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.
14 use ExtUtils::MM_Unix;
17 use Maintainers qw(%Modules files_to_modules);
19 use Parse::CPAN::Meta;
20 use IPC::Cmd 'can_run';
22 use IO::Uncompress::Gunzip;
24 my $corelist_file = 'dist/Module-CoreList/lib/Module/CoreList.pm';
25 my $pod_file = 'dist/Module-CoreList/lib/Module/CoreList.pod';
31 die "usage: $0 [ cpan-mirror/ ] [ 5.x.y] \n" unless @ARGV <= 2;
33 my $raw_version = shift || $];
34 my $perl_version = version->parse("$raw_version");
35 my $perl_vnum = $perl_version->numify;
36 my $perl_vstring = $perl_version->normal; # how do we get version.pm to not give us leading v?
37 $perl_vstring =~ s/^v//;
39 if ( !-f 'MANIFEST' ) {
40 die "Must be run from the root of a clean perl tree\n";
43 open( my $corelist_fh, '<', $corelist_file );
44 my $corelist = join( '', <$corelist_fh> );
47 my $modlistfile = File::Spec->catfile( $cpan, 'modules', '02packages.details.txt' );
51 if ( -e $modlistfile ) {
52 warn "Reading the module list from $modlistfile";
53 open $fh, '<', $modlistfile;
54 } elsif ( -e $modlistfile . ".gz" ) {
55 my $zcat = can_run('gzcat') || can_run('zcat') or die "Can't find gzcat or zcat";
56 warn "Reading the module list from $modlistfile.gz";
57 open $fh, '-|', "$zcat $modlistfile.gz";
59 warn "About to fetch 02packages from ftp.funet.fi. This may take a few minutes\n";
60 my $gzipped_content = fetch_url('http://ftp.funet.fi/pub/CPAN/modules/02packages.details.txt.gz');
61 unless ($gzipped_content) {
62 die "Unable to read 02packages.details.txt from either your CPAN mirror or ftp.funet.fi";
64 IO::Uncompress::Gunzip::gunzip(\$gzipped_content, \$content, Transparent => 0)
65 or die "Can't gunzip content: $IO::Uncompress::Gunzip::GunzipError";
68 if ( $fh and !$content ) {
70 $content = join( '', <$fh> );
73 die "Incompatible modlist format"
74 unless $content =~ /^Columns: +package name, version, path/m;
76 # Converting the file to a hash is about 5 times faster than a regexp flat
78 for ( split( qr/\n/, $content ) ) {
79 next unless /^([A-Za-z_:0-9]+) +[-0-9.undefHASHVERSIONvsetwhenloadingbogus]+ +(\S+)/;
86 /(\.pm|_pm\.PL)$/ or return;
87 /PPPort\.pm$/ and return;
88 my $module = $File::Find::name;
89 $module =~ /\b(demo|t|private)\b/ and return; # demo or test modules
90 my $version = MM->parse_version($_);
91 defined $version or $version = 'undef';
92 $version =~ /\d/ and $version = "'$version'";
94 # some heuristics to figure out the module name from the file name
95 $module =~ s{^(lib|cpan|dist|(?:symbian/)?ext)/}{}
98 $module =~ s{\b(\w+)/\1\b}{$1},
99 $module =~ s{^B/O}{O},
100 $module =~ s{^Devel-PPPort}{Devel},
101 $module =~ s{^libnet/}{},
102 $module =~ s{^Encode/encoding}{encoding},
103 $module =~ s{^IPC-SysV/}{IPC/},
104 $module =~ s{^MIME-Base64/QuotedPrint}{MIME/QuotedPrint},
105 $module =~ s{^(?:DynaLoader|Errno|Opcode|XSLoader)/}{},
106 $module =~ s{^Sys-Syslog/win32}{Sys-Syslog},
107 $module =~ s{^Time-Piece/Seconds}{Time/Seconds},
109 $module =~ s{^lib/}{}g;
110 $module =~ s{/}{::}g;
111 $module =~ s{-}{::}g;
112 $module =~ s{^.*::lib::}{}; # turns Foo/lib/Foo.pm into Foo.pm
113 $module =~ s/(\.pm|_pm\.PL)$//;
114 $lines{$module} = $version;
115 $module_to_file{$module} = $File::Find::name;
124 -e 'configpm' and $lines{Config} = "$]";
126 if ( open my $ucdv, "<", "lib/unicore/version" ) {
127 chomp( my $ucd = <$ucdv> );
128 $lines{Unicode} = "'$ucd'";
132 my $delta_data = make_corelist_delta(
135 \%Module::CoreList::version
138 my $versions_in_release = " " . $perl_vnum . " => {\n";
139 $versions_in_release .= " delta_from => $delta_data->{delta_from},\n";
140 $versions_in_release .= " changed => {\n";
141 foreach my $key (sort keys $delta_data->{changed}) {
142 $versions_in_release .= sprintf " %-24s=> %s,\n", "'$key'",
143 defined $delta_data->{changed}{$key} ? "'"
144 . $delta_data->{changed}{$key} . "'" : "undef";
146 $versions_in_release .= " },\n";
147 $versions_in_release .= " removed => {\n";
148 for my $key (sort keys($delta_data->{removed} || {})) {
149 $versions_in_release .= sprintf " %-24s=> %s,\n", "'$key'", 1;
151 $versions_in_release .= " }\n";
152 $versions_in_release .= " },\n";
154 $corelist =~ s/^(my %delta\s*=\s*.*?)(^\);)$/$1$versions_in_release$2/ism;
156 exit unless %modlist;
158 # We have to go through this two stage lookup, given how Maintainers.pl keys its
159 # data by "Module", which is really a dist.
