with open(_TF_BAZELRC, 'a') as f:
    f.write(line + '\n')


def write_action_env_to_bazelrc(var_name, var):
  write_to_bazelrc('build --action_env {}="{}"'.format(var_name, str(var)))


def write_repo_env_to_bazelrc(config_name, var_name, var):
  write_to_bazelrc(
      'build:{} --repo_env {}="{}"'.format(config_name, var_name, str(var))
  )


def run_shell(cmd, allow_non_zero=False, stderr=None):