From 2b2f7f171260b07454bbf077e2b9a07e2eb63ee0 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Sun, 21 Nov 2010 18:30:48 -0500
Subject: [PATCH] handle blank dvd labels

---
 .bin/backup-dvd | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/.bin/backup-dvd b/.bin/backup-dvd
index 26f35a1..5ea4286 100755
--- a/.bin/backup-dvd
+++ b/.bin/backup-dvd
@@ -7,19 +7,22 @@ usage() {
 	Options:
 	 -i <input dev>      Defaults to ${dev}
 	 -o <output dir>     Defaults to ${out}
+	 -n <volume name>    Defaults to volume on disk
 	EOF
 	exit ${1:-0}
 }
 
 dev=/dev/cdrom
 out=${PWD}
+vol=
 
-eval set -- `getopt -- hi:o: "$@"`
+eval set -- `getopt -- hi:n:o: "$@"`
 while [[ -n $1 ]] ; do
 	case $1 in
 		-h) usage;;
 		-i) dev=$2; shift 2;;
 		-o) out=$2; shift 2;;
+		-n) vol=$2; shift 2;;
 		--) shift; break;;
 		-*) usage 1;;
 		*)  usage 2; break;;
@@ -31,18 +34,20 @@ Application=	# -A
 Preparer=		# -p
 Publisher=		# -publisher
 System=			# -sysid
-Volume=			# -V
+Volume=${vol}	# -V
 Volume_Set=		# -volset
 
-info=$(iso-info ${dev}) || exit 1
+if [[ -z ${Volume} ]] ; then
+	info=$(iso-info ${dev}) || exit 1
 
-eval $(echo "${info}" | awk -F: '
-	(NF > 1 && $1 !~ /image/) {
-		sub(/ *$/, "", $1);
-		sub(/ /, "_", $1);
-		sub(/^ */, "", $2);
-		print $1 "=\"" $2 "\"";
-}')
+	eval $(echo "${info}" | awk -F: '
+		(NF > 1 && $1 !~ /image/) {
+			sub(/ *$/, "", $1);
+			sub(/ /, "_", $1);
+			sub(/^ */, "", $2);
+			print $1 "=\"" $2 "\"";
+	}')
+fi
 
 if [[ -z ${Volume} ]] ; then
 	echo "Unable to parse Volume out of ISO"
@@ -59,7 +64,7 @@ e() {
 	echo
 	"$@"
 }
-e dvdbackup -M -i ${dev} -o "${out}"
+e dvdbackup -M -i ${dev} -o "${out}" -n "${Volume}"
 e mkisofs -quiet -dvd-video \
 	-A "${Application}" \
 	-p "${Preparer}" \
-- 
2.39.5