2 # Generates info for Module::CoreList from this perl tree
3 # run this from the root of a perl tree
7 # With an optional arg specifying the root of a CPAN mirror, outputs the
8 # %upstream and %bug_tracker hashes too.
13 no warnings 'experimental::autoderef';
15 use ExtUtils::MM_Unix;
18 use Maintainers qw(%Modules files_to_modules);
20 use Parse::CPAN::Meta;
21 use IPC::Cmd 'can_run';
23 use IO::Uncompress::Gunzip;
25 my $corelist_file = 'dist/Module-CoreList/lib/Module/CoreList.pm';
26 my $utils_file = 'dist/Module-CoreList/lib/Module/CoreList/Utils.pm';
27 my $pod_file = 'dist/Module-CoreList/lib/Module/CoreList.pod';
33 die "usage: $0 [ cpan-mirror/ ] [ 5.x.y] \n" unless @ARGV <= 2;
35 my $raw_version = shift || $];
36 my $perl_version = version->parse("$raw_version");
37 my $perl_vnum = $perl_version->numify;
38 my $perl_vstring = $perl_version->normal; # how do we get version.pm to not give us leading v?
39 $perl_vstring =~ s/^v//;
41 if ( !-f 'MANIFEST' ) {
42 die "Must be run from the root of a clean perl tree\n";
45 open( my $corelist_fh, '<', $corelist_file );
46 my $corelist = join( '', <$corelist_fh> );
50 $corelist =~ /^%released \s* = \s* \(
52 $perl_vnum \s* => \s* .*?
56 warn "Adding $perl_vnum to the list of released perl versions. Please consider adding a release date.\n";
57 $corelist =~ s/^(%released \s* = \s* .*?) ( \) )
58 /$1 $perl_vnum => '????-??-??',\n $2/ismx;
62 my $modlistfile = File::Spec->catfile( $cpan, 'modules', '02packages.details.txt' );
66 if ( -e $modlistfile ) {
67 warn "Reading the module list from $modlistfile";
68 open $fh, '<', $modlistfile;
69 } elsif ( -e $modlistfile . ".gz" ) {
70 my $zcat = can_run('gzcat') || can_run('zcat') or die "Can't find gzcat or zcat";
71 warn "Reading the module list from $modlistfile.gz";
72 open $fh, '-|', "$zcat $modlistfile.gz";
74 warn "About to fetch 02packages from ftp.funet.fi. This may take a few minutes\n";
75 my $gzipped_content = fetch_url('http://ftp.funet.fi/pub/CPAN/modules/02packages.details.txt.gz');
76 unless ($gzipped_content) {
77 die "Unable to read 02packages.details.txt from either your CPAN mirror or ftp.funet.fi";
79 IO::Uncompress::Gunzip::gunzip(\$gzipped_content, \$content, Transparent => 0)
80 or die "Can't gunzip content: $IO::Uncompress::Gunzip::GunzipError";
83 if ( $fh and !$content ) {
85 $content = join( '', <$fh> );
88 die "Incompatible modlist format"
89 unless $content =~ /^Columns: +package name, version, path/m;
91 # Converting the file to a hash is about 5 times faster than a regexp flat
93 for ( split( qr/\n/, $content ) ) {
94 next unless /^([A-Za-z_:0-9]+) +[-0-9.undefHASHVERSIONvsetwhenloadingbogus]+ +(\S+)/;
101 /(\.pm|_pm\.PL)$/ or return;
102 /PPPort\.pm$/ and return;
103 my $module = $File::Find::name;
104 $module =~ /\b(demo|t|private)\b/ and return; # demo or test modules
105 my $version = MM->parse_version($_);
106 defined $version or $version = 'undef';
107 $version =~ /\d/ and $version = "'$version'";
109 # some heuristics to figure out the module name from the file name
110 $module =~ s{^(lib|cpan|dist|(?:symbian/)?ext|os2/OS2)/}{}
113 $module =~ s{\b(\w+)/\1\b}{$1},
114 $module =~ s{^B/O}{O},
115 $module =~ s{^Devel-PPPort}{Devel},
116 $module =~ s{^libnet/}{},
117 $module =~ s{^PathTools/}{},
118 $module =~ s{REXX/DLL}{DLL},
119 $module =~ s{^Encode/encoding}{encoding},
120 $module =~ s{^IPC-SysV/}{IPC/},
121 $module =~ s{^MIME-Base64/QuotedPrint}{MIME/QuotedPrint},
122 $module =~ s{^(?:DynaLoader|Errno|Opcode|XSLoader)/}{},
