that any action we
-    # could take now would just add complexity.
-
     $have = CPAN::Version->readable($have);
 
     $have =~ s/\s*//g; # stringify to float around floating point issues
     $have; # no stringify needed, \s* above matches always
 }
 
+#-> sub CPAN::Module::reports
+sub reports {
+    my($self) = @_;
+    $self->distribution->reports;
+}
+
 package CPAN;
 use strict;
 
@@ -7670,11 +10256,13 @@ CPAN - query, download and build perl modules from CPAN sites
 
 Interactive mode:
 
-  perl -MCPAN -e shell;
+  perl -MCPAN -e shell
+
+--or--
 
-Batch mode:
+  cpan
 
-  use CPAN;
+Basic commands:
 
   # Modules:
 
@@ -7701,45 +10289,25 @@ Batch mode:
   $do = CPAN::Shell->expand("Distribution",
                             $distro);            # same thing
 
-=head1 STATUS
-
-This module and its competitor, the CPANPLUS module, are both much
-cooler than the other.
-
-=head1 COMPATIBILITY
-
-CPAN.pm is regularly tested to run under 5.004, 5.005, and assorted
-newer versions. It is getting more and more difficult to get the
-minimal prerequisites working on older perls. It is close to
-impossible to get the whole Bundle::CPAN working there. If you're in
-the position to have only these old versions, be advised that CPAN is
-designed to work fine without the Bundle::CPAN installed.
-
-To get things going, note that GBARR/Scalar-List-Utils-1.18.tar.gz is
-compatible with ancient perls and that File::Temp is listed as a
-prerequisite but CPAN has reasonable workarounds if it is missing.
-
 =head1 DESCRIPTION
 
-The CPAN module is designed to automate the make and install of perl
-modules and extensions. It includes some primitive searching
-capabilities and knows how to use Net::FTP or LWP (or some external
-download clients) to fetch the raw data from the net.
+The CPAN module automates or at least simplifies the make and install
+of perl modules and extensions. It includes some primitive searching
+capabilities and knows how to use Net::FTP or LWP or some external
+download clients to fetch the distributions from the net.
 
-Modules are fetched from one or more of the mirrored CPAN
-(Comprehensive Perl Archive Network) sites and unpacked in a dedicated
-directory.
+These are fetched from one or more of the mirrored CPAN (Comprehensive
+Perl Archive Network) sites and unpacked in a dedicated directory.
 
 The CPAN module also supports the concept of named and versioned
 I<bundles> of modules. Bundles simplify the handling of sets of
 related modules. See Bundles below.
 
-The package contains a session manager and a cache manager. There is
-no status retained between sessions. The session manager keeps track
-of what has been fetched, built and installed in the current
-session. The cache manager keeps track of the disk space occupied by
-the make processes and deletes excess space according to a simple FIFO
-mechanism.
+The package contains a session manager and a cache manager. The
+session manager keeps track of what has been fetched, built and
+installed in the current session. The cache manager keeps track of the
+disk space occupied by the make processes and deletes excess space
+according to a simple FIFO mechanism.
 
 All methods provided are accessible in a programmer style and in an
 interactive shell style.
@@ -7750,12 +10318,16 @@ The interactive mode is entered by running
 
     perl -MCPAN -e shell
 
-which puts you into a readline interface. You will have the most fun if
-you install Term::ReadKey and Term::ReadLine to enjoy both history and
-command completion.
+or
+
+    cpan
 
-Once you are on the command line, type 'h' and the rest should be
-self-explanatory.
+which puts you into a readline interface. If C<Term::ReadKey> and
+either C<Term::ReadLine::Perl> or C<Term::ReadLine::Gnu> are installed
+it supports both history and command completion.
+
+Once you are on the command line, type C<h> to get a one page help
+screen and the rest should be self-explanatory.
 
 The function call C<shell> takes two optional arguments, one is the
 prompt, the second is the default initial command line (the latter
@@ -7784,7 +10356,7 @@ displayed with the rather verbose method C<as_string>, but if we find
 more than one, we display each object with the terse method
 C<as_glimpse>.
 
-=item make, test, install, clean  modules or distributions
+=item C<get>, C<make>, C<test>, C<install>, C<clean> modules or distributions
 
 These commands take any number of arguments and investigate what is
 necessary to perform the action. If the argument is a distribution
@@ -7794,6 +10366,9 @@ is included and processes that, following any dependencies named in
 the module's META.yml or Makefile.PL (this behavior is controlled by
 the configuration parameter C<prerequisites_policy>.)
 
+C<get> downloads a distribution file and untars or unzips it, C<make>
+builds it, C<test> runs the test suite, and C<install> installs it.
+
 Any C<make> or C<test> are run unconditionally. An
 
   install <distribution_file>
@@ -7808,21 +10383,15 @@ the module doesn't need to be updated.
 
 CPAN also keeps track of what it has done within the current session
 and doesn't try to build a package a second time regardless if it
-succeeded or not. The C<force> pragma may precede another command
-(currently: C<make>, C<test>, or C<install>) and executes the
-command from scratch and tries to continue in case of some errors.
+succeeded or not. It does not repeat a test run if the test
+has been run successfully before. Same for install runs.
 
-Example:
-
-    cpan> install OpenGL
-    OpenGL is up to date.
-    cpan> force install OpenGL
-    Running make
-    OpenGL-0.4/
-    OpenGL-0.4/COPYRIGHT
-    [...]
+The C<force> pragma may precede another command (currently: C<get>,
+C<make>, C<test>, or C<install>) and executes the command from scratch
+and tries to continue in case of some errors. See the section below on
+the C<force> and the C<fforce> pragma.
 
-The C<notest> pragma may be set to skip the test part in the build
+The C<notest> pragma may be used to skip the test part in the build
 process.
 
 Example:
@@ -7835,18 +10404,17 @@ A C<clean> command results in a
 
 being executed within the distribution file's working directory.
 
-=item get, readme, perldoc, look module or distribution
+=item C<readme>, C<perldoc>, C<look> module or distribution
 
-C<get> downloads a distribution file without further action. C<readme>
-displays the README file of the associated distribution. C<Look> gets
-and untars (if not yet done) the distribution file, changes to the
-appropriate directory and opens a subshell process in that directory.
-C<perldoc> displays the pod documentation of the module in html or
-plain text format.
+C<readme> displays the README file of the associated distribution.
+C<Look> gets and untars (if not yet done) the distribution file,
+changes to the appropriate directory and opens a subshell process in
+that directory. C<perldoc> displays the pod documentation of the
+module in html or plain text format.
 
-=item ls author
+=item C<ls> author
 
-=item ls globbing_expression
+=item C<ls> globbing_expression
 
 The first form lists all distribution files in and below an author's
 CPAN directory as they are stored in the CHECKUMS files distributed on
@@ -7855,9 +10423,9 @@ CPAN. The listing goes recursive into all subdirectories.
 The second form allows to limit or expand the output with shell
 globbing as in the following examples:
 
-         ls JV/make*
-         ls GSAR/*make*
-         ls */*make*
+      ls JV/make*
+      ls GSAR/*make*
+      ls */*make*
 
 The last example is very slow and outputs extra progress indicators
 that break the alignment of the result.
@@ -7866,25 +10434,60 @@ Note that globbing only lists directories explicitly asked for, for
 example FOO/* will not list FOO/bar/Acme-Sthg-n.nn.tar.gz. This may be
 regarded as a bug and may be changed in future versions.
 
-=item failed
+=item C<failed>
 
 The C<failed> command reports all distributions that failed on one of
 C<make>, C<test> or C<install> for some reason in the currently
 running shell session.
 
