Merge branch 'master' of git://labs.riseup.net/shared-apt

Conflicts:
	templates/Ubuntu/sources.list.erb

21 files changed, 249 insertions, 297 deletions

diff --git a/manifests/apt_conf.pp b/manifests/apt_conf.pp
index fe07546..d78fb9b 100644
--- a/manifests/apt_conf.pp
+++ b/manifests/apt_conf.pp
@@ -19,8 +19,10 @@ define apt::apt_conf(
   # apparently doesn't.
   file { "/etc/apt/apt.conf.d/${name}":
     ensure => $ensure,
-    owner => root, group => 0, mode => 0644,
-    notify => Exec["refresh_apt"],
+    owner  => root,
+    group  => 0,
+    mode   => '0644',
+    notify => Exec['refresh_apt'],
   }
 
   if $source {
diff --git a/manifests/apticron.pp b/manifests/apticron.pp
index 2fe8e44..54d7b71 100644
--- a/manifests/apticron.pp
+++ b/manifests/apticron.pp
@@ -1,54 +1,24 @@
-class apt::apticron {
-
-  case $apticron_ensure_version {
-    '': { $apticron_ensure_version = "present" }
-  }
-
-  case $apticron_config {
-    '': { $apticron_config = "apt/${operatingsystem}/apticron_${lsbdistcodename}.erb" }
-  }
-
-  case $apticron_email {
-    '': { $apticron_email = "root" }
-  }
-
-  case $apticron_diff_only {
-    '': { $apticron_diff_only = "1" }
-  }
-
-  case $apticron_listchanges_profile {
-    '': { $apticron_listchanges_profile = "apticron" }
-  }
-
-  case $apticron_system {
-    '': { $apticron_system = false }
-  }
-
-  case $apticron_ipaddressnum {
-    '': { $apticron_ipaddressnum = false }
-  }
-
-  case $apticron_ipaddresses {
-    '': { $apticron_ipaddresses = false }
-  }
-
-  case $apticron_notifyholds {
-    '': { $apticron_notifyholds = "0" }
-  }
-
-  case $apticron_notifynew {
-    '': { $apticron_notifynew = "0" }
-  }
-
-  case $apticron_customsubject {
-    '': { $apticron_customsubject = "" }
-  }
-  
-  package { apticron: ensure => $apticron_ensure_version }
-
-  file { "/etc/apticron/apticron.conf":
-    content => template($apticron_config),
-    mode => 0644, owner => root, group => root,
-    require => Package["apticron"];  
+class apt::apticron(
+  $ensure_version = 'installed',
+  $config = "apt/${::operatingsystem}/apticron_${::lsbdistcodename}.erb",
+  $email = 'root',
+  $diff_only = '1',
+  $listchanges_profile = 'apticron',
+  $system = false,
+  $ipaddressnum = false,
+  $ipaddresses = false,
+  $notifyholds = '0',
+  $notifynew = '0',
+  $customsubject = ''
+) {
+
+  package { 'apticron': ensure => $ensure_version }
+
+  file { '/etc/apticron/apticron.conf':
+    content => template($apt::apticron::config),
+    owner   => root,
+    group   => root,
+    mode    => '0644',
+    require => Package['apticron'];
   }
 }
diff --git a/manifests/cron/base.pp b/manifests/cron/base.pp
index 7ccfce6..39fc306 100644
--- a/manifests/cron/base.pp
+++ b/manifests/cron/base.pp
@@ -1,6 +1,6 @@
 class apt::cron::base {
 
-  package { cron-apt: ensure => installed }
+  package { 'cron-apt': ensure => installed }
 
   case $apt_cron_hours {
     '': {}
diff --git a/manifests/cron/dist_upgrade.pp b/manifests/cron/dist_upgrade.pp
index 1c8adb1..74403bb 100644
--- a/manifests/cron/dist_upgrade.pp
+++ b/manifests/cron/dist_upgrade.pp
@@ -4,20 +4,26 @@ class apt::cron::dist_upgrade inherits apt::cron::base {
 dist-upgrade -y -o APT::Get::Show-Upgraded=true -o 'DPkg::Options::=--force-confold'
 "
 
