Replace debian_*() parser functions with facts

* Removes dependency on lsb-release and/or Facter >1.7
    (values are based on $::lsbdistcodename, when available)
* Simplifies maintenance: only lib/facter/util/* require updates as new
  releases are made

Caveats:
* apt::codename is removed; to override debian_* facts, set the
  FACTER_debian_codename environment variable for puppet
* If tracking unstable, make sure lsb-release is installed, as other
  methods can't tell between testing and unstable

28 files changed, 229 insertions, 101 deletions

diff --git a/README b/README
index 8333be2..e554837 100644
--- a/README
+++ b/README
@@ -17,9 +17,11 @@ Ubuntu support is lagging behind but not absent either.
 
 ! Upgrade Notice !
 
- * Several parser functions have been updated: you need to restart your puppet
-   master, otherwise some nodes may keep on using an old, cached version!
-   (https://docs.puppetlabs.com/guides/custom_functions.html#gotchas)
+ * The apt::codename parameter has been removed. In its place, the
+   debian_codename fact may be overridden via an environment variable. This
+   will affect all other debian_* facts, and achieve the same result.
+
+     FACTER_debian_codename=jessie puppet agent -t
 
  * If you were using custom 50unattended-upgrades.${::lsbdistcodename} in your
    site_apt, these are no longer supported. You should migrate to passing
@@ -97,8 +99,9 @@ Requirements
 
 This module needs:
 
-- the lsb module: git://labs.riseup.net/shared-lsb
-- the common module: git://labs.riseup.net/shared-common
+- the common module: https://gitlab.com/shared-puppet-modules-group/common
+- the lsb module: https://gitlab.com/shared-puppet-modules-group/lsb
+  (optional but recommended, required on Ubuntu)
 
 By default, on normal hosts, this module sets the configuration option
 DSelect::Clean to 'auto'. On virtual servers, the value is set by default to
@@ -225,15 +228,6 @@ Class parameters:
 
   class { 'apt': custom_sources_list => template('site_apt/sources.list') }
 
-* codename
-
-  Contains the codename ("squeeze", "wheezy", ...) of the client's release. While
-  these values come from lsb-release by default, this parameter can be set
-  manually, e.g. to enable forced upgrades. For example:
-
-     include apt::dist_upgrade
-     class { 'apt': codename => 'wheezy', notify => Exec['apt_dist-upgrade'] }
-
 * custom_key_dir
 
