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#!/bin/bash
#
# To call this script, make sure make_ext4fs is somewhere in PATH
function usage() {
cat<<EOT
Usage:
mkuserimg.sh [-s] SRC_DIR OUTPUT_FILE EXT_VARIANT MOUNT_POINT SIZE [-j <journal_size>]
[-T TIMESTAMP] [-C FS_CONFIG] [-D PRODUCT_OUT] [-B BLOCK_LIST_FILE]
[-d BASE_ALLOC_FILE_IN ] [-A BASE_ALLOC_FILE_OUT ] [-L LABEL]
[-i INODES ] [FILE_CONTEXTS]
EOT
}
ENABLE_SPARSE_IMAGE=
if [ "$1" = "-s" ]; then
ENABLE_SPARSE_IMAGE="-s"
shift
fi
if [ $# -lt 5 ]; then
usage
exit 1
fi
SRC_DIR=$1
if [ ! -d $SRC_DIR ]; then
echo "Can not find directory $SRC_DIR!"
exit 2
fi
OUTPUT_FILE=$2
EXT_VARIANT=$3
MOUNT_POINT=$4
SIZE=$5
shift; shift; shift; shift; shift
JOURNAL_FLAGS=
if [ "$1" = "-j" ]; then
if [ "$2" = "0" ]; then
JOURNAL_FLAGS="-J"
else
JOURNAL_FLAGS="-j $2"
fi
shift; shift
fi
TIMESTAMP=-1
if [[ "$1" == "-T" ]]; then
TIMESTAMP=$2
shift; shift
fi
FS_CONFIG=
if [[ "$1" == "-C" ]]; then
FS_CONFIG=$2
shift; shift
fi
PRODUCT_OUT=
if [[ "$1" == "-D" ]]; then
PRODUCT_OUT=$2
shift; shift
fi
BLOCK_LIST=
if [[ "$1" == "-B" ]]; then
BLOCK_LIST=$2
shift; shift
fi
BASE_ALLOC_FILE_IN=
if [[ "$1" == "-d" ]]; then
BASE_ALLOC_FILE_IN=$2
shift; shift
fi
BASE_ALLOC_FILE_OUT=
if [[ "$1" == "-A" ]]; then
BASE_ALLOC_FILE_OUT=$2
shift; shift
fi
LABEL=
if [[ "$1" == "-L" ]]; then
LABEL=$2
shift; shift
fi
INODES=
if [[ "$1" == "-i" ]]; then
INODES=$2
shift; shift
fi
FC=$1
case $EXT_VARIANT in
ext4) ;;
*) echo "Only ext4 is supported!"; exit 3 ;;
esac
if [ -z $MOUNT_POINT ]; then
echo "Mount point is required"
exit 2
fi
if [ -z $SIZE ]; then
echo "Need size of filesystem"
exit 2
fi
OPT=""
if [ -n "$FC" ]; then
OPT="$OPT -S $FC"
fi
if [ -n "$FS_CONFIG" ]; then
OPT="$OPT -C $FS_CONFIG"
fi
if [ -n "$BLOCK_LIST" ]; then
OPT="$OPT -B $BLOCK_LIST"
fi
if [ -n "$BASE_ALLOC_FILE_IN" ]; then
OPT="$OPT -d $BASE_ALLOC_FILE_IN"
fi
if [ -n "$BASE_ALLOC_FILE_OUT" ]; then
OPT="$OPT -D $BASE_ALLOC_FILE_OUT"
fi
if [ -n "$LABEL" ]; then
OPT="$OPT -L $LABEL"
fi
if [ -n "$INODES" ]; then
OPT="$OPT -i $INODES"
fi
MAKE_EXT4FS_CMD="make_ext4fs $ENABLE_SPARSE_IMAGE -T $TIMESTAMP $OPT -l $SIZE $JOURNAL_FLAGS -a $MOUNT_POINT $OUTPUT_FILE $SRC_DIR $PRODUCT_OUT"
echo $MAKE_EXT4FS_CMD
$MAKE_EXT4FS_CMD
if [ $? -ne 0 ]; then
exit 4
fi
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