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::aggref';
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)/}{}
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{^Encode/encoding}{encoding},
118 $module =~ s{^IPC-SysV/}{IPC/},
119 $module =~ s{^MIME-Base64/QuotedPrint}{MIME/QuotedPrint},
120 $module =~ s{^(?:DynaLoader|Errno|Opcode|XSLoader)/}{},
121 $module =~ s{^Sys-Syslog/win32}{Sys-Syslog},
122 $module =~ s{^Time-Piece/Seconds}{Time/Seconds},
124 $module =~ s{^lib/}{}g;
125 $module =~ s{/}{::}g;
126 $module =~ s{-}{::}g;
127 $module =~ s{^.*::lib::}{}; # turns Foo/lib/Foo.pm into Foo.pm
128 $module =~ s/(\.pm|_pm\.PL)$//;
129 $lines{$module} = $version;
130 $module_to_file{$module} = $File::Find::name;
139 -e 'configpm' and $lines{Config} = "$]";
141 if ( open my $ucdv, "<", "lib/unicore/version" ) {
142 chomp( my $ucd = <$ucdv> );
143 $lines{Unicode} = "'$ucd'";
147 my $delta_data = make_corelist_delta(
150 \%Module::CoreList::version
153 my $versions_in_release = " " . $perl_vnum . " => {\n";
154 $versions_in_release .= " delta_from => $delta_data->{delta_from},\n";
155 $versions_in_release .= " changed => {\n";
156 foreach my $key (sort keys $delta_data->{changed}) {
157 $versions_in_release .= sprintf " %-24s=> %s,\n", "'$key'",
158 defined $delta_data->{changed}{$key} ? "'"
159 . $delta_data->{changed}{$key} . "'" : "undef";
161 $versions_in_release .= " },\n";
162 $versions_in_release .= " removed => {\n";
163 for my $key (sort keys($delta_data->{removed} || {})) {
164 $versions_in_release .= sprintf " %-24s=> %s,\n", "'$key'", 1;
166 $versions_in_release .= " }\n";
167 $versions_in_release .= " },\n";
169 $corelist =~ s/^(%delta\s*=\s*.*?)^\s*$perl_vnum\s*=>\s*{.*?},\s*(^\);)$/$1$2/ism;
170 $corelist =~ s/^(%delta\s*=\s*.*?)(^\);)$/$1$versions_in_release$2/ism;
172 exit unless %modlist;
174 # We have to go through this two stage lookup, given how Maintainers.pl keys its
175 # data by "Module", which is really a dist.
176 my $file_to_M = files_to_modules( values %module_to_file );
179 open my $fh, "<:utf8", "$_[0]"
180 or die "can't open $_[0] for reading: $!";
181 return do { local $/; <$fh> };
184 sub parse_cpan_meta($) {
185 return Parse::CPAN::Meta->${
186 $_[0] =~ /\A\x7b/ ? \"load_json_string" : \"load_yaml_string"
190 my %module_to_upstream;
192 my %dist_to_meta_YAML;
193 my %module_to_deprecated;
194 while ( my ( $module, $file ) = each %module_to_file ) {
195 my $M = $file_to_M->{$file};
197 next if $Modules{$M}{MAINTAINER} && $Modules{$M}{MAINTAINER} eq 'P5P';
198 $module_to_upstream{$module} = $Modules{$M}{UPSTREAM};
199 $module_to_deprecated{$module} = 1 if $Modules{$M}{DEPRECATED};
201 if defined $module_to_upstream{$module}
202 && $module_to_upstream{$module} eq 'blead';
203 my $dist = $modlist{$module};
205 warn "Can't find a distribution for $module\n";
208 $module_to_dist{$module} = $dist;
210 next if exists $dist_to_meta_YAML{$dist};
212 $dist_to_meta_YAML{$dist} = undef;
214 # Like it or lump it, this has to be Unix format.
215 my $meta_YAML_path = "authors/id/$dist";
216 $meta_YAML_path =~ s/(?:tar\.gz|tar\.bz2|zip|tgz)$/meta/
217 or die "ERROR: bad meta YAML path: '$meta_YAML_path'";
218 my $meta_YAML_url = 'http://ftp.funet.fi/pub/CPAN/' . $meta_YAML_path;
220 if ( -e "$cpan/$meta_YAML_path" ) {
221 $dist_to_meta_YAML{$dist} = parse_cpan_meta(slurp_utf8( $cpan . "/" . $meta_YAML_path ));
222 } elsif ( my $content = fetch_url($meta_YAML_url) ) {
224 warn "Failed to fetch $meta_YAML_url\n";
227 eval { $dist_to_meta_YAML{$dist} = parse_cpan_meta($content); };
228 if ( my $err = $@ ) {
229 warn "$meta_YAML_path: ".$err;
233 warn "$meta_YAML_path does not exist for $module\n";
235 # I tried code to open the tarballs with Archive::Tar to find and
236 # extract META.yml, but only Text-Tabs+Wrap-2006.1117.tar.gz had one,
237 # so it's not worth including.
