ext4_utils/mkuserimg.sh

   1 #!/bin/bash
   2 #
   3 # To call this script, make sure make_ext4fs is somewhere in PATH
   4
   5 function usage() {
   6 cat<<EOT
   7 Usage:
   8 mkuserimg.sh [-s] SRC_DIR OUTPUT_FILE EXT_VARIANT MOUNT_POINT SIZE [-j <journal_size>]
   9              [-T TIMESTAMP] [-C FS_CONFIG] [-D PRODUCT_OUT] [-B BLOCK_LIST_FILE] [-d BASE_ALLOC_FILE_IN ] [-A BASE_ALLOC_FILE_OUT ] [-L LABEL] [FILE_CONTEXTS]
  10 EOT
  11 }
  12
  13 ENABLE_SPARSE_IMAGE=
  14 if [ "$1" = "-s" ]; then
  15   ENABLE_SPARSE_IMAGE="-s"
  16   shift
  17 fi
  18
  19 if [ $# -lt 5 ]; then
  20   usage
  21   exit 1
  22 fi
  23
  24 SRC_DIR=$1
  25 if [ ! -d $SRC_DIR ]; then
  26   echo "Can not find directory $SRC_DIR!"
  27   exit 2
  28 fi
  29
  30 OUTPUT_FILE=$2
  31 EXT_VARIANT=$3
  32 MOUNT_POINT=$4
  33 SIZE=$5
  34 shift; shift; shift; shift; shift
  35
  36 JOURNAL_FLAGS=
  37 if [ "$1" = "-j" ]; then
  38   if [ "$2" = "0" ]; then
  39     JOURNAL_FLAGS="-J"
  40   else
  41     JOURNAL_FLAGS="-j $2"
  42   fi
  43   shift; shift
  44 fi
  45
  46 TIMESTAMP=-1
  47 if [[ "$1" == "-T" ]]; then
  48   TIMESTAMP=$2
  49   shift; shift
  50 fi
  51
  52 FS_CONFIG=
  53 if [[ "$1" == "-C" ]]; then
  54   FS_CONFIG=$2
  55   shift; shift
  56 fi
  57
  58 PRODUCT_OUT=
  59 if [[ "$1" == "-D" ]]; then
  60   PRODUCT_OUT=$2
  61   shift; shift
  62 fi
  63
  64 BLOCK_LIST=
  65 if [[ "$1" == "-B" ]]; then
  66   BLOCK_LIST=$2
  67   shift; shift
  68 fi
  69
  70 BASE_ALLOC_FILE_IN=
  71 if [[ "$1" == "-d" ]]; then
  72   BASE_ALLOC_FILE_IN=$2
  73   shift; shift
  74 fi
  75
  76 BASE_ALLOC_FILE_OUT=
  77 if [[ "$1" == "-A" ]]; then
  78   BASE_ALLOC_FILE_OUT=$2
  79   shift; shift
  80 fi
  81
  82 LABEL=
  83 if [[ "$1" == "-L" ]]; then
  84   LABEL=$2
  85   shift; shift
  86 fi
  87
  88 FC=$1
  89
  90 case $EXT_VARIANT in
  91   ext4) ;;
  92   *) echo "Only ext4 is supported!"; exit 3 ;;
  93 esac
  94
  95 if [ -z $MOUNT_POINT ]; then
  96   echo "Mount point is required"
  97   exit 2
  98 fi
  99
 100 if [ -z $SIZE ]; then
 101   echo "Need size of filesystem"
 102   exit 2
 103 fi
 104
 105 OPT=""
 106 if [ -n "$FC" ]; then
 107   OPT="$OPT -S $FC"
 108 fi
 109 if [ -n "$FS_CONFIG" ]; then
 110   OPT="$OPT -C $FS_CONFIG"
 111 fi
 112 if [ -n "$BLOCK_LIST" ]; then
 113   OPT="$OPT -B $BLOCK_LIST"
 114 fi
 115 if [ -n "$BASE_ALLOC_FILE_IN" ]; then
 116   OPT="$OPT -d $BASE_ALLOC_FILE_IN"
 117 fi
 118 if [ -n "$BASE_ALLOC_FILE_OUT" ]; then
 119   OPT="$OPT -D $BASE_ALLOC_FILE_OUT"
 120 fi
 121 if [ -n "$LABEL" ]; then
 122   OPT="$OPT -L $LABEL"
 123 fi
 124
 125 MAKE_EXT4FS_CMD="make_ext4fs $ENABLE_SPARSE_IMAGE -T $TIMESTAMP $OPT -l $SIZE $JOURNAL_FLAGS -a $MOUNT_POINT $OUTPUT_FILE $SRC_DIR $PRODUCT_OUT"
 126 echo $MAKE_EXT4FS_CMD
 127 $MAKE_EXT4FS_CMD
 128 if [ $? -ne 0 ]; then
 129   exit 4
 130 fi