160 my $file_to_M = files_to_modules( values %module_to_file );
163 open my $fh, "<:utf8", "$_[0]"
164 or die "can't open $_[0] for reading: $!";
165 return do { local $/; <$fh> };
168 sub parse_cpan_meta($) {
169 return Parse::CPAN::Meta->${
170 $_[0] =~ /\A\x7b/ ? \"load_json_string" : \"load_yaml_string"
174 my %module_to_upstream;
176 my %dist_to_meta_YAML;
177 my %module_to_deprecated;
178 while ( my ( $module, $file ) = each %module_to_file ) {
179 my $M = $file_to_M->{$file};
181 next if $Modules{$M}{MAINTAINER} && $Modules{$M}{MAINTAINER} eq 'p5p';
182 $module_to_upstream{$module} = $Modules{$M}{UPSTREAM};
183 $module_to_deprecated{$module} = 1 if $Modules{$M}{DEPRECATED};
185 if defined $module_to_upstream{$module}
186 && $module_to_upstream{$module} eq 'blead';
187 my $dist = $modlist{$module};
189 warn "Can't find a distribution for $module\n";
192 $module_to_dist{$module} = $dist;
194 next if exists $dist_to_meta_YAML{$dist};
196 $dist_to_meta_YAML{$dist} = undef;
198 # Like it or lump it, this has to be Unix format.
199 my $meta_YAML_path = "authors/id/$dist";
200 $meta_YAML_path =~ s/(?:tar\.gz|tar\.bz2|zip|tgz)$/meta/
201 or die "ERROR: bad meta YAML path: '$meta_YAML_path'";
202 my $meta_YAML_url = 'http://ftp.funet.fi/pub/CPAN/' . $meta_YAML_path;
204 if ( -e "$cpan/$meta_YAML_path" ) {
205 $dist_to_meta_YAML{$dist} = parse_cpan_meta(slurp_utf8( $cpan . "/" . $meta_YAML_path ));
206 } elsif ( my $content = fetch_url($meta_YAML_url) ) {
208 warn "Failed to fetch $meta_YAML_url\n";
211 eval { $dist_to_meta_YAML{$dist} = parse_cpan_meta($content); };
212 if ( my $err = $@ ) {
213 warn "$meta_YAML_path: ".$err;
217 warn "$meta_YAML_path does not exist for $module\n";
219 # I tried code to open the tarballs with Archive::Tar to find and
220 # extract META.yml, but only Text-Tabs+Wrap-2006.1117.tar.gz had one,
221 # so it's not worth including.