   If you have different apt-key files that you want to get added to your
diff --git a/lib/facter/debian_codename.rb b/lib/facter/debian_codename.rb
new file mode 100644
index 0000000..73eeea2
--- /dev/null
+++ b/lib/facter/debian_codename.rb
@@ -0,0 +1,40 @@
+begin
+  require 'facter/util/debian'
+end
+
+def version_to_codename(version)
+  if Facter::Util::Debian::CODENAMES.has_key?(version)
+    return Facter::Util::Debian::CODENAMES[version]
+  else
+    Facter.warn("Could not determine codename from version '#{version}'")
+  end
+end
+
+Facter.add(:debian_codename) do
+  has_weight 99
+  confine :operatingsystem => 'Debian'
+  setcode do
+    Facter.value('lsbdistcodename')
+  end
+end
+
+Facter.add(:debian_codename) do
+  has_weight 66
+  confine :operatingsystem => 'Debian'
+  setcode do
+    version_to_codename(Facter.value('operatingsystemmajrelease'))
+  end
+end
+
+Facter.add(:debian_codename) do
+  has_weight 33
+  confine :operatingsystem => 'Debian'
+  setcode do
+    debian_version = File.open('/etc/debian_version', &:readline)
+    if debian_version.match(/^\d+/)
+      version_to_codename(version_to_codename.scan(/^(\d+)/)[0][0])
+    elsif debian_version.match(/^[a-z]+\/(sid|unstable)/)
+      debian_version.scan(/^([a-z]+)\//)[0][0]
+    end
+  end
+end
diff --git a/lib/facter/debian_lts.rb b/lib/facter/debian_lts.rb
new file mode 100644
index 0000000..1c137e1
--- /dev/null
+++ b/lib/facter/debian_lts.rb
@@ -0,0 +1,14 @@
+begin
+  require 'facter/util/debian'
+end
+
+Facter.add(:debian_lts) do
+  confine :operatingsystem => 'Debian'
+  setcode do
+    if Facter::Util::Debian::LTS.include? Facter.value('debian_codename')
+      true
+    else
+      false
+    end
+  end
+end
diff --git a/lib/facter/debian_nextcodename.rb b/lib/facter/debian_nextcodename.rb
new file mode 100644
index 0000000..755a0e5
--- /dev/null
+++ b/lib/facter/debian_nextcodename.rb
@@ -0,0 +1,22 @@
+begin
+  require 'facter/util/debian'
+end
+
+def debian_codename_to_next(codename)
+  if codename == "sid"
+    return "experimental"
+  else
+    codenames = Facter::Util::Debian::CODENAMES.values.reverse
+    i = codenames.index(codename)
+    if i and i+1 < codenames.count
+      return codenames[i+1]
+    end
+  end
+end
+
+Facter.add(:debian_nextcodename) do
+  confine :operatingsystem => 'Debian'
+  setcode do
+    debian_codename_to_next(Facter.value('debian_codename'))
+  end
+end
diff --git a/lib/facter/debian_nextrelease.rb b/lib/facter/debian_nextrelease.rb
new file mode 100644
index 0000000..2a9c4f5
--- /dev/null
+++ b/lib/facter/debian_nextrelease.rb
@@ -0,0 +1,23 @@
+def debian_release_to_next(release)
+  releases = [
+    'oldoldoldstable',
+    'oldoldstable',
+    'oldstable',
+    'stable',
+    'testing',
+    'unstable',
+    'experimental',
+  ]
+  if releases.include? release
+    if releases.index(release)+1 < releases.count
+      return releases[releases.index(release)+1]
+    end
+  end
+end
+
+Facter.add(:debian_nextrelease) do
+  confine :operatingsystem => 'Debian'
+  setcode do
+    debian_release_to_next(Facter.value('debian_release'))
+  end
+end
diff --git a/lib/facter/debian_release.rb b/lib/facter/debian_release.rb
new file mode 100644
index 0000000..09e8eef
--- /dev/null
+++ b/lib/facter/debian_release.rb
@@ -0,0 +1,36 @@
+begin
+  require 'facter/util/debian'
+end
+
+def debian_codename_to_release(codename)
+  stable = Facter::Util::Debian::STABLE
+  versions = Facter::Util::Debian::CODENAMES.invert
+  release = nil
+  if codename == "sid"
+    release = "unstable"
+  elsif versions.has_key? codename
+    version = versions[codename].to_i
+    if version == stable
+      release = "stable"
+    elsif version < stable
+      release = "stable"
+      for i in version..stable - 1
+        release = "old" + release
+      end
+    elsif version == stable + 1
+      release = "testing"
+    end
+  end
+  if release.nil?
+    Facter.warn("Could not determine release from codename #{codename}!")
+  end
+  return release
+end
+
+Facter.add(:debian_release) do
+  has_weight 99
+  confine :operatingsystem => 'Debian'
+  setcode do
+    debian_codename_to_release(Facter.value('debian_codename'))
+  end
+end
diff --git a/lib/facter/ubuntu_codename.rb b/lib/facter/ubuntu_codename.rb
new file mode 100644
index 0000000..814fd94
--- /dev/null
+++ b/lib/facter/ubuntu_codename.rb
@@ -0,0 +1,8 @@
+Facter.add(:ubuntu_codename) do
+  confine :operatingsystem => 'Ubuntu'
+  setcode do
+    Facter.value('lsbdistcodename')
+  end
+end
+
+
diff --git a/lib/facter/ubuntu_nextcodename.rb b/lib/facter/ubuntu_nextcodename.rb
new file mode 100644