123 $module =~ s{^Sys-Syslog/win32}{Sys-Syslog},
124 $module =~ s{^Time-Piece/Seconds}{Time/Seconds},
126 $module =~ s{^lib/}{}g;
127 $module =~ s{/}{::}g;
128 $module =~ s{-}{::}g;
129 $module =~ s{^.*::lib::}{}; # turns Foo/lib/Foo.pm into Foo.pm
130 $module =~ s/(\.pm|_pm\.PL)$//;
131 $lines{$module} = $version;
132 $module_to_file{$module} = $File::Find::name;
142 -e 'configpm' and $lines{Config} = "$]";
144 if ( open my $ucdv, "<", "lib/unicore/version" ) {
145 chomp( my $ucd = <$ucdv> );
146 $lines{Unicode} = "'$ucd'";
150 my $delta_data = make_corelist_delta(
153 \%Module::CoreList::version
156 my $versions_in_release = " " . $perl_vnum . " => {\n";
157 $versions_in_release .= " delta_from => $delta_data->{delta_from},\n";
158 $versions_in_release .= " changed => {\n";
159 foreach my $key (sort keys $delta_data->{changed}) {
160 $versions_in_release .= sprintf " %-24s=> %s,\n", "'$key'",
161 defined $delta_data->{changed}{$key} ? "'"
162 . $delta_data->{changed}{$key} . "'" : "undef";
164 $versions_in_release .= " },\n";
165 $versions_in_release .= " removed => {\n";
166 for my $key (sort keys($delta_data->{removed} || {})) {
167 $versions_in_release .= sprintf " %-24s=> %s,\n", "'$key'", 1;
169 $versions_in_release .= " }\n";
170 $versions_in_release .= " },\n";
172 $corelist =~ s/^(%delta\s*=\s*.*?)^\s*$perl_vnum\s*=>\s*{.*?},\s*(^\);)$/$1$2/ism;
173 $corelist =~ s/^(%delta\s*=\s*.*?)(^\);)$/$1$versions_in_release$2/ism;
175 exit unless %modlist;
177 # We have to go through this two stage lookup, given how Maintainers.pl keys its
178 # data by "Module", which is really a dist.
179 my $file_to_M = files_to_modules( values %module_to_file );
182 open my $fh, "<:utf8", "$_[0]"
183 or die "can't open $_[0] for reading: $!";
184 return do { local $/; <$fh> };
187 sub parse_cpan_meta($) {
188 return Parse::CPAN::Meta->${
189 $_[0] =~ /\A\x7b/ ? \"load_json_string" : \"load_yaml_string"
193 my %module_to_upstream;
195 my %dist_to_meta_YAML;
196 my %module_to_deprecated;
197 while ( my ( $module, $file ) = each %module_to_file ) {
198 my $M = $file_to_M->{$file};
200 next if $Modules{$M}{MAINTAINER} && $Modules{$M}{MAINTAINER} eq 'P5P';
201 $module_to_upstream{$module} = $Modules{$M}{UPSTREAM};
202 $module_to_deprecated{$module} = 1 if $Modules{$M}{DEPRECATED};
204 if defined $module_to_upstream{$module}
205 && $module_to_upstream{$module} eq 'blead';
206 my $dist = $modlist{$module};
208 warn "Can't find a distribution for $module\n";
211 $module_to_dist{$module} = $dist;
213 next if exists $dist_to_meta_YAML{$dist};
215 $dist_to_meta_YAML{$dist} = undef;
217 # Like it or lump it, this has to be Unix format.
218 my $meta_YAML_path = "authors/id/$dist";
219 $meta_YAML_path =~ s/(?:tar\.gz|tar\.bz2|zip|tgz)$/meta/
220 or die "ERROR: bad meta YAML path: '$meta_YAML_path'";
221 my $meta_YAML_url = 'http://ftp.funet.fi/pub/CPAN/' . $meta_YAML_path;
223 if ( -e "$cpan/$meta_YAML_path" ) {
224 $dist_to_meta_YAML{$dist} = parse_cpan_meta(slurp_utf8( $cpan . "/" . $meta_YAML_path ));
225 } elsif ( my $content = fetch_url($meta_YAML_url) ) {
227 warn "Failed to fetch $meta_YAML_url\n";
230 eval { $dist_to_meta_YAML{$dist} = parse_cpan_meta($content); };
231 if ( my $err = $@ ) {
232 warn "$meta_YAML_path: ".$err;
236 warn "$meta_YAML_path does not exist for $module\n";
238 # I tried code to open the tarballs with Archive::Tar to find and
239 # extract META.yml, but only Text-Tabs+Wrap-2006.1117.tar.gz had one,
240 # so it's not worth including.
