372 lines
14 KiB
Markdown
372 lines
14 KiB
Markdown
# Contributing to Angular
|
|
|
|
We would love for you to contribute to Angular and help make it even better than it is today!
|
|
As a contributor, here are the guidelines we would like you to follow:
|
|
|
|
- [Code of Conduct](#coc)
|
|
- [Question or Problem?](#question)
|
|
- [Issues and Bugs](#issue)
|
|
- [Feature Requests](#feature)
|
|
- [Submission Guidelines](#submit)
|
|
- [Coding Rules](#rules)
|
|
- [Commit Message Guidelines](#commit)
|
|
- [Signing the CLA](#cla)
|
|
|
|
|
|
## <a name="coc"></a> Code of Conduct
|
|
|
|
Help us keep Angular open and inclusive.
|
|
Please read and follow our [Code of Conduct][coc].
|
|
|
|
|
|
## <a name="question"></a> Got a Question or Problem?
|
|
|
|
Do not open issues for general support questions as we want to keep GitHub issues for bug reports and feature requests.
|
|
Instead, we recommend using [Stack Overflow](https://stackoverflow.com/questions/tagged/angular) to ask support-related questions. When creating a new question on Stack Overflow, make sure to add the `angular` tag.
|
|
|
|
Stack Overflow is a much better place to ask questions since:
|
|
|
|
- there are thousands of people willing to help on Stack Overflow
|
|
- questions and answers stay available for public viewing so your question/answer might help someone else
|
|
- Stack Overflow's voting system assures that the best answers are prominently visible.
|
|
|
|
To save your and our time, we will systematically close all issues that are requests for general support and redirect people to Stack Overflow.
|
|
|
|
If you would like to chat about the question in real-time, you can reach out via [our gitter channel][gitter].
|
|
|
|
|
|
## <a name="issue"></a> Found a Bug?
|
|
|
|
If you find a bug in the source code, you can help us by [submitting an issue](#submit-issue) to our [GitHub Repository][github].
|
|
Even better, you can [submit a Pull Request](#submit-pr) with a fix.
|
|
|
|
|
|
## <a name="feature"></a> Missing a Feature?
|
|
You can *request* a new feature by [submitting an issue](#submit-issue) to our GitHub Repository.
|
|
If you would like to *implement* a new feature, please consider the size of the change in order to determine the right steps to proceed:
|
|
|
|
* For a **Major Feature**, first open an issue and outline your proposal so that it can be discussed.
|
|
This process allows us to better coordinate our efforts, prevent duplication of work, and help you to craft the change so that it is successfully accepted into the project.
|
|
|
|
**Note**: Adding a new topic to the documentation, or significantly re-writing a topic, counts as a major feature.
|
|
|
|
* **Small Features** can be crafted and directly [submitted as a Pull Request](#submit-pr).
|
|
|
|
|
|
## <a name="submit"></a> Submission Guidelines
|
|
|
|
|
|
### <a name="submit-issue"></a> Submitting an Issue
|
|
|
|
Before you submit an issue, please search the issue tracker, maybe an issue for your problem already exists and the discussion might inform you of workarounds readily available.
|
|
|
|
We want to fix all the issues as soon as possible, but before fixing a bug we need to reproduce and confirm it.
|
|
In order to reproduce bugs, we require that you provide a minimal reproduction.
|
|
Having a minimal reproducible scenario gives us a wealth of important information without going back and forth to you with additional questions.
|
|
|
|
A minimal reproduction allows us to quickly confirm a bug (or point out a coding problem) as well as confirm that we are fixing the right problem.
|
|
|
|
We require a minimal reproduction to save maintainers' time and ultimately be able to fix more bugs.
|
|
Often, developers find coding problems themselves while preparing a minimal reproduction.
|
|
We understand that sometimes it might be hard to extract essential bits of code from a larger codebase but we really need to isolate the problem before we can fix it.
|
|
|
|
Unfortunately, we are not able to investigate / fix bugs without a minimal reproduction, so if we don't hear back from you, we are going to close an issue that doesn't have enough info to be reproduced.
