needsbuild hook interface changed; the hooks should now return the modified array of things that need built. (Backwards compatability code keeps plugins using the old interface working.)

IkiWiki/Plugin/aggregate.pm

@@ -210,6 +210,8 @@ sub needsbuild (@) {
 			markunseen($feed->{sourcepage});
 		}
 	}
+
+	return $needsbuild;
 }
 
 sub preprocess (@) {

IkiWiki/Plugin/calendar.pm

@@ -491,6 +491,7 @@ sub needsbuild (@) {
 			}
 		}
 	}
+	return $needsbuild;
 }
 
 1

IkiWiki/Plugin/edittemplate.pm

@@ -41,6 +41,8 @@ sub needsbuild (@) {
 			}
 		}
 	}
+
+	return $needsbuild;
 }
 
 sub preprocess (@) {

IkiWiki/Plugin/listdirectives.pm

@@ -64,6 +64,8 @@ sub needsbuild (@) {
 			}
 		}
 	}
+
+	return $needsbuild;
 }
 
 sub preprocess (@) {

IkiWiki/Plugin/meta.pm

@@ -37,6 +37,7 @@ sub needsbuild (@) {
 			}
 		}
 	}
+	return $needsbuild;
 }
 
 sub scrub ($$) {

IkiWiki/Plugin/pinger.pm

@@ -45,6 +45,7 @@ sub needsbuild (@) {
 			}
 		}
 	}
+	return $needsbuild;
 }
 
 sub preprocess (@) {

IkiWiki/Plugin/po.pm

@@ -221,6 +221,8 @@ sub needsbuild () {
 	foreach my $master (keys %translations) {
 		map add_depends($_, $master), values %{otherlanguages_pages($master)};
 	}
+
+	return $needsbuild;
 }
 
 sub scan (@) {

IkiWiki/Plugin/skeleton.pm.example

@@ -73,7 +73,11 @@ sub refresh () {
 }
 
 sub needsbuild ($) {
+	my $needsbuild=shift;
+
 	debug("skeleton plugin needsbuild");
+
+	return $needsbuild;
 }
 
 sub preprocess (@) {

IkiWiki/Plugin/theme.pm

@@ -60,6 +60,7 @@ sub needsbuild ($) {
 		
 		$wikistate{theme}{currenttheme}=$config{theme};
 	}
+	return $needsbuild;
 }
 
 1

IkiWiki/Plugin/version.pm

@@ -37,6 +37,7 @@ sub needsbuild (@) {
 			}
 		}
 	}
+	return $needsbuild;
 }
 
 sub preprocess (@) {

IkiWiki/Render.pm

@@ -759,7 +759,10 @@ sub refresh () {
 	my ($new, $internal_new)=find_new_files($files);
 	my ($del, $internal_del)=find_del_files($pages);
 	my ($changed, $internal_changed)=find_changed($files);
-	run_hooks(needsbuild => sub { shift->($changed) });
+	run_hooks(needsbuild => sub {
+		my $ret=shift->($changed);
+		$changed=$ret if ref $ret eq 'ARRAY';
+	});
 	my $oldlink_targets=calculate_old_links($changed, $del);
 
 	foreach my $file (@$changed) {

debian/changelog

@@ -1,3 +1,11 @@
+ikiwiki (3.20100832) UNRELEASED; urgency=low
+
+  * needsbuild hook interface changed; the hooks should now return
+    the modified array of things that need built. (Backwards compatability
+    code keeps plugins using the old interface working.)
+
+ -- Joey Hess <joeyh@debian.org>  Tue, 07 Sep 2010 12:08:05 -0400
+
 ikiwiki (3.20100831) unstable; urgency=low
 
   * filecheck: Fall back to using the file command if the freedesktop

doc/plugins/write.mdwn

@@ -179,8 +179,8 @@ function is passed no values.
 
 This allows a plugin to manipulate the list of files that need to be
 built when the wiki is refreshed. The function is passed a reference to an
-array of files that will be rebuilt, and can modify the array, either
+array of files that will be rebuilt. It should return an array reference
-adding or removing files from it.
+that is a modified version of its input. It can add or remove files from it.
 
 ### scan