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# CONTRIBUTING

The libuv project welcomes new contributors. This document will guide you
through the process.


### FORK

Fork the project [on GitHub](https://github.com/libuv/libuv) and check out
your copy.

```
$ git clone https://github.com/username/libuv.git
$ cd libuv
$ git remote add upstream https://github.com/libuv/libuv.git
```

Now decide if you want your feature or bug fix to go into the master branch
or the stable branch.  As a rule of thumb, bug fixes go into the stable branch
while new features go into the master branch.

The stable branch is effectively frozen; patches that change the libuv
API/ABI or affect the run-time behavior of applications get rejected.

In case of doubt, open an issue in the [issue tracker][], post your question
to the [libuv mailing list], or contact one of [project maintainers][] on [IRC][].

Especially do so if you plan to work on something big.  Nothing is more
frustrating than seeing your hard work go to waste because your vision
does not align with that of a project maintainers.


### BRANCH

Okay, so you have decided on the proper branch.  Create a feature branch
and start hacking:

```
$ git checkout -b my-feature-branch -t origin/v1.x
```

(Where v1.x is the latest stable branch as of this writing.)

### CODE

Please adhere to libuv's code style. In general it follows the conventions from
the [Google C/C++ style guide]. Some of the key points, as well as some
additional guidelines, are enumerated below.

* Code that is specific to unix-y platforms should be placed in `src/unix`, and
  declarations go into `include/uv-unix.h`.

* Source code that is Windows-specific goes into `src/win`, and related
  publicly exported types, functions and macro declarations should generally
  be declared in `include/uv-win.h`.

* Names should be descriptive and concise.

* All the symbols and types that libuv makes available publicly should be
  prefixed with `uv_` (or `UV_` in case of macros).

* Internal, non-static functions should be prefixed with `uv__`.

* Use two spaces and no tabs.

* Lines should be wrapped at 80 characters.

* Ensure that lines have no trailing whitespace, and use unix-style (LF) line
  endings.

* Use C89-compliant syntax. In other words, variables can only be declared at
  the top of a scope (function, if/for/while-block).

* When writing comments, use properly constructed sentences, including
  punctuation.

* When documenting APIs and/or source code, don't make assumptions or make
  implications about race, gender, religion, political orientation or anything
  else that isn't relevant to the project.

* Remember that source code usually gets written once and read often: ensure
  the reader doesn't have to make guesses. Make sure that the purpose and inner
  logic are either obvious to a reasonably skilled professional, or add a
  comment that explains it.


### COMMIT

Make sure git knows your name and email address:

```
$ git config --global user.name "J. Random User"
$ git config --global user.email "j.random.user@example.com"
```