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 ${0##*/} SRC_DIR OUTPUT_FILE [-s] [-m MOUNT_POINT] [-c FILE_CONTEXTS] [-b BLOCK_SIZE] [-z COMPRESSOR] [-zo COMPRESSOR_OPT]
   9 EOT
  10 }
  11
  12 echo "in mksquashfsimage.sh PATH=$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 FILE_CONTEXTS=
  40 if [[ "$1" == "-c" ]]; then
  41     FILE_CONTEXTS=$2
  42     shift; shift
  43 fi
  44
  45 BLOCK_SIZE=131072
  46 if [[ "$1" == "-b" ]]; then
  47     BLOCK_SIZE=$2
  48     shift; shift
  49 fi
  50
  51 COMPRESSOR="lz4"
  52 COMPRESSOR_OPT="-Xhc"
  53 if [[ "$1" == "-z" ]]; then
  54     COMPRESSOR=$2
  55     COMPRESSOR_OPT=
  56     shift; shift
  57 fi
  58
  59 if [[ "$1" == "-zo" ]]; then
  60     COMPRESSOR_OPT=$2
  61     shift; shift
  62 fi
  63
  64 OPT=""
  65 if [ -n "$MOUNT_POINT" ]; then
  66   OPT="$OPT -mount-point $MOUNT_POINT"
  67 fi
  68 if [ -n "$FILE_CONTEXTS" ]; then
  69   OPT="$OPT -context-file $FILE_CONTEXTS"
  70 fi
  71 if [ -n "$BLOCK_SIZE" ]; then
  72   OPT="$OPT -b $BLOCK_SIZE"
  73 fi
  74
  75 MAKE_SQUASHFS_CMD="mksquashfs $SRC_DIR/ $OUTPUT_FILE -no-progress -comp $COMPRESSOR $COMPRESSOR_OPT -no-exports -noappend -no-recovery -android-fs-config $OPT"
  76 echo $MAKE_SQUASHFS_CMD
  77 $MAKE_SQUASHFS_CMD
  78
  79 if [ $? -ne 0 ]; then
  80     exit 4
  81 fi
  82
  83 SPARSE_SUFFIX=".sparse"
  84 if [ "$SPARSE" = true ]; then
  85     img2simg $OUTPUT_FILE $OUTPUT_FILE$SPARSE_SUFFIX
  86     if [ $? -ne 0 ]; then
  87         exit 4
  88     fi
  89     mv $OUTPUT_FILE$SPARSE_SUFFIX $OUTPUT_FILE
  90 fi
  91