index 0000000..38b64ad
--- /dev/null
+++ b/lib/facter/ubuntu_nextcodename.rb
@@ -0,0 +1,18 @@
+begin
+  require 'facter/util/ubuntu'
+end
+
+def ubuntu_codename_to_next(codename)
+  codenames = Facter::Util::Ubuntu::CODENAMES
+  i = codenames.index(codename)
+  if i and i+1 < codenames.count
+    return codenames[i+1]
+  end
+end
+
+Facter.add(:ubuntu_nextcodename) do
+  confine :operatingsystem => 'Ubuntu'
+  setcode do
+    ubuntu_codename_to_next(Facter.value('ubuntu_codename'))
+  end
+end
diff --git a/lib/facter/util/debian.rb b/lib/facter/util/debian.rb
new file mode 100644
index 0000000..290c17b
--- /dev/null
+++ b/lib/facter/util/debian.rb
@@ -0,0 +1,18 @@
+module Facter
+  module Util
+    module Debian
+      STABLE = 8
+      CODENAMES = {
+        "5" => "lenny",
+        "6" => "squeeze",
+        "7" => "wheezy",
+        "8" => "jessie",
+        "9" => "stretch",
+        "10" => "buster",
+      }
+      LTS = [
+        "squeeze",
+      ]
+    end
+  end
+end
diff --git a/lib/facter/util/ubuntu.rb b/lib/facter/util/ubuntu.rb
new file mode 100644
index 0000000..1b2411a
--- /dev/null
+++ b/lib/facter/util/ubuntu.rb
@@ -0,0 +1,20 @@
+module Facter
+  module Util
+    module Ubuntu
+      CODENAMES = [
+        "lucid",
+        "maverick",
+        "natty",
+        "oneiric",
+        "precise",
+        "quantal",
+        "raring",
+        "saucy",
+        "trusty",
+        "utopic",
+        "vivid",
+        "wily",
+      ]
+    end
+  end
+end
diff --git a/lib/puppet/parser/functions/debian_nextcodename.rb b/lib/puppet/parser/functions/debian_nextcodename.rb
deleted file mode 100644
index ee59612..0000000
--- a/lib/puppet/parser/functions/debian_nextcodename.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-module Puppet::Parser::Functions
-  newfunction(:debian_nextcodename, :type => :rvalue) do |args|
-    case args[0]
-      when "squeeze" then "wheezy"
-      when "wheezy"  then "jessie"
-      when "jessie"  then "stretch"
-      when "stretch" then "sid"
-      when "sid"     then "experimental"
-      else "sid"
-    end
-  end
-end
diff --git a/lib/puppet/parser/functions/debian_nextrelease.rb b/lib/puppet/parser/functions/debian_nextrelease.rb
deleted file mode 100644
index 76c3e0d..0000000
--- a/lib/puppet/parser/functions/debian_nextrelease.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-module Puppet::Parser::Functions
-  newfunction(:debian_nextrelease, :type => :rvalue) do |args|
-    case args[0]
-      when 'oldstable' then 'stable'
-      when 'stable'    then 'testing'
-      when 'testing'   then 'unstable'
-      when 'unstable'  then 'experimental'
-      else 'unstable'
-    end
-  end
-end
diff --git a/lib/puppet/parser/functions/debian_release.rb b/lib/puppet/parser/functions/debian_release.rb
deleted file mode 100644
index 3f24ad0..0000000
--- a/lib/puppet/parser/functions/debian_release.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Puppet::Parser::Functions
-  newfunction(:debian_release, :type => :rvalue) do |args|
-    case args[0]
-      when 'squeeze'      then 'oldoldstable'
-      when 'wheezy'       then 'oldstable'
-      when 'jessie'       then 'stable'
-      when 'stretch'      then 'testing'
-      when 'sid'          then 'unstable'
-      when 'experimental' then 'experimental'
-      else 'testing'
-    end
-  end
-end
diff --git a/lib/puppet/parser/functions/debian_release_version.rb b/lib/puppet/parser/functions/debian_release_version.rb
deleted file mode 100644
index 32cafcb..0000000
--- a/lib/puppet/parser/functions/debian_release_version.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-module Puppet::Parser::Functions
-  newfunction(:debian_release_version, :type => :rvalue) do |args|
-    case args[0]
-      when 'squeeze'      then '6.0'
-      when 'wheezy'       then '7.0'
-      when 'jessie'       then '8.0'
-      when 'stretch'      then '9.0'
-      when 'buster'       then '10.0'
-      else ''
-    end
-  end
-end
diff --git a/manifests/apticron.pp b/manifests/apticron.pp
index 54d7b71..9c94f9c 100644
--- a/manifests/apticron.pp
+++ b/manifests/apticron.pp
@@ -1,6 +1,6 @@
 class apt::apticron(
   $ensure_version = 'installed',
-  $config = "apt/${::operatingsystem}/apticron_${::lsbdistcodename}.erb",
+  $config = "apt/${::operatingsystem}/apticron_${::debian_codename}.erb",
   $email = 'root',
   $diff_only = '1',
   $listchanges_profile = 'apticron',
diff --git a/manifests/init.pp b/manifests/init.pp
index 68856cc..5aaa13a 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -4,7 +4,6 @@
 # See LICENSE for the full license granted to you.
 