+=item Persistence between sessions
+
+If the C<YAML> or the c<YAML::Syck> module is installed a record of
+the internal state of all modules is written to disk after each step.
+The files contain a signature of the currently running perl version
+for later perusal.
+
+If the configurations variable C<build_dir_reuse> is set to a true
+value, then CPAN.pm reads the collected YAML files. If the stored
+signature matches the currently running perl the stored state is
+loaded into memory such that effectively persistence between sessions
+is established.
+
+=item The C<force> and the C<fforce> pragma
+
+To speed things up in complex installation scenarios, CPAN.pm keeps
+track of what it has already done and refuses to do some things a
+second time. A C<get>, a C<make>, and an C<install> are not repeated.
+A C<test> is only repeated if the previous test was unsuccessful. The
+diagnostic message when CPAN.pm refuses to do something a second time
+is one of I<Has already been >C<unwrapped|made|tested successfully> or
+something similar. Another situation where CPAN refuses to act is an
+C<install> if the according C<test> was not successful.
+
+In all these cases, the user can override the goatish behaviour by
+prepending the command with the word force, for example:
+
+  cpan> force get Foo
+  cpan> force make AUTHOR/Bar-3.14.tar.gz
+  cpan> force test Baz
+  cpan> force install Acme::Meta
+
+Each I<forced> command is executed with the according part of its
+memory erased.
+
+The C<fforce> pragma is a variant that emulates a C<force get> which
+erases the entire memory followed by the action specified, effectively
+restarting the whole get/make/test/install procedure from scratch.
+
 =item Lockfile
 
-Interactive sessions maintain a lockfile, per default C<~/.cpan/.lock>
-(but the directory can be configured via the C<cpan_home> config
-variable). The shell is a bit picky if you try to start another CPAN
-session. It dies immediately if there is a lockfile and the lock seems
-to belong to a running process. In case you want to run a second shell
-session, it is probably safest to maintain another directory, say
-C<~/.cpan-for-X/> and a C<~/.cpan-for-X/CPAN/MyConfig.pm> that
-contains the configuration options. Then you can start the second
-shell with
+Interactive sessions maintain a lockfile, per default C<~/.cpan/.lock>.
+Batch jobs can run without a lockfile and do not disturb each other.
 
-  perl -I ~/.cpan-for-X -MCPAN::MyConfig -MCPAN -e shell
+The shell offers to run in I<degraded mode> when another process is
+holding the lockfile. This is an experimental feature that is not yet
+tested very well. This second shell then does not write the history
+file, does not use the metadata file and has a different prompt.
 
 =item Signals
 
@@ -7919,6 +10522,37 @@ a list of all modules that are both available from CPAN and currently
 installed within @INC. The name of the bundle file is based on the
 current date and a counter.
 
+=head2 hosts
+
+Note: this feature is still in alpha state and may change in future
+versions of CPAN.pm
+
+This commands provides a statistical overview over recent download
+activities. The data for this is collected in the YAML file
+C<FTPstats.yml> in your C<cpan_home> directory. If no YAML module is
+configured or YAML not installed, then no stats are provided.
+
+=head2 mkmyconfig
+
+mkmyconfig() writes your own CPAN::MyConfig file into your ~/.cpan/
+directory so that you can save your own preferences instead of the
+system wide ones.
+
+=head2 recent ***EXPERIMENTAL COMMAND***
+
+The C<recent> command downloads a list of recent uploads to CPAN and
+displays them I<slowly>. While the command is running $SIG{INT} is
+defined to mean that the loop shall be left after having displayed the
+current item.
+
+B<Note>: This command requires XML::LibXML installed.
+
+B<Note>: This whole command currently is a bit klunky and will
+probably change in future versions of CPAN.pm but the general
+approach will likely stay.
+
+B<Note>: See also L<smoke>
+
 =head2 recompile
 
 recompile() is a very special command in that it takes no argument and
@@ -7941,7 +10575,27 @@ commands), then you should try the CPAN::Nox module for recovery.
 =head2 report Bundle|Distribution|Module
 
 The C<report> command temporarily turns on the C<test_report> config
-variable, then runs the C<force test> command with the given arguments.
+variable, then runs the C<force test> command with the given
+arguments. The C<force> pragma is used to re-run the tests and repeat
+every step that might have failed before.
+
+=head2 smoke ***EXPERIMENTAL COMMAND***
+
+B<*** WARNING: this command downloads and executes software from CPAN to
+*** your computer of completely unknown status. You should never do
+*** this with your normal account and better have a dedicated well
+*** separated and secured machine to do this.>
+
+The C<smoke> command takes the list of recent uploads to CPAN as
+provided by the C<recent> command and tests them all. While the
+command is running $SIG{INT} is defined to mean that the current item
+shall be skipped.
+
+B<Note>: This whole command currently is a bit klunky and will
+probably change in future versions of CPAN.pm but the general
+approach will likely stay.
+
+B<Note>: See also L<recent>
 
 =head2 upgrade [Module|/Regex/]...
 
@@ -7949,12 +10603,6 @@ The C<upgrade> command first runs an C<r> command with the given
 arguments and then installs the newest versions of all modules that
 were listed by that.
 
-=head2 mkmyconfig
-
-mkmyconfig() writes your own CPAN::MyConfig file into your ~/.cpan/
-directory so that you can save your own preferences instead of the
-system wide ones.
-
 =head2 The four C<CPAN::*> Classes: Author, Bundle, Module, Distribution
 
 Although it may be considered internal, the class hierarchy does matter
@@ -7975,9 +10623,9 @@ Modules know their associated Distribution objects. They always refer
 to the most recent official release. Developers may mark their releases
 as unstable development versions (by inserting an underbar into the
 module version number which will also be reflected in the distribution
-name when you run 'make dist'), so the really hottest and newest 
-distribution is not always the default.  If a module Foo circulates 
-on CPAN in both version 1.23 and 1.23_90, CPAN.pm offers a convenient 
+name when you run 'make dist'), so the really hottest and newest
+distribution is not always the default.  If a module Foo circulates
+on CPAN in both version 1.23 and 1.23_90, CPAN.pm offers a convenient
 way to install version 1.23 by saying
 
     install Foo
@@ -7994,85 +10642,794 @@ so you would have to say
 The first example will be driven by an object of the class
 CPAN::Module, the second by an object of class CPAN::Distribution.
 
-=head1 PROGRAMMER'S INTERFACE
+=head2 Integrating local directories
 
-If you do not enter the shell, the available shell commands are both
-available as methods (C<CPAN::Shell-E<gt>install(...)>) and as
-functions in the calling package (C<install(...)>).
+Note: this feature is still in alpha state and may change in future
+versions of CPAN.pm
 
-There's currently only one class that has a stable interface -
-CPAN::Shell. All commands that are available in the CPAN shell are
-methods of the class CPAN::Shell. Each of the commands that produce
-listings of modules (C<r>, C<autobundle>, C<u>) also return a list of
-the IDs of all modules within the list.
+Distribution objects are normally distributions from the CPAN, but
+there is a slightly degenerate case for Distribution objects, too, of
+projects held on the local disk. These distribution objects have the
+same name as the local directory and end with a dot. A dot by itself
+is also allowed for the current directory at the time CPAN.pm was
+used. All actions such as C<make>, C<test>, and C<install> are applied
+directly to that directory. This gives the command C<cpan .> an
+interesting touch: while the normal mantra of installing a CPAN module
+without CPAN.pm is one of
 
-=over 2
+    perl Makefile.PL                 perl Build.PL
+           ( go and get prerequisites )
+    make                             ./Build
+    make test                        ./Build test
+    make install                     ./Build install
 
-=item expand($type,@things)
+the command C<cpan .> does all of this at once. It figures out which
+of the two mantras is appropriate, fetches and installs all
+prerequisites, cares for them recursively and finally finishes the
+installation of the module in the current directory, be it a CPAN
+module or not.
 
-The IDs of all objects available within a program are strings that can
-be expanded to the corresponding real objects with the
-C<CPAN::Shell-E<gt>expand("Module",@things)> method. Expand returns a
-list of CPAN::Module objects according to the C<@things> arguments
-given. In scalar context it only returns the first element of the
-list.
+The typical usage case is for private modules or working copies of
+projects from remote repositories on the local disk.
 
-=item expandany(@things)
+=head1 CONFIGURATION
 
-Like expand, but returns objects of the appropriate type, i.e.
-CPAN::Bundle objects for bundles, CPAN::Module objects for modules and
-CPAN::Distribution objects for distributions. Note: it does not expand
-to CPAN::Author objects.
+When the CPAN module is used for the first time, a configuration
+dialog tries to determine a couple of site specific options. The
+result of the dialog is stored in a hash reference C< $CPAN::Config >
+in a file CPAN/Config.pm.
 
-=item Programming Examples
+The default values defined in the CPAN/Config.pm file can be
+overridden in a user specific file: CPAN/MyConfig.pm. Such a file is
+best placed in $HOME/.cpan/CPAN/MyConfig.pm, because $HOME/.cpan is
+added to the search path of the CPAN module before the use() or
+require() statements. The mkmyconfig command writes this file for you.
 
