<section xmlns="http://docbook.org/ns/docbook"
         xmlns:xlink="http://www.w3.org/1999/xlink"
         xml:id="sec-language-ruby">

<title>Ruby</title>

  <para>There currently is support to bundle applications that are packaged as Ruby gems. The utility "bundix" allows you to write a <filename>Gemfile</filename>, let bundler create a <filename>Gemfile.lock</filename>, and then convert
  this into a nix expression that contains all Gem dependencies automatically.</para>

  <para>For example, to package sensu, we did:</para>

<screen>
<![CDATA[$ cd pkgs/servers/monitoring
$ mkdir sensu
$ cat > Gemfile
source 'https://rubygems.org'
gem 'sensu'
$ bundler package --path /tmp/vendor/bundle
$ $(nix-build '<nixpkgs>' -A bundix)/bin/bundix
$ cat > default.nix
{ lib, bundlerEnv, ruby }:

bundlerEnv {
  name = "sensu-0.17.1";

  inherit ruby;
  gemfile = ./Gemfile;
  lockfile = ./Gemfile.lock;
  gemset = ./gemset.nix;

  meta = with lib; {
    description = "A monitoring framework that aims to be simple, malleable,
and scalable.";
    homepage    = http://sensuapp.org/;
    license     = with licenses; mit;
    maintainers = with maintainers; [ theuni ];
    platforms   = platforms.unix;
  };
}]]>
</screen>

<para>Please check in the <filename>Gemfile</filename>, <filename>Gemfile.lock</filename> and the <filename>gemset.nix</filename> so future updates can be run easily.
</para>

</section>

