1 # Copyright 2019 The Pigweed Authors
3 # Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 # use this file except in compliance with the License. You may obtain a copy of
7 # https://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 # License for the specific language governing permissions and limitations under
14 """Script that emits a helpful error when a facade is used without a backend."""
21 """Parses command-line arguments."""
23 parser = argparse.ArgumentParser(
24 description='Emits an error when a facade has a null backend')
25 parser.add_argument('facade_name', help='The facade with a null backend')
26 return parser.parse_args()
31 print(f'ERROR: {args.facade_name} tried to build without a backend.')
32 print('If you are using this module, ensure you have configured a backend '
33 'properly. If you are NOT using this module, this error may have '
34 'been triggered by trying to build all targets.')
38 if __name__ == '__main__':