Contributing to Bazaar ====================== Talk to us ---------- If you want to fix or improve something in Bazaar, we want to help you. You can ask at any time for help, on the list, on irc, or through a merge proposal on Launchpad. In particular, the rostered `Patch Pilot `_ is an experienced developer who will help you get your changes in, through code review, advice, debugging, writing tests, or whatever it takes. * `Bazaar mailing list `_ * IRC in channel ``#bzr`` on ``irc.ubuntu.com`` Starting -------- Before starting on a change it's a good idea to either file a bug, find a relevant existing bug, or send a proposal to the list. If there is a bug you should set it to "In Progress" and if you wish assign it to yourself. You might like to start with a bug tagged `easy `_. Making a branch --------------- First, get a local copy of Bazaar:: $ cd $HOME $ bzr init-repo bzr $ cd bzr $ bzr branch lp:bzr bzr.dev Now make your own branch; we recommend you include the bug number and also a brief description:: $ bzr branch bzr.dev 123456-status-speed and go ahead and commit in there. Normally you should fix only one bug or closely-related cluster of bugs per branch, to make reviews and merges flow more smoothly. For bugs that exist in older supported branches of bzr like 2.0 or 2.1, you might want to fix the bug there so it can go into a bugfix release, ie :: $ bzr branch lp:bzr/2.1 bzr.2.1 $ bzr branch bzr.2.1 123458-2.1-status You probably want this configuration in ``~/.bazaar/locations.conf``:: [/home/USER/bzr] push_location = lp:~LAUNCHPAD_USER/bzr/ push_location:policy = appendpath public_branch = http://bazaar.launchpad.net/~LAUNCHPAD_USER/bzr/ public_branch:policy = appendpath with your local and Launchpad usernames inserted. Publishing your changes ----------------------- After you've locally committed your changes, the configuration above should be enough that you can push them to Launchpad with a simple :: $ bzr push Writing tests ------------- We value test coverage and generally all changes should have or update a test. There is a powerful test framework but it can be hard to find the right place to put your test. Don't hesitate to ask, or to propose a merge that does not yet have tests. Normally for command-line code you should look in ``bzrlib.tests.blackbox`` and for library code in ``bzrlib.tests``. For functions on an interface for which there are multiple implementations, like `Transport`, look in ``bzrlib.tests.per_transport``. It's a good idea to search the tests for something related to the thing you're changing and you may find a test you can modify or adapt. To run the tests:: $ ./bzr selftest Normally the tests will skip if some library dependencies are not present. On Ubuntu, you can install them with this command (you must have source repositories enabled in Software Sources):: $ sudo apt-get build-dep bzr To build the binary extensions:: $ make For more information: `Testing Guide `_. Proposing a merge ----------------- Then propose a merge into bzr; for bzr 2.2 and later you can use the ``bzr lp-propose-merge`` command. In the comment for your merge proposal please explain what you're trying to do and why. For `example `_: As discussed on the mailing list, this patch adds a What's New document summarising the changes since 2.0. If you make additional changes to your branch you don't need to resubmit; they'll automatically show up in the merge proposal. * `Launchpad Code Review Help `_. .. vim: ft=rst tw=74 ai