def setup_build(self, build_id, project_type_params, build_executor_start_index):
        self._logger.info('Executing setup for build {} (type: {}).', build_id, project_type_params.get('type'))
        self._current_build_id = build_id
        self._build_teardown_coin = SingleUseCoin()  # protects against build_teardown being executed multiple times

        # create an project_type instance for build-level operations
        self._project_type = util.create_project_type(project_type_params)

        # verify all executors are idle
        if not self._idle_executors.full():
            raise RuntimeError('Slave tried to setup build but not all executors are idle. ({}/{} executors idle.)'
                               .format(self._idle_executors.qsize(), self._num_executors))

        # Collect all the executors to pass to project_type.fetch_project(). This will create a new project_type for
        # each executor (for subjob-level operations).
        executors = list(self._idle_executors.queue)
        SafeThread(
            target=self._async_setup_build,
            name='Bld{}-Setup'.format(build_id),
            args=(executors, project_type_params, build_executor_start_index)
        ).start()
Usually called once per build to do build-specific setup. Will block any subjobs from executing until setup
dataset/ETHPy150Open box/ClusterRunner/app/slave/cluster_slave.py/ClusterSlave.setup_build