Tried to use trac 0.12 with gitplugin failes cause of a Oops: read_commit called with empty commit_id

[cornbob@…]

hello,

I got a error everytime I try to use the "browse source code" …

Trac detected an internal error:  GitError:  read_commit called with empty commit_id

Any help would be appreciated.

I looked into the egg, started also a modified one, cause the version for 0.12 was buggy for me. It does not do its job, cause it was complaining about the used git version.

2011-01-11 13:05:18,106 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',))

So I return true for the version check for git in my modified version of gitplugin, which brought me to the next error (this one here). I've tried and searched, but I did not know, what is the problem with the committer id

today I tried on my host the trac version 0.11 + gitplugin without any problems. (done in 12min)

some infos:

openSUSE 11.2 (x86_64)
git version 1.6.4.2

cheers, chris

[anonymous]

seems you set git_bin to /usr/bin/git-receive-pack instead of /usr/bin/git

[cornbob@…]

Replying to anonymous:

seems you set git_bin to /usr/bin/git-receive-pack instead of /usr/bin/git

it is set to git_bin = /usr/bin/git

I can post the old trac.ini for debug purposes, pls ask about it

[chris]

Have the same problem but with different call to /usr/lib/git/git-update-ref which is definitely nowhere configured. I have no idea where this is coming from.

I narrowed this down to a call to Storage.git_version which is static function and the parameter for git_bin is handed in wrongly, i.e. the string above. I have not yet figured out who calls it with this parameter and where the acutual value for the parameter originates from. Trying to narrow it down further.

[chris]

OK, for me the solution was to upgrade to a newer git version. I had 1.6.0.2 installed on a quite dated OpenSuse 11.1. After upgrading to the latest 1.7.4.2 all the issues above went away.

The version check inside PyGIT seems not to be very helpful as my old version passed that.

Hope that helps! Maybe someone can take care of the ticket status.

[anonymous]

If you have an empty git repo, you receive the following error:

Oops…
Trac detected an internal error:
GitError: read_commit called with empty commit_id
This is probably a local installation issue.

[Jun Omae]

2011-01-11 13:05:18,106 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',))

A duplicate of #8682.