def parse_args()

in build-script-helper.py [0:0]

• 24 lines of code
• 5 McCabe index (conditional complexity)

def parse_args(args):
  parser = argparse.ArgumentParser(prog='BUILD-SCRIPT-HELPER.PY')

  parser.add_argument('--package-dir', default='SourceKitStressTester')
  parser.add_argument('-v', '--verbose', action='store_true', help='log executed commands')
  parser.add_argument('--prefix', help='install path')
  parser.add_argument('--config', default='debug')
  parser.add_argument('--build-dir', default='.build')
  parser.add_argument('--multiroot-data-file', help='path to an Xcode workspace to create a unified build of SwiftSyntax with other projects.')
  parser.add_argument('--toolchain', required=True, help='the toolchain to use when building this package')
  parser.add_argument('--update', action='store_true', help='update all SwiftPM dependencies')
  parser.add_argument('--no-local-deps', action='store_true', help='use normal remote dependencies when building')
  parser.add_argument('--sourcekitd-dir', help='directory containing sourcekit library, defaults to <toolchain>/lib')
  parser.add_argument('build_actions', help="Extra actions to perform. Can be any number of the following", choices=['all', 'build', 'test', 'install', 'generate-xcodeproj'], nargs="*", default=['build'])

  parsed = parser.parse_args(args)

  if ("install" in parsed.build_actions or "all" in parsed.build_actions) and not parsed.prefix:
    ArgumentParser.error("'--prefix' is required with the install action")
  parsed.swift_exec = os.path.join(parsed.toolchain, 'bin', 'swift')

  if not parsed.sourcekitd_dir:
    parsed.sourcekitd_dir = os.path.join(parsed.toolchain, 'lib')

  # Convert package_dir to absolute path, relative to root of repo.
  repo_path = os.path.dirname(__file__)
  parsed.package_dir = os.path.realpath(
                        os.path.join(repo_path, parsed.package_dir))

  # Convert build_dir to absolute path, relative to package_dir.
  parsed.build_dir = os.path.join(parsed.package_dir, parsed.build_dir)

  return parsed