text: #!/usr/bin/env python3
  
  # Copyright 2018 gRPC authors.
  #
  # 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.
  
  import os
  import subprocess
  import sys
  
  os.chdir(os.path.join(os.path.dirname(sys.argv[0]), '../../../test/cpp/qps'))
  subprocess.check_call(['./json_run_localhost_scenario_gen.py'])
  subprocess.check_call(['./qps_json_driver_scenario_gen.py'])
  subprocess.check_call(['buildifier', '-v', '-r', '.'])
  
  output = subprocess.check_output(['git', 'status', '--porcelain']).decode()
  qps_json_driver_bzl = 'test/cpp/qps/qps_json_driver_scenarios.bzl'
  json_run_localhost_bzl = 'test/cpp/qps/json_run_localhost_scenarios.bzl'
  
  if qps_json_driver_bzl in output or json_run_localhost_bzl in output:
      print('qps benchmark scenarios have been updated, please commit '
            'test/cpp/qps/qps_json_driver_scenarios.bzl and/or '
            'test/cpp/qps/json_run_localhost_scenarios.bzl')
      sys.exit(1)
  