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| # CONTRIBUTING | ||
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| The libuv project welcomes new contributors. This document will guide you | ||
| through the process. | ||
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| ### FORK | ||
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| Fork the project [on GitHub](https://github.com/joyent/libuv) and check out | ||
| your copy. | ||
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| ``` | ||
| $ git clone https://github.com/username/libuv.git | ||
| $ cd libuv | ||
| $ git remote add upstream https://github.com/joyent/libuv.git | ||
| ``` | ||
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| 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. | ||
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| The stable branch is effectively frozen; patches that change the libuv | ||
| API/ABI or affect the run-time behavior of applications get rejected. | ||
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| 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 | ||
| (@bnoordhuis, @piscisaureus, @indutny or @saghul) on [IRC][]. | ||
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| 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. | ||
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| ### BRANCH | ||
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| Okay, so you have decided on the proper branch. Create a feature branch | ||
| and start hacking: | ||
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| ``` | ||
| $ git checkout -b my-feature-branch -t origin/v0.10 | ||
| ``` | ||
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| (Where v0.10 is the latest stable branch as of this writing.) | ||
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| ### CODE | ||
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| 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. | ||
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| * Code that is specific to unix-y platforms should be placed in `src/unix`, and | ||
| declarations go into `src/uv-unix.h`. | ||
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| * 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`. | ||
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| * Names should be descriptive and concise. | ||
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| * All the symbols and types that libuv makes available publicly should be | ||
| prefixed with `uv_` (or `UV_` in case of macros). | ||
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| * Internal, non-static functions should be prefixed with `uv__`. | ||
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| * Use two spaces and no tabs. | ||
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| * Lines should be wrapped at 80 characters. | ||
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| * Ensure that lines have no trailing whitespace, and use unix-style (LF) line | ||
| endings. | ||
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| * Use C89-compliant syntax. In other words, variables can only be declared at | ||
| the top of a scope (function, if/for/while-block). | ||
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| * When writing comments, use properly constructed sentences, including | ||
| punctuation. | ||
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| * 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. | ||
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| * 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. | ||
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| ### COMMIT | ||
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| Make sure git knows your name and email address: | ||
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| ``` | ||
| $ git config --global user.name "J. Random User" | ||
| $ git config --global user.email "j.random.user@example.com" | ||
| ``` | ||
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| Writing good commit logs is important. A commit log should describe what | ||
| changed and why. Follow these guidelines when writing one: | ||
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| 1. The first line should be 50 characters or less and contain a short | ||
| description of the change prefixed with the name of the changed | ||
| subsystem (e.g. "net: add localAddress and localPort to Socket"). | ||
| 2. Keep the second line blank. | ||
| 3. Wrap all other lines at 72 columns. | ||
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| A good commit log looks like this: | ||
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| ``` | ||
| subsystem: explaining the commit in one line | ||
| Body of commit message is a few lines of text, explaining things | ||
| in more detail, possibly giving some background about the issue | ||
| being fixed, etc etc. | ||
| The body of the commit message can be several paragraphs, and | ||
| please do proper word-wrap and keep columns shorter than about | ||
| 72 characters or so. That way `git log` will show things | ||
| nicely even when it is indented. | ||
| ``` | ||
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| The header line should be meaningful; it is what other people see when they | ||
| run `git shortlog` or `git log --oneline`. | ||
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| Check the output of `git log --oneline files_that_you_changed` to find out | ||
| what subsystem (or subsystems) your changes touch. | ||
|
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| ### REBASE | ||
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| Use `git rebase` (not `git merge`) to sync your work from time to time. | ||
|
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| ``` | ||
| $ git fetch upstream | ||
| $ git rebase upstream/v0.10 # or upstream/master | ||
| ``` | ||
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| ### TEST | ||
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| Bug fixes and features should come with tests. Add your tests in the | ||
| `test/` directory. Tests also need to be registered in `test/test-list.h`. | ||
| Look at other tests to see how they should be structured (license boilerplate, | ||
| the way entry points are declared, etc.). | ||
|
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| ``` | ||
| $ make test | ||
| ``` | ||
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| Make sure that there are no test regressions. | ||
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| ### PUSH | ||
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| ``` | ||
| $ git push origin my-feature-branch | ||
| ``` | ||
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| Go to https://github.com/username/libuv and select your feature branch. Click | ||
| the 'Pull Request' button and fill out the form. | ||
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| Pull requests are usually reviewed within a few days. If there are comments | ||
| to address, apply your changes in a separate commit and push that to your | ||
| feature branch. Post a comment in the pull request afterwards; GitHub does | ||
| not send out notifications when you add commits. | ||
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| ### CONTRIBUTOR LICENSE AGREEMENT | ||
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| The current state of affairs is that, in order to get a patch accepted, you need | ||
| to sign Node.js's [contributor license agreement][]. You only need to do that | ||
| once. | ||
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| [issue tracker]: https://github.com/joyent/libuv/issues | ||
| [libuv mailing list]: http://groups.google.com/group/libuv | ||
| [IRC]: http://webchat.freelibuv.net/?channels=libuv | ||
| [Google C/C++ style guide]: http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml | ||
| [contributor license agreement]: http://nodejs.org/cla.html |
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