 class apt(
-  $codename = $apt::params::codename,
   $use_lts = $apt::params::use_lts,
   $use_volatile = $apt::params::use_volatile,
   $include_src = $apt::params::include_src,
@@ -41,21 +40,6 @@ class apt(
     require => undef,
   }
 
-  include lsb
-
-  # 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: {
-      $release = debian_release($codename)
-    }
-  }
-  $release_version = debian_release_version($codename)
-  $next_codename = debian_nextcodename($codename)
-  $next_release = debian_nextrelease($release)
-
   $sources_content = $custom_sources_list ? {
     ''      => template( "apt/${::operatingsystem}/sources.list.erb"),
     default => $custom_sources_list
diff --git a/manifests/listchanges.pp b/manifests/listchanges.pp
index 0c163ae..e64bb1b 100644
--- a/manifests/listchanges.pp
+++ b/manifests/listchanges.pp
@@ -1,6 +1,6 @@
 class apt::listchanges(
   $ensure_version = 'installed',
-  $config = "apt/${::operatingsystem}/listchanges_${::lsbdistcodename}.erb",
+  $config = "apt/${::operatingsystem}/listchanges_${::debian_codename}.erb",
   $frontend = 'mail',
   $email = 'root',
   $confirm = '0',
diff --git a/manifests/params.pp b/manifests/params.pp
index f977c27..da531db 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -1,12 +1,11 @@
 class apt::params () {
-  $codename = $::lsbdistcodename
   $use_lts = false
   $use_volatile = false
   $include_src = false
   $use_next_release = false
   $debian_url = 'http://httpredir.debian.org/debian/'
   $security_url = 'http://security.debian.org/'
-  $backports_url = $::lsbdistcodename ? {
+  $backports_url = $::debian_codename ? {
     'squeeze'  => 'http://backports.debian.org/debian-backports/',
     default => $debian_url
   }
diff --git a/manifests/preferences.pp b/manifests/preferences.pp
index 9ed24c1..6982ca0 100644
--- a/manifests/preferences.pp
+++ b/manifests/preferences.pp
@@ -2,8 +2,8 @@ class apt::preferences {
 
   $pref_contents = $apt::custom_preferences ? {
     ''      => $::operatingsystem ? {
-      'debian' => template("apt/${::operatingsystem}/preferences_${apt::codename}.erb"),
-      'ubuntu' => template("apt/${::operatingsystem}/preferences_${apt::codename}.erb"),
+      'debian' => template("apt/${::operatingsystem}/preferences_${::debian_codename}.erb"),
+      'ubuntu' => template("apt/${::operatingsystem}/preferences_${::ubuntu_codename}.erb"),
     },
     default => $apt::custom_preferences
   }
diff --git a/manifests/preseeded_package.pp b/manifests/preseeded_package.pp
index 9bca8b1..3ef0687 100644
--- a/manifests/preseeded_package.pp
+++ b/manifests/preseeded_package.pp
@@ -4,7 +4,7 @@ define apt::preseeded_package (
 ) {
   $seedfile = "/var/cache/local/preseeding/${name}.seeds"
   $real_content = $content ? {
-    ''      => template ( "site_apt/${::lsbdistcodename}/${name}.seeds" ),
+    ''      => template ( "site_apt/${::debian_codename}/${name}.seeds" ),
     default => $content
   }
 