245 my $upstream_stanza = "%upstream = (\n";
246 foreach my $module ( sort keys %module_to_upstream ) {
247 my $upstream = defined $module_to_upstream{$module} ? "'$module_to_upstream{$module}'" : 'undef';
248 $upstream_stanza .= sprintf " %-24s=> %s,\n", "'$module'", $upstream;
250 $upstream_stanza .= ");";
252 $corelist =~ s/^%upstream .*? ;$/$upstream_stanza/ismx;
254 # Deprecation generation
256 my $delta_data = make_corelist_delta(
258 \%module_to_deprecated,
259 do { no warnings 'once'; \%Module::CoreList::deprecated },
262 my $deprecated_stanza = " " . $perl_vnum . " => {\n";
263 $deprecated_stanza .= " delta_from => $delta_data->{delta_from},\n";
264 $deprecated_stanza .= " changed => {\n";
265 foreach my $key (sort keys $delta_data->{changed}) {
266 $deprecated_stanza .= sprintf " %-24s=> %s,\n", "'$key'",
267 defined $delta_data->{changed}{$key} ? "'"
268 . $delta_data->{changed}{$key} . "'" : "undef";
270 $deprecated_stanza .= " },\n";
271 $deprecated_stanza .= " removed => {\n";
272 for my $key (sort keys($delta_data->{removed} || {})) {
273 $deprecated_stanza .= sprintf " %-24s=> %s,\n", "'$key'", 1;
275 $deprecated_stanza .= " }\n";
276 $deprecated_stanza .= " },\n";
278 $corelist =~ s/^(%deprecated\s*=\s*.*?)^\s*$perl_vnum\s*=>\s*{.*?},\s*(^\);)$/$1$2/ism;
279 $corelist =~ s/^(%deprecated\s*=\s*.*?)(^\);)$/$1$deprecated_stanza$2/xism;
282 my $tracker = "%bug_tracker = (\n";
283 foreach my $module ( sort keys %module_to_upstream ) {
284 my $upstream = defined $module_to_upstream{$module};
286 if defined $upstream and $upstream eq 'blead';
290 my $dist = $module_to_dist{$module};
291 $bug_tracker = $dist_to_meta_YAML{$dist}->{resources}{bugtracker}
293 $bug_tracker = $bug_tracker->{web} if ref($bug_tracker) eq "HASH";
295 $bug_tracker = defined $bug_tracker ? quote($bug_tracker) : 'undef';
296 next if $bug_tracker eq "'http://rt.perl.org/perlbug/'";
297 $tracker .= sprintf " %-24s=> %s,\n", "'$module'", $bug_tracker;
301 $corelist =~ s/^%bug_tracker .*? ;/$tracker/eismx;
303 write_corelist($corelist,$corelist_file);
305 open( my $pod_fh, '<', $pod_file );
306 my $pod = join( '', <$pod_fh> );
308 unless ( $pod =~ /and $perl_vstring releases of perl/ ) {
309 warn "Adding $perl_vstring to the list of perl versions covered by Module::CoreList\n";
310 $pod =~ s/(currently\s+covers\s+(?:.*?))\s*and\s+(.*?)\s+releases\s+of\s+perl/$1, $2 and $perl_vstring releases of perl/ism;
313 write_corelist($pod,$pod_file);
315 open( my $utils_fh, '<', $utils_file );
316 my $utils = join( '', <$utils_fh> );
319 my %utils = map { ( $_ => 1 ) } parse_utils_lst();
321 my $delta_utils = make_coreutils_delta($perl_vnum, \%utils);
323 my $utilities_in_release = " " . $perl_vnum . " => {\n";
324 $utilities_in_release .= " delta_from => $delta_utils->{delta_from},\n";
325 $utilities_in_release .= " changed => {\n";
326 foreach my $key (sort keys $delta_utils->{changed}) {
327 $utilities_in_release .= sprintf " %-24s=> %s,\n", "'$key'",
328 defined $delta_utils->{changed}{$key} ? "'"
329 . $delta_utils->{changed}{$key} . "'" : "undef";
331 $utilities_in_release .= " },\n";
332 $utilities_in_release .= " removed => {\n";
333 for my $key (sort keys($delta_utils->{removed} || {})) {
334 $utilities_in_release .= sprintf " %-24s=> %s,\n", "'$key'", 1;
336 $utilities_in_release .= " }\n";
337 $utilities_in_release .= " },\n";
339 $utils =~ s/^(my %delta\s*=\s*.*?)^\s*$perl_vnum\s*=>\s*{.*?},\s*(^\);)$/$1$2/ism;
340 $utils =~ s/^(my %delta\s*=\s*.*?)(^\);)$/$1$utilities_in_release$2/ism;
342 write_corelist($utils,$utils_file);
344 warn "All done. Please check over the following files carefully before committing.\nThanks!\n";
345 warn "$corelist_file\n$pod_file\n$utils_file\n";
349 my $filename = shift;
350 open (my $clfh, ">", $filename);
352 print $clfh $content;
358 my $http = HTTP::Tiny->new;
359 my $response = $http->get($url);
360 if ($response->{success}) {
361 return $response->{content};
363 warn "Error fetching $url: $response->{status} $response->{reason}\n";
368 sub make_corelist_delta {
369 my($version, $lines, $existing) = @_;
370 # Trust core perl, if someone does use a weird version number the worst that
371 # can happen is an extra delta entry for a module.
