"GIT backend not available" on OpenSUSE

[Jun Omae]

Git module doesn't work on OpenSUSE. The issue from ​th:#8682 and ​https://bugzilla.novell.com/show_bug.cgi?id=697156.

Trac [/tmp/tracenv]> repository resync ''
17:23:16 Trac[git_fs] ERROR: GitError: Could not retrieve GIT version (tried to execute/parse '/usr/bin/git-receive-pack --version' but got ValueError('need more than 0 values to unpack',))
TracError: GIT backend not available

/usr/bin/git in OpenSUSE is a symbolic link and Trac wrongly follows the link.

linux@linux:/> ls -l /usr/bin/git
lrwxrwxrwx 1 root root 18 Dec 26 16:58 /usr/bin/git -> ../lib/git/git-add

Trac should use Option instead of PathOption, confirmed with OpenSUSE 12.2.

tracopt/versioncontrol/git/git_fs.py

@@ -199 +199 @@
     git_fs_encoding = Option('git', 'git_fs_encoding', 'utf-8',
         """Define charset encoding of paths within git repositories.""")
 
-    git_bin = PathOption('git', 'git_bin', '/usr/bin/git',
+    git_bin = Option('git', 'git_bin', '/usr/bin/git',
         """Path to git executable (relative to the Trac configuration folder,
         so better use an absolute path here).""")