From c541046e86883f38a60c5d087e3d528695edad5e Mon Sep 17 00:00:00 2001
From: Marcel Haerry <haerry@puzzle.ch>
Date: Tue, 28 Sep 2010 18:18:11 +0200
Subject: improve brokengem define to accept also buildflags or being able to
 install multiple version

---
 manifests/brokengem.pp          | 113 +++++++++++++++++++++++++++++++++++-----
 manifests/brokengem/cachedir.pp |   4 ++
 2 files changed, 105 insertions(+), 12 deletions(-)
 create mode 100644 manifests/brokengem/cachedir.pp

diff --git a/manifests/brokengem.pp b/manifests/brokengem.pp
index 7fd6080..a585ff9 100644
--- a/manifests/brokengem.pp
+++ b/manifests/brokengem.pp
@@ -1,15 +1,104 @@
+# Installs gems that are slightly broken
+# As a name it expects the name of the gem.
+# If you want to want to install a certain version
+# you have to append the version to the gem name:
+#
+#    install a version of mime-types:
+#       rubygems::gem{'mime-types': }
+#
+#    install version 0.0.4 of ruby-net-ldap:
+#       rubygems::gem{'ruby-net-ldap-0.0.4': }
+#
+#    uninstall polygot gem (until no such gem is anymore installed):
+#       rubygems::gem{'polygot': ensure => absent }
+#
+#    uninstall ruby-net-ldap version 0.0.3
+#       rubygems::gem{'ruby-net-ldap-0.0.3': ensure => absent }
+#
+# You can also set your own buildlfags, which will then install
+# the gem in question by the gem command.
+#
+# You can also enforce to use the gem command to manage the gem
+# by setting provider to `exec`.
+#
 define rubygems::brokengem(
-    $source,
-    $ensure = 'present',
-) {
-    exec{"get-gem-$name":
-        command => "/usr/bin/wget -O /tmp/$name.gem $source",
-        creates => "/tmp/$name.gem",
-        before => Package[$name],
-    }
-    package{$name:
-        ensure => $ensure,
-        provider => gem,
-        source => "/tmp/$name.gem",
+  $source = 'absent',
+  $provider = 'default',
+  $buildflags = 'absent',
+  $ensure = 'present'
+){
+  require ::rubygems
+
+  if $name =~ /\-(\d|\.)+$/ {
+    $real_name = regsubst($name,'^(.*)-(\d|\.)+$','\1')
+    $gem_version = regsubst($name,'^(.*)-(\d+(\d|\.)+)$','\2')
+  } else {
+    $real_name = $name
+  }
+
+  if $source != 'absent' {
+    if $ensure != 'absent' {
+      require rubygems::brokengem::cachedir
+      exec{"get-gem-$name":
+        command => "/usr/bin/wget -O ${rubygems::brokengem::cachedir::dir}/$name.gem $source",
+        creates => "${rubygems::brokengem::cachedir::dir}/$name.gem",
+      }
+    } else {
+      file{"${rubygems::brokengem::cachedir::dir}/$name.gem":
+        ensure => 'absent';
+      }
     }
+  }
+
+  if ($buildflags != 'absent') or ($provider == 'exec') {
+    if $gem_version {
+        $gem_version_str = "-v ${gem_version}"
+        $gem_version_check_str = $gem_version
+    } else {
+        $gem_version_check_str = '.*'
+    }
+
+    if $ensure == 'present' {
+        $gem_cmd = 'install'
+    } else {
+        $gem_cmd = 'uninstall -x'
+    }
+
+    if $buildflags != 'absent' {
+      $buildflags_str = "-- --build-flags ${buildflags}"
+    } else {
+      $buildflags_str = ''
+    }
+
+    exec{"manage_gem_${name}":
+        command => "gem ${gem_cmd} ${real_name} ${gem_version_str} ${buildflags_str}",
+    }
+
+    $gem_cmd_check_str = "gem list | egrep -q '^${real_name} \\(${gem_version_check_str}\\)\$'"
+    if $ensure == 'present' {
+        Exec["manage_gem_${name}"]{
+           unless => $gem_cmd_check_str
+        }
+    } else {
+        Exec["manage_gem_${name}"]{
+           onlyif => $gem_cmd_check_str
+        }
+    }
+  } else {
+    package{"$real_name":
+      ensure => $ensure ? {
+        'absent' => $ensure,
+        default => $gem_version ? {
+          undef => $ensure,
+          default => $gem_version
+        }
+      },
+      provider => gem,
+    }
+    if $source != 'absent' {
+      Package["$name"]{
+        source => "${rubygems::brokengem::cachedir::dir}/$name.gem"
+      }
+    }
+  }
 }
diff --git a/manifests/brokengem/cachedir.pp b/manifests/brokengem/cachedir.pp
new file mode 100644
index 0000000..08f65f3
--- /dev/null
+++ b/manifests/brokengem/cachedir.pp
@@ -0,0 +1,4 @@
+class rubygems::brokengem::cachedir {
+  $dir = '/var/lib/puppet/modules/rubygems_cache'
+  modules_dir{'rubygems_cache': }
+}
-- 
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