-  file { "/etc/cron-apt/action.d/3-download":
+  file { '/etc/cron-apt/action.d/3-download':
     ensure => absent,
   }
 
-  package { "apt-listbugs": ensure => absent }
+  package { 'apt-listbugs': ensure => absent }
 
-  config_file { "/etc/cron-apt/action.d/4-dist-upgrade":
+  file { '/etc/cron-apt/action.d/4-dist-upgrade':
     content => $action,
-    require => Package[cron-apt]
+    owner   => root,
+    group   => 0,
+    mode    => '0644',
+    require => Package[cron-apt];
   }
 
-  config_file { "/etc/cron-apt/config.d/MAILON":
+  file { '/etc/cron-apt/config.d/MAILON':
     content => "MAILON=upgrade\n",
-    require => Package[cron-apt]
+    owner   => root,
+    group   => 0,
+    mode    => '0644',
+    require => Package[cron-apt];
   }
 
 }
diff --git a/manifests/cron/download.pp b/manifests/cron/download.pp
index a27967d..4a19fec 100644
--- a/manifests/cron/download.pp
+++ b/manifests/cron/download.pp
@@ -3,19 +3,25 @@ class apt::cron::download inherits apt::cron::base {
   $action = "autoclean -y
 dist-upgrade -d -y -o APT::Get::Show-Upgraded=true
 "
-  
-  file { "/etc/cron-apt/action.d/4-dist-upgrade":
+
+  file { '/etc/cron-apt/action.d/4-dist-upgrade':
     ensure => absent,
   }
 
-  config_file { "/etc/cron-apt/action.d/3-download":
+  file { '/etc/cron-apt/action.d/3-download':
     content => $action,
-    require => Package[cron-apt]
+    require => Package[cron-apt],
+    owner   => root,
+    group   => 0,
+    mode    => '0644';
   }
 
-  config_file { "/etc/cron-apt/config.d/MAILON":
+  file { '/etc/cron-apt/config.d/MAILON':
     content => "MAILON=changes\n",
-    require => Package[cron-apt]
+    require => Package[cron-apt],
+    owner   => root,
+    group   => 0,
+    mode    => '0644';
   }
 
 }
diff --git a/manifests/dist_upgrade.pp b/manifests/dist_upgrade.pp
index 9e26769..bf78dcc 100644
--- a/manifests/dist_upgrade.pp
+++ b/manifests/dist_upgrade.pp
@@ -1,11 +1,18 @@
 class apt::dist_upgrade {
 
-  include apt::update
+  if $apt::disable_update == false {
+    include apt::update
+  }
+
+  $req = $apt::disable_update ? {
+    true    => undef,
+    default => Exec['apt_updated'],
+  }
 
   exec { 'apt_dist-upgrade':
-    command     => "/usr/bin/apt-get -q -y -o 'DPkg::Options::=--force-confold' dist-upgrade",
+    command     => '/usr/bin/apt-get -q -y -o \'DPkg::Options::=--force-confold\' dist-upgrade',
     refreshonly => true,
-    require     => Exec['apt_updated'],
+    require     => $req
   }
 
 }
diff --git a/manifests/dist_upgrade/initiator.pp b/manifests/dist_upgrade/initiator.pp
index 571cd51..d238988 100644
--- a/manifests/dist_upgrade/initiator.pp
+++ b/manifests/dist_upgrade/initiator.pp
@@ -4,15 +4,15 @@ class apt::dist_upgrade::initiator inherits apt::dist_upgrade {
   $initiator_abs = "${apt::apt_base_dir}/${initiator}"
 
   file { 'apt_upgrade_initiator':
-    mode     => 0644,
+    mode     => '0644',
     owner    => root,
     group    => 0,
-    path     => "${initiator_abs}",
+    path     => $initiator_abs,
     checksum => md5,
     source   => [
-                 "puppet:///modules/site_apt/${fqdn}/${initiator}",
-                 "puppet:///modules/site_apt/${initiator}",
-                 "puppet:///modules/apt/${initiator}",
+                  "puppet:///modules/site_apt/${::fqdn}/${initiator}",
+                  "puppet:///modules/site_apt/${initiator}",
+                  "puppet:///modules/apt/${initiator}",
                 ],
   }
 
diff --git a/manifests/dot_d_directories.pp b/manifests/dot_d_directories.pp
index 742aad4..37c3fc8 100644
--- a/manifests/dot_d_directories.pp
+++ b/manifests/dot_d_directories.pp
@@ -2,20 +2,20 @@ class apt::dot_d_directories {
 
