forgot to add

1 files changed, 29 insertions, 0 deletions

diff --git a/IkiWiki/Plugin/version.pm b/IkiWiki/Plugin/version.pm
new file mode 100644
index 000000000..0e8d7b5e7
--- /dev/null
+++ b/IkiWiki/Plugin/version.pm
@@ -0,0 +1,29 @@
+#!/usr/bin/perl
+# Ikiwiki version plugin.
+package IkiWiki::Plugin::version;
+
+use warnings;
+use strict;
+use IkiWiki 2.00;
+
+sub import { #{{{
+	hook(type => "needsbuild", id => "version", call => \&needsbuild);
+	hook(type => "preprocess", id => "version", call => \&preprocess);
+} # }}}
+
+sub needsbuild (@) { #{{{
+	my $needsbuild=shift;
+	foreach my $page (keys %pagestate) {
+		if (exists $pagestate{$page}{version}{shown} &&
+		    $pagestate{$page}{version}{shown} ne $IkiWiki::version) {
+			push @$needsbuild, $pagesources{$page};
+		}
+	}
+} # }}}
+
+sub preprocess (@) { #{{{
+	my %params=@_;
+	$pagestate{$params{destpage}}{version}{shown}=$IkiWiki::version;
+} # }}}
+
+1