#!/bin/bash

if [[ -z $BANAN_DISK_IMAGE_PATH ]]; then
	echo  "You must set the BANAN_DISK_IMAGE_PATH environment variable" >&2
	exit 1
fi

if [[ -z $BANAN_SYSROOT_TAR ]]; then
	echo  "You must set the BANAN_SYSROOT_TAR environment variable" >&2
	exit 1
fi

if [[ -z $BANAN_BUILD_DIR ]]; then
	echo  "You must set the BANAN_BUILD_DIR environment variable" >&2
	exit 1
fi

if [[ "$1" == "full" ]] || [[ ! -f $BANAN_DISK_IMAGE_PATH ]]; then
	$BANAN_SCRIPT_DIR/image-create.sh
fi

LOOP_DEV="$(sudo losetup --show -f $BANAN_DISK_IMAGE_PATH)"
sudo partprobe $LOOP_DEV

ROOT_PARTITION="${LOOP_DEV}p2"
MOUNT_DIR="${MOUNT_DIR:-$BANAN_BUILD_DIR/bananmnt}"

sudo mkdir -p $MOUNT_DIR || { echo "Failed to create mount point dir."; exit 1; } 

sudo mount $ROOT_PARTITION $MOUNT_DIR

cd $MOUNT_DIR
sudo tar xf $BANAN_SYSROOT_TAR
cd

sudo umount $MOUNT_DIR || { echo "Failed to unmount banan mount."; exit 1; }

sudo losetup -d $LOOP_DEV || { echo "Failed to remove loop device for banan mount."; exit 1; }

sudo rm -rf "$MOUNT_DIR"