I'm really glad you're reading this, because we need volunteer developers to help this project come to fruition.
We love to receive contributions from our community — you! There are many ways to contribute, from writing tutorials or blog posts, improving the documentation, submitting bug reports and feature requests or writing code which can be incorporated into project itself.
Following these guidelines helps to communicate that you respect the time of the developers managing and developing this open source project. In return, they should reciprocate that respect in addressing your issue, assessing changes, and helping you finalize your pull requests.
These are mostly guidelines, not rules. Use your best judgment, and feel free to propose changes to this document in a pull request.
This project has adopted a Code of Conduct that we expect project participants to adhere to. Please read the full text so that you can understand what actions will and will not be tolerated.
All work happens directly on GitHub. Both core team members and external contributors send pull requests which go through the same review process.
We will do our best to keep the master branch in good shape, with tests passing at all times.
If you send a pull request, please do it against the master branch.
This project follows semantic versioning. We release patch versions for bugfixes, minor versions for new features, and major versions for any breaking changes.
We are using GitHub Issues for all issues. Before filing a new task, try to make sure your problem doesn't already exist.
If you intend to change the public API, or make any non-trivial changes to the implementation, we recommend filing an issue. This lets us reach an agreement on your proposal before you put significant effort into it.
If you're only fixing a bug, it's fine to submit a pull request right away but we still recommend to file an issue detailing what you're fixing. This is helpful in case we don't accept that specific fix but want to keep track of the issue.
Working on your first Pull Request? You can learn how from this free video series:
How to Contribute to an Open Source Project on GitHub
If you decide to fix an issue, please be sure to check the comment thread in case somebody is already working on a fix. If nobody is working on it at the moment, please leave a comment stating that you intend to work on it so other people don't accidentally duplicate your effort.
If somebody claims an issue but doesn't follow up for more than two weeks, it's fine to take it over but you should still leave a comment.
The core team is monitoring for pull requests. We will review your pull request and either merge it, request changes to it, or close it with an explanation. We'll do our best to provide updates and feedback throughout the process.
Look at Airbnb's Style Guide will guide you in the right direction.
We have very precise rules over how our git commit messages can be formatted. This leads to more readable messages that are easy to follow when looking through the project history. But also, we use the git commit messages to generate change log.
The commit message formatting can be added using a typical git workflow or through the use of a CLI wizard (Commitizen). To use the wizard, run npm run cmt in your terminal after staging your changes in git.
Each commit message consists of a header, a body and a footer. The header has a special format that includes a type, a scope and a subject:
<type>(<scope>): <subject>
<BLANK LINE>
<body>
<BLANK LINE>
<footer>
The header is mandatory and the scope of the header is optional.
Any line of the commit message cannot be longer 100 characters!. This allows the message to be easier to read on GitHub as well as in various git tools.
If the commit reverts a previous commit, it should begin with revert: , followed by the header of the reverted commit. In the body it should say: This reverts commit <hash>., where the hash is the SHA of the commit being reverted. A commit with this format is automatically created by the git revert command.
Must be one of the following:
- feat: A new feature
- fix: A bug fix
- docs: Documentation only changes
- style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
- refactor: A code change that neither fixes a bug nor adds a feature
- perf: A code change that improves performance
- test: Adding missing or correcting existing tests
- chore: Changes to the build process or auxiliary tools and libraries such as documentation generation
The scope could be anything specifying place of the commit change. You can use * when the change affects more than a single scope.
The subject contains succinct description of the change:
- use the imperative, present tense: "change" not "changed" nor "changes"
- don't capitalize first letter
- no dot (.) at the end
Just as in the subject, use the imperative, present tense: "change" not "changed" nor "changes". The body should include the motivation for the change and contrast this with previous behavior.
The footer should contain any information about Breaking Changes and is also the place to reference GitHub issues that this commit closes.
Breaking Changes should start with the word BREAKING CHANGE: with a space or two newlines. The rest of the commit message is then used for this.
By contributing, you agree that your contributions will be licensed under its MIT license.
By making a contribution to this project, I certify that:
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(a) The contribution was created in whole or in part by me and I have the right to submit it under the open source license indicated in the file; or
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(b) The contribution is based upon previous work that, to the best of my knowledge, is covered under an appropriate open source license and I have the right under that license to submit that work with modifications, whether created in whole or in part by me, under the same open source license (unless I am permitted to submit under a different license), as indicated in the file; or
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(c) The contribution was provided directly to me by some other person who certified (a), (b) or (c) and I have not modified it.
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(d) I understand and agree that this project and the contribution are public and that a record of the contribution (including all personal information I submit with it, including my sign-off) is maintained indefinitely and may be redistributed consistent with this project or the open source license(s) involved.