1#!/usr/bin/env python
2# Copyright (C) 2018 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16""" Script to check whether a given buildtool folder exists.
17
18Prints a user-friendly message if it doesn't.
19"""
20
21import os
22import sys
23import argparse
24
25def main():
26  parser = argparse.ArgumentParser(description='Test path for existence')
27  parser.add_argument('path', help='Path to test for existence')
28  parser.add_argument('--touch', help='Touch this path on success')
29  args = parser.parse_args()
30
31  if not os.path.exists(args.path):
32    err = '\x1b[31mCannot find %s/%s\nRun tools/install-build-deps --ui\x1b[0m'
33    print >>sys.stderr,  err % (os.path.abspath('.'), sys.argv[1])
34    return 127
35
36  if args.touch:
37    with open(args.touch, 'a'):
38      os.utime(args.touch, None)
39
40  return 0
41
42if __name__ == '__main__':
43  sys.exit(main())
44