From de5eb4996bbc8ab7d4263e70913de63e146d808d Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kodama.kitenet.net>
Date: Wed, 24 Oct 2007 23:07:39 -0400
Subject: * postsparkline: Avoid a confusing error message if no pages match  
 and instead show an empty graph.

---
 IkiWiki/Plugin/postsparkline.pm | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'IkiWiki/Plugin')

diff --git a/IkiWiki/Plugin/postsparkline.pm b/IkiWiki/Plugin/postsparkline.pm
index ac7ad9d73..dc996ae32 100644
--- a/IkiWiki/Plugin/postsparkline.pm
+++ b/IkiWiki/Plugin/postsparkline.pm
@@ -56,6 +56,11 @@ sub preprocess (@) { #{{{
 		return "[[postsparkline error $@]]";
 	}
 
+	if (! @data) {
+		# generate an empty graph
+		push @data, 0 foreach 1..$params{max};
+	}
+
 	my $color=exists $params{color} ? "($params{color})" : "";
 
 	delete $params{pages};
-- 
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