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Trac - GitHub integration


This Trac plugin performs two functions:

  • update the local git mirror used by Trac after each push to GitHub, and notify the new changesets to Trac;
  • replace Trac's built-in browser by GitHub's (optional).

The notification of new changesets is strictly equivalent to the command described in Trac's setup guide:

trac-admin TRAC_ENV changeset added ...

This feature set is comparable to

However trac-github has the following advantages:

  • it can watch only selected branches in each repository;
  • it supports multiple repositories;
  • it uses GitHub's generic WebHook URLs;
  • it has no external dependencies;
  • it is well documented — more docs than code;
  • it has an extensive test suite — three times more tests than code;
  • it has a much smaller codebase;
  • it makes better use of Trac's APIs.


trac-github requires Trac >= 0.12 and the git plugin.

This plugin is included in Trac >= 1.0 — you only have to enable it in trac.ini. For Trac 0.12 you have to install it:

pip install -e git://

Then install trac-github itself:

pip install -e git://


Warning: the commands below are provided for illustrative purposes. You'll have to adapt them to your setup.

First, you need a mirror of your GitHub repository, writable by the webserver, for Trac's use:

cd /home/trac
git clone --mirror git://<user>/<project>.git
chown -R www-data:www-data <project>.git

Ensure that the user under which your web server runs can update the mirror:

su www-data
git --git-dir=/home/trac/<project>.git remote update --prune

Now edit your trac.ini as follows to configure both the git and the trac-github plugins:

trac.versioncontrol.web_ui.browser.BrowserModule = disabled
trac.versioncontrol.web_ui.changeset.ChangesetModule = disabled
trac.versioncontrol.web_ui.log.LogModule = disabled
tracext.git.* = enabled
tracext.github.* = enabled

repository = <user>/<project>

repository_dir = /home/trac/<project>.git
repository_type = git

Reload the web server and your project should appear in Trac.

Now go to your project's administration page on GitHub. In the service hooks tab, select WebHook URLs. Enter the URL of your Trac installation followed by github, like this:


You may want to restrict access this URL to GitHub's IPs. They're listed just under the form WebHook URLs setup form.


By default, trac-github notifies all the commits in each changeset to Trac. When you're merging a branch, the commits on the branch are notified again. This can result in duplicate ticket updates and notification emails. To avoid this, you can configure trac-github to only notify commits on some branches:

branches = master

You can provide more than one branch name, and you can use shell-style wildcards:

branches = master stable/*

This option also restricts which branches are shown in the timeline.

Multiple repositories

If you have multiple repositories, you must tell Trac how they're called on GitHub:

repository = <user>/<project>               # default repository
<reponame>.repository = <user>/<project>    # for each extra repository
<reponame>.branches = <branches>            # optional

When you configure the WebHook URLs, append the name used by Trac to identify the repository:


Advanced use

trac-github provides two components that you can enable separately.

  • tracext.github.GitHubPostCommitHook is the post-commit hook called by GitHub. It updates the git mirror used by Trac, triggers a cache update and notifies components of the new changesets. Notifications are used by Trac's commit ticket updater and notifications.

  • tracext.github.GitHubBrowser replaces Trac's built-in browser by redirects to the corresponding pages on Github. Since it replaces standard URLs of Trac, if you enable this pluign, you must disable three components in trac.versioncontrol.web_ui, as shown in the configuration file above.


In a virtualenv, install the requirements:

pip install trac
pip install coverage      # if you want to run the tests under coverage
pip install -e .


pip install trac==0.12.4
pip install -e git://

The version of PyGIT bundled with trac-git-plugin doesn't work with the git binary shipped with OS X. To fix it, in the virtualenv, edit src/tracgit/tracext/git/ and replace _, _, version = v.strip().split() with version = v.strip().split()[2].

Run the tests with:


Display Trac's log during the tests with:

./ --with-trac-log

Run the tests under coverage with:

coverage erase
./ --with-coverage
coverage html

If you put a breakpoint in the test suite, you can interact with Trac's web interface at http://localhost:8765/ and with the git repositories through the command line.


This plugin is released under the BSD license.

It was initially written for Django's Trac.