From 9e7a48deb5c2046c7087e1f998748914b01b12be Mon Sep 17 00:00:00 2001
From: Michael Prokop <mika@grml.org>
Date: Tue, 23 Apr 2013 15:15:10 +0200
Subject: [PATCH] grml2iso: make sure to exit properly if provided argument to
 -c option does not exist

Otherwise we're hiding the actual error message.
---
 grml2iso | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grml2iso b/grml2iso
index 0addfb7..8f4d7b8 100755
--- a/grml2iso
+++ b/grml2iso
@@ -86,7 +86,7 @@ Options:
     case $name in
       o)   ISOFILE="$OPTARG";;
       b)   GRML2USB_OPTS+=(--bootoptions="$OPTARG");;
-      c)   DIR="$(readlink -f "$OPTARG")";;
+      c)   DIR="$(readlink -f "$OPTARG")"; [ -n "$DIR" ] || { echo "Could not read $OPTARG - exiting" >&2 ; exit 1 ; } ;;
       f)   FORCE='true';;
       r)   GRML2USB_OPTS+=(--remove-bootoption="$OPTARG");;
       p)   GRML2USB_OPTS+=("$OPTARG");;
-- 
2.1.4