242 my $upstream_stanza = "%upstream = (\n";
243 foreach my $module ( sort keys %module_to_upstream ) {
244 my $upstream = defined $module_to_upstream{$module} ? "'$module_to_upstream{$module}'" : 'undef';
245 $upstream_stanza .= sprintf " %-24s=> %s,\n", "'$module'", $upstream;
247 $upstream_stanza .= ");";
249 $corelist =~ s/^%upstream .*? ;$/$upstream_stanza/ismx;
251 # Deprecation generation
253 my $delta_data = make_corelist_delta(
255 \%module_to_deprecated,
256 do { no warnings 'once'; \%Module::CoreList::deprecated },
259 my $deprecated_stanza = " " . $perl_vnum . " => {\n";
260 $deprecated_stanza .= " delta_from => $delta_data->{delta_from},\n";
261 $deprecated_stanza .= " changed => {\n";
262 foreach my $key (sort keys $delta_data->{changed}) {
263 $deprecated_stanza .= sprintf " %-24s=> %s,\n", "'$key'",
264 defined $delta_data->{changed}{$key} ? "'"
265 . $delta_data->{changed}{$key} . "'" : "undef";
267 $deprecated_stanza .= " },\n";
268 $deprecated_stanza .= " removed => {\n";
269 for my $key (sort keys($delta_data->{removed} || {})) {
270 $deprecated_stanza .= sprintf " %-24s=> %s,\n", "'$key'", 1;
272 $deprecated_stanza .= " }\n";
273 $deprecated_stanza .= " },\n";
275 $corelist =~ s/^(%deprecated\s*=\s*.*?)^\s*$perl_vnum\s*=>\s*{.*?},\s*(^\);)$/$1$2/ism;
276 $corelist =~ s/^(%deprecated\s*=\s*.*?)(^\);)$/$1$deprecated_stanza$2/xism;
279 my $tracker = "%bug_tracker = (\n";
280 foreach my $module ( sort keys %module_to_upstream ) {
281 my $upstream = defined $module_to_upstream{$module};
283 if defined $upstream and $upstream eq 'blead';
287 my $dist = $module_to_dist{$module};
288 $bug_tracker = $dist_to_meta_YAML{$dist}->{resources}{bugtracker}
290 $bug_tracker = $bug_tracker->{web} if ref($bug_tracker) eq "HASH";
292 $bug_tracker = defined $bug_tracker ? quote($bug_tracker) : 'undef';
293 next if $bug_tracker eq "'http://rt.perl.org/perlbug/'";
294 $tracker .= sprintf " %-24s=> %s,\n", "'$module'", $bug_tracker;
298 $corelist =~ s/^%bug_tracker .*? ;/$tracker/eismx;
300 write_corelist($corelist,$corelist_file);
302 open( my $pod_fh, '<', $pod_file );
303 my $pod = join( '', <$pod_fh> );
305 unless ( $pod =~ /and $perl_vstring releases of perl/ ) {
306 warn "Adding $perl_vstring to the list of perl versions covered by Module::CoreList\n";
307 $pod =~ s/(currently\s+covers\s+(?:.*?))\s*and\s+(.*?)\s+releases\s+of\s+perl/$1, $2 and $perl_vstring releases of perl/ism;
310 write_corelist($pod,$pod_file);
312 open( my $utils_fh, '<', $utils_file );
313 my $utils = join( '', <$utils_fh> );
316 my %utils = map { ( $_ => 1 ) } parse_utils_lst();
318 my $delta_utils = make_coreutils_delta($perl_vnum, \%utils);
320 my $utilities_in_release = " " . $perl_vnum . " => {\n";
321 $utilities_in_release .= " delta_from => $delta_utils->{delta_from},\n";
322 $utilities_in_release .= " changed => {\n";
323 foreach my $key (sort keys $delta_utils->{changed}) {
324 $utilities_in_release .= sprintf " %-24s=> %s,\n", "'$key'",
325 defined $delta_utils->{changed}{$key} ? "'"
326 . $delta_utils->{changed}{$key} . "'" : "undef";
328 $utilities_in_release .= " },\n";
329 $utilities_in_release .= " removed => {\n";
330 for my $key (sort keys($delta_utils->{removed} || {})) {
331 $utilities_in_release .= sprintf " %-24s=> %s,\n", "'$key'", 1;
333 $utilities_in_release .= " }\n";
334 $utilities_in_release .= " },\n";
336 $utils =~ s/^(my %delta\s*=\s*.*?)^\s*$perl_vnum\s*=>\s*{.*?},\s*(^\);)$/$1$2/ism;
337 $utils =~ s/^(my %delta\s*=\s*.*?)(^\);)$/$1$utilities_in_release$2/ism;
339 write_corelist($utils,$utils_file);
341 warn "All done. Please check over the following files carefully before committing.\nThanks!\n";
342 warn "$corelist_file\n$pod_file\n$utils_file\n";
346 my $filename = shift;
347 open (my $clfh, ">", $filename);
349 print $clfh $content;
355 my $http = HTTP::Tiny->new;
356 my $response = $http->get($url);
357 if ($response->{success}) {
358 return $response->{content};
360 warn "Error fetching $url: $response->{status} $response->{reason}\n";
365 sub make_corelist_delta {
366 my($version, $lines, $existing) = @_;
367 # Trust core perl, if someone does use a weird version number the worst that
368 # can happen is an extra delta entry for a module.
