From 644f7bd9efceda1d9bb4c0985b02c3a98241844c Mon Sep 17 00:00:00 2001
From: Michael Prokop <mika@grml.org>
Date: Fri, 27 Jul 2012 14:43:40 +0200
Subject: [PATCH] Do not accept any command line arguments we can't handle

When executing something like:

| grml-live [...] -V B -q

this doesn't skip the mksquashfs stage (and neither the chroot
build stage of course) because the "B" can't be processed for
obvious reasons.  The user mistyped the "-B" here, but then we
shouldn't even try to execute the command line, so just exit in
such a case.
---
 grml-live | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/grml-live b/grml-live
index 3964cbd..0aed77e 100755
--- a/grml-live
+++ b/grml-live
@@ -337,6 +337,11 @@ while getopts "a:C:c:d:D:e:g:i:I:o:r:s:t:U:v:AbBFhnNqQuVz" opt; do
   esac
 done
 shift $(($OPTIND - 1))  # set ARGV to the first not parsed commandline parameter
+
+if [ -n "$1" ] ; then
+  echo "Error: unknown argument '$1' in options. Exiting to avoid possible data loss." >&2
+  bailout 1
+fi
 # }}}
 
 # read local (non-packaged) configuration {{{
-- 
2.1.4