   # watch .d directories and ensure they are present
   file {
-    "/etc/apt/apt.conf.d":
-      ensure => directory,
+    '/etc/apt/apt.conf.d':
+      ensure   => directory,
       checksum => mtime,
-      notify => Exec['refresh_apt'];
-    "/etc/apt/sources.list.d":
-      ensure => directory,
+      notify   => Exec['refresh_apt'];
+    '/etc/apt/sources.list.d':
+      ensure   => directory,
       checksum => mtime,
-      notify => Exec['refresh_apt'];
+      notify   => Exec['refresh_apt'];
   }
 
   exec {
     # "&& sleep 1" is workaround for older(?) clients
     'refresh_apt':
-      command => '/usr/bin/apt-get update && sleep 1',
+      command     => '/usr/bin/apt-get update && sleep 1',
       refreshonly => true,
   }
 
diff --git a/manifests/dselect.pp b/manifests/dselect.pp
index 44f0e19..6feeb9f 100644
--- a/manifests/dselect.pp
+++ b/manifests/dselect.pp
@@ -1,10 +1,10 @@
 class apt::dselect {
 
   # suppress annoying help texts of dselect
-  line { dselect_expert:
-      file => "/etc/dpkg/dselect.cfg",
-      line => "expert",
+  line { 'dselect_expert':
+      file => '/etc/dpkg/dselect.cfg',
+      line => 'expert',
   }
 
-  package { dselect: ensure => installed }
+  package { 'dselect': ensure => installed }
 }
diff --git a/manifests/init.pp b/manifests/init.pp
index 2ae691f..020c1cc 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -3,73 +3,48 @@
 # Copyright (C) 2007 David Schmitt <david@schmitt.edv-bus.at>
 # See LICENSE for the full license granted to you.
 
-class apt {
-
-  $use_volatile = $apt_volatile_enabled ? {
-    ''      => false,
-    default => $apt_volatile_enabled,
-  }
-
-  $include_src = $apt_include_src ? {
-    ''      => false,
-    default => $apt_include_src,
-  }
-
-  $use_next_release = $apt_use_next_release ? {
-    ''      => false,
-    default => $apt_use_next_release,
-  }
-
-  $debian_url = $apt_debian_url ? {
-    ''      => 'http://cdn.debian.net/debian/',
-    default => "${apt_debian_url}",
-  }
-  $security_url = $apt_security_url ? {
-    ''      => 'http://security.debian.org/',
-    default => "${apt_security_url}",
-  }
-  $backports_url = $apt_backports_url ? {
-    ''      => 'http://backports.debian.org/debian-backports/',
-    default => "${apt_backports_url}",
-  }
-  $volatile_url = $apt_volatile_url ? {
-    ''      => 'http://volatile.debian.org/debian-volatile/',
-    default => "${apt_volatile_url}",
-  }
-  $ubuntu_url = $apt_ubuntu_url ? {
-    ''      => 'http://archive.ubuntu.com/ubuntu',
-    default => "${apt_ubuntu_url}",
-  }
-  case $operatingsystem {
+class apt(
+  $codename = $::lsbdistcodename,
+  $use_volatile = false,
+  $include_src = false,
+  $use_next_release = false,
+  $debian_url = 'http://http.debian.net/debian/',
+  $security_url = 'http://security.debian.org/',
+  $backports_url = 'http://backports.debian.org/debian-backports/',
+  $volatile_url = 'http://volatile.debian.org/debian-volatile/',
+  $ubuntu_url = 'http://archive.ubuntu.com/ubuntu',
+  $repos = 'auto',
+  $custom_preferences = '',
+  $disable_update = false
+){
+  case $::operatingsystem {
     'debian': {
-      $repos = $apt_repos ? {
-        ''      => 'main contrib non-free',
-        default => "${apt_repos}",
+      $real_repos = $repos ? {
+        'auto'  => 'main contrib non-free',
+        default => $repos,
       }
     }
     'ubuntu': {
-      $repos = $apt_repos ? {
+      $real_repos = $repos ? {
         ''      => 'main restricted universe multiverse',
-        default => "${apt_repos}",
+        default => $repos,
       }
     }
   }
 
