README.md

# A collection of `.gitignore` templates

This is GitHub’s collection of [`.gitignore`][man] file templates.
We use this list to populate the `.gitignore` template choosers available
in the GitHub.com interface when creating new repositories and files.

For more information about how `.gitignore` files work, and how to use them,
the following resources are a great place to start:

- The [Ignoring Files chapter][chapter] of the [Pro Git][progit] book.
- The [Ignoring Files article][help] on the GitHub Help site.
- The [gitignore(5)][man] manual page.

[man]: http://git-scm.com/docs/gitignore
[help]: https://help.github.com/articles/ignoring-files
[chapter]: https://git-scm.com/book/en/Git-Basics-Recording-Changes-to-the-Repository#_ignoring
[progit]: http://git-scm.com/book

## Folder structure

We support a collection of templates, organized in this way:

- [`Global`](./Global) contains templates for various editors, tools and
  operating systems that can be used in different situations. It is recommended
  that you either [add these to your global template](https://help.github.com/articles/ignoring-files/#create-a-global-gitignore)
  or merge these rules into your project-specific templates if you want to use
  them permanently.
- [`ecosystem`](./ecosystem) contains specialized templates coalescing around
  popular programming languages, but don't make sense to live in the mainstream
  templates. These should be added to your project-specific templates when you
  decide to adopt the framework or tool.

## Contributing guidelines

We’d love for you to help us improve this project. To help us keep this collection
high quality, we request that contributions adhere to the following guidelines.

- **Provide a link to the application or project’s homepage**. Unless it’s
  extremely popular, there’s a chance the maintainers don’t know about or use
  the language, framework, editor, app, or project your change applies to.

- **Provide links to documentation** supporting the change you’re making.
  Current, canonical documentation mentioning the files being ignored is best.
  If documentation isn’t available to support your change, do the best you can
  to explain what the files being ignored are for.

- **Explain why you’re making a change**. Even if it seems self-evident, please
  take a sentence or two to tell us why your change or addition should happen.
  It’s especially helpful to articulate why this change applies to *everyone*
  who works with the applicable technology, rather than just you or your team.

- **Please consider the scope of your change**. If your change is specific to a
  certain language or framework, then make sure the change is made to the
  template for that language or framework, rather than to the template for an
  editor, tool, or operating system.

- **Please only modify *one template* per pull request**. This helps keep pull
  requests and feedback focused on a specific project or technology.

In general, the more you can do to help us understand the change you’re making,
the more likely we’ll be to accept your contribution quickly.

If a template is mostly a list of files installed by a particular version of
some software (e.g. a PHP framework) then it's brittle and probably no more
helpful than a simple `ls`. If it's not possible to curate a small set of
useful rules, then the template might not be a good fit for this collection.

Please also understand that we can’t list every tool that ever existed.
Our aim is to curate a collection of the *most common and helpful* templates,
not to make sure we cover every project possible. If we choose not to
include your language, tool, or project, it’s not because it’s not awesome.

## Contributing workflow

Here’s how we suggest you go about proposing a change to this project:

1. [Fork this project][fork] to your account.
2. [Create a branch][branch] for the change you intend to make.
3. Make your changes to your fork.
4. [Send a pull request][pr] from your fork’s branch to our `master` branch.

Using the web-based interface to make changes is fine too, and will help you
by automatically forking the project and prompting to send a pull request too.

[fork]: https://help.github.com/articles/fork-a-repo/
[branch]: https://help.github.com/articles/creating-and-deleting-branches-within-your-repository
[pr]: https://help.github.com/articles/using-pull-requests/

## License

[CC0-1.0](./LICENSE).