ionic-framework/CONTRIBUTING.md

# Contributing

Thanks for your interest in contributing to the Ionic Framework! :tada:


## Contributing Etiquette

Please see our [Contributor Code of Conduct](./CODE_OF_CONDUCT.md) for information on our rules of conduct.


## Creating an Issue

If you have a question about using the framework, please ask on the [Ionic Forum](http://forum.ionicframework.com/) or in the [Ionic Worldwide Slack](http://ionicworldwide.herokuapp.com/) group.

If you think you have found a bug, or have a new feature idea, please start by making sure it hasn't already been [reported](https://github.com/driftyco/ionic/issues?utf8=%E2%9C%93&q=is%3Aissue). You can search through existing issues to see if there is a similar one reported. Include closed issues as it may have been closed with a solution.

Next, [create a new issue](https://github.com/driftyco/ionic/issues/new) that thoroughly explains the problem. Please fill out the populated issue form before submitting the issue.


## Creating a Pull Request

We appreciate you taking the time to contribute! Before submitting a pull request, we ask that you please [create an issue](#creating-an-issue) that explains the bug or feature request and let us know that you plan on creating a pull request for it. If an issue already exists, please comment on that issue letting us know you would like to submit a pull request for it. This helps us to keep track of the pull request and make sure there isn't duplicated effort.

Looking for an issue to fix? Make sure to look through our issues with the [help wanted](https://github.com/driftyco/ionic/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22) label!

### Setup

1. Fork the repo.
2. Clone your fork.
3. Make a branch for your change.
4. Run `npm install` (make sure you have [node](https://nodejs.org/en/) and [npm](http://blog.npmjs.org/post/85484771375/how-to-install-npm) installed first)


### Modifying Components

1. Make any changes to the component.
2. Modify the e2e test in the `test/` directory under the component directory, if possible. If the test does not exist and it is possible to show the change, please create a new test in a directory called `basic/`.

#### TypeScript Changes

1. If there is a `*.spec.ts` file located in the `test/` folder, update it to include a karma test for your change, if needed. If this file doesn't exist, please notify us.
2. Run `gulp karma` to make sure all tests are working, regardless if a test was added.
3. Run `gulp tslint` and fix any linter errors.

#### Sass Changes

1. If the css property is something that the user may want to override and it won't break the component layout, it should be given a Sass variable. See our [doc on naming Sass variables](https://docs.google.com/document/d/1OyOyrRE5lpB_9mdkF0HWVQLV97fHma450N8XqE4mjZQ/edit?usp=sharing).
2. After any changes to the Sass files run the [Sass Linter](https://github.com/brigade/scss-lint), and fix any linter errors:
 - Requires [Ruby](https://www.ruby-lang.org/en/documentation/installation/). **Skip this step entirely if you are unable to install Ruby.**
 - Install the linter: `gem install scss_lint`
 - Make sure to run the linter at the root of the repository.
 - To check all component Sass files: `scss-lint ionic/**/**/*.scss`
 - To check a specific Sass file: `scss-lint ionic/components/toolbar/toolbar.ios.scss`


#### Viewing Changes

1. Run the gulp watch task for e2e tests: `gulp watch.e2e`
2. Launch your browser and navigate to `http://localhost:8000/dist/e2e`
3. From here, navigate to the component you are changing.
4. Any changes to the e2e tests in the `test/` directory will show here.
5. If your changes look good, you're ready to [commit](#committing)!


#### Adding Documentation

1. To add or modify API Documentation for a component, it should be added/changed in the component's TypeScript (`*.ts`) file, prior to the Class definition. For example, `Badge` looks similar to this:

  ```
  /**
    * @name Badge
    * @module ionic
    * @description
    * Badges are simple components in Ionic containing numbers or text.
    *
    * @see {@link /docs/v2/components/#badges Badges Component Docs}
    * @demo /docs/v2/demos/badge/
  **/
  ```

  where `@name` is the Class name, `@description` is the description displayed on the documentation page, `@see` links to any related pages, and `@demo` links to the API demo located in the `demos` folder.
2. In order to run API documentation locally, you will need to clone the `ionic-site` repo as a sibling to the `ionic` repo and then run it: https://github.com/driftyco/ionic-site#local-build
3. Then, run `gulp docs` in the `ionic` repo every time you make a change and the site will update.
4. If the change affects the component documentation, create an issue on the `ionic-site` repo: https://github.com/driftyco/ionic-site/issues


#### Adding Demos

1. Create or modify the demo in the `demos/` folder.
2. If it is new, link to the demo in the component's TypeScript (`*.ts`) file (under `ionic/components`) by adding a link to it in the documentation using `@demo`, for example:

  ```
  /**
    * @name Badge
    *
    * ...
    *
    * @demo /docs/v2/demos/badge/
  **/
  ```
3. Run `gulp watch.demos` to watch for changes to the demo
4. Navigate to `http://localhost:8000/dist/demos/` and then to your component's demo to view it.
5. If the change affects the component demos, create an issue on the `ionic-site` repo: https://github.com/driftyco/ionic-site/issues

### Committing

1. Install [Commitizen](https://github.com/commitizen/cz-cli#installing-the-command-line-tool) (add sudo if on OSX/Linux): `npm install -g commitizen`
2. Use commitizen to commit instead of `git commit`: `git cz`
3. This will prompt you with questions and commit when you are finished.
4. Submit the Pull Request!


## License

By contributing your code to the driftyco/ionic GitHub Repository, you agree to license your contribution under the MIT license.