Merge remote-tracking branch 'refs/remotes/dgit/dgit/sid'

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

diff --git a/IkiWiki/Plugin/orphans.pm b/IkiWiki/Plugin/orphans.pm
index 71122677273275d3e2f160bde3c8b44a8f333e49..e3cc3c940882dd27ec7576f8ff8ee63eb8dd845e 100644 (file)
--- a/IkiWiki/Plugin/orphans.pm
+++ b/IkiWiki/Plugin/orphans.pm
@@ -16,6 +16,7 @@ sub getsetup () {
                plugin => {
                        safe => 1,
                        rebuild => undef,
+                       section => "widget",
                },
 }
 
@@ -23,24 +24,34 @@ 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 @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".