-  package { apt:
-    ensure => installed,
+  package { 'apt':
+    ensure  => installed,
     require => undef,
   }
 
   include lsb
 
-  # init $release, $next_release, $codename, $next_codename, $release_version
-  case $lsbdistcodename {
-    '': {
-      $codename = $lsbdistcodename
-      $release = $lsbdistrelease
+  # init $release, $next_release, $next_codename, $release_version
+  case $codename {
+    'n/a': {
+      fail("Unknown lsbdistcodename reported by facter: '$::lsbdistcodename', please fix this by setting this variable in your manifest.")
     }
     default: {
-      $codename = $lsbdistcodename
       $release = debian_release($codename)
     }
   }
@@ -77,40 +52,44 @@ class apt {
   $next_codename = debian_nextcodename($codename)
   $next_release = debian_nextrelease($release)
 
-  config_file {
+  $sources_content = $::custom_sources_list ? {
+    ''      => template( "apt/${::operatingsystem}/sources.list.erb"),
+    default => $::custom_sources_list
+  }
+  file {
     # include main, security and backports
     # additional sources should be included via the apt::sources_list define
-    "/etc/apt/sources.list":
-      content => $custom_sources_list ? {
-        '' => template( "apt/$operatingsystem/sources.list.erb"),
-        default => $custom_sources_list
-      },
+    '/etc/apt/sources.list':
+      content => $sources_content,
       require => Package['lsb'],
-      notify => Exec['refresh_apt'],
+      notify  => Exec['refresh_apt'],
+      owner   => root,
+      group   => 0,
+      mode    => '0644';
   }
 
-  apt_conf { "02show_upgraded":
-    source => [ "puppet:///modules/site_apt/${fqdn}/02show_upgraded",
-                "puppet:///modules/site_apt/02show_upgraded",
-                "puppet:///modules/apt/02show_upgraded" ]
+  apt_conf { '02show_upgraded':
+    source => [ "puppet:///modules/site_apt/${::fqdn}/02show_upgraded",
+                'puppet:///modules/site_apt/02show_upgraded',
+                'puppet:///modules/apt/02show_upgraded' ]
   }
 
-  if ( $virtual == "vserver" ) {
-    apt_conf { "03clean_vserver":
-      source => [ "puppet:///modules/site_apt/${fqdn}/03clean_vserver",
-                  "puppet:///modules/site_apt/03clean_vserver",
-                  "puppet:///modules/apt/03clean_vserver" ],
-      alias => "03clean";
+  if ( $::virtual == 'vserver' ) {
+    apt_conf { '03clean_vserver':
+      source => [ "puppet:///modules/site_apt/${::fqdn}/03clean_vserver",
+                  'puppet:///modules/site_apt/03clean_vserver',
+                  'puppet:///modules/apt/03clean_vserver' ],
+      alias => '03clean';
     }
   }
   else {
-    apt_conf { "03clean":
-      source => [ "puppet:///modules/site_apt/${fqdn}/03clean",
-                  "puppet:///modules/site_apt/03clean",
-                  "puppet:///modules/apt/03clean" ]
+    apt_conf { '03clean':
+      source => [ "puppet:///modules/site_apt/${::fqdn}/03clean",
+                  'puppet:///modules/site_apt/03clean',
+                  'puppet:///modules/apt/03clean' ]
     }
   }
-    
+
   case $custom_preferences {
     false: {
       include apt::preferences::absent
@@ -122,43 +101,38 @@ class apt {
     }
   }
 
-  # backward compatibility: upgrade from previous versions of this module.
-  file {
-    [ "/etc/apt/apt.conf.d/from_puppet", "/etc/apt/apt.conf.d/99from_puppet" ]:
-      ensure  => 'absent',
-      require => [ Apt_conf['02show_upgraded'], Apt_conf['03clean'] ];
-  }
-
   include apt::dot_d_directories
 
