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Want to contribute to the toolkit? Great!

We are more than happy to accept external contributions to the project in the form of feedback, bug reports, and pull requests.

Contributor License Agreement

Before we can accept patches, there's a quick web form you need to fill out.

  • If you're contributing as and individual (e.g. you own the intellectual property), fill out this form.
  • If you're contributing under a company, fill out this form instead.

This CLA asserts that contributions are owned by you and that we can license all work under our license.

Other projects require a similar agreement: jQuery, Firefox, Apache, Node, and many more.

More about CLAs

Initial setup

Here's an easy guide that should get you up and running:

  1. Fork the project on github and pull down your copy.

     git clone --recursive

    Note the --recursive. This is necessary for submodules to initialize properly. If you don't do a recursive clone, you'll have to init them manually:

     git submodule init
     git submodule update
  2. Development happens on the master branch. Get yourself on it!

     git checkout master

That's it for the one time setup. Now you're ready to make a change.

Submitting a pull request

We iterate fast! To avoid potential merge conflicts, it's a good idea to pull from the main project before making a change and submitting a pull request. The easiest way to do this is setup a remote called upstream and do a pull before working on a change:

cd toolkit
git remote add upstream git://

Then before making a change, do a pull from the upstream master branch:

git pull upstream master

To make life easier, add a "pull upstream" alias in your .gitconfig:

  pu = !"git fetch origin -v; git fetch upstream -v; git merge upstream/master"

That will pull in changes from your forked repo, the main (upstream) repo, and merge the two. Then it's just a matter of running git pu before a change and pushing to your repo:

git checkout master
git pu
# make change
git commit -a -m 'Awesome things.'
git push

Lastly, don't forget to submit the pull request.