From: Markus Heidelberg <markus.heidelberg@web.de>
Date: Tue, 3 Nov 2009 23:21:41 +0000 (+0100)
Subject: gitk: Fix "git gui blame" invocation when called from top-level directory
X-Git-Url: http://privyetmir.co.uk/gitweb.cgi?a=commitdiff_plain;h=a4390ace1a871d786b33456d6e80728bd2ab3b61;p=gitk

gitk: Fix "git gui blame" invocation when called from top-level directory

When run in the top-level directory of a git repository, "git
rev-parse --git-dir" doesn't return an absolute path, but merely
".git", so the selected file for "git gui blame" has a relative path.
The function make_relative then tries to make the already relative
path relative, which results in a path like "../../../../Makefile"
with as many ".." as there are elements of [pwd].

This regression was introduced by commit 9712b81 (gitk: Fix bugs in
blaming code, 2008-12-06), which fixed "git gui blame" when called from
subdirs.

This also fixes it for bare repositories.

Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/gitk b/gitk
index 5f06545..d5f0a88 100755
--- a/gitk
+++ b/gitk
@@ -3378,6 +3378,9 @@ proc index_sha1 {fname} {
 
 # Turn an absolute path into one relative to the current directory
 proc make_relative {f} {
+    if {[file pathtype $f] eq "relative"} {
+	return $f
+    }
     set elts [file split $f]
     set here [file split [pwd]]
     set ei 0