#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Copyright (c) 2022 Huawei Device Co., Ltd.
# 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
#
#     http://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.
#


from __future__ import print_function
import argparse
import os.path
import subprocess
import sys

def main(argv):
  parser = argparse.ArgumentParser()
  parser.add_argument("--protoc", required=True,
                      help="Relative path to compiler.")

  parser.add_argument("--protos-dir", required=True,
                      help="protos in dir.")
  parser.add_argument("--cpp-out",
                      help="Output directory for standard C++ generator.")
  parser.add_argument("protos", nargs="+",
                      help="Input protobuf definition file(s).")

  options = parser.parse_args(argv)

  protos_dir = os.path.relpath(options.protos_dir)
  proto_files = options.protos

  # Generate protoc cmd.
  protoc_cmd = [os.path.realpath(options.protoc)]
  if options.cpp_out:
    cpp_out = options.cpp_out
    protoc_cmd += ["--cpp_out", cpp_out]

  protoc_cmd += ["--proto_path", protos_dir]
  protoc_cmd += [os.path.join(protos_dir, name) for name in proto_files]

  ret = subprocess.call(protoc_cmd)
  if ret != 0:
    raise RuntimeError("Protoc failed.")

if __name__ == "__main__":
    main(sys.argv[1:])