meta: Store "description" in pagestate for use by other plugins.

map: Support show=description.

IkiWiki/Plugin/meta.pm

@@ -78,6 +78,11 @@ sub preprocess (@) { #{{{
 	# Metadata collection that needs to happen during the scan pass.
 	if ($key eq 'title') {
 		$pagestate{$page}{meta}{title}=HTML::Entities::encode_numeric($value);
+		# fallthrough
+	}
+	elsif ($key eq 'description') {
+		$pagestate{$page}{meta}{description}=HTML::Entities::encode_numeric($value);
+		# fallthrough
 	}
 	elsif ($key eq 'license') {
 		push @{$metaheaders{$page}}, '<link rel="license" href="#page_license" />';

debian/changelog

@@ -6,6 +6,8 @@ ikiwiki (2.51) UNRELEASED; urgency=low
     titles, rather than the default page name. Based on a patch from 
     Jaldhar H. Vyas, Closes: #484510
   * hnb: New plugin, contributed by Axel Beckert.
+  * meta: Store "description" in pagestate for use by other plugins.
+  * map: Support show=description.
 
  -- Joey Hess <joeyh@debian.org>  Sun, 15 Jun 2008 15:03:33 -0400
 

doc/plugins.mdwn

@@ -1,6 +1,8 @@
 Most of ikiwiki's [[features]] are implemented as plugins. Many of these 
 plugins are included with ikiwiki.
 
+[[map pages="plugins/*" show=description]]
+
 [[pagestats pages="plugins/type/* and !plugins/type/slow"]]
 
 There's documentation if you want to [[write]] your own plugins, or you can

doc/plugins/map.mdwn

@@ -1,6 +1,8 @@
 [[template id=plugin name=map author="Alessandro Dotti Contra"]]
 [[tag type/meta]]
 
+[[meta description="some page description"]]
+
 This plugin generates a hierarchical page map for the wiki. Example usage:
 
 	\[[map pages="* and !blog/* and !*/Discussion"]]
@@ -9,7 +11,8 @@ If the pages to include are not specified, all pages (and other files) in
 the wiki are mapped.
 
 By default, the names of pages are shown in the map. The `show` parameter
-can be used to show the titles of pages instead. For example:
+can be used to show the titles or descriptions of pages instead (as set by
+the [[meta]] plugin). For example:
 
 	\[[map pages="* and !blog/* and !*/Discussion" show=title]]