Support ubuntu xenial plugins directory

Looks like the location of plugins directory has changed in
ubuntu-xenial. Update manifiest to support both xenial and trusty.

Update service to subscribe to /opt/meetbot this way we don't need to
know which plugins directory is needed when on xenial or trusty.

Change-Id: I70a06093bbb1119aed52627f2a4bf1d07b74cd5b
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

manifests/init.pp

@@ -1,5 +1,6 @@
 class meetbot {
-    include ::httpd
+  include ::httpd
+  include ::meetbot::params
 
   # The Apache mod_version module only needs to be enabled on Ubuntu 12.04
   # as it comes compiled and enabled by default on newer OS, including CentOS
@@ -59,7 +60,7 @@ class meetbot {
     require => User['meetbot'],
   }
 
-  file { '/usr/share/pyshared/supybot/plugins/MeetBot':
+  file { "${::meetbot::params::plugins_dir}/supybot/plugins/MeetBot":
     ensure  => directory,
     recurse => true,
     require => [
@@ -69,7 +70,7 @@ class meetbot {
     source  => '/opt/meetbot/MeetBot',
   }
 
-  file { '/usr/share/pyshared/supybot/plugins/Bugtracker':
+  file { "${::meetbot::params::plugins_dir}/supybot/plugins/Bugtracker":
     ensure  => directory,
     recurse => true,
     require => [

manifests/params.pp

@@ -0,0 +1,8 @@
+# Class: meetbot::params
+#
+class meetbot::params {
+  $plugins_dir = $::lsbdistcodename ? {
+    'xenial' => '/usr/lib/python2.7/dist-packages',
+    default  => '/usr/share/pyshared',
+  }
+}

manifests/site.pp

@@ -9,6 +9,7 @@ define meetbot::site(
   $vhost_name   = $::fqdn,
   $manage_index = true,
 ) {
+  include ::meetbot::params
 
   $varlib = "/var/lib/meetbot/${name}"
   $meetbot = "/srv/meetbot-${name}"
@@ -123,7 +124,7 @@ define meetbot::site(
       File["/etc/init/${name}-meetbot.conf"]
     ],
     subscribe => [
-      File['/usr/share/pyshared/supybot/plugins/MeetBot'],
+      File["${::meetbot::params::plugins_dir}/supybot/plugins/MeetBot"],
       File["${varlib}/ircmeeting"]
     ],
   }