def _single_run()

in benchmark.py [0:0]

• 21 lines of code
• 4 McCabe index (conditional complexity)

def _single_run(bazel_bin_path,
                command,
                options,
                targets,
                startup_options):
  """Runs the benchmarking for a combination of (bazel version, project version).

  Args:
    bazel_bin_path: the path to the bazel binary to be run.
    command: the command to be run with Bazel.
    options: the list of options.
    targets: the list of targets.
    startup_options: the list of target options.

  Returns:
    A result object:
    {
      'wall': 1.000,
      'cpu': 1.000,
      'system': 1.000,
      'memory': 1.000,
      'exit_status': 0,
      'started_at': datetime.datetime(2019, 1, 1, 0, 0, 0, 000000),
    }
  """
  bazel = Bazel(bazel_bin_path, startup_options)

  default_arguments = collections.defaultdict(list)

  # Prepend some default options if the command is 'build'.
  # The order in which the options appear matters.
  if command == 'build':
    options = options + ['--nostamp', '--noshow_progress', '--color=no']
  measurements = bazel.command(command, args=options + targets)

  if measurements != None:
      logger.log('Results of this run: wall: ' +
              '%.3fs, cpu %.3fs, system %.3fs, memory %.3fMB, exit_status: %d' % (
                  measurements['wall'],
                  measurements['cpu'],
                  measurements['system'],
                  measurements['memory'],
                  measurements['exit_status']))

  # Get back to a clean state.
  bazel.command('clean', ['--color=no'])
  bazel.command('shutdown')
  return measurements