#!/bin/bash

# Copyright (c) 2013 The CoreOS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

if [[ ! -d /sys/fs/cgroup/systemd ]] || ! systemctl >/dev/null; then
    echo "This script must be run in a systemd based environment."
    echo "Namely not inside the cros_sdk chroot and not on Ubuntu."
    exit 1
fi

SCRIPT_ROOT=$(dirname $(readlink -f "$0"))
. "${SCRIPT_ROOT}/common.sh" || exit 1

DEFINE_string board "${DEFAULT_BOARD}" \
  "The board to build root to boot."
FLAGS "$@" || exit 1

if [[ -z "${FLAGS_board}" ]]; then
  echo "Error: --board is required."
  exit 1
fi

BOARD="${FLAGS_board}"
ROOT="${DEFAULT_CHROOT_DIR}/build/${BOARD}"
STATE="${ROOT}-STATE"

[ -d "$STATE" ] || sudo mkdir -p "$STATE"
sudo systemd-nspawn --boot --read-only --machine="$HOSTNAME-$BOARD" \
    --directory="$ROOT" --bind="$STATE:/media/state"