-This enables the programmer to do operations that combine
-functionalities that are available in the shell.
+The C<o conf> command has various bells and whistles:
 
-    # install everything that is outdated on my disk:
-    perl -MCPAN -e 'CPAN::Shell->install(CPAN::Shell->r)'
+=over
 
-    # install my favorite programs if necessary:
-    for $mod (qw(Net::FTP Digest::SHA Data::Dumper)){
-        CPAN::Shell->install($mod);
-    }
+=item completion support
 
-    # list all modules on my disk that have no VERSION number
-    for $mod (CPAN::Shell->expand("Module","/./")){
-       next unless $mod->inst_file;
-        # MakeMaker convention for undefined $VERSION:
-       next unless $mod->inst_version eq "undef";
-       print "No VERSION in ", $mod->id, "\n";
-    }
+If you have a ReadLine module installed, you can hit TAB at any point
+of the commandline and C<o conf> will offer you completion for the
+built-in subcommands and/or config variable names.
 
-    # find out which distribution on CPAN contains a module:
-    print CPAN::Shell->expand("Module","Apache::Constants")->cpan_file
+=item displaying some help: o conf help
 
-Or if you want to write a cronjob to watch The CPAN, you could list
-all modules that need updating. First a quick and dirty way:
+Displays a short help
 
-    perl -e 'use CPAN; CPAN::Shell->r;'
+=item displaying current values: o conf [KEY]
 
-If you don't want to get any output in the case that all modules are
-up to date, you can parse the output of above command for the regular
-expression //modules are up to date// and decide to mail the output
-only if it doesn't match. Ick?
+Displays the current value(s) for this config variable. Without KEY
+displays all subcommands and config variables.
 
-If you prefer to do it more in a programmer style in one single
-process, maybe something like this suits you better:
+Example:
 
-  # list all modules on my disk that have newer versions on CPAN
-  for $mod (CPAN::Shell->expand("Module","/./")){
-    next unless $mod->inst_file;
-    next if $mod->uptodate;
-    printf "Module %s is installed as %s, could be updated to %s from CPAN\n",
-        $mod->id, $mod->inst_version, $mod->cpan_version;
-  }
+  o conf shell
 
