1#!/usr/bin/env python 2# Copyright (C) 2019 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"""Script to wrap protoc execution. 16 17This script exists to work-around the bad depfile generation by protoc when 18generating descriptors.""" 19 20from __future__ import print_function 21import argparse 22import os 23import sys 24import subprocess 25import tempfile 26 27from codecs import open 28 29 30def main(): 31 parser = argparse.ArgumentParser() 32 parser.add_argument('--descriptor_set_out', default=None) 33 parser.add_argument('--dependency_out', default=None) 34 parser.add_argument('protoc') 35 args, remaining = parser.parse_known_args() 36 37 if args.dependency_out and args.descriptor_set_out: 38 with tempfile.NamedTemporaryFile() as t: 39 custom = [ 40 '--descriptor_set_out', args.descriptor_set_out, '--dependency_out', 41 t.name 42 ] 43 subprocess.check_call([args.protoc] + custom + remaining) 44 45 dependency_data = t.read().decode('utf-8') 46 47 with open(args.dependency_out, 'w', encoding='utf-8') as f: 48 f.write(args.descriptor_set_out + ":") 49 f.write(dependency_data) 50 else: 51 subprocess.check_call(sys.argv[1:]) 52 53 54if __name__ == '__main__': 55 sys.exit(main()) 56