|
|
|
|
You can file new issues by selecting from our [new issue templates](https://github.com/angular/angular/issues/new/choose) and filling out the issue template.
|
|
|
|
|
|
### <a name="submit-pr"></a> Submitting a Pull Request (PR)
|
|
|
|
Before you submit your Pull Request (PR) consider the following guidelines:
|
|
|
|
1. Search [GitHub](https://github.com/angular/angular/pulls) for an open or closed PR that relates to your submission.
|
|
You don't want to duplicate existing efforts.
|
|
|
|
2. Be sure that an issue describes the problem you're fixing, or documents the design for the feature you'd like to add.
|
|
Discussing the design upfront helps to ensure that we're ready to accept your work.
|
|
|
|
3. Please sign our [Contributor License Agreement (CLA)](#cla) before sending PRs.
|
|
We cannot accept code without a signed CLA.
|
|
Make sure you author all contributed Git commits with email address associated with your CLA signature.
|
|
|
|
4. Fork the angular/angular repo.
|
|
|
|
5. Make your changes in a new git branch:
|
|
|
|
```shell
|
|
git checkout -b my-fix-branch master
|
|
```
|
|
|
|
6. Create your patch, **including appropriate test cases**.
|
|
|
|
7. Follow our [Coding Rules](#rules).
|
|
|
|
8. Run the full Angular test suite, as described in the [developer documentation][dev-doc], and ensure that all tests pass.
|
|
|
|
9. Commit your changes using a descriptive commit message that follows our [commit message conventions](#commit).
|
|
Adherence to these conventions is necessary because release notes are automatically generated from these messages.
|
|
|
|
```shell
|
|
git commit --all
|
|
```
|
|
Note: the optional commit `-a` command line option will automatically "add" and "rm" edited files.
|
|
|
|
10. Push your branch to GitHub:
|
|
|
|
```shell
|
|
git push origin my-fix-branch
|
|
```
|
|
|
|
11. In GitHub, send a pull request to `angular:master`.
|
|
|
|
|
|
#### Addressing review feedback
|
|
|
|
If we ask for changes via code reviews then:
|
|
|
|
1. Make the required updates to the code.
|
|
|
|
2. Re-run the Angular test suites to ensure tests are still passing.
|
|
|
|
3. Create a fixup commit and push to your GitHub repository (this will update your Pull Request):
|
|
|
|
```shell
|
|
git commit --all --fixup HEAD
|
|
git push
|
|
```
|
|
|
|
For more info on working with fixup commits see [here](docs/FIXUP_COMMITS.md).
|
|
|
|
> Fixup commits (as shown above) are preferred when addressing review feedback, but in some cases you may need to amend the original commit instead of creating a fixup commit (for example, if you want to update the commit message).
|
|
> To amend the last commit and update the Pull Request:
|
|
>
|
|
> ```shell
|
|
> git commit --all --amend
|
|
> git push --force-with-lease
|
|
> ```
|
|
|
|
That's it! Thank you for your contribution!
|
|
|
|
|
|
#### After your pull request is merged
|
|
|
|
After your pull request is merged, you can safely delete your branch and pull the changes from the main (upstream) repository:
|
|
|
|
* Delete the remote branch on GitHub either through the GitHub web UI or your local shell as follows:
|
|
|
|
```shell
|
|
git push origin --delete my-fix-branch
|
|
```
|
|
|
|
* Check out the master branch:
|
|
|
|
```shell
|
|
git checkout master -f
|
|
```
|
|
|
|
* Delete the local branch:
|
|
|
|
```shell
|
|
git branch -D my-fix-branch
|
|
```
|
|
|
|
* Update your master with the latest upstream version:
|
|
|
|
```shell
|
|
git pull --ff upstream master
|
|
```
|
|
|
|
|
|
## <a name="rules"></a> Coding Rules
|
|
To ensure consistency throughout the source code, keep these rules in mind as you are working:
|
|
|
|
* All features or bug fixes **must be tested** by one or more specs (unit-tests).
|
|
* All public API methods **must be documented**.
|
|
* We follow [Google's JavaScript Style Guide][js-style-guide], but wrap all code at **100 characters**.