diff --git a/templates/50unattended-upgrades.erb b/templates/50unattended-upgrades.erb
index 23c5c89..2afebfe 100644
--- a/templates/50unattended-upgrades.erb
+++ b/templates/50unattended-upgrades.erb
@@ -5,13 +5,13 @@ Unattended-Upgrade::Allowed-Origins {
   "${distro_id}:${distro_codename}-security";
   "${distro_id}:${distro_codename}-updates";
   "${distro_id}:${distro_codename}-backports";
-<% elsif scope.lookupvar('::operatingsystem') == 'Debian' and scope.lookupvar('::operatingsystemmajrelease') == 6 -%>
+<% elsif scope.lookupvar('::operatingsystem') == 'Debian' and scope.lookupvar('::debian_codename') == 'squeeze' -%>
 Unattended-Upgrade::Allowed-Origins {
   "${distro_id}:oldoldstable";
   "${distro_id}:squeeze-lts";
 <% else -%>
 Unattended-Upgrade::Origins-Pattern {
-  "origin=Debian,archive=<%= scope.lookupvar('::apt::release') %>,label=Debian-Security";
+  "origin=Debian,archive=<%= scope.lookupvar('::debian_release') %>,label=Debian-Security";
   "origin=Debian,archive=${distro_codename}-lts";
 <% end -%>
 };
diff --git a/templates/Debian/preferences_jessie.erb b/templates/Debian/preferences_jessie.erb
index 4f8e95c..0888abe 100644
--- a/templates/Debian/preferences_jessie.erb
+++ b/templates/Debian/preferences_jessie.erb
@@ -1,4 +1,4 @@
-Explanation: Debian <%= codename=scope.lookupvar('apt::codename') %>
+Explanation: Debian <%= codename=scope.lookupvar('::debian_codename') %>
 Package: *
 Pin: release o=Debian,n=<%= codename %>
 Pin-Priority: 990
diff --git a/templates/Debian/preferences_lenny.erb b/templates/Debian/preferences_lenny.erb
index 5c3c829..6500168 100644
--- a/templates/Debian/preferences_lenny.erb
+++ b/templates/Debian/preferences_lenny.erb
@@ -1,6 +1,6 @@
-Explanation: Debian <%= codename=scope.lookupvar('apt::codename') %>
+Explanation: Debian <%= codename=scope.lookupvar('::debian_codename') %>
 Package: *
-Pin: release o=Debian,a=<%= scope.lookupvar('apt::release') %>,v=<%= scope.lookupvar('apt::release_version') %>*
+Pin: release o=Debian,a=<%= scope.lookupvar('::debian_release') %>,v=5*
 Pin-Priority: 990
 
 Explanation: Debian backports
@@ -8,7 +8,7 @@ Package: *
 Pin: origin backports.debian.org
 Pin-Priority: 200
 
-Explanation: Debian <%= next_release=scope.lookupvar('apt::next_release') %>
+Explanation: Debian <%= next_release=scope.lookupvar('::debian_nextrelease') %>
 Package: *
 Pin: release o=Debian,a=<%= next_release %>
 Pin-Priority: 2
diff --git a/templates/Debian/preferences_squeeze.erb b/templates/Debian/preferences_squeeze.erb
index 838b3a1..885edc7 100644
--- a/templates/Debian/preferences_squeeze.erb
+++ b/templates/Debian/preferences_squeeze.erb
@@ -1,4 +1,4 @@
-Explanation: Debian <%= codename=scope.lookupvar('apt::codename') %>
+Explanation: Debian <%= codename=scope.lookupvar('::debian_codename') %>
 Package: *
 Pin: release o=Debian,n=<%= codename %>
 Pin-Priority: 990
@@ -13,7 +13,7 @@ Package: *
 Pin: release o=Debian,n=<%= codename %>-lts
 Pin-Priority: 990
 
-Explanation: Debian <%= next_codename=scope.lookupvar('apt::next_codename') %>
+Explanation: Debian <%= next_codename=scope.lookupvar('::debian_nextcodename') %>
 Package: *
 Pin: release o=Debian,n=<%= next_codename %>
 Pin-Priority: 2
diff --git a/templates/Debian/preferences_wheezy.erb b/templates/Debian/preferences_wheezy.erb
index 0cc0e5c..106108d 100644
--- a/templates/Debian/preferences_wheezy.erb
+++ b/templates/Debian/preferences_wheezy.erb
@@ -1,4 +1,4 @@
-Explanation: Debian <%= codename=scope.lookupvar('apt::codename') %>
+Explanation: Debian <%= codename=scope.lookupvar('::debian_codename') %>
 Package: *
 Pin: release o=Debian,n=<%= codename %>
 Pin-Priority: 990
diff --git a/templates/Debian/sources.list.erb b/templates/Debian/sources.list.erb
index d043b70..8629626 100644
--- a/templates/Debian/sources.list.erb
+++ b/templates/Debian/sources.list.erb
@@ -1,7 +1,7 @@
 # This file is managed by puppet
 # all local modifications will be overwritten
 
