#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2018 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Copies proto files into the destination directory with proper modification.

For example, `./external_proto_generator.py -o foo a.proto b.proto` will
generate foo/a.proto and foo/b.proto.
"""

from __future__ import print_function

import argparse
import sys
import os


def get_parser():
  parser = argparse.ArgumentParser(description=__doc__)
  parser.add_argument('-o', dest='out_dir', required=True,
                      help='output directory')
  parser.add_argument('inputs', nargs='*')
  return parser


def main(argv):
  parser = get_parser()
  opts = parser.parse_args(argv)

  for input_path in opts.inputs:
    output_path = os.path.join(opts.out_dir, os.path.basename(input_path))
    with open(input_path, 'r') as f:
      code = f.read()
    code = code.replace('LITE_RUNTIME', 'CODE_SIZE')
    with open(output_path, 'w') as f:
      f.write(code)


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