add option to allow excluding binaries from being upgraded

manifests/params.pp

@@ -14,11 +14,13 @@
 # @param [String] ac_emit_via  how to inform about emitted updates
 # @param [String] ac_email_to where to send the email to
 # @param [String] ac_email_host which host to use to send the email
+# @param [Variant[String,Array[String]]] ac_excludepkgs packages to exclude from updates
 ##############################################################################
 class confdroid_automatic::params (
 
-  String $ac_reqpackages                 = 'dnf-automatic',
-  String $ac_pkg_ensure                  = 'latest',
+  String $ac_reqpackages                          = 'dnf-automatic',
+  String $ac_pkg_ensure                           = 'latest',
+  Variant[String, Array[String]] $ac_excludepkgs  = [],
 
   # updates
   String $ac_upgrade_type             = 'default',
@@ -45,6 +47,11 @@ class confdroid_automatic::params (
   $ac_main_config           = '/etc/dnf/automatic.conf'
   $ac_main_config_erb       = 'confdroid_automatic/automatic.conf.erb'
 
+  $ac_excludepkgs_normalized = $ac_excludepkgs ? {
+    Array   => join($ac_excludepkgs, ','),
+    default => $ac_excludepkgs,
+  }
+
 # includes must be last
   include confdroid_automatic::main::config
 }

templates/automatic.conf.erb

@@ -93,5 +93,9 @@ email_to                    = <%= @ac_email_to %>
 [base]
 # This section overrides dnf.conf
 
+<% unless @ac_excludepkgs_normalized.empty? -%>
+excludepkgs = <%= @ac_excludepkgs_normalized %>
+<% end -%>
+
 # Use this to filter DNF core messages
 debuglevel = 1