Contributing to Discourse

Before You Start

Anyone wishing to contribute to the Discourse/Discourse project MUST read & sign the Electronic Discourse Forums Contribution License Agreement. The Discourse team is legally prevented from accepting any pull requests from users who have not signed the CLA first.

Reporting Bugs

Always update to the most recent master release; the bug may already be resolved.
Search for similar issues on the Discourse meta forum; it may already be an identified problem.
If this is a bug or problem that requires any kind of extended discussion -- open a topic on meta about it. Do not open a bug on GitHub.
If this is a bug or problem that is clear, simple, and is unlikely to requir any discussion -- open an issue on GitHub with a reproduction of the bug including workflows, screenshots, or links to examples on jsfiddle.net. If possible, submit a Pull Request with a failing test. If you'd rather take matters into your own hands, fix the bug yourself (jump down to the "Contributing (Step-by-step)" section).
When the bug is fixed, we will do our best to update the Discourse topic or GitHub issue with a resolution.

Requesting New Features

Do not submit a feature request on GitHub; all feature requests on GitHub will be closed. Instead, visit the Discourse development forums, and search for the "Feature" category, which will filter a list of outstanding requests. Review this list for similar feature requests. It's possible somebody has already asked for this feature or provided a pull request that we're still discussing.
Provide a clear and detailed explanation of the feature you want and why it's important to add. The feature must apply to a wide array of users of Discourse; for smaller, more targeted "one-off" features, you might consider writing a plugin for Discourse. You may also want to provide us with some advance documentation on the feature, which will help the community to better understand where it will fit.
If you're a Rock Star programmer, build the feature yourself (refer to the "Contributing (Step-by-step)" section below).

Contributing (Step-by-step)

Clone the Repo:

git clone git://github.com/discourse/discourse.git

Create a new Branch:

cd discourse
git checkout -b new_discourse_branch

Code

Make some magic happen! Remember to:

Adhere to conventions.
Update CHANGELOG with a description of your work.
Include tests, and ensure they pass.
Remember to check to see if your new functionality has an impact on our Documentation, and include updates as appropriate.

Completing these steps will increase the chances of your code making it into Discourse/Discourse.

Follow the Coding Conventions

Discourse follows those code style conventions:

two spaces, no tabs
no trailing whitespaces, blank lines should have no spaces
use spaces around operators, after commas, colons, semicolons, around { and before }
no space after (, [ or before ], )
use Ruby 1.9 hash syntax: prefer { a: 1 } over { :a => 1 }
prefer class << self; def method; end over def class.method for class methods
prefer { ... } over do ... end for single-line blocks, avoid using { ... } for multi-line blocks
avoid return when not required

However, please note that pull requests consisting entirely of style changes are not welcome on this project. Style changes in the context of pull requests that also refactor code, fix bugs, improve functionality are welcome.

Commit

git commit -a

Do not leave the commit message blank! Provide a detailed description of your commit!

PRO TIP

Ensure that if you supply a multitude of commits, they are squashed into a single commit:

git remote add upstream https://github.com/discourse/discourse.git
git fetch upstream
git checkout new_discourse_branch
git rebase upstream/master
git rebase -i

< Choose 'squash' for all of your commits except the first one. >
< Edit the commit message to make sense, and describe all your changes. >

git push origin new_discourse_branch -f

Update your branch

git checkout master
git pull --rebase

Fork

git remote add mine git@github.com:<your user name>/discourse.git

Push to your remote

git push mine new_discourse_branch

Issue a Pull Request

In order to make a pull request,

Navigate to the Discourse repository you just pushed to (e.g. https://github.com/your-user-name/discourse)
Click "Pull Request".
Write your branch name in the branch field (this is filled with "master" by default)
Click "Update Commit Range".
Ensure the changesets you introduced are included in the "Commits" tab.
Ensure that the "Files Changed" incorporate all of your changes.
Fill in some details about your potential patch including a meaningful title.
Click "Send pull request".

Once these steps are done, you will soon receive feedback from The Discourse team!

Responding to Feedback

The Discourse team may recommend adjustments to your code, and this is perfectly normal. Part of interacting with a healthy open-source community requires you to be open to learning new techniques and strategies; don't get discouraged! Remember: if the Discourse team suggest changes to your code, they care enough about your work that they want to include it, and hope that you can assist by implementing those revisions on your own.

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