squashfs_utils/mksquashfsimage.sh

   1 #!/bin/bash
   2 #
   3 # To call this script, make sure mksquashfs is somewhere in PATH
   4
   5 function usage() {
   6 cat<<EOT
   7 Usage:
   8 ${0##*/} SRC_DIR OUTPUT_FILE [-s] [-m MOUNT_POINT] [-d PRODUCT_OUT] [-C FS_CONFIG ] [-c FILE_CONTEXTS] [-B BLOCK_MAP_FILE] [-b BLOCK_SIZE] [-z COMPRESSOR] [-zo COMPRESSOR_OPT] [-t COMPRESS_THRESHOLD] [-a]
   9 EOT
  10 }
  11
  12 echo "in mksquashfsimage.sh PATH=$PATH"
  13
  14 if [ $# -lt 2 ]; then
  15     usage
  16     exit 1
  17 fi
  18
  19 SRC_DIR=$1
  20 if [ ! -d $SRC_DIR ]; then
  21   echo "Can not find directory $SRC_DIR!"
  22   exit 2
  23 fi
  24 OUTPUT_FILE=$2
  25 shift; shift
  26
  27 SPARSE=false
  28 if [[ "$1" == "-s" ]]; then
  29     SPARSE=true
  30     shift;
  31 fi
  32
  33 MOUNT_POINT=
  34 if [[ "$1" == "-m" ]]; then
  35     MOUNT_POINT=$2
  36     shift; shift
  37 fi
  38
  39 PRODUCT_OUT=
  40 if [[ "$1" == "-d" ]]; then
  41     PRODUCT_OUT=$2
  42     shift; shift
  43 fi
  44
  45 FS_CONFIG=
  46 if [[ "$1" == "-C" ]]; then
  47     FS_CONFIG=$2
  48     shift; shift
  49 fi
  50
  51 FILE_CONTEXTS=
  52 if [[ "$1" == "-c" ]]; then
  53     FILE_CONTEXTS=$2
  54     shift; shift
  55 fi
  56
  57 BLOCK_MAP_FILE=
  58 if [[ "$1" == "-B" ]]; then
  59     BLOCK_MAP_FILE=$2
  60     shift; shift
  61 fi
  62
  63 BLOCK_SIZE=131072
  64 if [[ "$1" == "-b" ]]; then
  65     BLOCK_SIZE=$2
  66     shift; shift
  67 fi
  68
  69 COMPRESSOR="lz4"
  70 COMPRESSOR_OPT="-Xhc"
  71 if [[ "$1" == "-z" ]]; then
  72     COMPRESSOR=$2
  73     COMPRESSOR_OPT=
  74     shift; shift
  75 fi
  76
  77 if [[ "$1" == "-zo" ]]; then
  78     COMPRESSOR_OPT=$2
  79     shift; shift
  80 fi
  81
  82 COMPRESS_THRESHOLD=0
  83 if [[ "$1" == "-t" ]]; then
  84     COMPRESS_THRESHOLD=$2
  85     shift; shift
  86 fi
  87
  88
  89 DISABLE_4K_ALIGN=false
  90 if [[ "$1" == "-a" ]]; then
  91     DISABLE_4K_ALIGN=true
  92     shift;
  93 fi
  94
  95 OPT=""
  96 if [ -n "$MOUNT_POINT" ]; then
  97   OPT="$OPT -mount-point $MOUNT_POINT"
  98 fi
  99 if [ -n "$PRODUCT_OUT" ]; then
 100   OPT="$OPT -product-out $PRODUCT_OUT"
 101 fi
 102 if [ -n "$FS_CONFIG" ]; then
 103   OPT="$OPT -fs-config-file $FS_CONFIG"
 104 fi
 105 if [ -n "$FILE_CONTEXTS" ]; then
 106   OPT="$OPT -context-file $FILE_CONTEXTS"
 107 fi
 108 if [ -n "$BLOCK_MAP_FILE" ]; then
 109   OPT="$OPT -block-map $BLOCK_MAP_FILE"
 110 fi
 111 if [ -n "$BLOCK_SIZE" ]; then
 112   OPT="$OPT -b $BLOCK_SIZE"
 113 fi
 114 if [ -n "$COMPRESS_THRESHOLD" ]; then
 115   OPT="$OPT -t $COMPRESS_THRESHOLD"
 116 fi
 117 if [ "$DISABLE_4K_ALIGN" = true ]; then
 118   OPT="$OPT -disable-4k-align"
 119 fi
 120
 121 MAKE_SQUASHFS_CMD="mksquashfs $SRC_DIR/ $OUTPUT_FILE -no-progress -comp $COMPRESSOR $COMPRESSOR_OPT -no-exports -noappend -no-recovery -no-fragments -no-duplicates -android-fs-config $OPT"
 122 echo $MAKE_SQUASHFS_CMD
 123 $MAKE_SQUASHFS_CMD
 124
 125 if [ $? -ne 0 ]; then
 126     exit 4
 127 fi
 128
 129 SPARSE_SUFFIX=".sparse"
 130 if [ "$SPARSE" = true ]; then
 131     img2simg $OUTPUT_FILE $OUTPUT_FILE$SPARSE_SUFFIX
 132     if [ $? -ne 0 ]; then
 133         exit 4
 134     fi
 135     mv $OUTPUT_FILE$SPARSE_SUFFIX $OUTPUT_FILE
 136 fi
 137