| # Copyright 2019 The Pigweed Authors |
| # |
| # 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 |
| # |
| # https://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. |
| """Prints an error for an incorrect usage of a pw_proto_library template.""" |
| |
| import argparse |
| import logging |
| import sys |
| |
| from typing import Optional |
| |
| from pw_cli.color import colors |
| import pw_cli.log |
| |
| _LOG = logging.getLogger(__name__) |
| |
| |
| def argument_parser( |
| parser: Optional[argparse.ArgumentParser] = None |
| ) -> argparse.ArgumentParser: |
| """Registers the script's arguments on an argument parser.""" |
| |
| if parser is None: |
| parser = argparse.ArgumentParser(description=__doc__) |
| |
| parser.add_argument('--dir', required=True, help='Target directory') |
| parser.add_argument('--root', required=True, help='GN root') |
| parser.add_argument('--target', required=True, help='Build target') |
| parser.add_argument('generators', |
| metavar='GEN', |
| nargs='+', |
| help='Supported protobuf generators') |
| |
| return parser |
| |
| |
| def main() -> int: |
| """Prints an error message.""" |
| |
| args = argument_parser().parse_args() |
| relative_dir = args.dir[len(args.root):].rstrip('/') |
| |
| _LOG.error('') |
| _LOG.error('The target %s is not a compiled protobuf library.', |
| colors().bold_white(args.target)) |
| _LOG.error('') |
| _LOG.error('A different target is generated for each active generator.') |
| _LOG.error('Depend on one of the following targets instead:') |
| _LOG.error('') |
| for gen in args.generators: |
| _LOG.error(' //%s:%s_%s', relative_dir, args.target, gen) |
| _LOG.error('') |
| |
| return 1 |
| |
| |
| if __name__ == '__main__': |
| pw_cli.log.install() |
| sys.exit(main()) |