From: Joey Hess <joey@gnu.kitenet.net>
Date: Mon, 12 Oct 2009 18:19:04 +0000 (-0400)
Subject: year calendar: only link to months that have posts
X-Git-Tag: 3.20091017~27^2~6
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=5c78192435210cdb7792ed56b04c2ef24a2d2127;p=ikiwiki.git

year calendar: only link to months that have posts

This does mean the year calendars depend on existence of all posts made in
the year and have to be updated.
---

diff --git a/IkiWiki/Plugin/calendar.pm b/IkiWiki/Plugin/calendar.pm
index d5a80795a..ddcd1a823 100644
--- a/IkiWiki/Plugin/calendar.pm
+++ b/IkiWiki/Plugin/calendar.pm
@@ -242,6 +242,20 @@ EOF
 
 sub format_year (@) {
 	my %params=@_;
+	
+	my @post_months;
+	foreach my $p (pagespec_match_list($params{page}, 
+				"creation_year($params{year}) and ($params{pages})",
+				# add presence dependencies to update
+				# year calendar's links to months when
+				# pages are added/removed
+				deptype => deptype("presence"))) {
+		my $mtime = $IkiWiki::pagectime{$p};
+		my @date  = localtime($mtime);
+		my $month = $date[4] + 1;
+
+		$post_months[$month]++;
+	}
 		
 	my $calendar="\n";
 	
@@ -313,7 +327,8 @@ EOF
 			$tag = 'year-calendar-month-nolink';
 		}
 
-		if ($pagesources{"$archivebase/$params{year}/$mtag"}) {
+		if ($pagesources{"$archivebase/$params{year}/$mtag"} &&
+		    $post_months[$mtag]) {
 			$murl = htmllink($params{page}, $params{destpage}, 
 				"$archivebase/$params{year}/$mtag",
 				noimageinline => 1,