-If that gives you too much output every day, you maybe only want to
+If KEY starts and ends with a slash the string in between is
+interpreted as a regular expression and only keys matching this regex
+are displayed
+
+Example:
+
+  o conf /color/
+
+=item changing of scalar values: o conf KEY VALUE
+
+Sets the config variable KEY to VALUE. The empty string can be
+specified as usual in shells, with C<''> or C<"">
+
+Example:
+
+  o conf wget /usr/bin/wget
+
+=item changing of list values: o conf KEY SHIFT|UNSHIFT|PUSH|POP|SPLICE|LIST
+
+If a config variable name ends with C<list>, it is a list. C<o conf
+KEY shift> removes the first element of the list, C<o conf KEY pop>
+removes the last element of the list. C<o conf KEYS unshift LIST>
+prepends a list of values to the list, C<o conf KEYS push LIST>
+appends a list of valued to the list.
+
+Likewise, C<o conf KEY splice LIST> passes the LIST to the according
+splice command.
+
+Finally, any other list of arguments is taken as a new list value for
+the KEY variable discarding the previous value.
+
+Examples:
+
+  o conf urllist unshift http://cpan.dev.local/CPAN
+  o conf urllist splice 3 1
+  o conf urllist http://cpan1.local http://cpan2.local ftp://ftp.perl.org
+
+=item reverting to saved: o conf defaults
+
+Reverts all config variables to the state in the saved config file.
+
+=item saving the config: o conf commit
+
+Saves all config variables to the current config file (CPAN/Config.pm
+or CPAN/MyConfig.pm that was loaded at start).
+
+=back
+
+The configuration dialog can be started any time later again by
+issuing the command C< o conf init > in the CPAN shell. A subset of
+the configuration dialog can be run by issuing C<o conf init WORD>
+where WORD is any valid config variable or a regular expression.
+
+=head2 Config Variables
+
+Currently the following keys in the hash reference $CPAN::Config are
+defined:
+
+  applypatch         path to external prg
+  auto_commit        commit all changes to config variables to disk
+  build_cache        size of cache for directories to build modules
+  build_dir          locally accessible directory to build modules
+  build_dir_reuse    boolean if distros in build_dir are persistent
+  build_requires_install_policy
+                     to install or not to install when a module is
+                     only needed for building. yes|no|ask/yes|ask/no
+  bzip2              path to external prg
+  cache_metadata     use serializer to cache metadata
+  commands_quote     prefered character to use for quoting external
+                     commands when running them. Defaults to double
+                     quote on Windows, single tick everywhere else;
+                     can be set to space to disable quoting
+  check_sigs         if signatures should be verified
+  colorize_debug     Term::ANSIColor attributes for debugging output
+  colorize_output    boolean if Term::ANSIColor should colorize output
+  colorize_print     Term::ANSIColor attributes for normal output
+  colorize_warn      Term::ANSIColor attributes for warnings
+  commandnumber_in_prompt
+                     boolean if you want to see current command number
+  cpan_home          local directory reserved for this package
+  curl               path to external prg
+  dontload_hash      DEPRECATED
+  dontload_list      arrayref: modules in the list will not be
+                     loaded by the CPAN::has_inst() routine
+  ftp                path to external prg
+  ftp_passive        if set, the envariable FTP_PASSIVE is set for downloads
+  ftp_proxy          proxy host for ftp requests
+  getcwd             see below
+  gpg                path to external prg
+  gzip               location of external program gzip
+  histfile           file to maintain history between sessions
+  histsize           maximum number of lines to keep in histfile
+  http_proxy         proxy host for http requests
+  inactivity_timeout breaks interactive Makefile.PLs or Build.PLs
+                     after this many seconds inactivity. Set to 0 to
+                     never break.
+  index_expire       after this many days refetch index files
+  inhibit_startup_message
+                     if true, does not print the startup message
+  keep_source_where  directory in which to keep the source (if we do)
+  load_module_verbosity
+                     report loading of optional modules used by CPAN.pm
+  lynx               path to external prg
+  make               location of external make program
+  make_arg           arguments that should always be passed to 'make'
+  make_install_make_command
+                     the make command for running 'make install', for
+                     example 'sudo make'
+  make_install_arg   same as make_arg for 'make install'
+  makepl_arg         arguments passed to 'perl Makefile.PL'
+  mbuild_arg         arguments passed to './Build'
+  mbuild_install_arg arguments passed to './Build install'
+  mbuild_install_build_command
+                     command to use instead of './Build' when we are
+                     in the install stage, for example 'sudo ./Build'
+  mbuildpl_arg       arguments passed to 'perl Build.PL'
+  ncftp              path to external prg
+  ncftpget           path to external prg
+  no_proxy           don't proxy to these hosts/domains (comma separated list)
+  pager              location of external program more (or any pager)
+  password           your password if you CPAN server wants one
+  patch              path to external prg
+  prefer_installer   legal values are MB and EUMM: if a module comes
+                     with both a Makefile.PL and a Build.PL, use the
+                     former (EUMM) or the latter (MB); if the module
+                     comes with only one of the two, that one will be
+                     used in any case
+  prerequisites_policy
+                     what to do if you are missing module prerequisites
+                     ('follow' automatically, 'ask' me, or 'ignore')
+  prefs_dir          local directory to store per-distro build options
+  proxy_user         username for accessing an authenticating proxy
+  proxy_pass         password for accessing an authenticating proxy
+  randomize_urllist  add some randomness to the sequence of the urllist
+  scan_cache         controls scanning of cache ('atstart' or 'never')
+  shell              your favorite shell
+  show_unparsable_versions
+                     boolean if r command tells which modules are versionless
+  show_upload_date   boolean if commands should try to determine upload date
+  show_zero_versions boolean if r command tells for which modules $version==0
+  tar                location of external program tar
+  tar_verbosity      verbosity level for the tar command
+  term_is_latin      deprecated: if true Unicode is translated to ISO-8859-1
+                     (and nonsense for characters outside latin range)
+  term_ornaments     boolean to turn ReadLine ornamenting on/off
+  test_report        email test reports (if CPAN::Reporter is installed)
+  unzip              location of external program unzip
+  urllist            arrayref to nearby CPAN sites (or equivalent locations)
+  use_sqlite         use CPAN::SQLite for metadata storage (fast and lean)
+  username           your username if you CPAN server wants one
+  wait_list          arrayref to a wait server to try (See CPAN::WAIT)
+  wget               path to external prg
+  yaml_load_code     enable YAML code deserialisation
+  yaml_module        which module to use to read/write YAML files
+
+You can set and query each of these options interactively in the cpan
+shell with the C<o conf> or the C<o conf init> command as specified below.
+
+=over 2
+
+=item C<o conf E<lt>scalar optionE<gt>>
+
+prints the current value of the I<scalar option>
+
+=item C<o conf E<lt>scalar optionE<gt> E<lt>valueE<gt>>
+
+Sets the value of the I<scalar option> to I<value>
+
+=item C<o conf E<lt>list optionE<gt>>
+
+prints the current value of the I<list option> in MakeMaker's
+neatvalue format.
+
+=item C<o conf E<lt>list optionE<gt> [shift|pop]>
+
+shifts or pops the array in the I<list option> variable
+
+=item C<o conf E<lt>list optionE<gt> [unshift|push|splice] E<lt>listE<gt>>
+
+works like the corresponding perl commands.
+
+=item interactive editing: o conf init [MATCH|LIST]
+
+Runs an interactive configuration dialog for matching variables.
+Without argument runs the dialog over all supported config variables.
+To specify a MATCH the argument must be enclosed by slashes.
+
+Examples:
+
+  o conf init ftp_passive ftp_proxy
+  o conf init /color/
+
+Note: this method of setting config variables often provides more
+explanation about the functioning of a variable than the manpage.
+
+=back
+
+=head2 CPAN::anycwd($path): Note on config variable getcwd
+
+CPAN.pm changes the current working directory often and needs to
+determine its own current working directory. Per default it uses
+Cwd::cwd but if this doesn't work on your system for some reason,
+alternatives can be configured according to the following table:
+
+=over 4
+
+=item cwd
+
+Calls Cwd::cwd
+
+=item getcwd
+
+Calls Cwd::getcwd
+
+=item fastcwd
+
+Calls Cwd::fastcwd
+
+=item backtickcwd
+
+Calls the external command cwd.
+
+=back
+
+=head2 Note on the format of the urllist parameter
+
+urllist parameters are URLs according to RFC 1738. We do a little
+guessing if your URL is not compliant, but if you have problems with
+C<file> URLs, please try the correct format. Either:
+
+    file://localhost/whatever/ftp/pub/CPAN/
+
+or
+
+    file:///home/ftp/pub/CPAN/
+
+=head2 The urllist parameter has CD-ROM support
+
+The C<urllist> parameter of the configuration table contains a list of
+URLs that are to be used for downloading. If the list contains any
+C<file> URLs, CPAN always tries to get files from there first. This
+feature is disabled for index files. So the recommendation for the
+owner of a CD-ROM with CPAN contents is: include your local, possibly
+outdated CD-ROM as a C<file> URL at the end of urllist, e.g.
+
+  o conf urllist push file://localhost/CDROM/CPAN
+
+CPAN.pm will then fetch the index files from one of the CPAN sites
+that come at the beginning of urllist. It will later check for each
+module if there is a local copy of the most recent version.
+
+Another peculiarity of urllist is that the site that we could
+successfully fetch the last file from automatically gets a preference
+token and is tried as the first site for the next request. So if you
+add a new site at runtime it may happen that the previously preferred
+site will be tried another time. This means that if you want to disallow
+a site for the next transfer, it must be explicitly removed from
+urllist.
+
+=head2 Maintaining the urllist parameter
+
+If you have YAML.pm (or some other YAML module configured in
+C<yaml_module>) installed, CPAN.pm collects a few statistical data
+about recent downloads. You can view the statistics with the C<hosts>
+command or inspect them directly by looking into the C<FTPstats.yml>
+file in your C<cpan_home> directory.
+
+To get some interesting statistics it is recommended to set the
+C<randomize_urllist> parameter that introduces some amount of
+randomness into the URL selection.
+
+=head2 The C<requires> and C<build_requires> dependency declarations
+
+Since CPAN.pm version 1.88_51 modules declared as C<build_requires> by
+a distribution are treated differently depending on the config
+variable C<build_requires_install_policy>. By setting
+C<build_requires_install_policy> to C<no> such a module is not being
+installed. It is only built and tested and then kept in the list of
+tested but uninstalled modules. As such it is available during the
+build of the dependent module by integrating the path to the
+C<blib/arch> and C<blib/lib> directories in the environment variable
+PERL5LIB. If C<build_requires_install_policy> is set ti C<yes>, then
+both modules declared as C<requires> and those declared as
+C<build_requires> are treated alike. By setting to C<ask/yes> or
+C<ask/no>, CPAN.pm asks the user and sets the default accordingly.
+
+=head2 Configuration for individual distributions (I<Distroprefs>)
+
+(B<Note:> This feature has been introduced in CPAN.pm 1.8854 and is
+still considered beta quality)
+
+Distributions on the CPAN usually behave according to what we call the
+CPAN mantra. Or since the event of Module::Build we should talk about
+two mantras:
+
+    perl Makefile.PL     perl Build.PL
+    make                 ./Build
+    make test            ./Build test
+    make install         ./Build install
+
+But some modules cannot be built with this mantra. They try to get
+some extra data from the user via the environment, extra arguments or
+interactively thus disturbing the installation of large bundles like
+Phalanx100 or modules with many dependencies like Plagger.
+
+The distroprefs system of C<CPAN.pm> addresses this problem by
+allowing the user to specify extra informations and recipes in YAML
+files to either
+
+=over
+
+=item
+
+pass additional arguments to one of the four commands,
+
+=item
+
+set environment variables
+
+=item
+
+instantiate an Expect object that reads from the console, waits for
