Buildbot Development

Developing on the Buildbot code

Buildbot has all of the right ideas for solving the problem of maintaining a complex codebase like MariaDB at a high level of quality. However, there are some smaller fixes and extensions we need to develop on the Buildbot code.

Here I describe how I set up an environment for hacking on the buildbot code. Readers beware, I am a Perl guy, so this may not reflect how a Python person would choose to do things.

First I installed the virtualenv Python package:

tar zxf virtualenv-1.3.3.tar.gz 
cd virtualenv-1.3.3/
mkdir -p /home/knielsen/python/lib/python/
PYTHONPATH="$HOME/python/lib/python" python setup.py install --home="$HOME/python"
cd ..
PYTHONPATH="$HOME/python/lib/python" ~/python/bin/virtualenv sandbox

Then I cloned the latest BuildBot tree from the Git repository:

git clone git://github.com/djmitche/buildbot.git
cd buildbot/

Install the BuildBot code in the virtualenv sandbox in development mode and run the test suite.

(The virtualenv stuff has a script sandbox/bin/activate that is the recommended way to use things. However, I really dislike keeping that kind of state in the shell, since it means shell commands (for example copy-pasted from history) will behave differently depending on when and where they are run. That is the reason for passing the PYTHONPATH directly on the command line.)

PYTHONPATH="$HOME/python/lib/python" ~/devel/buildbot/sandbox/bin/python setup.py develop
PYTHONPATH="$HOME/python/lib/python" ~/devel/buildbot/sandbox/bin/python /usr/bin/trial buildbot.test

[I get the error "error: Could not find suitable distribution for Requirement.parse('Twisted==2.5.0')" on the first of these commands, but things seem to work ok anyway (I installed all buildbot dependencies via Ubuntu apt-get packages).]

Once that works, one can install a master and a slave and start them running each in their own terminal window for easy access to log:

cd ..
PYTHONPATH="$HOME/python/lib/python" sandbox/bin/buildbot create-master master
cp buildbot/contrib/bzr_buildbot.py master/
# Edit master/master.cfg as appropriate
cd master
PYTHONPATH="$HOME/python/lib/python" ../sandbox/bin/python /usr/bin/twistd --nodaemon --no_save -y buildbot.tac

cd ..
PYTHONPATH="$HOME/python/lib/python" sandbox/bin/buildbot create-slave slave localhost:9989 test testpass
# Edit slave/info/* as appropriate
cd slave
PYTHONPATH="$HOME/python/lib/python" ../sandbox/bin/python /usr/bin/twistd --nodaemon --no_save -y buildbot.tac

With this I was able to hack away at the code and just restart the master and slave to test stuff. The web status pages will be on http://localhost:8010/

See also

Comments

Comments loading...
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.