Add support for xz compression

.gitignore

@@ -6,6 +6,7 @@
 *.pyc
 
 # Generated files
+cleanup.log
 src/Makefile
 src/config.log
 src/config.status
@@ -97,3 +98,9 @@ src/wrt_vx_imgtool/wrt_vx_imgtool
 src/yaffs2utils/mkyaffs2
 src/yaffs2utils/unspare2
 src/yaffs2utils/unyaffs2
+
+# work directory
+/fmk/
+
+# standard IDE
+/.idea/

build-firmware.sh

@@ -53,7 +53,9 @@ rm -rf "$FWOUT" "$FSOUT"
 case $FS_TYPE in
 	"squashfs")
 		# Check for squashfs 4.0 realtek, which requires the -comp option to build lzma images.
-		if [ "$FS_COMPRESSION" == "lzma" ]; then
+		if [ "$FS_COMPRESSION" == "xz" ]; then
+            COMP="-comp xz"
+		elif [ "$FS_COMPRESSION" == "lzma" ]; then
 			if [ "$(echo $MKFS | grep 'squashfs-4.0-realtek')" != "" ] || [ "$(echo $MKFS | grep 'squashfs-4.2')" != "" ]; then
 				COMP="-comp lzma"
 			else

extract-firmware.sh

@@ -97,6 +97,8 @@ for LINE in IFS='
 		# Check for compression type of the file system. Default to LZMA
 		if [ "$(echo ${LINE} | grep -i 'gzip')" != "" ];  then
 			FS_COMPRESSION="gzip"
+		elif [ "$(echo ${LINE} | grep -i 'xz')" != "" ];  then
+		    FS_COMPRESSION="xz"
 		else
 			FS_COMPRESSION="lzma"
 		fi