+some regular expressions and enters some answers
+
+=item
+
+temporarily override assorted C<CPAN.pm> configuration variables
+
+=item
+
+specify dependencies that the original maintainer forgot to specify
+
+=item
+
+disable the installation of an object altogether
+
+=back
+
+See the YAML and Data::Dumper files that come with the C<CPAN.pm>
+distribution in the C<distroprefs/> directory for examples.
+
+=head2 Filenames
+
+The YAML files themselves must have the C<.yml> extension, all other
+files are ignored (for two exceptions see I<Fallback Data::Dumper and
+Storable> below). The containing directory can be specified in
+C<CPAN.pm> in the C<prefs_dir> config variable. Try C<o conf init
+prefs_dir> in the CPAN shell to set and activate the distroprefs
+system.
+
+Every YAML file may contain arbitrary documents according to the YAML
+specification and every single document is treated as an entity that
+can specify the treatment of a single distribution.
+
+The names of the files can be picked freely, C<CPAN.pm> always reads
+all files (in alphabetical order) and takes the key C<match> (see
+below in I<Language Specs>) as a hashref containing match criteria
+that determine if the current distribution matches the YAML document
+or not.
+
+=head2 Fallback Data::Dumper and Storable
+
+If neither your configured C<yaml_module> nor YAML.pm is installed
+CPAN.pm falls back to using Data::Dumper and Storable and looks for
+files with the extensions C<.dd> or C<.st> in the C<prefs_dir>
+directory. These files are expected to contain one or more hashrefs.
+For Data::Dumper generated files, this is expected to be done with by
+defining C<$VAR1>, C<$VAR2>, etc. The YAML shell would produce these
+with the command
+
+    ysh < somefile.yml > somefile.dd
+
+For Storable files the rule is that they must be constructed such that
+C<Storable::retrieve(file)> returns an array reference and the array
+elements represent one distropref object each. The conversion from
+YAML would look like so:
+
+    perl -MYAML=LoadFile -MStorable=nstore -e '
+        @y=LoadFile(shift);
+        nstore(\@y, shift)' somefile.yml somefile.st
+
+In bootstrapping situations it is usually sufficient to translate only
+a few YAML files to Data::Dumper for the crucial modules like
+C<YAML::Syck>, C<YAML.pm> and C<Expect.pm>. If you prefer Storable
+over Data::Dumper, remember to pull out a Storable version that writes
+an older format than all the other Storable versions that will need to
+read them.
+
+=head2 Blueprint
+
+The following example contains all supported keywords and structures
+with the exception of C<eexpect> which can be used instead of
+C<expect>.
+
+  ---
+  comment: "Demo"
+  match:
+    module: "Dancing::Queen"
+    distribution: "^CHACHACHA/Dancing-"
+    perl: "/usr/local/cariba-perl/bin/perl"
+    perlconfig:
+      archname: "freebsd"
+  disabled: 1
+  cpanconfig:
+    make: gmake
+  pl:
+    args:
+      - "--somearg=specialcase"
+
+    env: {}
+
+    expect:
+      - "Which is your favorite fruit"
+      - "apple\n"
+
+  make:
+    args:
+      - all
+      - extra-all
+
+    env: {}
+
+    expect: []
+
+    commendline: "echo SKIPPING make"
+
+  test:
+    args: []
+
+    env: {}
+
+    expect: []
+
+  install:
+    args: []
+
+    env:
+      WANT_TO_INSTALL: YES
+
+    expect:
+      - "Do you really want to install"
+      - "y\n"
+
+  patches:
+    - "ABCDE/Fedcba-3.14-ABCDE-01.patch"
+
+  depends:
+    configure_requires:
+      LWP: 5.8
+    build_requires:
+      Test::Exception: 0.25
+    requires:
+      Spiffy: 0.30
+
+
+=head2 Language Specs
+
+Every YAML document represents a single hash reference. The valid keys
+in this hash are as follows:
+
+=over
+
+=item comment [scalar]
+
+A comment
+
+=item cpanconfig [hash]
+
+Temporarily override assorted C<CPAN.pm> configuration variables.
+
+Supported are: C<build_requires_install_policy>, C<check_sigs>,
+C<make>, C<make_install_make_command>, C<prefer_installer>,
+C<test_report>. Please report as a bug when you need another one
+supported.
+
+=item depends [hash] *** EXPERIMENTAL FEATURE ***
+
+All three types, namely C<configure_requires>, C<build_requires>, and
+C<requires> are supported in the way specified in the META.yml
+specification. The current implementation I<merges> the specified
+dependencies with those declared by the package maintainer. In a
+future implementation this may be changed to override the original
+declaration.
+
+=item disabled [boolean]
+
+Specifies that this distribution shall not be processed at all.
+
+=item goto [string]
+
+The canonical name of a delegate distribution that shall be installed
+instead. Useful when a new version, although it tests OK itself,
+breaks something else or a developer release or a fork is already
+uploaded that is better than the last released version.
+
+=item install [hash]
+
+Processing instructions for the C<make install> or C<./Build install>
+phase of the CPAN mantra. See below under I<Processiong Instructions>.
+
+=item make [hash]
+
+Processing instructions for the C<make> or C<./Build> phase of the
+CPAN mantra. See below under I<Processiong Instructions>.
+
+=item match [hash]
+
+A hashref with one or more of the keys C<distribution>, C<modules>,
+C<perl>, and C<perlconfig> that specify if a document is targeted at a
+specific CPAN distribution or installation.
+
+The corresponding values are interpreted as regular expressions. The
+C<distribution> related one will be matched against the canonical
+distribution name, e.g. "AUTHOR/Foo-Bar-3.14.tar.gz".
+
+The C<module> related one will be matched against I<all> modules
+contained in the distribution until one module matches.
+
+The C<perl> related one will be matched against C<$^X>.
+
+The value associated with C<perlconfig> is itself a hashref that is
+matched against corresponding values in the C<%Config::Config> hash
+living in the C< Config.pm > module.
+
+If more than one restriction of C<module>, C<distribution>, and
+C<perl> is specified, the results of the separately computed match
+values must all match. If this is the case then the hashref
+represented by the YAML document is returned as the preference
+structure for the current distribution.
+
+=item patches [array]
+
+An array of patches on CPAN or on the local disk to be applied in
+order via the external patch program. If the value for the C<-p>
+parameter is C<0> or C<1> is determined by reading the patch
+beforehand.
+
+Note: if the C<applypatch> program is installed and C<CPAN::Config>
+knows about it B<and> a patch is written by the C<makepatch> program,
+then C<CPAN.pm> lets C<applypatch> apply the patch. Both C<makepatch>
+and C<applypatch> are available from CPAN in the C<JV/makepatch-*>
+distribution.
+
+=item pl [hash]
+
+Processing instructions for the C<perl Makefile.PL> or C<perl
+Build.PL> phase of the CPAN mantra. See below under I<Processiong
+Instructions>.
+
+=item test [hash]
+
+Processing instructions for the C<make test> or C<./Build test> phase
+of the CPAN mantra. See below under I<Processiong Instructions>.
+
+=back
+
+=head2 Processing Instructions
+
+=over
+
+=item args [array]
+
+Arguments to be added to the command line
+
+=item commandline
+
+A full commandline that will be executed as it stands by a system
+call. During the execution the environment variable PERL will is set
+to $^X. If C<commandline> is specified, the content of C<args> is not
+used.
+
+=item eexpect [hash]
+
+Extended C<expect>. This is a hash reference with four allowed keys,
+C<mode>, C<timeout>, C<reuse>, and C<talk>.
+
+C<mode> may have the values C<deterministic> for the case where all
+questions come in the order written down and C<anyorder> for the case
+where the questions may come in any order. The default mode is
+C<deterministic>.
+
+C<timeout> denotes a timeout in seconds. Floating point timeouts are
+OK. In the case of a C<mode=deterministic> the timeout denotes the
+timeout per question, in the case of C<mode=anyorder> it denotes the
+timeout per byte received from the stream or questions.
+
+C<talk> is a reference to an array that contains alternating questions
+and answers. Questions are regular expressions and answers are literal
+strings. The Expect module will then watch the stream coming from the
+execution of the external program (C<perl Makefile.PL>, C<perl
+Build.PL>, C<make>, etc.).
+
+In the case of C<mode=deterministic> the CPAN.pm will inject the
+according answer as soon as the stream matches the regular expression.
+
+In the case of C<mode=anyorder> CPAN.pm will answer a question as soon
+as the timeout is reached for the next byte in the input stream. In
+this mode you can use the C<reuse> parameter to decide what shall
+happen with a question-answer pair after it has been used. In the
+default case (reuse=0) it is removed from the array, so it cannot be
+used again accidentally. In this case, if you want to answer the
+question C<Do you really want to do that> several times, then it must
+be included in the array at least as often as you want this answer to
+be given. Setting the parameter C<reuse> to 1 makes this repetition
+unnecessary.
+
+=item env [hash]
+
+Environment variables to be set during the command
+
+=item expect [array]
+
+C<< expect: <array> >> is a short notation for
+
+  eexpect:
+    mode: deterministic
+    timeout: 15
+    talk: <array>
+
+=back
+
+=head2 Schema verification with C<Kwalify>
+
+If you have the C<Kwalify> module installed (which is part of the
+Bundle::CPANxxl), then all your distroprefs files are checked for
+syntactical correctness.
+
+=head2 Example Distroprefs Files
+
+C<CPAN.pm> comes with a collection of example YAML files. Note that these
+are really just examples and should not be used without care because
+they cannot fit everybody's purpose. After all the authors of the
+packages that ask questions had a need to ask, so you should watch
+their questions and adjust the examples to your environment and your
+needs. You have beend warned:-)
+
+=head1 PROGRAMMER'S INTERFACE
+
+If you do not enter the shell, the available shell commands are both
+available as methods (C<CPAN::Shell-E<gt>install(...)>) and as
+functions in the calling package (C<install(...)>).  Before calling low-level
+commands it makes sense to initialize components of CPAN you need, e.g.:
+
+  CPAN::HandleConfig->load;
+  CPAN::Shell::setup_output;
+  CPAN::Index->reload;
+
+High-level commands do such initializations automatically.
+
+There's currently only one class that has a stable interface -
+CPAN::Shell. All commands that are available in the CPAN shell are
+methods of the class CPAN::Shell. Each of the commands that produce
+listings of modules (C<r>, C<autobundle>, C<u>) also return a list of
+the IDs of all modules within the list.
+
+=over 2
+
+=item expand($type,@things)
+
+The IDs of all objects available within a program are strings that can
+be expanded to the corresponding real objects with the
+C<CPAN::Shell-E<gt>expand("Module",@things)> method. Expand returns a
+list of CPAN::Module objects according to the C<@things> arguments
+given. In scalar context it only returns the first element of the
+list.
+
+=item expandany(@things)
+
+Like expand, but returns objects of the appropriate type, i.e.
+CPAN::Bundle objects for bundles, CPAN::Module objects for modules and
+CPAN::Distribution objects for distributions. Note: it does not expand
+to CPAN::Author objects.
+
+=item Programming Examples
+
+This enables the programmer to do operations that combine
+functionalities that are available in the shell.
+
+    # install everything that is outdated on my disk:
+    perl -MCPAN -e 'CPAN::Shell->install(CPAN::Shell->r)'
+
+    # install my favorite programs if necessary:
+    for $mod (qw(Net::FTP Digest::SHA Data::Dumper)) {
+        CPAN::Shell->install($mod);
+    }
+
+    # list all modules on my disk that have no VERSION number
+    for $mod (CPAN::Shell->expand("Module","/./")) {
+        next unless $mod->inst_file;
+        # MakeMaker convention for undefined $VERSION:
+        next unless $mod->inst_version eq "undef";
+        print "No VERSION in ", $mod->id, "\n";
+    }
+
+    # find out which distribution on CPAN contains a module:
+    print CPAN::Shell->expand("Module","Apache::Constants")->cpan_file
+
+Or if you want to write a cronjob to watch The CPAN, you could list
+all modules that need updating. First a quick and dirty way:
+
+    perl -e 'use CPAN; CPAN::Shell->r;'
+
+If you don't want to get any output in the case that all modules are
+up to date, you can parse the output of above command for the regular
+expression //modules are up to date// and decide to mail the output
+only if it doesn't match. Ick?
+
+If you prefer to do it more in a programmer style in one single
+process, maybe something like this suits you better:
+
+  # list all modules on my disk that have newer versions on CPAN
+  for $mod (CPAN::Shell->expand("Module","/./")) {
+    next unless $mod->inst_file;
+    next if $mod->uptodate;
+    printf "Module %s is installed as %s, could be updated to %s from CPAN\n",
+        $mod->id, $mod->inst_version, $mod->cpan_version;
+  }
+
+If that gives you too much output every day, you maybe only want to
 watch for three modules. You can write
 