369 my %versions = map { $_ => eval $lines->{$_} } keys %$lines;
371 # Ensure we have the corelist data loaded from this perl checkout, not the system one.
372 require $corelist_file;
375 # Search for the release with the least amount of changes (this avoids having
376 # to ask for where this perl was branched from).
377 for my $previous (reverse sort keys %$existing) {
378 # Shouldn't happen, but ensure we don't load weird data...
379 next if $previous > $version || $previous == $version && $previous eq $version;
381 my $delta = $deltas{$previous} = {};
382 ($delta->{changed}, $delta->{removed}) = calculate_delta(
383 $existing->{$previous}, \%versions);
386 my $smallest = (sort {
387 ((keys($deltas{$a}->{changed}) + keys($deltas{$a}->{removed})) <=>
388 (keys($deltas{$b}->{changed}) + keys($deltas{$b}->{removed}))) ||
393 delta_from => $smallest,
394 changed => $deltas{$smallest}{changed},
395 removed => $deltas{$smallest}{removed},
399 sub make_coreutils_delta {
400 my($version, $lines) = @_;
401 # Trust core perl, if someone does use a weird version number the worst that
402 # can happen is an extra delta entry for a module.
403 my %utilities = map { $_ => eval $lines->{$_} } keys %$lines;
405 # Ensure we have the corelist data loaded from this perl checkout, not the system one.
409 # Search for the release with the least amount of changes (this avoids having
410 # to ask for where this perl was branched from).
411 for my $previous (reverse sort keys %Module::CoreList::Utils::utilities) {
412 # Shouldn't happen, but ensure we don't load weird data...
413 next if $previous > $version || $previous == $version && $previous eq $version;
415 my $delta = $deltas{$previous} = {};
416 ($delta->{changed}, $delta->{removed}) = calculate_delta(
417 $Module::CoreList::Utils::utilities{$previous}, \%utilities);
420 my $smallest = (sort {
421 ((keys($deltas{$a}->{changed}) + keys($deltas{$a}->{removed})) <=>
422 (keys($deltas{$b}->{changed}) + keys($deltas{$b}->{removed}))) ||
427 delta_from => $smallest,
428 changed => $deltas{$smallest}{changed},
429 removed => $deltas{$smallest}{removed},
433 # Calculate (changed, removed) modules between two versions.
434 sub calculate_delta {
436 my(%changed, %removed);
438 for my $package(keys $from) {
439 if(not exists $to->{$package}) {
440 $removed{$package} = 1;
444 for my $package(keys $to) {
445 if(!exists $from->{$package}
446 || (defined $from->{$package} && !defined $to->{$package})
447 || (!defined $from->{$package} && defined $to->{$package})
448 || (defined $from->{$package} && defined $to->{$package}
449 && $from->{$package} ne $to->{$package})) {
450 $changed{$package} = $to->{$package};
454 return \%changed, \%removed;
459 # There's gotta be something already doing this properly that we could just
460 # reuse, but I can't quite thing of where to look for it, so I'm gonna do
461 # the simplest possible thing that'll allow me to release 5.17.7. --rafl
466 sub parse_utils_lst {
467 require File::Spec::Unix;
469 open my $fh, '<', 'utils.lst' or die "$!\n";
472 my ($file,$extra) = split m!#!;
474 push @scripts, $file;
475 $extra =~ s!\s+!!g if $extra;
476 if ( $extra and my ($link) = $extra =~ m!^link=(.+?)$! ) {
477 push @scripts, $link;
480 return map { +( File::Spec::Unix->splitpath( $_ ) )[-1] } @scripts;