From: Thomas Rast <trast@student.ethz.ch>
Date: Tue, 1 Jul 2008 09:47:04 +0000 (+0200)
Subject: Fix 'git show' on signed tag of signed tag of commit
X-Git-Tag: v1.5.6.2~8
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=4f3dcc2;p=git.git

Fix 'git show' on signed tag of signed tag of commit

The cmd_show loop resolves tags by showing them, then pointing the
object to the 'tagged' member.  However, this object is not fully
initialized; it only contains the SHA1.  (This resulted in a segfault
if there were two levels of tags.)  We apply parse_object to get a
full object.

Noticed by Kalle Olavi Niemitalo on IRC.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/builtin-log.c b/builtin-log.c
index 9817d6fbe..9979e37f3 100644
--- a/builtin-log.c
+++ b/builtin-log.c
@@ -360,7 +360,7 @@ int cmd_show(int argc, const char **argv, const char *prefix)
 					t->tag,
 					diff_get_color_opt(&rev.diffopt, DIFF_RESET));
 			ret = show_object(o->sha1, 1, &rev);
-			objects[i].item = (struct object *)t->tagged;
+			objects[i].item = parse_object(t->tagged->sha1);
 			i--;
 			break;
 		}