   ## This package should really always be current
-  package { "debian-archive-keyring": ensure => latest }
+  package { 'debian-archive-keyring': ensure => latest }
 
   # backports uses the normal archive key now
-  package { "debian-backports-keyring": ensure => absent }
+  package { 'debian-backports-keyring': ensure => absent }
 
   include common::moduledir
   $apt_base_dir = "${common::moduledir::module_dir_path}/apt"
-  modules_dir { apt: }
+  modules_dir { 'apt': }
 
-  if $custom_key_dir {
+  if $::custom_key_dir {
     file { "${apt_base_dir}/keys.d":
-      source => "$custom_key_dir",
+      source  => $::custom_key_dir,
       recurse => true,
-      mode => 0755, owner => root, group => root,
+      owner   => root,
+      group   => root,
+      mode    => '0755',
     }
-    exec { "custom_keys":
-      command => "find ${apt_base_dir}/keys.d -type f -exec apt-key add '{}' \\; && /usr/bin/apt-get update",
-      subscribe => File["${apt_base_dir}/keys.d"],
+    exec { 'custom_keys':
+      command     => "find ${apt_base_dir}/keys.d -type f -exec apt-key add '{}' \\; && /usr/bin/apt-get update",
+      subscribe   => File["${apt_base_dir}/keys.d"],
       refreshonly => true,
     }
     if $custom_preferences != false {
-      Exec["custom_keys"] {
-        before => Concat[apt_config],
+      Exec['custom_keys'] {
+        before => File['apt_config'],
       }
     }
   }
 
   # workaround for preseeded_package component
-  file { [ "/var/cache", "/var/cache/local", "/var/cache/local/preseeding" ]: ensure => directory }
+  file { [ '/var/cache', '/var/cache/local', '/var/cache/local/preseeding' ]: ensure => directory }
 }
diff --git a/manifests/listchanges.pp b/manifests/listchanges.pp
index 038d5c9..0c163ae 100644
--- a/manifests/listchanges.pp
+++ b/manifests/listchanges.pp
@@ -1,38 +1,19 @@
-class apt::listchanges {
-
-  case $apt_listchanges_version {
-    '': { $apt_listchanges_version = "present" }
-  }
-
-  case $apt_listchanges_config {
-    '': { $apt_listchanges_config = "apt/${operatingsystem}/listchanges_${lsbdistcodename}.erb" }
-  }
-
-  case $apt_listchanges_frontend {
-    '': { $apt_listchanges_frontend = "mail" }
-  }
-
-  case $apt_listchanges_email {
-    '': { $apt_listchanges_email = "root" }
-  }
-
-  case $apt_listchanges_confirm {
-    '': { $apt_listchanges_confirm = "0" }
-  }
-
-  case $apt_listchanges_saveseen {
-    '': { $apt_listchanges_saveseen = "/var/lib/apt/listchanges.db" }
-  }
-
-  case $apt_listchanges_which {
-    '': { $apt_listchanges_which = "both" }
-  }
-
-  package { apt-listchanges: ensure => $apt_listchanges_ensure_version }
-  
-  file { "/etc/apt/listchanges.conf":
-    content => template($apt_listchanges_config),
-    mode => 0644, owner => root, group => root,
-    require => Package["apt-listchanges"];
+class apt::listchanges(
+  $ensure_version = 'installed',
+  $config = "apt/${::operatingsystem}/listchanges_${::lsbdistcodename}.erb",
+  $frontend = 'mail',
+  $email = 'root',
+  $confirm = '0',
+  $saveseen = '/var/lib/apt/listchanges.db',
+  $which = 'both'
+){
+  package { 'apt-listchanges': ensure => $ensure_version }
+
+  file { '/etc/apt/listchanges.conf':
+    content => template($apt::listchanges::config),
+    owner   => root,
+    group   => root,
+    mode    => '0644',
+    require => Package['apt-listchanges'];
   }
 }
diff --git a/manifests/preferences.pp b/manifests/preferences.pp
index f188149..9ed24c1 100644
--- a/manifests/preferences.pp
+++ b/manifests/preferences.pp
@@ -1,22 +1,20 @@
 class apt::preferences {
 
