#!/usr/bin/env python
# Copyright 2018 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import argparse
import os
import stat
import string
import sys

def main():
  parser = argparse.ArgumentParser(
      description='Generate a script that invokes multiple flutter_test targets')
  parser.add_argument('--wd',
                      help='Path to the working directory, relative to that of the invocation file',
                      required=True)
  parser.add_argument('--out',
                      help='Path to the invocation file to generate',
                      required=True)
  parser.add_argument('--test',
                      action='append',
                      help='Adds a target to the list of test executables, relative to the working directory',
                      required=True)
  args = parser.parse_args()

  test_file = args.out
  test_dir = os.path.dirname(test_file)
  if not os.path.exists(test_dir):
    os.makedirs(test_dir)

  script = '''#!/bin/bash

# DO NOT EDIT
# This script is generated by:
#   //topaz/runtime/dart/gen_test_bundle_invocation.py
# See: //topaz/runtime/dart/dart_test.gni

'''
  script += 'cd "$(dirname $0)/%s"\n' % args.wd
  for test_executable in args.test:
    script += '%s "$@"\n' % test_executable

  with open(test_file, 'w') as file:
      file.write(script)
  permissions = (stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR |
                 stat.S_IRGRP | stat.S_IWGRP | stat.S_IXGRP |
                 stat.S_IROTH)
  os.chmod(test_file, permissions)


if __name__ == '__main__':
  sys.exit(main())