#!/usr/bin/python
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import sys

def main(args):
  if len(args) != 2:
    sys.stderr.write('Invalid Usage: %s <source-root-directory>' %
                     sys.argv[0])
    return 1

  path = args[1]
  if os.path.exists(os.path.join(path, 'Dockerfile')):
    return 0
  else:
    return 1

if __name__ == '__main__':
  sys.exit(main(sys.argv))