refactor: simplify and remove inline content

Simplifications: make apt_conf_snippet repeat less code, make code that
generates sources.list more concise.

Remove all inline content in favor of templates and static files.
The ability to include sources for static files was needed for
the main 'preferences' file, so it was added to the preferences_snippet
define.

Signed-off-by: Gabriel Filion <lelutin@gmail.com>

6 files changed, 44 insertions, 43 deletions

diff --git a/templates/preferences.erb b/files/preferences
index ac71582..e893b7e 100644
--- a/templates/preferences.erb
+++ b/files/preferences
@@ -5,3 +5,4 @@ Pin-Priority: 1
 Package: *
 Pin: release a=testing
 Pin-Priority: 2
+
diff --git a/files/preferences_snippet.erb b/files/preferences_snippet.erb
new file mode 100644
index 0000000..4dfb701
--- /dev/null
+++ b/files/preferences_snippet.erb
@@ -0,0 +1,4 @@
+Package: <%= name %>
+Pin: release a=<%= release %>
+Pin-Priority: <%= priority %>
+
diff --git a/manifests/apt_conf_snippet.pp b/manifests/apt_conf_snippet.pp
index 77b88ae..c1cd884 100644
--- a/manifests/apt_conf_snippet.pp
+++ b/manifests/apt_conf_snippet.pp
@@ -10,20 +10,20 @@ define apt::apt_conf_snippet(
     fail("Only one of \$source or \$content must specified for apt_conf_snippet ${name}")
   }
 
+  file { "/etc/apt/apt.conf.d/${name}":
+    ensure => $ensure,
+    notify => Exec["refresh_apt"],
+    owner => root, group => 0, mode => 0600;
+  }
+
   if $source {
-    file { "/etc/apt/apt.conf.d/${name}":
-      ensure => $ensure,
+    File["/etc/apt/apt.conf.d/${name}"] {
       source => $source,
-      notify => Exec["refresh_apt"],
-      owner => root, group => 0, mode => 0600;
     }
   }
   else {
-    file { "/etc/apt/apt.conf.d/${name}":
-      ensure => $ensure,
+    File["/etc/apt/apt.conf.d/${name}"] {
       content => $content,
-      notify => Exec["refresh_apt"],
-      owner => root, group => 0, mode => 0600;
     }
   }
 }
diff --git a/manifests/init.pp b/manifests/init.pp
index 0e4bd5c..7d68303 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -19,23 +19,16 @@ class apt {
   }
 
   include lsb
-  case $custom_sources_list {
-    '': {
-      config_file {
-        # include main, security and backports
-        # additional sources should be included via the custom_sources_template
-        # define
-        "/etc/apt/sources.list":
-          content => template( "apt/$operatingsystem/sources.list.erb"),
-          require => Package['lsb'];
-      }
-    }
-    default: {
-      config_file { "/etc/apt/sources.list":
-        content => $custom_sources_list,
-        require => Package['lsb'];
-      }
-    }
+  config_file {
+    # include main, security and backports
+    # additional sources should be included via the custom_sources_template
+    # define
+    "/etc/apt/sources.list":
+      content => $custom_sources_list ? {
+        '' => template( "apt/$operatingsystem/sources.list.erb"),
+        default => $custom_sources_list
+      },
+      require => Package['lsb'];
   }
 
   # 01autoremove already present by default
@@ -109,4 +102,4 @@ class apt {
 
   # workaround for preseeded_package component
   file { [ "/var/cache", "/var/cache/local", "/var/cache/local/preseeding" ]: ensure => directory }
-}     
+}
diff --git a/manifests/preferences.pp b/manifests/preferences.pp
index 772b426..5be3bd0 100644
--- a/manifests/preferences.pp
+++ b/manifests/preferences.pp
@@ -4,18 +4,9 @@ class apt::preferences {
   $apt_preferences_dir = "${common::moduledir::module_dir_path}/apt/preferences"
   module_dir{'apt/preferences': }
   file{"${apt_preferences_dir}_header":
-    content => $custom_preferences ? {
-      '' => 'Package: *
-Pin: release a=unstable
-Pin-Priority: 1
-
-Package: *
-Pin: release a=testing
-Pin-Priority: 2
-
-',
-      default => $custom_preferences
-    },
+    source => ["puppet:///modules/site-apt/${fqdn}/preferences",
+               "puppet:///modules/site-apt/preferences",
+               "puppet:///modules/apt/preferences"]
   }
 
   concatenated_file{'/etc/apt/preferences':
diff --git a/manifests/preferences_snippet.pp b/manifests/preferences_snippet.pp
index 21dfe86..a723206 100644
--- a/manifests/preferences_snippet.pp
+++ b/manifests/preferences_snippet.pp
@@ -1,17 +1,29 @@
 define apt::preferences_snippet(
   $ensure = 'present',
+  $source = '',
   $release,
   $priority
 ){
   include apt::preferences
+
   file { "${apt::preferences::apt_preferences_dir}/${name}":
     ensure => $ensure,
-    content => "Package: ${name}
-Pin: release a=${release}
-Pin-Priority: ${priority}
-
-",
+    #TODO this template is somewhat limited
     notify => Exec["concat_${apt::preferences::apt_preferences_dir}"],
     owner => root, group => 0, mode => 0600;
   }
+
+  # This should really work in the same manner as sources_list and apt_conf
+  # snippets, but since the preferences.d directory cannot be used in Debian
+  # lenny, we can't generalize without going into ugly special-casing.
+  case $source {
+    '' =>
+      File["${apt::preferences::apt_preferences_dir/${name}"] {
+        content => template("apt/preferences_snippet.erb")
+      },
+    default =>
+      File["${apt::preferences::apt_preferences_dir/${name}"] {
+        source => $source
+      }
+  }
 }