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 ${0##*/} SRC_DIR OUTPUT_FILE [-s] [-m MOUNT_POINT] [-d PRODUCT_OUT] [-C FS_CONFIG ] [-c FILE_CONTEXTS] [-b BLOCK_SIZE] [-z COMPRESSOR] [-zo COMPRESSOR_OPT]
   9 EOT
  10 }
  11
  12 echo "in mksquashfsimage.sh PATH=$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_SIZE=131072
  58 if [[ "$1" == "-b" ]]; then
  59     BLOCK_SIZE=$2
  60     shift; shift
  61 fi
  62
  63 COMPRESSOR="lz4"
  64 COMPRESSOR_OPT="-Xhc"
  65 if [[ "$1" == "-z" ]]; then
  66     COMPRESSOR=$2
  67     COMPRESSOR_OPT=
  68     shift; shift
  69 fi
  70
  71 if [[ "$1" == "-zo" ]]; then
  72     COMPRESSOR_OPT=$2
  73     shift; shift
  74 fi
  75
  76 OPT=""
  77 if [ -n "$MOUNT_POINT" ]; then
  78   OPT="$OPT -mount-point $MOUNT_POINT"
  79 fi
  80 if [ -n "$PRODUCT_OUT" ]; then
  81   OPT="$OPT -product-out $PRODUCT_OUT"
  82 fi
  83 if [ -n "$FS_CONFIG" ]; then
  84   OPT="$OPT -fs-config-file $FS_CONFIG"
  85 fi
  86 if [ -n "$FILE_CONTEXTS" ]; then
  87   OPT="$OPT -context-file $FILE_CONTEXTS"
  88 fi
  89 if [ -n "$BLOCK_SIZE" ]; then
  90   OPT="$OPT -b $BLOCK_SIZE"
  91 fi
  92
  93 MAKE_SQUASHFS_CMD="mksquashfs $SRC_DIR/ $OUTPUT_FILE -no-progress -comp $COMPRESSOR $COMPRESSOR_OPT -no-exports -noappend -no-recovery -android-fs-config -no-fragments $OPT"
  94 echo $MAKE_SQUASHFS_CMD
  95 $MAKE_SQUASHFS_CMD
  96
  97 if [ $? -ne 0 ]; then
  98     exit 4
  99 fi
 100
 101 SPARSE_SUFFIX=".sparse"
 102 if [ "$SPARSE" = true ]; then
 103     img2simg $OUTPUT_FILE $OUTPUT_FILE$SPARSE_SUFFIX
 104     if [ $? -ne 0 ]; then
 105         exit 4
 106     fi
 107     mv $OUTPUT_FILE$SPARSE_SUFFIX $OUTPUT_FILE
 108 fi
 109