Adding xz as valid compression format.

functions/defaults.sh

@@ -128,6 +128,8 @@ Set_defaults ()
 
 	LZMA_OPTIONS="${LZMA_OPTIONS:--6}"
 
+	XZ_OPTIONS="${XZ_OPTIONS:--6}"
+
 	# Setting apt recommends
 	case "${LB_MODE}" in
 		emdebian|progress)

scripts/build/lb_binary_netboot

@@ -157,6 +157,10 @@ case "${LB_COMPRESSION}" in
 		lzip ${LZIP_OPTIONS} ../binary.netboot.tar
 		;;
 
+	xz)
+		xz ${XZ_OPTIONS} ../binary.netboot.tar
+		;;
+
 	none)
 		;;
 esac

scripts/build/lb_binary_tar

@@ -61,6 +61,10 @@ case "${LB_COMPRESSION}" in
 		lzip ${LZIP_OPTIONS} binary-tar.tar
 		;;
 
+	xz)
+		xz ${XZ_OPTIONS} binary-tar.tar
+		;;
+
 	none)
 		;;
 esac

scripts/build/lb_binary_zsync

@@ -103,6 +103,10 @@ do
 				lzip ${LZIP_OPTIONS} ${_IMAGE}.zsync
 				;;
 
+			xz)
+				xz ${XZ_OPTIONS} ${_IMAGE}.zsync
+				;;
+
 			none)
 				;;
 		esac

scripts/build/lb_config

@@ -54,7 +54,7 @@ USAGE="${PROGRAM}   [--apt apt|aptitude]\n\
 \t    [--cache-packages true|false]\n\
 \t    [--cache-stages STAGE|\"STAGES\"]\n\
 \t    [--checksums md5|sha1|sha256|none]\n\
-\t    [--compression bzip2|gzip|lzip|none]\n\
+\t    [--compression bzip2|gzip|lzip|xz|none]\n\
 \t    [--zsync true|false]\n\
 \t    [--build-with-chroot true|false]\n\
 \t    [--chroot-filesystem ext2|ext3|ext4|squashfs|jffs2|none]\n\

scripts/build/lb_source_netboot

@@ -66,6 +66,10 @@ case "${_COMPRESSION}" in
 		lzip ${LZIP_OPTIONS} source.netboot.tar
 		;;
 
+	xz)
+		xz ${XZ_OPTIONS} source.netboot.tar
+		;;
+
 	none)
 		;;
 esac

scripts/build/lb_source_tar

@@ -72,6 +72,11 @@ case "${LB_COMPRESSION}" in
 		lzip ${LZIP_OPTIONS} source.debian-live.tar
 		;;
 
+	xz)
+		xz ${XZ_OPTIONS} source.debian.tar
+		xz ${XZ_OPTIONS} source.debian-live.tar
+		;;
+
 	none)
 		;;
 esac