226 my $upstream_stanza = "%upstream = (\n";
227 foreach my $module ( sort keys %module_to_upstream ) {
228 my $upstream = defined $module_to_upstream{$module} ? "'$module_to_upstream{$module}'" : 'undef';
229 $upstream_stanza .= sprintf " %-24s=> %s,\n", "'$module'", $upstream;
231 $upstream_stanza .= ");";
233 $corelist =~ s/^%upstream .*? ;$/$upstream_stanza/ismx;
235 # Deprecation generation
237 my $delta_data = make_corelist_delta(
239 \%module_to_deprecated,
240 do { no warnings 'once'; \%Module::CoreList::deprecated },
243 my $deprecated_stanza = " " . $perl_vnum . " => {\n";
244 $deprecated_stanza .= " delta_from => $delta_data->{delta_from},\n";
245 $deprecated_stanza .= " changed => {\n";
246 foreach my $key (sort keys $delta_data->{changed}) {
247 $deprecated_stanza .= sprintf " %-24s=> %s,\n", "'$key'",
248 defined $delta_data->{changed}{$key} ? "'"
249 . $delta_data->{changed}{$key} . "'" : "undef";
251 $deprecated_stanza .= " },\n";
252 $deprecated_stanza .= " removed => {\n";
253 for my $key (sort keys($delta_data->{removed} || {})) {
254 $deprecated_stanza .= sprintf " %-24s=> %s,\n", "'$key'", 1;
256 $deprecated_stanza .= " }\n";
257 $deprecated_stanza .= " },\n";
259 $corelist =~ s/^(%deprecated\s*=\s*.*?)(^\);)$/$1$deprecated_stanza$2/xism;
262 my $tracker = "%bug_tracker = (\n";
263 foreach my $module ( sort keys %module_to_upstream ) {
264 my $upstream = defined $module_to_upstream{$module};
266 if defined $upstream and $upstream eq 'blead';
270 my $dist = $module_to_dist{$module};
271 $bug_tracker = $dist_to_meta_YAML{$dist}->{resources}{bugtracker}
273 $bug_tracker = $bug_tracker->{web} if ref($bug_tracker) eq "HASH";
275 $bug_tracker = defined $bug_tracker ? quote($bug_tracker) : 'undef';
276 next if $bug_tracker eq "'http://rt.perl.org/perlbug/'";
277 $tracker .= sprintf " %-24s=> %s,\n", "'$module'", $bug_tracker;
281 $corelist =~ s/^%bug_tracker .*? ;/$tracker/eismx;
284 $corelist =~ /^%released \s* = \s* \(
286 $perl_vnum \s* => \s* .*?
290 warn "Adding $perl_vnum to the list of released perl versions. Please consider adding a release date.\n";
291 $corelist =~ s/^(%released \s* = \s* .*?) ( \) )
292 /$1 $perl_vnum => '????-??-??',\n $2/ismx;
295 write_corelist($corelist,$corelist_file);
297 open( my $pod_fh, '<', $pod_file );
298 my $pod = join( '', <$pod_fh> );
300 unless ( $pod =~ /and $perl_vstring releases of perl/ ) {
301 warn "Adding $perl_vstring to the list of perl versions covered by Module::CoreList\n";
302 $pod =~ s/(currently\s+covers\s+(?:.*?))\s*and\s+(.*?)\s+releases\s+of\s+perl/$1, $2 and $perl_vstring releases of perl/ism;
305 write_corelist($pod,$pod_file);
307 warn "All done. Please check over $corelist_file and $pod_file carefully before committing. Thanks!\n";
312 my $filename = shift;
313 open (my $clfh, ">", $filename);
315 print $clfh $content;
321 my $http = HTTP::Tiny->new;
322 my $response = $http->get($url);
323 if ($response->{success}) {
324 return $response->{content};
326 warn "Error fetching $url: $response->{status} $response->{reason}\n";
331 sub make_corelist_delta {
332 my($version, $lines, $existing) = @_;
333 # Trust core perl, if someone does use a weird version number the worst that
334 # can happen is an extra delta entry for a module.
335 my %versions = map { $_ => eval $lines->{$_} } keys %$lines;
337 # Ensure we have the corelist data loaded from this perl checkout, not the system one.
338 require $corelist_file;
341 # Search for the release with the least amount of changes (this avoids having
342 # to ask for where this perl was branched from).
343 for my $previous(reverse sort keys %$existing) {
344 # Shouldn't happen, but ensure we don't load weird data...
345 next if $previous > $version || $previous == $version && $previous eq $version;
347 my $delta = $deltas{$previous} = {};
348 ($delta->{changed}, $delta->{removed}) = calculate_delta(
349 $existing->{$previous}, \%versions);
352 my $smallest = (sort {
353 (keys($deltas{$a}->{changed}) + keys($deltas{$a}->{removed})) <=>
354 (keys($deltas{$b}->{changed})+ keys($deltas{$b}->{removed}))
358 delta_from => $smallest,
359 changed => $deltas{$smallest}{changed},
360 removed => $deltas{$smallest}{removed},
364 # Calculate (changed, removed) modules between two versions.
365 sub calculate_delta {
367 my(%changed, %removed);
369 for my $package(keys $from) {
370 if(not exists $to->{$package}) {
371 $removed{$package} = 1;
375 for my $package(keys $to) {
376 if(!exists $from->{$package}
377 || (defined $from->{$package} && !defined $to->{$package})
378 || (!defined $from->{$package} && defined $to->{$package})
379 || (defined $from->{$package} && defined $to->{$package}
380 && $from->{$package} ne $to->{$package})) {
381 $changed{$package} = $to->{$package};
385 return \%changed, \%removed;
390 # There's gotta be something already doing this properly that we could just
391 # reuse, but I can't quite thing of where to look for it, so I'm gonna do
392 # the simplest possible thing that'll allow me to release 5.17.7. --rafl