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<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>
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