mirror of
https://github.com/correl/rebar.git
synced 2024-11-27 19:19:53 +00:00
149 lines
4.1 KiB
Markdown
149 lines
4.1 KiB
Markdown
rebar
|
|
=====
|
|
|
|
rebar is an Erlang build tool that makes it easy to compile and
|
|
test Erlang applications, port drivers and releases.
|
|
|
|
[](http://travis-ci.org/basho/rebar)
|
|
|
|
rebar is a self-contained Erlang script, so it's easy to distribute or even
|
|
embed directly in a project. Where possible, rebar uses standard Erlang/OTP
|
|
conventions for project structures, thus minimizing the amount of build
|
|
configuration work. rebar also provides dependency management, enabling
|
|
application writers to easily re-use common libraries from a variety of
|
|
locations (git, hg, etc).
|
|
|
|
Building
|
|
--------
|
|
|
|
Information on building and installing [Erlang/OTP](http://www.erlang.org)
|
|
can be found [here](https://github.com/erlang/otp/wiki/Installation)
|
|
([more info](https://github.com/erlang/otp/blob/master/INSTALL.md)).
|
|
|
|
### Dependencies
|
|
|
|
To build rebar you will need a working installation of Erlang R13B03 (or
|
|
later).
|
|
|
|
Should you want to clone the rebar repository, you will also require git.
|
|
|
|
#### Downloading
|
|
|
|
You can download a pre-built binary version of rebar from:
|
|
|
|
https://github.com/basho/rebar/wiki/rebar
|
|
|
|
#### Building rebar
|
|
|
|
```sh
|
|
$ git clone git://github.com/basho/rebar.git
|
|
$ cd rebar
|
|
$ ./bootstrap
|
|
Recompile: src/getopt
|
|
...
|
|
Recompile: src/rebar_utils
|
|
==> rebar (compile)
|
|
Congratulations! You now have a self-contained script called "rebar" in
|
|
your current working directory. Place this script anywhere in your path
|
|
and you can use rebar to build OTP-compliant apps.
|
|
```
|
|
|
|
|
|
Contributing to rebar
|
|
=====================
|
|
|
|
Pull requests and branching
|
|
---------------------------
|
|
|
|
Use one topic branch per pull request.
|
|
|
|
Do not commit to master in your fork.
|
|
|
|
Provide a clean branch without any merge commits from upstream.
|
|
|
|
Usually you should squash any intermediate commits into the original single commit.
|
|
|
|
Code style
|
|
----------
|
|
|
|
Do not introduce trailing whitespace.
|
|
|
|
Do not mix spaces and tabs.
|
|
|
|
Do not introduce lines longer than 80 characters.
|
|
|
|
[erlang-mode (emacs)](http://www.erlang.org/doc/man/erlang.el.html) indentation is preferred.
|
|
vi-only users are encouraged to give [Vim emulation](http://emacswiki.org/emacs/Evil)
|
|
([more info](https://gitorious.org/evil/pages/Home)) a try.
|
|
|
|
Writing Commit Messages
|
|
-----------------------
|
|
|
|
Structure your commit message like this:
|
|
|
|
<pre>
|
|
One line summary (less than 50 characters)
|
|
|
|
Longer description (wrap at 72 characters)
|
|
</pre>
|
|
|
|
### Summary
|
|
|
|
* Less than 50 characters
|
|
* What was changed
|
|
* Imperative present tense (fix, add, change)
|
|
* `Fix bug 123`
|
|
* `Add 'foobar' command`
|
|
* `Change default timeout to 123`
|
|
* No period
|
|
|
|
### Description
|
|
|
|
* Wrap at 72 characters
|
|
* Why, explain intention and implementation approach
|
|
* Present tense
|
|
|
|
### Atomicity
|
|
|
|
* Break up logical changes
|
|
* Make whitespace changes separately
|
|
|
|
Dialyzer and Tidier
|
|
-------------------
|
|
|
|
Before you submit a patch check for
|
|
[xref](http://www.erlang.org/doc/man/xref.html) and
|
|
[Dialyzer](http://www.erlang.org/doc/man/dialyzer.html)
|
|
warnings.
|
|
|
|
A successful run of ``make check`` looks like:
|
|
|
|
```sh
|
|
$ make check
|
|
Recompile: src/rebar_core
|
|
==> rebar (compile)
|
|
Command 'debug' not understood or not applicable
|
|
Congratulations! You now have a self-contained script called "rebar" in
|
|
your current working directory. Place this script anywhere in your path
|
|
and you can use rebar to build OTP-compliant apps.
|
|
==> rebar (xref)
|
|
make: [dialyzer_warnings] Error 2 (ignored)
|
|
```
|
|
|
|
[xref](http://www.erlang.org/doc/man/xref.html) and
|
|
[Dialyzer](http://www.erlang.org/doc/man/dialyzer.html) warnings are compared
|
|
against a set of safe-to-ignore warnings
|
|
found in
|
|
[dialyzer_reference](https://raw.github.com/tuncer/rebar/maint/dialyzer_reference)
|
|
and
|
|
[xref_reference](https://raw.github.com/tuncer/rebar/maint/xref_reference).
|
|
|
|
It is **strongly recommended** to check the code with
|
|
[Tidier](http://tidier.softlab.ntua.gr:20000/tidier/getstarted).
|
|
Select all transformation options and enable **automatic**
|
|
transformation.
|
|
If Tidier suggests a transformation apply the changes **manually**
|
|
to the source code.
|
|
Do not use the code from the tarball (*out.tgz*) as it will have
|
|
white-space changes
|
|
applied by Erlang's pretty-printer.
|