Get Zulip code¶
Zulip uses a forked-repo and rebase-oriented workflow. This means that all contributors create a fork of the Zulip repository they want to contribute to and then submit pull requests to the upstream repository to have their contributions reviewed and accepted. We also recommend you work on feature branches.
Step 1a: Create your fork¶
The following steps you’ll only need to do the first time you set up a machine for contributing to a given Zulip project. You’ll need to repeat the steps for any additional Zulip projects (list) that you work on.
Step 1b: Clone to your machine¶
Next, clone your fork to your local machine:
$ git clone --config pull.rebase https://github.com/YOUR_USERNAME/zulip.git Cloning into 'zulip' remote: Counting objects: 86768, done. remote: Compressing objects: 100% (15/15), done. remote: Total 86768 (delta 5), reused 1 (delta 1), pack-reused 86752 Receiving objects: 100% (86768/86768), 112.96 MiB | 523.00 KiB/s, done. Resolving deltas: 100% (61106/61106), done. Checking connectivity... done.
--config pull.rebase option configures Git so that
will behave like
git pull --rebase by default. Using
git pull --rebase to update your changes to resolve merge conflicts is
expected by essentially all of open source projects, including Zulip.
You can also set that option after cloning using
git config --add pull.rebase true, or just be careful to always run
git pull --rebase, never
Note: If you receive an error while cloning, you may not have added your ssh key to GitHub.
Once the repository is cloned, we recommend running setup-git-repo to install Zulip’s pre-commit hook which runs the Zulip linters on the changed files when you commit.
Step 1c: Connect your fork to Zulip upstream¶
First, show the currently configured remote repository:
$ git remote -v origin email@example.com:YOUR_USERNAME/zulip.git (fetch) origin firstname.lastname@example.org:YOUR_USERNAME/zulip.git (push)
Note: If you’ve cloned the repository using a graphical client, you may already
have the upstream remote repository configured. For example, when you clone
zulip/zulip with the GitHub desktop client it configures
the remote repository
zulip and you see the following output from
git remote -v:
origin email@example.com:YOUR_USERNAME/zulip.git (fetch) origin firstname.lastname@example.org:YOUR_USERNAME/zulip.git (push) zulip https://github.com/zulip/zulip.git (fetch) zulip https://github.com/zulip/zulip.git (push)
If your client hasn’t automatically configured a remote for zulip/zulip, you’ll need to with:
$ git remote add -f upstream https://github.com/zulip/zulip.git
Finally, confirm that the new remote repository, upstream, has been configured:
$ git remote -v origin email@example.com:YOUR_USERNAME/zulip.git (fetch) origin firstname.lastname@example.org:YOUR_USERNAME/zulip.git (push) upstream https://github.com/zulip/zulip.git (fetch) upstream https://github.com/zulip/zulip.git (push)
Step 2: Set up the Zulip development environment¶
If you haven’t already, now is a good time to install the Zulip development environment (overview). If you’re new to working on Zulip or open source projects in general, we recommend following our detailed guide for first-time contributors.
Step 3: Configure continuous integration for your fork¶
This step is optional, but recommended.
The Zulip Server project is configured to use CircleCI to test and create builds upon each new commit and pull request. CircleCI is the primary CI that runs frontend and backend tests across a wide range of Ubuntu distributions.
CircleCI is free for open source projects and it’s easy to configure for your own fork of Zulip. After doing so, CircleCI will run tests for new refs you push to GitHub and email you the outcome (you can also view the results in the web interface).
Running CI against your fork can help save both your and the Zulip maintainers time by making it easy to test a change fully before submitting a pull request. We generally recommend a workflow where as you make changes, you use a fast edit-refresh cycle running individual tests locally until your changes work. But then once you’ve gotten the tests you’d expect to be relevant to your changes working, push a branch to run the full test suite in CircleCI before you create a pull request. While you wait for CircleCI jobs to run, you can start working on your next task. When the tests finish, you can create a pull request that you already know passes the tests.
Set up CircleCI¶
First, sign in to CircleCI with your GitHub account and authorize CircleCI to access your GitHub account and repositories. Once you’ve logged in you’ll be in the Projects section which will list all your GitHub repositories. Now goto the row of Zulip and click on Set Up Project. You’ll then see a sample hello world config. As your forked repository from Zulip will already have the config file, so click on Start Building and then choose the Add Manually option. After that click on Start Building to run the build.