-### Debian current: <%= codename=scope.lookupvar('apt::codename') %>
+### Debian current: <%= codename=scope.lookupvar('::debian_codename') %>
 
 # basic
 deb <%= debian_url=scope.lookupvar('apt::debian_url') %> <%= codename %> <%= lrepos=scope.lookupvar('apt::real_repos') %>
@@ -10,7 +10,7 @@ deb-src <%= debian_url %> <%= codename %> <%= lrepos %>
 <% end -%>
 
 # security
-<% if ((release=scope.lookupvar('apt::release')) == "stable" || release == "oldstable") -%>
+<% if ((release=scope.lookupvar('::debian_release')) == "stable" || release == "oldstable") -%>
 deb <%= security_url=scope.lookupvar('apt::security_url') %> <%= codename %>/updates <%= lrepos %>
 <%   if include_src -%>
 deb-src <%= security_url %> <%= codename %>/updates <%= lrepos %>
@@ -43,7 +43,7 @@ deb-src <%= debian_url %> <%= codename %>-updates <%= lrepos %>
 
 <% if use_lts=scope.lookupvar('apt::use_lts') -%>
 # LTS
-<% if release != "oldoldstable" -%>
+<% if release_lts=scope.lookupvar('::debian_lts') == "false" -%>
 # There is no LTS archive for <%= release %>
 <% else -%>
 deb <%= debian_url %> <%= codename %>-lts <%= lrepos %>
@@ -54,7 +54,7 @@ deb-src <%= debian_url %> <%= codename %>-lts <%= lrepos %>
 <% end -%>
 
 <% if next_release=scope.lookupvar('apt::use_next_release') -%>
-### Debian next: <%= next_release=scope.lookupvar('apt::next_release') ; next_codename=scope.lookupvar('apt::next_codename') %>
+### Debian next: <%= next_release=scope.lookupvar('::debian_nextrelease') ; next_codename=scope.lookupvar('::debian_nextcodename') %>
 
 # basic
 deb <%= debian_url %> <%= next_codename %> <%= lrepos %>
diff --git a/templates/Ubuntu/preferences_maverick.erb b/templates/Ubuntu/preferences_maverick.erb
index 801ddd4..8e5481d 100644
--- a/templates/Ubuntu/preferences_maverick.erb
+++ b/templates/Ubuntu/preferences_maverick.erb
@@ -1,4 +1,4 @@
-Explanation: Ubuntu <%= codename=scope.lookupvar('apt::codename') %> security
+Explanation: Ubuntu <%= codename=scope.lookupvar('::ubuntu_codename') %> security
 Package: *
 Pin: release o=Ubuntu,a=<%= codename %>-security
 Pin-Priority: 990
@@ -18,7 +18,7 @@ Package: *
 Pin: release a=<%= codename %>-backports
 Pin-Priority: 200
 
-Explanation: Ubuntu <%= next_release=scope.lookupvar('apt::next_release') %>
+Explanation: Ubuntu <%= next_release=scope.lookupvar('::ubuntu_nextcodename') %>
 Package: *
 Pin: release o=Ubuntu,a=<%= next_release %>
 Pin-Priority: 2
diff --git a/templates/Ubuntu/sources.list.erb b/templates/Ubuntu/sources.list.erb
index 8d2585d..e68399b 100644
--- a/templates/Ubuntu/sources.list.erb
+++ b/templates/Ubuntu/sources.list.erb
@@ -1,7 +1,7 @@
 # This file is managed by puppet
 # all local modifications will be overwritten
 
-# basic <%= codename=scope.lookupvar('apt::codename') %>
+# basic <%= codename=scope.lookupvar('::ubuntu_codename') %>
 deb <%= ubuntu_url=scope.lookupvar('apt::ubuntu_url') %> <%= codename %> <%= lrepos=scope.lookupvar('apt::real_repos') %>
 <% if include_src=scope.lookupvar('apt::include_src') -%>
 deb-src <%= ubuntu_url %> <%= codename %> <%= lrepos %>