#!/bin/bash
# Copyright 2019 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Positional arguments: device_path
# device_path is an absolute file path to a block device. If the device
#     has no file system, make an ext4 file system. Otherwise, run fsck on
#     it.

set -o errexit

main() {
  local -r device="$1"
  local -r fstype="$(lsblk -o FSTYPE -n "${device}")"
  if [[ -z "${fstype}" ]]; then
    mkfs -F -t ext4 -E lazy_journal_init "${device}"
  else
    e2fsck -p "${device}"
  fi
}

main "$@"