-  for $mod (CPAN::Shell->expand("Module","/Apache|LWP|CGI/")){
+  for $mod (CPAN::Shell->expand("Module","/Apache|LWP|CGI/")) {
 
 as the first line instead. Or you can combine some of the above
 tricks:
@@ -8087,12 +11444,6 @@ tricks:
 
 =head2 Methods in the other Classes
 
-The programming interface for the classes CPAN::Module,
-CPAN::Distribution, CPAN::Bundle, and CPAN::Author is still considered
-beta and partially even alpha. In the following paragraphs only those
-methods are documented that have proven useful over a longer time and
-thus are unlikely to change.
-
 =over 4
 
 =item CPAN::Author::as_glimpse()
@@ -8134,12 +11485,13 @@ objects may be bundles, modules or distributions.
 
 =item CPAN::Bundle::force($method,@args)
 
-Forces CPAN to perform a task that normally would have failed. Force
-takes as arguments a method name to be called and any number of
-additional arguments that should be passed to the called method. The
-internals of the object get the needed changes so that CPAN.pm does
-not refuse to take the action. The C<force> is passed recursively to
-all contained objects.
+Forces CPAN to perform a task that it normally would have refused to
+do. Force takes as arguments a method name to be called and any number
+of additional arguments that should be passed to the called method.
+The internals of the object get the needed changes so that CPAN.pm
+does not refuse to take the action. The C<force> is passed recursively
+to all contained objects. See also the section above on the C<force>
+and the C<fforce> pragma.
 
 =item CPAN::Bundle::get()
 
@@ -8188,6 +11540,16 @@ Returns a multi-line description of the distribution
 Returns the CPAN::Author object of the maintainer who uploaded this
 distribution
 
+=item CPAN::Distribution::pretty_id()
+
+Returns a string of the form "AUTHORID/TARBALL", where AUTHORID is the
+author's PAUSE ID and TARBALL is the distribution filename.
+
+=item CPAN::Distribution::base_id()
+
+Returns the distribution filename without any archive suffix.  E.g
+"Foo-Bar-0.01"
+
 =item CPAN::Distribution::clean()
 
 Changes to the directory where the distribution has been unpacked and
@@ -8215,11 +11577,12 @@ Returns the directory into which this distribution has been unpacked.
 
 =item CPAN::Distribution::force($method,@args)
 
-Forces CPAN to perform a task that normally would have failed. Force
-takes as arguments a method name to be called and any number of
-additional arguments that should be passed to the called method. The
-internals of the object get the needed changes so that CPAN.pm does
-not refuse to take the action.
+Forces CPAN to perform a task that it normally would have refused to
+do. Force takes as arguments a method name to be called and any number
+of additional arguments that should be passed to the called method.
+The internals of the object get the needed changes so that CPAN.pm
+does not refuse to take the action. See also the section above on the
+C<force> and the C<fforce> pragma.
 
 =item CPAN::Distribution::get()
 
@@ -8242,6 +11605,11 @@ its dependencies, use CPAN::Shell->install.
 
 Note that install() gives no meaningful return value. See uptodate().
 
+=item CPAN::Distribution::install_tested()
+
+Install all the distributions that have been tested sucessfully but
+not yet installed. See also C<is_tested>.
+
 =item CPAN::Distribution::isa_perl()
 
 Returns 1 if this distribution file seems to be a perl distribution.
@@ -8249,6 +11617,11 @@ Normally this is derived from the file name only, but the index from
 CPAN can contain a hint to achieve a return value of true for other
 filenames too.
 
+=item CPAN::Distribution::is_tested()
+
+List all the distributions that have been tested sucessfully but not
+yet installed. See also C<install_tested>.
+
 =item CPAN::Distribution::look()
 
 Changes to the directory where the distribution has been unpacked and
@@ -8286,21 +11659,31 @@ attributes are optional.
 =item CPAN::Distribution::prereq_pm()
 
 Returns the hash reference that has been announced by a distribution
-as the merge of the C<requires> element and the C<build_requires>
-element of the META.yml or the C<PREREQ_PM> hash in the
-C<Makefile.PL>. Note: works only after an attempt has been made to
-C<make> the distribution. Returns undef otherwise.
+as the the C<requires> and C<build_requires> elements. These can be
+declared either by the C<META.yml> (if authoritative) or can be
+deposited after the run of C<Build.PL> in the file C<./_build/prereqs>
+or after the run of C<Makfile.PL> written as the C<PREREQ_PM> hash in
+a comment in the produced C<Makefile>. I<Note>: this method only works
+after an attempt has been made to C<make> the distribution. Returns
+undef otherwise.
 
 =item CPAN::Distribution::readme()
 
 Downloads the README file associated with a distribution and runs it
 through the pager specified in C<$CPAN::Config->{pager}>.
 
+=item CPAN::Distribution::reports()
+
+Downloads report data for this distribution from cpantesters.perl.org
+and displays a subset of them.
+
 =item CPAN::Distribution::read_yaml()
 
 Returns the content of the META.yml of this distro as a hashref. Note:
 works only after an attempt has been made to C<make> the distribution.
-Returns undef otherwise.
+Returns undef otherwise. Also returns undef if the content of META.yml
+is not authoritative. (The rules about what exactly makes the content
+authoritative are still in flux.)
 
 =item CPAN::Distribution::test()
 
@@ -8418,6 +11801,7 @@ Where the 'DSLIP' characters have the following meanings:
           "GNU Library General Public License")
     b   - BSD: The BSD License
     a   - Artistic license alone
+    2   - Artistic license 2.0 or later
     o   - open source: appoved by www.opensource.org
     d   - allows distribution without restrictions
     r   - restricted distribtion
@@ -8425,11 +11809,12 @@ Where the 'DSLIP' characters have the following meanings:
 
 =item CPAN::Module::force($method,@args)
 
-Forces CPAN to perform a task that normally would have failed. Force
-takes as arguments a method name to be called and any number of
-additional arguments that should be passed to the called method. The
-internals of the object get the needed changes so that CPAN.pm does
-not refuse to take the action.
+Forces CPAN to perform a task that it normally would have refused to
+do. Force takes as arguments a method name to be called and any number
+of additional arguments that should be passed to the called method.
+The internals of the object get the needed changes so that CPAN.pm
+does not refuse to take the action. See also the section above on the
+C<force> and the C<fforce> pragma.
 
 =item CPAN::Module::get()
 
@@ -8441,9 +11826,20 @@ Returns the filename of the module found in @INC. The first file found
 is reported just like perl itself stops searching @INC when it finds a
 module.
 
+=item CPAN::Module::available_file()
+
+Returns the filename of the module found in PERL5LIB or @INC. The
+first file found is reported. The advantage of this method over
+C<inst_file> is that modules that have been tested but not yet
+installed are included because PERL5LIB keeps track of tested modules.
+
 =item CPAN::Module::inst_version()
 
-Returns the version number of the module in readable format.
+Returns the version number of the installed module in readable format.
+
+=item CPAN::Module::available_version()
+
+Returns the version number of the available module in readable format.
 
 =item CPAN::Module::install()
 
@@ -8474,6 +11870,10 @@ Runs a C<perldoc> on this module.
 
 Runs a C<readme> on the distribution associated with this module.
 
+=item CPAN::Module::reports()
+
+Calls the reports() method on the associated distribution object.
+
 =item CPAN::Module::test()
 
 Runs a C<test> on the distribution associated with this module.
@@ -8516,7 +11916,7 @@ variable. After that the pod section looks like any other pod with the
 only difference being that I<one special pod section> exists starting with
 (verbatim):
 
-       =head1 CONTENTS
+    =head1 CONTENTS
 
 In this pod section each line obeys the format
 
@@ -8644,14 +12044,23 @@ with this floppy. See also below the paragraph about CD-ROM support.
 