372 my %versions = map { $_ => eval $lines->{$_} } keys %$lines;
374 # Ensure we have the corelist data loaded from this perl checkout, not the system one.
375 require $corelist_file;
378 # Search for the release with the least amount of changes (this avoids having
379 # to ask for where this perl was branched from).
380 for my $previous (reverse sort keys %$existing) {
381 # Shouldn't happen, but ensure we don't load weird data...
382 next if $previous > $version || $previous == $version && $previous eq $version;
384 my $delta = $deltas{$previous} = {};
385 ($delta->{changed}, $delta->{removed}) = calculate_delta(
386 $existing->{$previous}, \%versions);
389 my $smallest = (sort {
390 ((keys($deltas{$a}->{changed}) + keys($deltas{$a}->{removed})) <=>
391 (keys($deltas{$b}->{changed}) + keys($deltas{$b}->{removed}))) ||
396 delta_from => $smallest,
397 changed => $deltas{$smallest}{changed},
398 removed => $deltas{$smallest}{removed},
402 sub make_coreutils_delta {
403 my($version, $lines) = @_;
404 # Trust core perl, if someone does use a weird version number the worst that
405 # can happen is an extra delta entry for a module.
406 my %utilities = map { $_ => eval $lines->{$_} } keys %$lines;
408 # Ensure we have the corelist data loaded from this perl checkout, not the system one.
412 # Search for the release with the least amount of changes (this avoids having
413 # to ask for where this perl was branched from).
414 for my $previous (reverse sort keys %Module::CoreList::Utils::utilities) {
415 # Shouldn't happen, but ensure we don't load weird data...
416 next if $previous > $version || $previous == $version && $previous eq $version;
418 my $delta = $deltas{$previous} = {};
419 ($delta->{changed}, $delta->{removed}) = calculate_delta(
420 $Module::CoreList::Utils::utilities{$previous}, \%utilities);
423 my $smallest = (sort {
424 ((keys($deltas{$a}->{changed}) + keys($deltas{$a}->{removed})) <=>
425 (keys($deltas{$b}->{changed}) + keys($deltas{$b}->{removed}))) ||
430 delta_from => $smallest,
431 changed => $deltas{$smallest}{changed},
432 removed => $deltas{$smallest}{removed},
436 # Calculate (changed, removed) modules between two versions.
437 sub calculate_delta {
439 my(%changed, %removed);
441 for my $package(keys $from) {
442 if(not exists $to->{$package}) {
443 $removed{$package} = 1;
447 for my $package(keys $to) {
448 if(!exists $from->{$package}
449 || (defined $from->{$package} && !defined $to->{$package})
450 || (!defined $from->{$package} && defined $to->{$package})
451 || (defined $from->{$package} && defined $to->{$package}
452 && $from->{$package} ne $to->{$package})) {
453 $changed{$package} = $to->{$package};
457 return \%changed, \%removed;
462 # There's gotta be something already doing this properly that we could just
463 # reuse, but I can't quite thing of where to look for it, so I'm gonna do
464 # the simplest possible thing that'll allow me to release 5.17.7. --rafl
469 sub parse_utils_lst {
470 require File::Spec::Unix;
472 open my $fh, '<', 'utils.lst' or die "$!\n";
475 my ($file,$extra) = split m!#!;
477 push @scripts, $file;
478 $extra =~ s!\s+!!g if $extra;
479 if ( $extra and my ($link) = $extra =~ m!^link=(.+?)$! ) {
480 push @scripts, $link;
483 return map { +( File::Spec::Unix->splitpath( $_ ) )[-1] } @scripts;