optimise brokenlinks by gathering the data when calculating backlinks

[git.ikiwiki.info.git] / IkiWiki / Plugin / pagestats.pm

diff --git a/IkiWiki/Plugin/pagestats.pm b/IkiWiki/Plugin/pagestats.pm
index 8ab5d36662ce71716a1733e1a4b5de223c92602b..874ead7e6de669c1d33c66b74984ef90504f9b8e 100644 (file)
--- a/IkiWiki/Plugin/pagestats.pm
+++ b/IkiWiki/Plugin/pagestats.pm
@@ -38,13 +38,22 @@ sub preprocess (@) {
        # Needs to update whenever a page is added or removed, so
        # register a dependency.
        add_depends($params{page}, $params{pages});
+       add_depends($params{page}, $params{among}) if exists $params{among};
        
        my %counts;
        my $max = 0;
        foreach my $page (pagespec_match_list([keys %links],
                        $params{pages}, location => $params{page})) {
                use IkiWiki::Render;
-               $counts{$page} = scalar(IkiWiki::backlinks($page));
+
+               my @backlinks = IkiWiki::backlink_pages($page);
+
+               if (exists $params{among}) {
+                       @backlinks = pagespec_match_list(\@backlinks,
+                               $params{among}, location => $params{page});
+               }
+
+               $counts{$page} = scalar(@backlinks);
                $max = $counts{$page} if $counts{$page} > $max;
        }
 
@@ -63,6 +72,8 @@ sub preprocess (@) {
 
                my $res = "<div class='pagecloud'>\n";
                foreach my $page (sort keys %counts) {
+                       next unless $counts{$page} > 0;
+
                        my $class = $classes[$counts{$page} * scalar(@classes) / ($max + 1)];
                        $res .= "<span class=\"$class\">".
                                htmllink($params{page}, $params{destpage}, $page).