From eb4945a3bc03bf062f59006cbed11b03526cefbb Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@debian.org>
Date: Tue, 16 Sep 2014 09:37:41 +0100
Subject: [PATCH] img: raise an error if we cannot find the image's size

This happens for PDFs without ghostscript installed, for instance.
---
 IkiWiki/Plugin/img.pm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index 54c13d069..17a58ca7a 100644
--- a/IkiWiki/Plugin/img.pm
+++ b/IkiWiki/Plugin/img.pm
@@ -78,7 +78,11 @@ sub preprocess (@) {
 	my $imgdatalink;
 	my $r = $im->Read("$srcfile\[$pagenumber]");
 	error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;
-	
+
+	if (! defined $im->Get("width") || ! defined $im->Get("height")) {
+		error sprintf(gettext("failed to get dimensions of %s"), $file);
+	}
+
 	my ($dwidth, $dheight);
 
 	if ($params{size} eq 'full') {
-- 
2.39.5