# pin.pp # pin a release in apt, useful for unstable repositories define apt::pin( Optional[Enum['file', 'present', 'absent']] $ensure = present, Optional[String] $explanation = undef, Variant[Integer] $order = 50, Variant[String, Array] $packages = '*', Variant[Numeric, String] $priority = 0, Optional[String] $release = '', # a= Optional[String] $origin = '', Optional[String] $version = '', Optional[String] $codename = '', # n= Optional[String] $release_version = '', # v= Optional[String] $component = '', # c= Optional[String] $originator = '', # o= Optional[String] $label = '', # l= ) { if $explanation { $_explanation = $explanation } else { if defined('$caller_module_name') { # strict vars check $_explanation = "${caller_module_name}: ${name}" } else { $_explanation = ": ${name}" } } $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 $packages =~ Array { $packages_string = join($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') $headertmp = epp('apt/_header.epp') $pinpreftmp = epp('apt/pin.pref.epp', { 'name' => $name, 'pin_release' => $pin_release, 'release' => $release, 'codename' => $codename, 'release_version' => $release_version, 'component' => $component, 'originator' => $originator, 'label' => $label, 'version' => $version, 'origin' => $origin, 'explanation' => $_explanation, 'packages_string' => $packages_string, 'priority' => $priority, }) apt::setting { "pref-${file_name}": ensure => $ensure, priority => $order, content => "${headertmp}${pinpreftmp}", notify_update => false, } }