Make detecting bare Git repositories more robust

Git remote repositories may end on '.git', e.g. myrepo.git. Just checking
for a repository path to end on '.git' causes 'Repository not found' errors
in such a case. To distinguish between bare and normal Git repositories,
check  if there is a '/.git' part at the end of the repository path
(i.e. if GIT_DIR is pointing to '.' (bare) or '.git').

rhodecode/lib/hooks.py

@@ -328,8 +328,8 b' def handle_git_receive(repo_path, revs, '
 
     baseui = make_ui('db')
     # fix if it's not a bare repo
-    if repo_path.endswith('.git'):
-        repo_path = repo_path[:-4]
+    if repo_path.endswith(os.sep + '.git'):
+        repo_path = repo_path[:-5]
 
     repo = Repository.get_by_full_path(repo_path)
     if not repo: