include git commit hash in metadata

diff --git a/helpers/add-git-commit b/helpers/add-git-commit
new file mode 100755 (executable)
index 0000000..0050e1a
--- /dev/null
+++ b/helpers/add-git-commit
@@ -0,0 +1,19 @@
+#!/usr/bin/env perl
+use strict;
+use warnings FATAL => 'all';
+
+use CPAN::Meta;
+use Parse::CPAN::Meta;
+
+my $file = shift || die "need a file";
+my $meta = Parse::CPAN::Meta->load_file($file);
+
+my $commit = `git rev-parse HEAD`;
+chomp $commit;
+$meta->{x_vcs_commit} = $commit;
+
+my $tag = `git describe`;
+chomp $tag;
+$meta->{x_vcs_tag} = $tag;
+
+CPAN::Meta->new($meta)->save($file, { version => ($file =~ /\.yml$/ ? 1 : 2) });

diff --git a/lib/Distar.pm b/lib/Distar.pm
index e283189..be125f3 100644 (file)
--- a/lib/Distar.pm
+++ b/lib/Distar.pm
@@ -190,6 +190,16 @@ END_FRAG
     $out;
   }
 
+  sub metafile_target {
+    my $self = shift;
+    my $metafile_target = $self->SUPER::metafile_target(@_);
+    for (qw(META.yml META.json)) {
+      my $add = "\t\$(NOECHO) \$(ABSPERLRUN) $(HELPERS)/add-git-commit \$(DISTVNAME)/$_\n";
+      $metafile_target =~ s{(.*\b\Q$_\E\b[^\n]*\n)}{$1$add}s;
+    }
+    $metafile_target;
+  }
+
   sub dist_test {
     my $self = shift;