common: modify scrip to make oem image

Change-Id: I8f07e3024ff21d11f300b008e10d31e2189c5de9
Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>

common/mk-oem.sh

@@ -1,43 +1,41 @@
 #!/bin/bash
 
-DEVICE_DIR=$(cd `dirname $0`; pwd)
+COMMON_DIR=$(cd `dirname $0`; pwd)
 if [ -h $0 ]
 then
         CMD=$(readlink $0)
-        DEVICE_DIR=$(dirname $CMD)
-fi
-cd $DEVICE_DIR
-cd ../../..
-TOP_DIR=$(pwd)
-
-if [ ! -n "$1" ]
-then
-	FS_TYPE=ext2
-else
-	FS_TYPE="$1"
+        COMMON_DIR=$(dirname $CMD)
 fi
 
-if [ ! -n "$2" ]
+if [ -n "$1" ]
 then
-	OEM_DIR=$DEVICE_DIR/oem
+	OEM_DIR="$1"
 else
-	OEM_DIR="$2"
+	exit 1
 fi
 
-if [ ! -n "$3" ]
+if [ -n "$2" ]
 then
-	OEM_IMG=$TOP_DIR/rockdev/oem.img
+	OEM_IMG="$2"
 else
-	OEM_IMG="$3"
+	exit 1
+fi
+
+if [ -n "$3" ]
+then
+        FS_TYPE="$3"
+else
+	exit 1
 fi
 
 if [ $FS_TYPE = ext2 ]
 then
-	$DEVICE_DIR/mke2img.sh $OEM_DIR $OEM_IMG
+	$COMMON_DIR/mke2img.sh $OEM_DIR $OEM_IMG
 
-fi
-
-if [ $FS_TYPE = squashfs ]
+elif [ $FS_TYPE = squashfs ]
 then
 	mksquashfs $OEM_DIR $OEM_IMG -noappend -comp gzip
+else
+	echo "file system: $FS_TYPE not support."
+	exit1
 fi

common/mke2img.sh

@@ -2,6 +2,8 @@
 
 SRC=$1
 DST=$2
-dd if=/dev/zero of=$DST bs=1M count=1
-mke2fs -t ext2 $DST
+SIZE=`expr $(du -h --max-depth=1 $SRC | awk '{print int($1)}') + 1`
+echo "create image size=${SIZE}M"
+dd if=/dev/zero of=$DST bs=1M count=$SIZE
+mke2fs -F -t ext2 $DST
 mke2fs -F -d $SRC $DST