Install RubyGems from source on Ubuntu 10.04

Author: mitchellh

modules/ruby/manifests/binary/linux.pp

@@ -3,7 +3,23 @@
     ensure => installed,
   }
 
-  if $operatingsystem != 'Archlinux' {
+  if $lsbdistid == 'Ubuntu' and $lsbmajdistrelease == '10' {
+    # On Ubuntu 10 we need to install RubyGems from scratch, because
+    # the one they have in packages are too old. We just use a script
+    # for this because of laziness.
+    util::script { "install-rubygems":
+      path    => "/usr/local/bin/install_rubygems_from_source",
+      content => template("ruby/install_rubygems_from_source.sh.erb"),
+    }
+
+    exec { "/usr/local/bin/install_rubygems_from_source":
+      unless  => "test -f /usr/bin/gem",
+      require => [
+        Package["ruby"],
+        Util::Script["install-rubygems"],
+      ],
+    }
+  } elsif $operatingsystem != 'Archlinux' {
     package { "rubygems":
       ensure => installed,
     }
@@ -24,5 +40,11 @@
         ensure => installed,
       }
     }
+
+    'Ubuntu': {
+      package { "ruby-dev":
+        ensure => installed,
+      }
+    }
   }
 }

modules/ruby/templates/install_rubygems_from_source.sh.erb

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+#
+# This installs RubyGems from source.
+
+FILE="rubygems-1.8.25"
+
+cd /tmp
+wget http://production.cf.rubygems.org/rubygems/${FILE}.tgz
+tar xzvf ${FILE}.tgz
+cd ${FILE}
+sudo ruby setup.rb
+
+# Symlink to the `gem` binary
+sudo ln -s /usr/bin/gem1.8 /usr/bin/gem