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 https://github.com/davglass/github-trac.
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 — twice more tests than code;
- it has a much smaller codebase;
- it has better logging;
- 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://github.com/hvr/trac-git-plugin.git#egg=TracGit-dev
Then install trac-github itself:
pip install -e git://github.com/aaugustin/trac-github.git#egg=TracGitHub-dev
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://github.com/<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:
[components]
trac.versioncontrol.web_ui.browser.BrowserModule = disabled
trac.versioncontrol.web_ui.changeset.ChangesetModule = disabled
trac.versioncontrol.web_ui.log.LogModule = disabled
tracext.github.* = enabled
tracopt.versioncontrol.git.* = enabled
[github]
repository = <user>/<project>
[trac]
repository_dir = /home/trac/<project>.git
repository_type = git
In Trac 0.12, use tracext.git.* = enabled
instead of
tracopt.versioncontrol.git.* = enabled
.
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:
http://<trac.example.com>/github
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 to Trac. But you may not wish to trigger notifications for commits on experimental branches until they're merged, for example.
You can configure trac-github to only notify commits on some branches:
[github]
branches = master
You can provide more than one branch name, and you can use shell-style wildcards:
[github]
branches = master stable/*
This option also restricts which branches are shown in the timeline.
Besides, trac-github uses an undocumented feature of GitHub's WebHook to prevent duplicate notifications when you merge branches.
If you have multiple repositories, you must tell Trac how they're called on GitHub:
[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:
http://<trac.example.com>/github/<reponame>
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 .
or:
pip install trac==0.12.4
pip install -e git://github.com/hvr/trac-git-plugin.git#egg=TracGit-dev
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/PyGIT.py
and replace _, _, version = v.strip().split()
with version = v.strip().split()[2]
.
Run the tests with:
./runtests.py
Display Trac's log during the tests with:
./runtests.py --with-trac-log
Run the tests under coverage with:
coverage erase
./runtests.py --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.