-  concat::fragment{"apt_preferences_header":
-    content => $custom_preferences ? {
-      '' => $operatingsystem ? {
-        'debian' => template("apt/${operatingsystem}/preferences_${codename}.erb"),
-        'ubuntu' => template("apt/${operatingsystem}/preferences_${codename}.erb"),
-      },
-      default => $custom_preferences
+  $pref_contents = $apt::custom_preferences ? {
+    ''      => $::operatingsystem ? {
+      'debian' => template("apt/${::operatingsystem}/preferences_${apt::codename}.erb"),
+      'ubuntu' => template("apt/${::operatingsystem}/preferences_${apt::codename}.erb"),
     },
-    order => 00,
-    target => '/etc/apt/preferences',
+    default => $apt::custom_preferences
   }
 
-  concat{'/etc/apt/preferences':
-    alias => apt_config,
+  file { '/etc/apt/preferences':
+    ensure  => present,
+    alias   => 'apt_config',
     # only update together
-    require => File["/etc/apt/sources.list"],
-    owner => root, group => 0, mode => 0644;
+    content => $pref_contents,
+    require => File['/etc/apt/sources.list'],
+    owner   => root, group => 0, mode => '0644';
   }
 
 }
diff --git a/manifests/preferences/absent.pp b/manifests/preferences/absent.pp
index 0e96119..f32e030 100644
--- a/manifests/preferences/absent.pp
+++ b/manifests/preferences/absent.pp
@@ -2,5 +2,6 @@ class apt::preferences::absent {
 
   file { '/etc/apt/preferences':
     ensure => absent,
+    alias  => 'apt_config',
   }
 }
diff --git a/manifests/preferences_snippet.pp b/manifests/preferences_snippet.pp
index 6a8e6bc..0bff85c 100644
--- a/manifests/preferences_snippet.pp
+++ b/manifests/preferences_snippet.pp
@@ -1,11 +1,11 @@
-define apt::preferences_snippet(
+define apt::preferences_snippet (
+  $priority,
   $package = false,
   $ensure = 'present',
   $source = '',
   $release = '',
-  $pin = '',
-  $priority )
-{
+  $pin = ''
+) {
 
   $real_package = $package ? {
     false   => $name,
@@ -13,21 +13,19 @@ define apt::preferences_snippet(
   }
 
   if $custom_preferences == false {
-    fail("Trying to define a preferences_snippet with \$custom_preferences set to false.")
+    fail('Trying to define a preferences_snippet with $custom_preferences set to false.')
   }
 
   if !$pin and !$release {
-    fail("apt::preferences_snippet requires one of the 'pin' or 'release' argument to be set")
+    fail('apt::preferences_snippet requires one of the \'pin\' or \'release\' argument to be set')
   }
   if $pin and $release {
-    fail("apt::preferences_snippet requires either a 'pin' or 'release' argument, not both")
+    fail('apt::preferences_snippet requires either a \'pin\' or \'release\' argument, not both')
   }
 
-  include apt::preferences
-
-  concat::fragment{"apt_preference_${name}":
+  file { "/etc/apt/preferences.d/${name}":
     ensure => $ensure,
-    target => '/etc/apt/preferences',
+    owner  => root, group => 0, mode => '0644';
   }
 
