X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/aa306957bac11477b914ac19b93890184ffe4062..4ef0b2d77b6aa9db0a45e69c1db29998e4cc06fb:/IkiWiki/Plugin/orphans.pm

diff --git a/IkiWiki/Plugin/orphans.pm b/IkiWiki/Plugin/orphans.pm
index cf74c9b79..702943f87 100644
--- a/IkiWiki/Plugin/orphans.pm
+++ b/IkiWiki/Plugin/orphans.pm
@@ -23,33 +23,36 @@ sub preprocess (@) {
 	my %params=@_;
 	$params{pages}="*" unless defined $params{pages};
 	
-	# Needs to update whenever a page is added or removed, so
-	# register a dependency.
-	add_depends($params{page}, $params{pages});
+	# Needs to update whenever a link changes, on any page
+	# since any page could link to one of the pages we're
+	# considering as orphans.
+	add_depends($params{page}, "*", deptype("links"));
 	
-	my %linkedto;
-	foreach my $p (keys %links) {
-		map { $linkedto{bestlink($p, $_)}=1 if length $_ }
-			@{$links{$p}};
-	}
-	
-	my @orphans;
-	my $discussion=gettext("discussion");
-	foreach my $page (pagespec_match_list(
-			[ grep { ! $linkedto{$_} && $_ ne 'index' }
-				keys %pagesources ],
-			$params{pages}, location => $params{page})) {
-		# If the page has a link to some other page, it's
-		# indirectly linked to a page via that page's backlinks.
-		next if grep { 
-			length $_ &&
-			($_ !~ /\/\Q$discussion\E$/i || ! $config{discussion}) &&
-			bestlink($page, $_) !~ /^(\Q$page\E|)$/ 
-		} @{$links{$page}};
-		push @orphans, $page;
-	}
+	my @orphans=pagespec_match_list($params{page}, $params{pages},
+		# update when orphans are added/removed
+		deptype => deptype("presence"),
+		filter => sub {
+			my $page=shift;
+
+			# Filter out pages that other pages link to.
+			return 1 if IkiWiki::backlink_pages($page);
+
+			# Toplevel index is assumed to never be orphaned.
+			return 1 if $page eq 'index';
+
+			# If the page has a link to some other page, it's
+			# indirectly linked via that page's backlinks.
+			return 1 if grep {
+				length $_ &&
+				($_ !~ /\/\Q$config{discussionpage}\E$/i || ! $config{discussion}) &&
+				bestlink($page, $_) !~ /^(\Q$page\E|)$/ 
+			} @{$links{$page}};
+			
+			return 0;
+		},
+	);
 	
-	return gettext("All pages are linked to by other pages.") unless @orphans;
+	return gettext("All pages have other pages linking to them.") unless @orphans;
 	return "<ul>\n".
 		join("\n",
 			map {