1# Copyright 2019 The Pigweed Authors
2#
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
5# the License at
6#
7#     https://www.apache.org/licenses/LICENSE-2.0
8#
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
13# the License.
14"""Outputs a ReST warning about the size toolchains variable being empty."""
15
16import os
17import sys
18
19_NO_TOOLCHAIN_ERROR: str = '''
20.. warning::
21
22  The ``pw_size_report_toolchains`` build variable is empty for this target.
23  Size reports will not be generated.
24
25  See :ref:`bloat-howto` for details on how to set up size reports.
26'''
27
28
29def main() -> int:
30    os.makedirs(os.path.dirname(sys.argv[1]), exist_ok=True)
31    with open(sys.argv[1], 'w') as fd:
32        fd.write(_NO_TOOLCHAIN_ERROR)
33    return 0
34
35
36if __name__ == '__main__':
37    sys.exit(main())
38