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