 =item has_inst($module)
 
-Returns true if the module is installed. See the source for details.
+Returns true if the module is installed. Used to load all modules into
+the running CPAN.pm which are considered optional. The config variable
+C<dontload_list> can be used to intercept the C<has_inst()> call such
+that an optional module is not loaded despite being available. For
+example the following command will prevent that C<YAML.pm> is being
+loaded:
 
-=item has_usable($module)
+    cpan> o conf dontload_list push YAML
 
-Returns true if the module is installed and several and is in a usable
-state. Only useful for a handful of modules that are used internally.
 See the source for details.
 
+=item has_usable($module)
+
+Returns true if the module is installed and is in a usable state. Only
+useful for a handful of modules that are used internally. See the
+source for details.
+
 =item instance($module)
 
 The constructor for all the singletons used to represent modules,
@@ -8660,230 +12069,6 @@ method returns the object, otherwise it calls the constructor.
 
 =back
 
-=head1 CONFIGURATION
-
-When the CPAN module is used for the first time, a configuration
-dialog tries to determine a couple of site specific options. The
-result of the dialog is stored in a hash reference C< $CPAN::Config >
-in a file CPAN/Config.pm.
-
-The default values defined in the CPAN/Config.pm file can be
-overridden in a user specific file: CPAN/MyConfig.pm. Such a file is
-best placed in $HOME/.cpan/CPAN/MyConfig.pm, because $HOME/.cpan is
-added to the search path of the CPAN module before the use() or
-require() statements.
-
-The configuration dialog can be started any time later again by
-issuing the command C< o conf init > in the CPAN shell. A subset of
-the configuration dialog can be run by issuing C<o conf init WORD>
-where WORD is any valid config variable or a regular expression.
-
-Currently the following keys in the hash reference $CPAN::Config are
-defined:
-
-  build_cache        size of cache for directories to build modules
-  build_dir          locally accessible directory to build modules
-  build_requires_install_policy
-                     to install or not to install: when a module is
-                     only needed for building. yes|no|ask/yes|ask/no
-  bzip2              path to external prg
-  cache_metadata     use serializer to cache metadata
-  commands_quote     prefered character to use for quoting external
-                     commands when running them. Defaults to double
-                     quote on Windows, single tick everywhere else;
-                     can be set to space to disable quoting
-  check_sigs         if signatures should be verified
-  colorize_output    boolean if Term::ANSIColor should colorize output
-  colorize_print     Term::ANSIColor attributes for normal output
-  colorize_warn      Term::ANSIColor attributes for warnings
-  commandnumber_in_prompt
-                     boolean if you want to see current command number
-  cpan_home          local directory reserved for this package
-  curl               path to external prg
-  dontload_hash      DEPRECATED
-  dontload_list      arrayref: modules in the list will not be
-                     loaded by the CPAN::has_inst() routine
-  ftp                path to external prg
-  ftp_passive        if set, the envariable FTP_PASSIVE is set for downloads
-  ftp_proxy          proxy host for ftp requests
-  getcwd             see below
-  gpg                path to external prg
-  gzip              location of external program gzip
-  histfile           file to maintain history between sessions
-  histsize           maximum number of lines to keep in histfile
-  http_proxy         proxy host for http requests
-  inactivity_timeout breaks interactive Makefile.PLs or Build.PLs
-                     after this many seconds inactivity. Set to 0 to
-                     never break.
-  index_expire       after this many days refetch index files
-  inhibit_startup_message
-                     if true, does not print the startup message
-  keep_source_where  directory in which to keep the source (if we do)
-  lynx               path to external prg
-  make               location of external make program
-  make_arg          arguments that should always be passed to 'make'
-  make_install_make_command
-                     the make command for running 'make install', for
-                     example 'sudo make'
-  make_install_arg   same as make_arg for 'make install'
-  makepl_arg        arguments passed to 'perl Makefile.PL'
-  mbuild_arg        arguments passed to './Build'
-  mbuild_install_arg arguments passed to './Build install'
-  mbuild_install_build_command
-                     command to use instead of './Build' when we are
-                     in the install stage, for example 'sudo ./Build'
-  mbuildpl_arg       arguments passed to 'perl Build.PL'
-  ncftp              path to external prg
-  ncftpget           path to external prg
-  no_proxy           don't proxy to these hosts/domains (comma separated list)
-  pager              location of external program more (or any pager)
-  password           your password if you CPAN server wants one
-  prefer_installer   legal values are MB and EUMM: if a module comes
-                     with both a Makefile.PL and a Build.PL, use the
-                     former (EUMM) or the latter (MB); if the module
-                     comes with only one of the two, that one will be
-                     used in any case
-  prerequisites_policy
-                     what to do if you are missing module prerequisites
-                     ('follow' automatically, 'ask' me, or 'ignore')
-  prefs_dir          local directory to store per-distro build options
-  proxy_user         username for accessing an authenticating proxy
-  proxy_pass         password for accessing an authenticating proxy
-  scan_cache        controls scanning of cache ('atstart' or 'never')
-  shell              your favorite shell
-  show_upload_date   boolean if commands should try to determine upload date
-  tar                location of external program tar
-  term_is_latin      if true internal UTF-8 is translated to ISO-8859-1
-                     (and nonsense for characters outside latin range)
-  term_ornaments     boolean to turn ReadLine ornamenting on/off
-  test_report        email test reports (if CPAN::Reporter is installed)
-  unzip              location of external program unzip
-  urllist           arrayref to nearby CPAN sites (or equivalent locations)
-  username           your username if you CPAN server wants one
-  wait_list          arrayref to a wait server to try (See CPAN::WAIT)
-  wget               path to external prg
-  yaml_module        which module to use to read/write YAML files
-
-You can set and query each of these options interactively in the cpan
-shell with the command set defined within the C<o conf> command:
-
-=over 2
-
-=item C<o conf E<lt>scalar optionE<gt>>
-
-prints the current value of the I<scalar option>
-
-=item C<o conf E<lt>scalar optionE<gt> E<lt>valueE<gt>>
-
-Sets the value of the I<scalar option> to I<value>
-
-=item C<o conf E<lt>list optionE<gt>>
-
-prints the current value of the I<list option> in MakeMaker's
-neatvalue format.
-
-=item C<o conf E<lt>list optionE<gt> [shift|pop]>
-
-shifts or pops the array in the I<list option> variable
-
-=item C<o conf E<lt>list optionE<gt> [unshift|push|splice] E<lt>listE<gt>>
-
-works like the corresponding perl commands.
-
-=back
-
-=head2 CPAN::anycwd($path): Note on config variable getcwd
-
-CPAN.pm changes the current working directory often and needs to
-determine its own current working directory. Per default it uses
-Cwd::cwd but if this doesn't work on your system for some reason,
-alternatives can be configured according to the following table:
-
-=over 2
-
-=item cwd
-
-Calls Cwd::cwd
-
-=item getcwd
-
-Calls Cwd::getcwd
-
-=item fastcwd
-
-Calls Cwd::fastcwd
-
-=item backtickcwd
-
-Calls the external command cwd.
-
-=back
-
-=head2 Note on urllist parameter's format
-
-urllist parameters are URLs according to RFC 1738. We do a little
-guessing if your URL is not compliant, but if you have problems with
-file URLs, please try the correct format. Either:
-
-    file://localhost/whatever/ftp/pub/CPAN/
-
-or
-
-    file:///home/ftp/pub/CPAN/
-
-=head2 urllist parameter has CD-ROM support
-
-The C<urllist> parameter of the configuration table contains a list of
-URLs that are to be used for downloading. If the list contains any
-C<file> URLs, CPAN always tries to get files from there first. This
-feature is disabled for index files. So the recommendation for the
-owner of a CD-ROM with CPAN contents is: include your local, possibly
-outdated CD-ROM as a C<file> URL at the end of urllist, e.g.
-
-  o conf urllist push file://localhost/CDROM/CPAN
-
-CPAN.pm will then fetch the index files from one of the CPAN sites
-that come at the beginning of urllist. It will later check for each
-module if there is a local copy of the most recent version.
-
-Another peculiarity of urllist is that the site that we could
-successfully fetch the last file from automatically gets a preference
-token and is tried as the first site for the next request. So if you
-add a new site at runtime it may happen that the previously preferred
-site will be tried another time. This means that if you want to disallow
-a site for the next transfer, it must be explicitly removed from
-urllist.
-
-=head2 prefs_dir for avoiding interactive questions (ALPHA)
-
-(B<Note:> This feature has been introduced in CPAN.pm 1.8854 and is
-still considered experimental and may still be changed)
-
-The files in the directory specified in C<prefs_dir> are YAML files
-that specify how CPAN.pm shall treat distributions that deviate from
-the normal non-interactive model of building and installing CPAN
-modules.
-
-Some modules try to get some data from the user interactively thus
-disturbing the installation of large bundles like Phalanx100 or
-modules like Plagger.
-
-CPAN.pm can use YAML files to either pass additional arguments to one
-of the four commands, set environment variables or instantiate an
-Expect object that reads from the console, waits for some regular
-expression and enters some answer. Needless to say that for the latter
-option Expect.pm needs to be installed.
-
-CPAN.pm comes with a couple of such YAML files. The structure is
-currently not documented. Please see the distroprefs directory of the
-CPAN distribution for examples and follow the README in there.
-
-Please note that setting the environment variable PERL_MM_USE_DEFAULT
-to a true value can also get you a long way if you want to always pick
-the default answers. But this only works if the author of apackage
-used the prompt function provided by ExtUtils::MakeMaker and if the
-defaults are OK for you.
-
 =head1 SECURITY
 
