def create_build_configuration()

in configure.py [0:0]
56 lines of code
6 McCabe index (conditional complexity)

def create_build_configuration():
  """Main function to create build configuration."""
  if os.path.isfile(_BAZELRC):
    os.remove(_BAZELRC)
  if os.path.isfile(_BAZEL_QUERY):
    os.remove(_BAZEL_QUERY)
  if os.path.isfile(_PYTHON_BIN_PATH):
    os.remove(_PYTHON_BIN_PATH)

  environ_cp = dict(os.environ)
  setup_python(environ_cp)

  print()
  print('Configuring BigQuery ML Utils to be built from source...')

  pip_install_options = ['--upgrade']
  parser = argparse.ArgumentParser()
  parser.add_argument('--quiet', action='store_true', help='Give less output.')
  parser.add_argument(
      '--no-deps',
      action='store_true',
      help='Do not check and install Python dependencies.',
  )
  args = parser.parse_args()
  if args.quiet:
    pip_install_options.append('--quiet')

  with open('requirements.txt') as f:
    required_packages = f.read().splitlines()

  print()
  if args.no_deps:
    print('> Using pre-installed Tensorflow.')
  else:
    print('> Installing', required_packages)
    install_cmd = [environ_cp['PYTHON_BIN_PATH'], '-m', 'pip', 'install']
    install_cmd.extend(pip_install_options)
    install_cmd.extend(required_packages)
    subprocess.check_call(install_cmd)

  logging.disable(logging.WARNING)

  import tensorflow.compat.v2 as tf  # pylint: disable=g-import-not-at-top

  # pylint: disable=invalid-name
  _TF_CFLAGS = tf.sysconfig.get_compile_flags()
  _TF_LFLAGS = tf.sysconfig.get_link_flags()
  _TF_CXX11_ABI_FLAG = tf.sysconfig.CXX11_ABI_FLAG

  _TF_SHARED_LIBRARY_NAME = generate_shared_lib_name(_TF_LFLAGS)
  _TF_HEADER_DIR = _TF_CFLAGS[0][2:]
  _TF_SHARED_LIBRARY_DIR = _TF_LFLAGS[0][2:]
  # pylint: enable=invalid-name

  write_action_env('TF_HEADER_DIR', _TF_HEADER_DIR)
  write_action_env('TF_SHARED_LIBRARY_DIR', _TF_SHARED_LIBRARY_DIR)
  write_action_env('TF_SHARED_LIBRARY_NAME', _TF_SHARED_LIBRARY_NAME)
  write_action_env('TF_CXX11_ABI_FLAG', _TF_CXX11_ABI_FLAG)
  write_action_env('BAZEL_CXXOPTS', '-std=c++17')

  write_to_bazelrc('build --spawn_strategy=standalone')
  write_to_bazelrc('build --strategy=Genrule=standalone')
  write_to_bazelrc('build --experimental_repo_remote_exec')
  write_to_bazelrc('build --experimental_cc_shared_library')
  write_to_bazelrc('build -c opt')

  print()
  print('Build configurations successfully written to', _BAZELRC)
  print()

  with open(_BAZEL_QUERY, 'a') as f:
    f.write('bazel query "$@"')