   # This should really work in the same manner as sources_list and apt_conf
@@ -37,19 +35,19 @@ define apt::preferences_snippet(
     '': {
       case $release {
         '': {
-          Concat::Fragment["apt_preference_${name}"]{
-            content => template("apt/preferences_snippet.erb")
+          File["/etc/apt/preferences.d/${name}"]{
+            content => template('apt/preferences_snippet.erb')
           }
         }
         default: {
-          Concat::Fragment["apt_preference_${name}"]{
-            content => template("apt/preferences_snippet_release.erb")
+          File["/etc/apt/preferences.d/${name}"]{
+            content => template('apt/preferences_snippet_release.erb')
           }
         }
       }
     }
     default: {
-      Concat::Fragment["apt_preference_${name}"]{
+      File["/etc/apt/preferences.d/${name}"]{
         source => $source
       }
     }
diff --git a/manifests/preseeded_package.pp b/manifests/preseeded_package.pp
index d831934..9bca8b1 100644
--- a/manifests/preseeded_package.pp
+++ b/manifests/preseeded_package.pp
@@ -1,18 +1,21 @@
-define apt::preseeded_package ($content = "", $ensure = "installed") {
-  $seedfile = "/var/cache/local/preseeding/$name.seeds"
-  $real_content = $content ? { 
-    ""      => template ( "site_apt/$lsbdistcodename/$name.seeds" ),
+define apt::preseeded_package (
+  $ensure = 'installed',
+  $content = ''
+) {
+  $seedfile = "/var/cache/local/preseeding/${name}.seeds"
+  $real_content = $content ? {
+    ''      => template ( "site_apt/${::lsbdistcodename}/${name}.seeds" ),
     default => $content
-  }   
+  }
 
   file { $seedfile:
     content => $real_content,
-    mode => 0600, owner => root, group => root,
-  }   
+    mode    => '0600', owner => root, group => root,
+  }
 
   package { $name:
-    ensure => $ensure,
+    ensure       => $ensure,
     responsefile => $seedfile,
-    require => File[$seedfile],
-  }   
-}  
+    require      => File[$seedfile],
+  }
+}
diff --git a/manifests/proxy_client.pp b/manifests/proxy_client.pp
index 23e9bd1..9ba79f2 100644
--- a/manifests/proxy_client.pp
+++ b/manifests/proxy_client.pp
@@ -1,16 +1,9 @@
-class apt::proxy_client {
+class apt::proxy_client(
+  $proxy = 'http://localhost',
+  $port = '3142',
+){
 
-  $real_apt_proxy = $apt_proxy ? {
-    "" => "http://localhost",
-    default => $apt_proxy
-  }
-
-  $real_apt_proxy_port = $apt_proxy_port ? {
-    "" => "3142",
-    default => $apt_proxy_port
-  }
-
-  apt_conf { "20proxy":
-    content => template("apt/20proxy.erb"),
+  apt_conf { '20proxy':
+    content => template('apt/20proxy.erb'),
   }
 }
diff --git a/manifests/reboot_required_notify.pp b/manifests/reboot_required_notify.pp
index 3603aa2..722e8a5 100644
--- a/manifests/reboot_required_notify.pp
+++ b/manifests/reboot_required_notify.pp
@@ -3,7 +3,7 @@ class apt::reboot_required_notify {
   # This package installs the script that created /var/run/reboot-required*.
   # This script (/usr/share/update-notifier/notify-reboot-required) is
   # triggered e.g. by kernel packages.
-  package { update-notifier-common:
+  package { 'update-notifier-common':
     ensure => installed,
   }
 
diff --git a/manifests/sources_list.pp b/manifests/sources_list.pp
index 499116d..3367f83 100644
--- a/manifests/sources_list.pp
+++ b/manifests/sources_list.pp
@@ -1,14 +1,16 @@
 define apt::sources_list (
   $ensure = 'present',
   $source = '',
-  $content = undef )
-{
+  $content = undef
+) {
 
-  if $source == '' and $content == undef {
-    fail("One of \$source or \$content must be specified for apt_sources_snippet ${name}")
-  }
-  if $source != '' and $content != undef {
-    fail("Only one of \$source or \$content must specified for apt_sources_snippet ${name}")
+  if $ensure == 'present' {
+    if $source == '' and $content == undef {
+      fail("One of \$source or \$content must be specified for apt_sources_snippet ${name}")
+    }
+    if $source != '' and $content != undef {
+      fail("Only one of \$source or \$content must specified for apt_sources_snippet ${name}")
+    }
   }
 
   include apt::dot_d_directories
@@ -18,7 +20,7 @@ define apt::sources_list (
   # apparently doesn't.
   file { "/etc/apt/sources.list.d/${name}":
     ensure => $ensure,
-    owner => root, group => 0, mode => 0644,
+    owner  => root, group => 0, mode => '0644',
     notify => Exec['refresh_apt'],
   }
 
diff --git a/manifests/unattended_upgrades.pp b/manifests/unattended_upgrades.pp
index 23d9bd7..4f1eb20 100644
--- a/manifests/unattended_upgrades.pp
+++ b/manifests/unattended_upgrades.pp
@@ -1,21 +1,22 @@
 class apt::unattended_upgrades {
 
   package { 'unattended-upgrades':
-    ensure => present,
+    ensure  => present,
     require => undef,
   }
 
