Add underlay plugin

IkiWiki/Plugin/underlay.pm

@@ -0,0 +1,40 @@
+#!/usr/bin/perl
+package IkiWiki::Plugin::underlay;
+# Copyright © 2008 Simon McVittie <http://smcv.pseudorandom.co.uk/>
+# Licensed under the GNU GPL, version 2, or any later version published by the
+# Free Software Foundation
+
+use warnings;
+use strict;
+use IkiWiki 3.00;
+
+sub import {
+	hook(type => "getsetup", id => "underlay",  call => \&getsetup);
+	hook(type => "checkconfig", id => "underlay", call => \&checkconfig);
+}
+
+sub getsetup () {
+	return
+		plugin => {
+			safe => 0,
+			rebuild => undef,
+		},
+		add_underlays => {
+			type => "string",
+			default => [],
+			description => "extra underlay directories to add",
+			advanced => 1,
+			safe => 0,
+			rebuild => 1,
+		},
+}
+
+sub checkconfig () {
+	return unless exists $config{add_underlays};
+
+	foreach my $dir (@{$config{add_underlays}}) {
+		add_underlay($dir);
+	}
+}
+
+1;