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CONTRIBUTING.md

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Contributing to container-registry-proxy

✨ Thanks for contributing to container-registry-proxy! ✨

How can I contribute?

  • Improve documentation
  • Give feedback on issues
  • Fix bugs and implement features

Coding rules

Source code

To ensure consistency and quality throughout the source code, all code modifications should have:

Commit message guidelines

Atomic commits

If possible, make atomic commits, which means:

  • a commit should contain exactly one self-contained functional change
  • a functional change should be contained in exactly one commit
  • a commit should not create an inconsistent state (such as test errors, linting errors, partial fix, feature with documentation etc...)

A complex feature can be broken down into multiple commits as long as each one maintains a consistent state and consists of a self-contained change.

Commit message format

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.

The footer can contain a closing reference to an issue.

Revert

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.

Type

The type must be one of the following:

Type Description
build Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
ci Changes to our CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
docs Documentation only changes
feat A new feature
fix A bug fix
perf A code change that improves performance
refactor A code change that neither fixes a bug nor adds a feature
style Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
test Adding missing tests or correcting existing tests

Subject

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

Body

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.

Footer

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.

Examples

`fix(pencil): stop graphite breaking when too much pressure applied`
`feat(pencil): add 'graphiteWidth' option`

Fix #42
perf(pencil): remove graphiteWidth option`

BREAKING CHANGE: The graphiteWidth option has been removed.

The default graphite width of 10mm is always used for performance reasons.

Submitting a Pull Request

Good pull requests, whether patches, improvements, or new features, are a fantastic help. They should remain focused in scope and avoid containing unrelated commits.

Please ask first before embarking on any significant pull requests (e.g. implementing features, refactoring code), otherwise you risk spending a lot of time working on something that the project's developers might not want to merge into the project.

If you have never created a pull request before, welcome 🎉 😄. Here is a great tutorial on how to send one :)

Here is a summary of the steps to follow:

  1. Set up the workspace
  2. If you cloned a while ago, get the latest changes from upstream and update dependencies:
$ git checkout master
$ git pull upstream master
$ rm -rf node_modules
$ npm install
  1. Create a new topic branch (off the main project development branch) to contain your feature, change, or fix:
$ git checkout -b <topic-branch-name>
  1. Make your code changes, following the Coding rules
  2. Push your topic branch up to your fork:
$ git push origin <topic-branch-name>
  1. Open a Pull Request with a clear title and description.

Tips: