4 # Compare the current Perl source tree against the version at the most
5 # recent tag, for modules that have identical version numbers but
6 # different contents. Skips cpan/.
8 # Original by slaven@rezic.de, modified by jhi and matt.w.johnson@gmail.com
10 # Adapted from Porting/cmpVERSION.pl by Abigail
14 chdir '..' unless -d 't';
15 unshift @INC, 'lib', 'Porting';
21 use ExtUtils::MakeMaker;
24 use File::Spec::Functions qw(rel2abs abs2rel catfile catdir curdir);
29 print "1..0 # SKIP: not being run from a git checkout\n";
34 # Thanks to David Golden for this suggestion.
36 my $tag_to_compare = `git describe --abbrev=0`;
37 chomp $tag_to_compare;
40 my $null = $^O eq 'MSWin32' ? 'nul' : '/dev/null';
42 my $tag_exists = `git --no-pager tag -l $tag_to_compare 2>$null`;
46 if ($tag_exists ne $tag_to_compare) {
47 print "1..0 # SKIP: '$tag_to_compare' is not a known Git tag\n";
53 for my $m (grep $Maintainers::Modules {$_} {CPAN}, keys %Maintainers::Modules) {
54 $dual_files{$_} = 1 for Maintainers::get_module_files ($m);
58 # Files to skip from the check for one reason or another,
59 # usually because they pull in their version from some other file.
63 'lib/Config.pm', # no version number but contents will vary
64 'lib/Exporter/Heavy.pm',
68 # Files to skip just for particular version(s),
69 # usually due to some # mix-up
72 # 'some/sample/file.pm' => [ '1.23', '1.24' ],
73 'dist/threads/lib/threads.pm' => [ '1.83' ],
76 my $skip_dirs = qr{^(?:t/lib|cpan)};
78 my @all_diffs = `git --no-pager diff --name-only $tag_to_compare`;
81 my @tmp_diffs = grep {
83 $this_dir = $1 if m/^(.*)\//;
85 (!defined($this_dir) || ($this_dir !~ $skip_dirs)) &&
88 my @module_diffs = grep {!exists $dual_files {$_}} @tmp_diffs;
89 push @module_diffs => grep { exists $dual_files {$_}} @tmp_diffs;
91 unless (@module_diffs) {
93 print "ok 1 - No difference found\n";
97 my (@output_files, @output_diffs);
99 printf "1..%d\n" => scalar @module_diffs;
103 foreach my $pm_file (@module_diffs) {
105 (my $xs_file = $pm_file) =~ s/\.pm$/.xs/;
106 my $pm_eq = compare_git_file($pm_file, $tag_to_compare);
107 next unless defined $pm_eq;
110 $xs_eq = compare_git_file($xs_file, $tag_to_compare);
111 next unless defined $xs_eq;
113 next if ($pm_eq && $xs_eq);
114 my $pm_version = eval {MM->parse_version($pm_file)};
115 my $orig_pm_content = get_file_from_git($pm_file, $tag_to_compare);
116 my $orig_pm_version = eval {MM->parse_version(\$orig_pm_content)};
117 next if ( ! defined $pm_version || ! defined $orig_pm_version );
118 next if ( $pm_version eq 'undef' || $orig_pm_version eq 'undef' ); # sigh
119 next if $pm_version ne $orig_pm_version;
120 next if exists $skip_versions{$pm_file}
121 and grep $pm_version eq $_, @{$skip_versions{$pm_file}};
122 push @diff => $pm_file unless $pm_eq;
123 push @diff => $xs_file unless $xs_eq;
127 foreach my $diff (@diff) {
128 print "# $_" for `git --no-pager diff $tag_to_compare '$diff'`;
130 printf "not ok %d - %s\n" => ++ $count, $pm_file;
133 printf "ok %d - %s\n" => ++ $count, $pm_file;
139 sub compare_git_file {
140 my ($file, $tag) = @_;
141 open(my $orig_fh, "-|", "git --no-pager show $tag:$file 2>$null");
142 return undef if eof($orig_fh);
143 my $is_eq = compare($file, $orig_fh) == 0;
148 sub get_file_from_git {
149 my ($file, $tag) = @_;
151 my $file_content = `git --no-pager show $tag:$file 2>$null`;
152 return $file_content;