From a6689f9c7a1ecad02b51962c0858df47352c4648 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@gnu.kitenet.net>
Date: Sun, 4 Oct 2009 16:05:41 -0400
Subject: [PATCH] calendar: all dependencies are contentless

---
 IkiWiki/Plugin/calendar.pm | 21 ++++++++++++---------
 debian/changelog           |  6 +++---
 2 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/IkiWiki/Plugin/calendar.pm b/IkiWiki/Plugin/calendar.pm
index 5d16dff75..a5cc20882 100644
--- a/IkiWiki/Plugin/calendar.pm
+++ b/IkiWiki/Plugin/calendar.pm
@@ -104,19 +104,22 @@ sub format_month (@) {
 			"$archivebase/$year/".sprintf("%02d", $month),
 			linktext => " $monthname ");
 	}
-	add_depends($params{page}, "$archivebase/$year/".sprintf("%02d", $month));
+	add_depends($params{page}, "$archivebase/$year/".sprintf("%02d", $month),
+		content => 0);
 	if (exists $cache{$pagespec}{"$pyear/$pmonth"}) {
 		$purl = htmllink($params{page}, $params{destpage}, 
 			"$archivebase/$pyear/" . sprintf("%02d", $pmonth),
 			linktext => " $pmonthname ");
 	}
-	add_depends($params{page}, "$archivebase/$pyear/".sprintf("%02d", $pmonth));
+	add_depends($params{page}, "$archivebase/$pyear/".sprintf("%02d", $pmonth),
+		content => 0);
 	if (exists $cache{$pagespec}{"$nyear/$nmonth"}) {
 		$nurl = htmllink($params{page}, $params{destpage}, 
 			"$archivebase/$nyear/" . sprintf("%02d", $nmonth),
 			linktext => " $nmonthname ");
 	}
-	add_depends($params{page}, "$archivebase/$nyear/".sprintf("%02d", $nmonth));
+	add_depends($params{page}, "$archivebase/$nyear/".sprintf("%02d", $nmonth),
+		content => 0);
 
 	# Start producing the month calendar
 	$calendar=<<EOF;
@@ -209,11 +212,11 @@ EOF
 
 	# Add dependencies to update the calendar whenever pages
 	# matching the pagespec are added or removed.
-	add_depends($params{page}, $params{pages});
+	add_depends($params{page}, $params{pages}, content => 0);
 	# 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}, $p);
+		add_depends($params{page}, $p, content => 0);
 	}
 
 	return $calendar;
@@ -246,19 +249,19 @@ sub format_year (@) {
 			"$archivebase/$year",
 			linktext => "$year");
 	}
-	add_depends($params{page}, "$archivebase/$year");
+	add_depends($params{page}, "$archivebase/$year", content => 0);
 	if (exists $cache{$pagespec}{"$pyear"}) {
 		$purl = htmllink($params{page}, $params{destpage}, 
 			"$archivebase/$pyear",
 			linktext => "\&larr;");
 	}
-	add_depends($params{page}, "$archivebase/$pyear");
+	add_depends($params{page}, "$archivebase/$pyear", content => 0);
 	if (exists $cache{$pagespec}{"$nyear"}) {
 		$nurl = htmllink($params{page}, $params{destpage}, 
 			"$archivebase/$nyear",
 			linktext => "\&rarr;");
 	}
-	add_depends($params{page}, "$archivebase/$nyear");
+	add_depends($params{page}, "$archivebase/$nyear", content => 0);
 
 	# Start producing the year calendar
 	$calendar=<<EOF;
@@ -310,7 +313,7 @@ EOF
 		else {
 			$calendar.=qq{\t<td class="$tag">$monthabbr</td>\n};
 		}
-		add_depends($params{page}, "$archivebase/$year/$mtag");
+		add_depends($params{page}, "$archivebase/$year/$mtag", content => 0);
 
 		$calendar.=qq{\t</tr>\n} if ($month % $params{months_per_row} == 0);
 	}
diff --git a/debian/changelog b/debian/changelog
index 9d03ae990..1a76303b1 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -13,9 +13,9 @@ ikiwiki (3.14159266) UNRELEASED; urgency=low
   * Added support framework for multiple types of dependencies.
   * Allow declaring that a dependency does not encompass the content of a
     page. (By passing content => 0 to add_depends.)
-  * pagecount: Use a contentless dependency, which makes this
-    directive much less expensive to use, since page edits will
-    no longer trigger an unnecessary update of the page count.
+  * pagecount, calendar: Use a contentless dependency, which makes these
+    directives much less expensive to use, since page edits will
+    no longer trigger an unnecessary update.
   * map: Use a contentless dependency unless show= is specified.
     This makes simple maps efficient enough that they can be used on sidebars!
   * inline: Use a contentless dependency in quick mode.