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How to use schedule_tasks_to_be_run method in Lemoncheesecake

Best Python code snippet using lemoncheesecake

task.py

Source:task.py

...79        skip_task(task, context, completed_task_queue, reason=skip_reason)80        return81    # run task when all conditions are met82    run_task(task, context, completed_task_queue)83def schedule_tasks_to_be_run(tasks, context, pool, completed_tasks_queue):84    for task in tasks:85        pool.apply_async(handle_task, args=(task, context, completed_tasks_queue))86def skip_task(task, context, completed_task_queue, reason=""):87    _debug("skip task %s" % task)88    try:89        task.skip(context, reason)90    except Exception:91        task.result = TaskResultException(serialize_current_exception())92    else:93        task.result = TaskResultSkipped(reason)94    completed_task_queue.put(task)95def skip_all_tasks(tasks, remaining_tasks, completed_tasks, context, pool, completed_tasks_queue, reason):96    # schedule all tasks to be skipped...97    for task in remaining_tasks:98        pool.apply_async(skip_task, args=(task, context, completed_tasks_queue, reason))99    # ... and wait for their completion100    while len(completed_tasks) != len(tasks):101        completed_task = completed_tasks_queue.get()102        completed_tasks.add(completed_task)103def run_tasks(tasks, context, nb_threads=1):104    for task in tasks:105        check_task_dependencies(task)106    remaining_tasks = list(tasks)107    completed_tasks = set()108    pool = Pool(nb_threads)109    completed_tasks_queue = Queue()110    try:111        schedule_tasks_to_be_run(112            pop_runnable_tasks(remaining_tasks, completed_tasks, nb_threads),113            context, pool, completed_tasks_queue114        )115        while len(completed_tasks) != len(tasks):116            # wait for one task to complete117            completed_task = completed_tasks_queue.get()118            completed_tasks.add(completed_task)119            # schedule tasks to be run waiting for task success or simple completion120            tasks_to_be_run = pop_runnable_tasks(remaining_tasks, completed_tasks, nb_threads)121            schedule_tasks_to_be_run(tasks_to_be_run, context, pool, completed_tasks_queue)122    except KeyboardInterrupt:123        context.enable_task_abort()124        skip_all_tasks(125            tasks, remaining_tasks, completed_tasks, context, pool, completed_tasks_queue,126            _KEYBOARD_INTERRUPT_ERROR_MESSAGE127        )128    finally:129        pool.close()130    exceptions = [task.result.stacktrace for task in tasks if isinstance(task.result, TaskResultException)]131    if exceptions:132        raise LemoncheesecakeException(133            "Error(s) while running tasks, got exceptions:\n%s" % "\n".join(exceptions)134        )135def check_task_dependencies(task, task_path=()):...

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