--- /dev/null
+#!/usr/bin/perl
+# -*- cperl-indent-level: 8; -*-
+# Ikiwiki pedigree plugin.
+package IkiWiki::Plugin::pedigree;
+
+use warnings;
+use strict;
+use IkiWiki 2.00;
+
+sub import { #{{{
+ hook(type => "pagetemplate", id => "pedigree", call => \&pagetemplate);
+} # }}}
+
+sub pedigree ($) { #{{{
+ my $page=shift;
+
+ my @ret;
+ my $path="";
+ my $title=$config{wikiname};
+ my $i;
+
+ my @pagepath=(split("/", $page));
+ my $pageloc=@pagepath - 1;
+ foreach my $dir (@pagepath) {
+ next if $dir eq 'index';
+ push @ret, {
+ url => urlto($path, $page),
+ page => $title,
+ level => $i,
+ is_root => ($i eq 0),
+ is_first_child => ($i eq 1),
+ is_mother => ($i eq ($pageloc - 1)),
+ is_grand_mother => ($i eq ($pageloc - 2))
+ };
+ $path.="/".$dir;
+ $title=pagetitle($dir);
+ $i++;
+ }
+ return @ret;
+} #}}}
+
+sub pagetemplate (@) { #{{{
+ my %params=@_;
+ my $page=$params{page};
+ my $template=$params{template};
+
+ if ($template->query(name => "pedigree")) {
+ $template->param(pedigree => [pedigree($page)]);
+ }
+
+} # }}}
+
+1