192 lines
7.5 KiB
Markdown
192 lines
7.5 KiB
Markdown
# Contributing to Bootstrap
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Looking to contribute something to Bootstrap? **Here's how you can help.**
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Please take a moment to review this document in order to make the contribution
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process easy and effective for everyone involved.
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Following these guidelines helps to communicate that you respect the time of
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the developers managing and developing this open source project. In return,
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they should reciprocate that respect in addressing your issue or assessing
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patches and features.
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## Using the issue tracker
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The [issue tracker](https://github.com/twbs/bootstrap/issues) is
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the preferred channel for [bug reports](#bug-reports), [features requests](#feature-requests)
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and [submitting pull requests](#pull-requests), but please respect the following
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restrictions:
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* Please **do not** use the issue tracker for personal support requests. Stack
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Overflow ([`twitter-boostrap`](http://stackoverflow.com/questions/tagged/twitter-bootstrap) tag) or [IRC](https://github.com/twbs/bootstrap/blob/master/README.md#community) are better places to get help.
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* Please **do not** derail or troll issues. Keep the discussion on topic and
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respect the opinions of others.
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* Please **do not** open issues or pull requests regarding the code in
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[`Normalize`](https://github.com/necolas/normalize.css) (open them in
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their respective repositories).
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## Bug reports
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A bug is a _demonstrable problem_ that is caused by the code in the repository.
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Good bug reports are extremely helpful, so thanks!
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Guidelines for bug reports:
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1. **Use the GitHub issue search** — check if the issue has already been
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reported.
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2. **Check if the issue has been fixed** — try to reproduce it using the
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latest `master` or development branch in the repository.
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3. **Isolate the problem** — ideally create a [reduced test
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case](http://css-tricks.com/6263-reduced-test-cases/) and a live example.
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[This JS Bin](http://jsbin.com/EBAwOkOK/1) is a helpful template.
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A good bug report shouldn't leave others needing to chase you up for more
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information. Please try to be as detailed as possible in your report. What is
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your environment? What steps will reproduce the issue? What browser(s) and OS
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experience the problem? Do other browsers show the bug differently? What
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would you expect to be the outcome? All these details will help people to fix
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any potential bugs.
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Example:
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> Short and descriptive example bug report title
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>
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> A summary of the issue and the browser/OS environment in which it occurs. If
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> suitable, include the steps required to reproduce the bug.
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>
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> 1. This is the first step
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> 2. This is the second step
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> 3. Further steps, etc.
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>
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> `<url>` - a link to the reduced test case
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>
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> Any other information you want to share that is relevant to the issue being
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> reported. This might include the lines of code that you have identified as
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> causing the bug, and potential solutions (and your opinions on their
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> merits).
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## Feature requests
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Feature requests are welcome. But take a moment to find out whether your idea
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fits with the scope and aims of the project. It's up to *you* to make a strong
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case to convince the project's developers of the merits of this feature. Please
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provide as much detail and context as possible.
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## Pull requests
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Good pull requests—patches, improvements, new features—are a fantastic
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help. They should remain focused in scope and avoid containing unrelated
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commits.
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**Please ask first** before embarking on any significant pull request (e.g.
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implementing features, refactoring code, porting to a different language),
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otherwise you risk spending a lot of time working on something that the
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project's developers might not want to merge into the project.
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Please adhere to the [coding guidelines](#code-guidelines) used throughout the
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project (indentation, accurate comments, etc.) and any other requirements
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(such as test coverage).
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Adhering to the following process is the best way to get your work
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included in the project:
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1. [Fork](http://help.github.com/fork-a-repo/) the project, clone your fork,
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and configure the remotes:
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```bash
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# Clone your fork of the repo into the current directory
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git clone https://github.com/<your-username>/bootstrap.git
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# Navigate to the newly cloned directory
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cd bootstrap
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# Assign the original repo to a remote called "upstream"
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git remote add upstream https://github.com/twbs/bootstrap.git
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```
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2. If you cloned a while ago, get the latest changes from upstream:
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```bash
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git checkout master
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git pull upstream master
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```
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3. Create a new topic branch (off the main project development branch) to
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contain your feature, change, or fix:
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```bash
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git checkout -b <topic-branch-name>
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```
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4. Commit your changes in logical chunks. Please adhere to these [git commit
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message guidelines](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html)
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or your code is unlikely be merged into the main project. Use Git's
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[interactive rebase](https://help.github.com/articles/interactive-rebase)
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feature to tidy up your commits before making them public.
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5. Locally merge (or rebase) the upstream development branch into your topic branch:
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```bash
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git pull [--rebase] upstream master
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```
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6. Push your topic branch up to your fork:
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```bash
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git push origin <topic-branch-name>
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```
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7. [Open a Pull Request](https://help.github.com/articles/using-pull-requests/)
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with a clear title and description against the `master` branch.
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**IMPORTANT**: By submitting a patch, you agree to allow the project owners to
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license your work under the terms of the [MIT License](LICENSE.md).
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## Code guidelines
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### HTML
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- Two spaces for indentation, never tabs.
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- Double quotes only, never single quotes.
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- Always use proper indentation.
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- Use tags and elements appropriate for an HTML5 doctype (e.g., self-closing tags).
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- Use CDNs and HTTPS for third-party JS when possible. We don't use protocol-relative URLs in this case because they break when viewing the page locally via `file://`.
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### CSS
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- CSS changes must be done in `.less` files first, never just in the compiled `.css` files.
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- Adhere to the [CSS property order](http://markdotto.com/2011/11/29/css-property-order/).
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- Multiple-line approach (one property and value per line).
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- Always a space after a property's colon (e.g., `display: block;` and not `display:block;`).
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- End all lines with a semi-colon.
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- For multiple, comma-separated selectors, place each selector on its own line.
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- Attribute selectors, like `input[type="text"]` should always wrap the attribute's value in double quotes, for consistency and safety (see this [blog post on unquoted attribute values](http://mathiasbynens.be/notes/unquoted-attribute-values) that can lead to XSS attacks).
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- Attribute selectors should only be used where absolutely necessary (e.g., form controls) and should be avoided on custom components for performance and explicitness.
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- Series of classes for a component should include a base class (e.g., `.component`) and use the base class as a prefix for modifier and sub-components (e.g., `.component-lg`).
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- Avoid inheritance and over nesting—use single, explicit classes whenever possible.
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- When feasible, default color palettes should comply with [WCAG color contrast guidelines](http://www.w3.org/TR/WCAG20/#visual-audio-contrast).
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### JS
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- No semicolons
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- Comma first
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- 2 spaces (no tabs)
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- strict mode
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- "Attractive"
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## License
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By contributing your code, you agree to license your contribution under the [MIT license](https://github.com/twbs/bootstrap/blob/master/LICENSE).
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Prior to v3.1.0, Bootstrap was released under the Apache License v2.0.
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