Alexandre Julliard : git-to-cvs: Use git-for-each-ref to list tags in order to support packed refs.

[Alexandre Julliard]

Module: tools
Branch: master
Commit: e045280709c2c8f4ff5cd501721d4d59a4a5cb94
URL:    http://source.winehq.org/git/tools.git/?a=commit;h=e045280709c2c8f4ff5cd5017...

Author: Alexandre Julliard 
Date:   Thu Jun 14 16:20:42 2007 +0200

git-to-cvs: Use git-for-each-ref to list tags in order to support packed refs.

---

git-to-cvs |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/git-to-cvs b/git-to-cvs
index bf587fc..8d8ab43 100755
--- a/git-to-cvs
+++ b/git-to-cvs
@@ -373,14 +373,16 @@ sub apply_commits()
 # build a list of all commits that are pointed to by a tag
 sub read_tags()
 {
-    opendir DIR, "$git_dir/refs/tags";
-    foreach my $tag (grep /^wine/, readdir DIR )
+    open LIST, "-|" or exec "git-for-each-ref", "refs/tags/wine*" or die "cannot run git-for-each-ref";
+    while (<LIST>)
     {
+        next unless /^[0-9a-f]{40} tag\trefs/tags/(.*)$/;
+        my $tag = $1;
         my $commit = `git-rev-parse $tag^{commit}`;
         chomp $commit;
         $tags{$commit} = $tag;
     }
-    close DIR;
+    close LIST;
 }

# use a tmp index file to avoid touching the main one