X-Git-Url: https://review.fuel-infra.org/gitweb?a=blobdiff_plain;f=manifests%2Fpin.pp;h=54961ec8ddfa7e43fae6109efc44daa414e5c89d;hb=5d7982dba0e6c5f31f320ebc2466a1811d283d51;hp=2899fce77a568fad54f418f6943d7c5678269da0;hpb=e5f2dfe294a563f5ebcec3d31949a81e1815db6e;p=puppet-modules%2Fpuppetlabs-apt.git

diff --git a/manifests/pin.pp b/manifests/pin.pp
index 2899fce..54961ec 100644
--- a/manifests/pin.pp
+++ b/manifests/pin.pp
@@ -2,20 +2,80 @@
 # pin a release in apt, useful for unstable repositories
 
 define apt::pin(
-  $packages = '*',
-  $priority = 0
+  $ensure          = present,
+  $explanation     = "${caller_module_name}: ${name}",
+  $order           = '',
+  $packages        = '*',
+  $priority        = 0,
+  $release         = '', # a=
+  $origin          = '',
+  $version         = '',
+  $codename        = '', # n=
+  $release_version = '', # v=
+  $component       = '', # c=
+  $originator      = '', # o=
+  $label           = ''  # l=
 ) {
-
   include apt::params
 
   $preferences_d = $apt::params::preferences_d
 
-  file { "${name}.pref":
-    ensure  => file,
-    path    => "${preferences_d}/${name}",
+  if $order != '' and !is_integer($order) {
+    fail('Only integers are allowed in the apt::pin order param')
+  }
+
+  $pin_release_array = [
+    $release,
+    $codename,
+    $release_version,
+    $component,
+    $originator,
+    $label]
+  $pin_release = join($pin_release_array, '')
+
+  # Read the manpage 'apt_preferences(5)', especially the chapter
+  # 'The Effect of APT Preferences' to understand the following logic
+  # and the difference between specific and general form
+  if is_array($packages) {
+    $packages_string = join($packages, ' ')
+  } else {
+    $packages_string = $packages
+  }
+
+  if $packages_string != '*' { # specific form
+    if ( $pin_release != '' and ( $origin != '' or $version != '' )) or
+      ( $version != '' and ( $pin_release != '' or $origin != '' )) {
+      fail('parameters release, origin, and version are mutually exclusive')
+    }
+  } else { # general form
+    if $version != '' {
+      fail('parameter version cannot be used in general form')
+    }
+    if ( $pin_release != '' and $origin != '' ) {
+      fail('parameters release and origin are mutually exclusive')
+    }
+  }
+
+
+  # According to man 5 apt_preferences:
+  # The files have either no or "pref" as filename extension
+  # and only contain alphanumeric, hyphen (-), underscore (_) and period
+  # (.) characters. Otherwise APT will print a notice that it has ignored a
+  # file, unless that file matches a pattern in the
+  # Dir::Ignore-Files-Silently configuration list - in which case it will
+  # be silently ignored.
+  $file_name = regsubst($title, '[^0-9a-z\-_\.]', '_', 'IG')
+
+  $path = $order ? {
+    ''      => "${preferences_d}/${file_name}.pref",
+    default => "${preferences_d}/${order}-${file_name}.pref",
+  }
+  file { "${file_name}.pref":
+    ensure  => $ensure,
+    path    => $path,
     owner   => root,
     group   => root,
     mode    => '0644',
-    content => "# ${name}\nPackage: ${packages}\nPin: release a=${name}\nPin-Priority: ${priority}",
+    content => template('apt/pin.pref.erb'),
   }
 }