-  apt_conf { "50unattended-upgrades":
-    source  => ["puppet:///modules/site_apt/$lsbdistcodename/50unattended-upgrades",
-		"puppet:///modules/site_apt/50unattended-upgrades",
-		"puppet:///modules/apt/$lsbdistcodename/50unattended-upgrades",
-		"puppet:///modules/apt/50unattended-upgrades" ],
+  apt_conf { '50unattended-upgrades':
+    source  => [
+                "puppet:///modules/site_apt/${::lsbdistcodename}/50unattended-upgrades",
+                'puppet:///modules/site_apt/50unattended-upgrades',
+                "puppet:///modules/apt/${::lsbdistcodename}/50unattended-upgrades",
+                'puppet:///modules/apt/50unattended-upgrades' ],
     require => Package['unattended-upgrades'],
   }
 
-  if $custom_preferences != false {
-    Apt_conf["50unattended-upgrades"] {
-      before => Concat[apt_config],
+  if $apt::custom_preferences != false {
+    Apt_conf['50unattended-upgrades'] {
+      before => File['apt_config'],
     }
   }
 
diff --git a/manifests/update.pp b/manifests/update.pp
index ae992f4..3f45125 100644
--- a/manifests/update.pp
+++ b/manifests/update.pp
@@ -2,11 +2,12 @@ class apt::update {
 
   exec { 'update_apt':
     command => '/usr/bin/apt-get update && /usr/bin/apt-get autoclean',
-    require => [ File['/etc/apt/apt.conf.d', '/etc/apt/preferences' ],
-                 Config_file['/etc/apt/sources.list'] ],
+    require => [
+                File['/etc/apt/apt.conf.d', '/etc/apt/preferences' ],
+                File['/etc/apt/sources.list'] ],
     loglevel => info,
     # Another Semaphor for all packages to reference
-    alias => "apt_updated"
+    alias => 'apt_updated'
   }
 
 }
diff --git a/manifests/upgrade_package.pp b/manifests/upgrade_package.pp
index 9202624..d607150 100644
--- a/manifests/upgrade_package.pp
+++ b/manifests/upgrade_package.pp
@@ -1,6 +1,10 @@
-define apt::upgrade_package ($version = "") {
+define apt::upgrade_package (
+  $version = ''
+) {
 
-  include apt::update
+  if $apt::disable_update == false {
+    include apt::update
+  }
 
   $version_suffix = $version ? {
     ''       => '',
@@ -10,24 +14,29 @@ define apt::upgrade_package ($version = "") {
 
   if !defined(Package['apt-show-versions']) {
     package { 'apt-show-versions':
-      ensure => installed,
+      ensure  => installed,
       require => undef,
     }
   }
 
   if !defined(Package['dctrl-tools']) {
     package { 'dctrl-tools':
-      ensure => installed,
+      ensure  => installed,
       require => undef,
     }
   }
 
+  $req = $apt::disable_update ? {
+    true    => Package['apt-show-versions', 'dctrl-tools'],
+    default => [
+                Exec['apt_updated'],
+                Package['apt-show-versions', 'dctrl-tools']
+              ],
+  }
+
   exec { "apt-get -q -y -o 'DPkg::Options::=--force-confold' install ${name}${version_suffix}":
-    onlyif => [ "grep-status -F Status installed -a -P $name -q", "apt-show-versions -u $name | grep -q upgradeable" ],
-    require => [
-      Exec['apt_updated'],
-      Package['apt-show-versions', 'dctrl-tools'],
-    ],
+    onlyif  => [ "grep-status -F Status installed -a -P $name -q", "apt-show-versions -u $name | grep -q upgradeable" ],
+    require => $req
   }
 
 }