|
|
|
|
An automated formatter is available, see [DEVELOPER.md](docs/DEVELOPER.md#clang-format).
|
|
|
|
|
|
## <a name="commit"></a> Commit Message Format
|
|
|
|
*This specification is inspired and supersedes the [AngularJS commit message format][commit-message-format].*
|
|
|
|
We have very precise rules over how our Git commit messages must be formatted.
|
|
This format leads to **easier to read commit history**.
|
|
|
|
Each commit message consists of a **header**, a **body**, and a **footer**.
|
|
|
|
|
|
```
|
|
<header>
|
|
<BLANK LINE>
|
|
<body>
|
|
<BLANK LINE>
|
|
<footer>
|
|
```
|
|
|
|
The `header` is mandatory and must conform to the [Commit Message Header](#commit-header) format.
|
|
|
|
The `body` is mandatory for all commits except for those of scope "docs".
|
|
When the body is required it must be at least 20 characters long.
|
|
|
|
The `footer` is optional.
|
|
|
|
Any line of the commit message cannot be longer than 100 characters.
|
|
|
|
|
|
#### <a href="commit-header"></a>Commit Message Header
|
|
|
|
```
|
|
<type>(<scope>): <short summary>
|
|
│ │ │
|
|
│ │ └─⫸ Summary in present tense. Not capitalized. No period at the end.
|
|
│ │
|
|
│ └─⫸ Commit Scope: animations|bazel|benchpress|common|compiler|compiler-cli|core|
|
|
│ elements|forms|http|language-service|localize|platform-browser|
|
|
│ platform-browser-dynamic|platform-server|router|service-worker|
|
|
│ upgrade|zone.js|packaging|changelog|dev-infra|docs-infra|migrations|
|
|
│ ngcc|ve
|
|
│
|
|
└─⫸ Commit Type: build|ci|docs|feat|fix|perf|refactor|style|test
|
|
```
|
|
|
|
The `<type>` and `<summary>` fields are mandatory, the `(<scope>)` field is optional.
|
|
|
|
|
|
##### Type
|
|
|
|
Must be one of the following:
|
|
|
|
* **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: 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
|
|
* **test**: Adding missing tests or correcting existing tests
|
|
|
|
|
|
##### Scope
|
|
The scope should be the name of the npm package affected (as perceived by the person reading the changelog generated from commit messages).
|
|
|
|
The following is the list of supported scopes:
|
|
|
|
* `animations`
|
|
* `bazel`
|
|
* `benchpress`
|
|
* `common`
|
|
* `compiler`
|
|
* `compiler-cli`
|
|
* `core`
|
|
* `elements`
|
|
* `forms`
|
|
* `http`
|
|
* `language-service`
|
|
* `localize`
|
|
* `platform-browser`
|
|
* `platform-browser-dynamic`
|
|
* `platform-server`
|
|
* `router`
|
|
* `service-worker`
|
|
* `upgrade`
|
|
* `zone.js`
|
|
|
|
There are currently a few exceptions to the "use package name" rule:
|
|
|
|
* `packaging`: used for changes that change the npm package layout in all of our packages, e.g. public path changes, package.json changes done to all packages, d.ts file/format changes, changes to bundles, etc.
|
|
|
|
* `changelog`: used for updating the release notes in CHANGELOG.md
|
|
|
|
* `dev-infra`: used for dev-infra related changes within the directories /scripts, /tools and /dev-infra
|
|
|
|
* `docs-infra`: used for docs-app (angular.io) related changes within the /aio directory of the repo
|
|
|
|
* `migrations`: used for changes to the `ng update` migrations.
|
|
|
|
* `ngcc`: used for changes to the [Angular Compatibility Compiler](./packages/compiler-cli/ngcc/README.md)
|
|
|
|
* `ve`: used for changes specific to ViewEngine (legacy compiler/renderer).
|
|
|
|
* none/empty string: useful for `style`, `test` and `refactor` changes that are done across all packages (e.g. `style: add missing semicolons`) and for docs changes that are not related to a specific package (e.g. `docs: fix typo in tutorial`).
