git repo browser shows only comment and revisions but no files and diffs

[therochworks@…]

Trac: 1.2.2

git: 2.16.2 and also 2.7

OS: Ubuntu xenial latest updates

If I want to browse my git repository the trac browser show only a revision and the latest commit message. It doesn't show any content (files). The same issue exists in the changeset view.

I found only the following log entry:

2018-03-11 16:01:55,228 Trac[PyGIT] DEBUG: /usr/bin/git exits with 128, dir: u'/path/to/.git', args: ls-tree ('-z', '-l', 'ba8ca6ac247', '--', ''), stderr: 'fatal: empty string is not a valid pathspec. please use . instead if you meant to match all paths\n'

Why is this a debug message and no error message?

[anonymous]

If I resync a repository the following is logged:

2018-03-11 16:36:21,143 Trac[PyGIT] DEBUG: /usr/bin/git exits with 128, dir: u'/path/to/.git/', args: diff-tree ('-z', '-r'
, '-M', 'f8f900f729b9b88', '384bcc65022e04', '--', ''), stderr: 'fatal: empty string is not a valid pathspec. please use . instead if you meant to match all paths\n'

[Jun Omae]

Duplicate of #12693. The issue has been fixed in Trac 1.2.1, r15541.

The git -z -r -M <sha1> <sha2> ... command is invoked from tags/trac-1.2.2/tracopt/versioncontrol/git/PyGIT.py@:1008-1014#L1001​ but . is used instead of empty string in Trac 1.2.2.

[Ryan J Ollos]

Since reporter claims Trac 1.2.2, it's a possible InstallationIssue.

[anonymous]

OK, it was realy a installation bug. I found an old tracopt directory in /usr/local/lib/python2.7/dist-packages/ and removed it. Now it works correct.

[Ryan J Ollos]

Thank you for letting us know the resolution. It might help future users that encounter the same issue.

[Jun Omae]

Thanks for the feedback. That is just an InstallationIssue.