#!/bin/bash
echo $@

DIR="$@"
DIR=$(readlink -f "$DIR")
DIR_SHORT=$(basename $DIR)
mkdir -p "$DIR"

OVERLAY_ROOT=$(readlink -f "${DIR}/..")/.squashfs/${DIR_SHORT}
OVERLAY_UPPER=${OVERLAY_ROOT}/upper
OVERLAY_LOWER=${OVERLAY_ROOT}/lower
OVERLAY_WORK=${OVERLAY_ROOT}/work
OVERLAY_TARG=$DIR

umount-squash-image $@ 1>/dev/null 2>/dev/null

sudo mount "${OVERLAY_ROOT}.img" "$OVERLAY_LOWER" -t squashfs -o loop
sudo mount -t overlay -o lowerdir="$OVERLAY_LOWER",upperdir="$OVERLAY_UPPER",workdir="$OVERLAY_WORK" none "$OVERLAY_TARG"

echo "SquashFS filesystem is mounted and ready,"