* Add feedshow option to allow reducing the number of items included in

  an rss or atom feed.

5 files changed, 35 insertions, 16 deletions

diff --git a/IkiWiki/Plugin/inline.pm b/IkiWiki/Plugin/inline.pm
index ec1cf0970..06b74b3fa 100644
--- a/IkiWiki/Plugin/inline.pm
+++ b/IkiWiki/Plugin/inline.pm
@@ -190,19 +190,25 @@ sub preprocess_inline (@) { #{{{
 		}
 	}
 	
-	if ($feeds && $rss) {
-		will_render($params{page}, rsspage($params{page}));
-		writefile(rsspage($params{page}), $config{destdir},
-			genfeed("rss", $rssurl, $desc, $params{page}, @list));
-		$toping{$params{page}}=1 unless $config{rebuild};
-		$feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/rss+xml" title="RSS" href="$rssurl" />};
-	}
-	if ($feeds && $atom) {
-		will_render($params{page}, atompage($params{page}));
-		writefile(atompage($params{page}), $config{destdir},
-			genfeed("atom", $atomurl, $desc, $params{page}, @list));
-		$toping{$params{page}}=1 unless $config{rebuild};
-		$feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/atom+xml" title="Atom" href="$atomurl" />};
+	if ($feeds) {
+		if (exists $params{feedshow} && @list > $params{feedshow}) {
+			@list=@list[0..$params{feedshow} - 1];
+		}
+	
+		if ($rss) {
+			will_render($params{page}, rsspage($params{page}));
+			writefile(rsspage($params{page}), $config{destdir},
+				genfeed("rss", $rssurl, $desc, $params{page}, @list));
+			$toping{$params{page}}=1 unless $config{rebuild};
+			$feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/rss+xml" title="RSS" href="$rssurl" />};
+		}
+		if ($atom) {
+			will_render($params{page}, atompage($params{page}));
+			writefile(atompage($params{page}), $config{destdir},
+				genfeed("atom", $atomurl, $desc, $params{page}, @list));
+			$toping{$params{page}}=1 unless $config{rebuild};
+			$feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/atom+xml" title="Atom" href="$atomurl" />};
+		}
 	}
 	
 	return $ret;
diff --git a/debian/changelog b/debian/changelog
index 4c45fbea7..fb3afc21e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -15,8 +15,10 @@ ikiwiki (1.42) UNRELEASED; urgency=low
   * Lots of CGI code reorg and cleanup.
   * Avoid using lots of memory when copying large non-html files.
     Yes, you can keep videos in the wiki..
+  * Add feedshow option to allow reducing the number of items included in
+    an rss or atom feed.
 
- -- Joey Hess <joeyh@debian.org>  Fri,  2 Feb 2007 21:59:04 -0500
+ -- Joey Hess <joeyh@debian.org>  Mon,  5 Feb 2007 16:51:10 -0500
 
 ikiwiki (1.41) unstable; urgency=low
 
diff --git a/doc/examples/blog/posts.mdwn b/doc/examples/blog/posts.mdwn
index e4b053d8f..f5b128df0 100644
--- a/doc/examples/blog/posts.mdwn
+++ b/doc/examples/blog/posts.mdwn
@@ -1,3 +1,3 @@
 Here is a full list of posts to my [[blog|index]].
 
-[[inline pages="*blog/posts/* and !*/Discussion" archive=yes quick=yes]]
+[[inline pages="*blog/posts/* and !*/Discussion" archive=yes feedshow=10 quick=yes]]
diff --git a/doc/plugins/inline.mdwn b/doc/plugins/inline.mdwn
index cfea8006e..cd76fd286 100644
--- a/doc/plugins/inline.mdwn
+++ b/doc/plugins/inline.mdwn
@@ -18,6 +18,10 @@ directive:
 * `show` - Specify the maximum number of matching pages to inline.
   Default is 10, unless archiving, when the default is to show all.
   Set to 0 to show all matching pages.
+* `feedshow` - Specify the maximum number of matching pages to include in
+  the rss/atom feeds. The default is the same as the `show` value above,
+  and it cannot be larger than that value, but can be set to a smaller
+  value to avoid producing excessively large feed files.
 * `skip` - Specify a number of pages to skip displaying. Can be useful
   to produce a feed that only shows archived pages.
 * `rss` - controls generation of an rss feed. On by default if the wiki is
diff --git a/doc/todo/Shorter_feeds.mdwn b/doc/todo/Shorter_feeds.mdwn
index 0966bc216..2e0b0fab9 100644
--- a/doc/todo/Shorter_feeds.mdwn
+++ b/doc/todo/Shorter_feeds.mdwn
@@ -1,4 +1,11 @@
-It should be possible to control the number of items included in a feed independently of the number of items included on the page (the latter, however, possibly setting an upper limit). This would be particularly useful on archive pages providing a feed. Presently the feed grows huge, if the archive page has no limit on the entries listed on it (as in the list of [all entries][ionfaq] in the Ion FAQ). An alternative useful filter would be filtering by the age of the page.
+It should be possible to control the number of items included in a feed
+independently of the number of items included on the page (the latter,
+however, possibly setting an upper limit). This would be particularly
+useful on archive pages providing a feed. Presently the feed grows huge, if
+the archive page has no limit on the entries listed on it (as in the list
+of [all entries][ionfaq] in the Ion FAQ). An alternative useful filter
+would be filtering by the age of the page.
 
   [ionfaq]: http://iki.fi/tuomov/ion/faq/entries.html
 
+> [[todo/Done]], option name is `feedshow` --[[Joey]]