From f02f806cf70ed19c9e9aa70e232ca46398b3538a Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@gnu.kitenet.net>
Date: Wed, 2 Dec 2009 12:58:45 -0500
Subject: calendar: Fix month wraparound error that broke in December.

---
 IkiWiki/Plugin/calendar.pm | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'IkiWiki/Plugin/calendar.pm')

diff --git a/IkiWiki/Plugin/calendar.pm b/IkiWiki/Plugin/calendar.pm
index cbbb57e98..77fd50827 100644
--- a/IkiWiki/Plugin/calendar.pm
+++ b/IkiWiki/Plugin/calendar.pm
@@ -396,8 +396,14 @@ sub preprocess (@) {
 	}
 	elsif ($params{type} eq 'year' && $params{year} == $thisyear) {
 		# calendar for current year, updates 1st of next month
-		$pagestate{$params{destpage}}{calendar}{nextchange}=
-			timelocal(0, 0, 0, 1, $thismonth+1-1, $params{year});
+		if ($thismonth < 12) {
+			$pagestate{$params{destpage}}{calendar}{nextchange}=
+				timelocal(0, 0, 0, 1, $thismonth+1-1, $params{year});
+		}
+		else {
+			$pagestate{$params{destpage}}{calendar}{nextchange}=
+				timelocal(0, 0, 0, 1, 1-1, $params{year}+1);
+		}
 	}
 	elsif ($params{type} eq 'year' && $params{year} > $thisyear) {
 		# calendar for upcoming year, updates 1st of that year
-- 
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