| # Copyright 2019 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Helper script for use by GN to encode/decode proto files. The protoc tool |
| requires using stdin/stdout for the --encode/--decode options, but that form |
| of processing is not supported by GN. |
| """ |
| |
| import argparse |
| import subprocess |
| |
| def Main(): |
| parser = argparse.ArgumentParser() |
| parser.add_argument('--protoc', help='Path to protoc compiler.') |
| parser.add_argument('--infile', required=True, |
| help='Path to input file that will be used as stdin.') |
| parser.add_argument('--outfile', required=True, |
| help='Path to output file that will be used as stdout.') |
| args, passthrough_args = parser.parse_known_args() |
| |
| stdin = open(args.infile, 'r') |
| stdout = open(args.outfile, 'w') |
| |
| subprocess.check_call([args.protoc] + passthrough_args, stdin=stdin, |
| stdout=stdout) |
| |
| |
| if __name__ == '__main__': |
| Main() |
