2 # pin a release in apt, useful for unstable repositories
6 $explanation = "${caller_module_name}: ${name}",
14 $release_version = '', # v=
16 $originator = '', # o=
19 $preferences_d = $apt::params::preferences_d
21 if $order != '' and !is_integer($order) {
22 fail('Only integers are allowed in the apt::pin order param')
25 $pin_release_array = [
32 $pin_release = join($pin_release_array, '')
34 # Read the manpage 'apt_preferences(5)', especially the chapter
35 # 'The Effect of APT Preferences' to understand the following logic
36 # and the difference between specific and general form
37 if is_array($packages) {
38 $packages_string = join($packages, ' ')
40 $packages_string = $packages
43 if $packages_string != '*' { # specific form
44 if ( $pin_release != '' and ( $origin != '' or $version != '' )) or
45 ( $version != '' and ( $pin_release != '' or $origin != '' )) {
46 fail('parameters release, origin, and version are mutually exclusive')
48 } else { # general form
50 fail('parameter version cannot be used in general form')
52 if ( $pin_release != '' and $origin != '' ) {
53 fail('parameters release and origin are mutually exclusive')
58 # According to man 5 apt_preferences:
59 # The files have either no or "pref" as filename extension
60 # and only contain alphanumeric, hyphen (-), underscore (_) and period
61 # (.) characters. Otherwise APT will print a notice that it has ignored a
62 # file, unless that file matches a pattern in the
63 # Dir::Ignore-Files-Silently configuration list - in which case it will
64 # be silently ignored.
65 $file_name = regsubst($title, '[^0-9a-z\-_\.]', '_', 'IG')
68 '' => "${preferences_d}/${file_name}.pref",
69 default => "${preferences_d}/${order}-${file_name}.pref",
71 file { "${file_name}.pref":
77 content => template('apt/_header.erb', 'apt/pin.pref.erb'),