mirror of
https://github.com/correl/rebar.git
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149 lines
4.4 KiB
Markdown
149 lines
4.4 KiB
Markdown
rebar
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=====
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rebar is an Erlang build tool that makes it easy to compile and test Erlang
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applications, port drivers and releases.
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[](http://travis-ci.org/rebar/rebar)
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rebar is a self-contained Erlang script, so it's easy to distribute or even
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embed directly in a project. Where possible, rebar uses standard Erlang/OTP
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conventions for project structures, thus minimizing the amount of build
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configuration work. rebar also provides dependency management, enabling
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application writers to easily re-use common libraries from a variety of
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locations (git, hg, etc).
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Building
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--------
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Information on building and installing [Erlang/OTP](http://www.erlang.org) can
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be found [here](https://github.com/erlang/otp/wiki/Installation) ([more
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info](https://github.com/erlang/otp/blob/master/INSTALL.md)).
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### Dependencies
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To build rebar you will need a working installation of Erlang R13B03 (or later).
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Should you want to clone the rebar repository, you will also require git.
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#### Downloading
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You can download a pre-built binary version of rebar from:
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https://github.com/rebar/rebar/wiki/rebar
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#### Building rebar
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```sh
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$ git clone git://github.com/rebar/rebar.git
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$ cd rebar
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$ ./bootstrap
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Recompile: src/getopt
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...
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Recompile: src/rebar_utils
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==> rebar (compile)
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Congratulations! You now have a self-contained script called "rebar" in
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your current working directory. Place this script anywhere in your path
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and you can use rebar to build OTP-compliant apps.
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```
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Contributing to rebar
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=====================
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Pull requests and branching
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---------------------------
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Use one topic branch per pull request.
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Do not commit to master in your fork.
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Provide a clean branch without any merge commits from upstream.
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Usually you should squash any intermediate commits into the original single commit.
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Code style
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----------
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Do not introduce trailing whitespace.
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Do not mix spaces and tabs.
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Do not introduce lines longer than 80 characters.
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[erlang-mode (emacs)](http://www.erlang.org/doc/man/erlang.el.html) indentation
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is preferred. vi-only users are encouraged to give [Vim
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emulation](http://emacswiki.org/emacs/Evil) ([more
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info](https://gitorious.org/evil/pages/Home)) a try.
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Writing Commit Messages
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-----------------------
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Structure your commit message like this:
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<pre>
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One line summary (less than 50 characters)
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Longer description (wrap at 72 characters)
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</pre>
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### Summary
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* Less than 50 characters
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* What was changed
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* Imperative present tense (fix, add, change)
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* `Fix bug 123`
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* `Add 'foobar' command`
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* `Change default timeout to 123`
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* No period
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### Description
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* Wrap at 72 characters
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* Why, explain intention and implementation approach
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* Present tense
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### Atomicity
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* Break up logical changes
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* Make whitespace changes separately
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Run checks
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----------
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Before you submit a patch, run ``make check`` to execute the test suite and
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check for [xref](http://www.erlang.org/doc/man/xref.html) and
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[Dialyzer](http://www.erlang.org/doc/man/dialyzer.html) warnings. You may have
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to run ``make clean`` first.
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[Dialyzer](http://www.erlang.org/doc/man/dialyzer.html) warnings are compared
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against a set of safe-to-ignore warnings found in
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[dialyzer_reference](https://raw.github.com/rebar/rebar/master/dialyzer_reference).
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[xref](http://www.erlang.org/doc/man/xref.html) is run with [custom
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queries](https://raw.github.com/rebar/rebar/master/rebar.config) to suppress
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safe-to-ignore warnings.
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Community and Resources
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-----------------------
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In case of problems that cannot be solved through documentation or examples, you
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may want to try to contact members of the community for help. The community is
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also where you want to go for questions about how to extend rebar, fill in bug
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reports, and so on.
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The main place to go for questions is the [rebar mailing
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list](http://lists.basho.com/pipermail/rebar_lists.basho.com/). If you need
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quick feedback, you can try the #rebar channel on
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[irc.freenode.net](http://freenode.net). Be sure to check the
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[wiki](https://github.com/rebar/rebar/wiki) first, just to be sure you're not
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asking about things with well known answers.
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For bug reports, roadmaps, and issues, visit the [github issues
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page](https://github.com/rebar/rebar/issues).
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General rebar community resources and links:
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- [Rebar Mailing List](http://lists.basho.com/pipermail/rebar_lists.basho.com/)
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- #rebar on [irc.freenode.net](http://freenode.net/)
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- [wiki](https://github.com/rebar/rebar/wiki)
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- [issues](https://github.com/rebar/rebar/issues)
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