 There's no strong security layer in CPAN.pm. CPAN.pm helps you to
@@ -8921,6 +12106,16 @@ When the CPAN shell enters a subshell via the look command, it sets
 the environment CPAN_SHELL_LEVEL to 1 or increments it if it is
 already set.
 
+When CPAN runs, it sets the environment variable PERL5_CPAN_IS_RUNNING
+to the ID of the running process. It also sets
+PERL5_CPANPLUS_IS_RUNNING to prevent runaway processes which could
+happen with older versions of Module::Install.
+
+When running C<perl Makefile.PL>, the environment variable
+C<PERL5_CPAN_IS_EXECUTING> is set to the full path of the
+C<Makefile.PL> that is being executed. This prevents runaway processes
+with newer versions of Module::Install.
+
 When the config variable ftp_passive is set, all downloads will be run
 with the environment variable FTP_PASSIVE set to this value. This is
 in general a good idea as it influences both Net::FTP and LWP based
@@ -9125,10 +12320,21 @@ You will most probably also want to configure something like this:
 
   o conf makepl_arg "LIB=~/myperl/lib \
                     INSTALLMAN1DIR=~/myperl/man/man1 \
-                    INSTALLMAN3DIR=~/myperl/man/man3"
+                    INSTALLMAN3DIR=~/myperl/man/man3 \
+                    INSTALLSCRIPT=~/myperl/bin \
+                    INSTALLBIN=~/myperl/bin"
+
+and then (oh joy) the equivalent command for Module::Build. That would
+be
+
+  o conf mbuildpl_arg "--lib=~/myperl/lib \
+                    --installman1dir=~/myperl/man/man1 \
+                    --installman3dir=~/myperl/man/man3 \
+                    --installscript=~/myperl/bin \
+                    --installbin=~/myperl/bin"
 
 You can make this setting permanent like all C<o conf> settings with
-C<o conf commit>.
+C<o conf commit> or by setting C<auto_commit> beforehand.
 
 You will have to add ~/myperl/man to the MANPATH environment variable
 and also tell your perl programs to look into ~/myperl/lib, e.g. by
@@ -9143,7 +12349,7 @@ that for Windows we use the File::HomeDir module that provides an
 equivalent to the concept of the home directory on Unix.
 
 Another thing you should bear in mind is that the UNINST parameter can
-be dnagerous when you are installing into a private area because you
+be dangerous when you are installing into a private area because you
 might accidentally remove modules that other people depend on that are
 not using the private area.
 
@@ -9207,6 +12413,10 @@ If other charset support is needed, please file a bugreport against
 CPAN.pm at rt.cpan.org and describe your needs. Maybe we can extend
 the support or maybe UTF-8 terminals become widely available.
 
+Note: this config variable is deprecated and will be removed in a
+future version of CPAN.pm. It will be replaced with the conventions
+around the family of $LANG and $LC_* environment variables.
+
 =item 11)
 
 When an install fails for some reason and then I correct the error
@@ -9217,32 +12427,12 @@ Use the force pragma like so
 
   force install Foo::Bar
 
-This does a bit more than really needed because it untars the
-distribution again and runs make and test and only then install.
-
-Or, if you find this is too fast and you would prefer to do smaller
-steps, say
-
-  force get Foo::Bar
-
-first and then continue as always. C<Force get> I<forgets> previous
-error conditions.
-
 Or you can use
 
   look Foo::Bar
 
 and then 'make install' directly in the subshell.
 
-Or you leave the CPAN shell and start it again.
-
-For the really curious, by accessing internals directly, you I<could>
-
-  !delete CPAN::Shell->expandany("Foo::Bar")->distribution->{install}
-
-but this is neither guaranteed to work in the future nor is it a
-decent command.
-
 =item 12)
 
 How do I install a "DEVELOPER RELEASE" of a module?
@@ -9271,24 +12461,58 @@ nice about obeying that variable as well):
 
 =item 14)
 
-How do I create a Module::Build based Build.PL derived from an 
+How do I create a Module::Build based Build.PL derived from an
 ExtUtils::MakeMaker focused Makefile.PL?
 
 http://search.cpan.org/search?query=Module::Build::Convert
 
-http://accognoscere.org/papers/perl-module-build-convert/module-build-convert.html
+http://www.refcnt.org/papers/module-build-convert
+
+=item 15)
+
+What's the best CPAN site for me?
+
+The urllist config parameter is yours. You can add and remove sites at
+will. You should find out which sites have the best uptodateness,
+bandwidth, reliability, etc. and are topologically close to you. Some
+people prefer fast downloads, others uptodateness, others reliability.
+You decide which to try in which order.
+
+Henk P. Penning maintains a site that collects data about CPAN sites:
+
+  http://www.cs.uu.nl/people/henkp/mirmon/cpan.html
+
+=item 16)
 
+Why do I get asked the same questions every time I start the shell?
+
+You can make your configuration changes permanent by calling the
+command C<o conf commit>. Alternatively set the C<auto_commit>
+variable to true by running C<o conf init auto_commit> and answering
+the following question with yes.
 
 =back
 
-=head1 BUGS
+=head1 COMPATIBILITY
 
-Please report bugs via http://rt.cpan.org/
+=head2 OLD PERL VERSIONS
 
-Before submitting a bug, please make sure that the traditional method
-of building a Perl module package from a shell by following the
-installation instructions of that package still works in your
-environment.
+CPAN.pm is regularly tested to run under 5.004, 5.005, and assorted
+newer versions. It is getting more and more difficult to get the
+minimal prerequisites working on older perls. It is close to
+impossible to get the whole Bundle::CPAN working there. If you're in
+the position to have only these old versions, be advised that CPAN is
+designed to work fine without the Bundle::CPAN installed.
+
+To get things going, note that GBARR/Scalar-List-Utils-1.18.tar.gz is
+compatible with ancient perls and that File::Temp is listed as a
+prerequisite but CPAN has reasonable workarounds if it is missing.
+
+=head2 CPANPLUS
+
+This module and its competitor, the CPANPLUS module, are both much
+cooler than the other. CPAN.pm is older. CPANPLUS was designed to be
+more modular but it was never tried to make it compatible with CPAN.pm.
 
 =head1 SECURITY ADVICE
 
@@ -9297,6 +12521,15 @@ is inherently dangerous because the newly installed software may
 contain bugs and may alter the way your computer works or even make it
 unusable. Please consider backing up your data before every upgrade.
 
+=head1 BUGS
+
+Please report bugs via http://rt.cpan.org/
+
+Before submitting a bug, please make sure that the traditional method
+of building a Perl module package from a shell by following the
+installation instructions of that package still works in your
+environment.
+
 =head1 AUTHOR
 
 Andreas Koenig C<< <andk@cpan.org> >>
@@ -9311,10 +12544,12 @@ See L<http://www.perl.com/perl/misc/Artistic.html>
 =head1 TRANSLATIONS
 
 Kawai,Takanori provides a Japanese translation of this manpage at
-http://member.nifty.ne.jp/hippo2000/perltips/CPAN.htm
+http://homepage3.nifty.com/hippo2000/perltips/CPAN.htm
 
 =head1 SEE ALSO
 
 cpan(1), CPAN::Nox(3pm), CPAN::Version(3pm)
 
 =cut
+
+