my %params=@_;
$params{pages}="*" unless defined $params{pages};
- # Needs to update whenever a page is changed, added, or removed,
- # in order to see the link changes.
- add_depends($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 @orphans;
- foreach my $page (pagespec_match_list(
- [ grep { ! IkiWiki::backlink_pages($_) && $_ 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$config{discussionpage}\E$/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 have other pages linking to them.") unless @orphans;
return "<ul>\n".