Allow add_depends to take an arrayref

IkiWiki.pm

@@ -1730,6 +1730,15 @@ sub add_depends ($$) {
 	my $page=shift;
 	my $pagespec=shift;
 
+	if (ref $pagespec eq 'ARRAY') {
+		foreach my $ps (@$pagespec) {
+			if (pagespec_valid($ps)) {
+				$depends{$page}{$ps} = 1;
+			}
+		}
+		return;
+	}
+
 	return unless pagespec_valid($pagespec);
 
 	$depends{$page}{$pagespec} = 1;

IkiWiki/Plugin/calendar.pm

@@ -212,9 +212,7 @@ EOF
 	add_depends($params{page}, $params{pages});
 	# Explicitly add all currently linked pages as dependencies, so
 	# that if they are removed, the calendar will be sure to be updated.
-	foreach my $p (@list) {
+	add_depends($params{page}, \@list);
-		add_depends($params{page}, $p);
-	}
 
 	return $calendar;
 }

IkiWiki/Plugin/inline.pm

@@ -251,9 +251,7 @@ sub preprocess_inline (@) {
 	# Explicitly add all currently displayed pages as dependencies, so
 	# that if they are removed or otherwise changed, the inline will be
 	# sure to be updated.
-	foreach my $p ($#list >= $#feedlist ? @list : @feedlist) {
+	add_depends($params{page}, $#list >= $#feedlist ? \@list : \@feedlist);
-		add_depends($params{page}, $p);
-	}
 	
 	if ($feeds && exists $params{feedpages}) {
 		@feedlist=pagespec_match_list(\@feedlist, $params{feedpages}, location => $params{page});

IkiWiki/Plugin/map.pm

@@ -73,9 +73,7 @@ sub preprocess (@) {
 	add_depends($params{page}, $params{pages});
 	# Explicitly add all currently shown pages, to detect when pages
 	# are removed.
-	foreach my $item (keys %mapitems) {
+	add_depends($params{page}, [keys %mapitems]);
-		add_depends($params{page}, $item);
-	}
 
 	# Create the map.
 	my $parent="";