From 56a322f16113119bcc3770ef9565297ab59c29d2 Mon Sep 17 00:00:00 2001
From: Jakub Narebski <jnareb@gmail.com>
Date: Thu, 24 Aug 2006 19:41:23 +0200
Subject: [PATCH] gitweb: Add git_get_rev_name_tags function

Add git_get_rev_name_tags function, for later use in
git_commitdiff('plain') for X-Git-Tag: header.

This function, contrary to the call to
  git_get_following_references($hash, "tags");
_does_ strip "tags/" and returns bare tag name.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 gitweb/gitweb.perl | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 01452d2c7..7aa683883 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -800,6 +800,22 @@ sub git_get_preceding_references {
 	return @reflist;
 }
 
+sub git_get_rev_name_tags {
+	my $hash = shift || return undef;
+
+	open my $fd, "-|", $GIT, "name-rev", "--tags", $hash
+		or return;
+	my $name_rev = <$fd>;
+	close $fd;
+
+	if ($name_rev =~ m|^$hash tags/(.*)$|) {
+		return $1;
+	} else {
+		# catches also '$hash undefined' output
+		return undef;
+	}
+}
+
 ## ----------------------------------------------------------------------
 ## parse to hash functions
 
-- 
2.30.2