|
|
|
|
|
|
##### Summary
|
|
|
|
Use the summary field to provide a succinct description of the change:
|
|
|
|
* use the imperative, present tense: "change" not "changed" nor "changes"
|
|
* don't capitalize the first letter
|
|
* no dot (.) at the end
|
|
|
|
|
|
#### Commit Message Body
|
|
|
|
Just as in the summary, use the imperative, present tense: "fix" not "fixed" nor "fixes".
|
|
|
|
Explain the motivation for the change in the commit message body. This commit message should explain _why_ you are making the change.
|
|
You can include a comparison of the previous behavior with the new behavior in order to illustrate the impact of the change.
|
|
|
|
|
|
#### Commit Message Footer
|
|
|
|
The footer can contain information about breaking changes and is also the place to reference GitHub issues, Jira tickets, and other PRs that this commit closes or is related to.
|
|
|
|
```
|
|
BREAKING CHANGE: <breaking change summary>
|
|
<BLANK LINE>
|
|
<breaking change description + migration instructions>
|
|
<BLANK LINE>
|
|
<BLANK LINE>
|
|
Fixes #<issue number>
|
|
```
|
|
|
|
Breaking Change section should start with the phrase "BREAKING CHANGE: " followed by a summary of the breaking change, a blank line, and a detailed description of the breaking change that also includes migration instructions.
|
|
|
|
|
|
### Revert commits
|
|
|
|
If the commit reverts a previous commit, it should begin with `revert: `, followed by the header of the reverted commit.
|
|
|
|
The content of the commit message body should contain:
|
|
|
|
- information about the SHA of the commit being reverted in the following format: `This reverts commit <SHA>`,
|
|
- a clear description of the reason for reverting the commit message.
|
|
|
|
|
|
## <a name="cla"></a> Signing the CLA
|
|
|
|
Please sign our Contributor License Agreement (CLA) before sending pull requests. For any code
|
|
changes to be accepted, the CLA must be signed. It's a quick process, we promise!
|
|
|
|
* For individuals, we have a [simple click-through form][individual-cla].
|
|
* For corporations, we'll need you to
|
|
[print, sign and one of scan+email, fax or mail the form][corporate-cla].
|
|
|
|
If you have more than one GitHub accounts, or multiple email addresses associated with a single GitHub account, you must sign the CLA using the primary email address of the GitHub account used to author Git commits and send pull requests.
|
|
|
|
The following documents can help you sort out issues with GitHub accounts and multiple email addresses:
|
|
|
|
* https://help.github.com/articles/setting-your-commit-email-address-in-git/
|
|
* https://stackoverflow.com/questions/37245303/what-does-usera-committed-with-userb-13-days-ago-on-github-mean
|
|
* https://help.github.com/articles/about-commit-email-addresses/
|
|
* https://help.github.com/articles/blocking-command-line-pushes-that-expose-your-personal-email-address/
|
|
|
|
|
|
|
|
|
|
[angular-group]: https://groups.google.com/forum/#!forum/angular
|
|
[coc]: https://github.com/angular/code-of-conduct/blob/master/CODE_OF_CONDUCT.md
|
|
[commit-message-format]: https://docs.google.com/document/d/1QrDFcIiPjSLDn3EL15IJygNPiHORgU1_OOAqWjiDU5Y/edit#
|
|
[corporate-cla]: http://code.google.com/legal/corporate-cla-v1.0.html
|
|
[dev-doc]: https://github.com/angular/angular/blob/master/docs/DEVELOPER.md
|
|
[github]: https://github.com/angular/angular
|
|
[gitter]: https://gitter.im/angular/angular
|
|
[individual-cla]: http://code.google.com/legal/individual-cla-v1.0.html
|
|
[js-style-guide]: https://google.github.io/styleguide/jsguide.html
|
|
[jsfiddle]: http://jsfiddle.net
|
|
[plunker]: http://plnkr.co/edit
|
|
[runnable]: http://runnable.com
|
|
[stackoverflow]: http://stackoverflow.com/questions/tagged/angular
|