1. Contributing to django CMS
Like every open-source project, django CMS is always looking for motivated
individuals to contribute to its source code.
However, to ensure the highest code quality and keep the repository nice and
tidy, everybody has to follow a few rules (nothing major, I promise :) )
1.2. In a nutshell
Here’s what the contribution process looks like, in a bullet-points fashion, and
only for the stuff we host on GitHub:
- django CMS is hosted on GitHub, at https://github.com/divio/django-cms
- The best method to contribute back is to create an account there, then fork
the project. You can use this fork as if it was your own project, and should
push your changes to it.
- When you feel your code is good enough for inclusion, “send us a pull
request”, by using the nice GitHub web interface.
1.3. Contributing Code
1.3.1. Getting the source code
If you’re interested in developing a new feature for the CMS, it is recommended
that you first discuss it on the django-cms-developers mailing list so as
not to do any work that will not get merged in anyway.
- Code will be reviewed and tested by at least one core developer, preferably
by several. Other community members are welcome to give feedback.
- Code must be tested. Your pull request should include unit-tests (that cover
the piece of code you’re submitting, obviously)
- Documentation should reflect your changes if relevant. There is nothing worse
than invalid documentation.
- Usually, if unit tests are written, pass, and your change is relevant, then
it’ll be merged.
Since we’re hosted on GitHub, django CMS uses git as a version control system.
The GitHub help is very well written and will get you started on using git
and GitHub in a jiffy. It is an invaluable resource for newbies and old timers
1.3.2. Syntax and conventions
We try to conform to PEP8 as much as possible. A few highlights:
- Indentation should be exactly 4 spaces. Not 2, not 6, not 8. 4. Also, tabs
- We try (loosely) to keep the line length at 79 characters. Generally the rule
is “it should look good in a terminal-base editor” (eg vim), but we try not be
[Godwin’s law] about it.
This is how you fix a bug or add a feature:
- fork us on GitHub.
- Checkout your fork.
- Hack hack hack, test test test, commit commit commit, test again.
- Push to your fork.
- Open a pull request.
Having a wide and comprehensive library of unit-tests and integration tests is
of exceeding importance. Contributing tests is widely regarded as a very
prestigious contribution (you’re making everybody’s future work much easier by
doing so). Good karma for you. Cookie points. Maybe even a beer if we meet in
Generally tests should be:
- Unitary (as much as possible). I.E. should test as much as possible only one
function/method/class. That’s the
very definition of unit tests. Integration tests are interesting too
obviously, but require more time to maintain since they have a higher
probability of breaking.
- Short running. No hard numbers here, but if your one test doubles the time it
takes for everybody to run them, it’s probably an indication that you’re doing
In a similar way to code, pull requests will be reviewed before pulling
(obviously), and we encourage discussion via code review (everybody learns
something this way) or IRC discussions.
188.8.131.52. Running the tests
To run the tests simply execute python setup.py test from your shell.
1.4. Contributing Documentation
Perhaps considered “boring” by hard-core coders, documentation is sometimes even
more important than code! This is what brings fresh blood to a project, and
serves as a reference for old timers. On top of this, documentation is the one
area where less technical people can help most - you just need to write
semi-decent English. People need to understand you. We don’t care about style or
Documentation should be:
- We use Sphinx/restructuredText. So obviously this is the format you should
use :) File extensions should be .rst.
- Written in English. We could discuss how it would bring more people to the
project by having a Klingon or some other translation, but that’s a problem we
will confront once we already have good documentation in English.
- Accessible. You should assume the reader to be moderately familiar with
Python and Django, but not anything else. Link to documentation of libraries
you use, for example, even if they are “obvious” to you (South is the first
example that comes to mind - it’s obvious to any Django programmer, but not to
any newbie at all).
A brief description of what it does is also welcome.
Pulling of documentation is pretty fast and painless. Usually somebody goes over
your text and merges it, since there are no “breaks” and that GitHub parses rst
files automagically it’s really convenient to work with.
Also, contributing to the documentation will earn you great respect from the
core developers. You get good karma just like a test contributor, but you get
double cookie points. Seriously. You rock.
1.4.1. Section style
We use Python documentation conventions for section marking:
- # with overline, for parts
- * with overline, for chapters
- =, for sections
- -, for subsections
- ^, for subsubsections
- ", for paragraphs
For translators we have a Transifex account where you can translate
the .po files and don’t need to install git or mercurial to be able to
contribute. All changes there will be automatically sent to the project.