From ba571ac687bfe71df65a0c09f968a18437da3296 Mon Sep 17 00:00:00 2001
From: Florian Pritz <bluewind@xinu.at>
Date: Thu, 4 Aug 2011 09:51:37 +0200
Subject: ignore missing exif tags

Signed-off-by: Florian Pritz <bluewind@xinu.at>
---
 generate_gallery.pl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/generate_gallery.pl b/generate_gallery.pl
index 9363ea8..365f5f6 100755
--- a/generate_gallery.pl
+++ b/generate_gallery.pl
@@ -67,7 +67,11 @@ for my $dir (@ARGV) {
 		}
 		if ($opts{exif}) {
 			my $tags = ImageInfo($file, "Aperture", "ShutterSpeed", "FocalLength");
-			$description .= $tags->{ShutterSpeed}."s, ".$tags->{FocalLength}." @ F ".$tags->{Aperture};
+			if ($tags->{ShutterSpeed} && $tags->{FocalLength} && $tags->{Aperture}) {
+				$description .= $tags->{ShutterSpeed}."s, ".$tags->{FocalLength}." @ F ".$tags->{Aperture};
+			} else {
+				print STDERR "Missing at least one needed exif tag for \"$file\". Ignoring.\n";
+			}
 		}
 
 		$html .= "<div class=\"thumbnail\">\n";
-- 
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