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deactivate

deactivate_local(*, task_group_activity_id, task_group_id)

Deactivate a task group venv.

This function is run as a background task, therefore exceptions must be handled.

Parameters:

Name Type Description Default
task_group_id int
required
task_group_activity_id int
required
Source code in fractal_server/tasks/v2/local/deactivate.py
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def deactivate_local(
    *,
    task_group_activity_id: int,
    task_group_id: int,
) -> None:
    """
    Deactivate a task group venv.

    This function is run as a background task, therefore exceptions must be
    handled.

    Arguments:
        task_group_id:
        task_group_activity_id:
    """

    with TemporaryDirectory() as tmpdir:
        log_file_path = get_log_path(Path(tmpdir))
        logger = set_logger(
            logger_name=LOGGER_NAME,
            log_file_path=log_file_path,
        )

        with next(get_sync_db()) as db:

            # Get main objects from db
            activity = db.get(TaskGroupActivityV2, task_group_activity_id)
            task_group = db.get(TaskGroupV2, task_group_id)
            if activity is None or task_group is None:
                # Use `logging` directly
                logging.error(
                    "Cannot find database rows with "
                    f"{task_group_id=} and {task_group_activity_id=}:\n"
                    f"{task_group=}\n{activity=}. Exit."
                )
                return

            # Log some info
            logger.debug("START")

            for key, value in task_group.model_dump().items():
                logger.debug(f"task_group.{key}: {value}")

            # Check that the (local) task_group venv_path does exist
            if not Path(task_group.venv_path).exists():
                error_msg = f"{task_group.venv_path} does not exist."
                logger.error(error_msg)
                fail_and_cleanup(
                    task_group=task_group,
                    task_group_activity=activity,
                    logger_name=LOGGER_NAME,
                    log_file_path=log_file_path,
                    exception=FileNotFoundError(error_msg),
                    db=db,
                )
                return

            try:

                activity.status = TaskGroupActivityStatusV2.ONGOING
                activity = add_commit_refresh(obj=activity, db=db)
                if task_group.pip_freeze is None:
                    logger.warning(
                        "Recreate pip-freeze information, since "
                        f"{task_group.pip_freeze=}. NOTE: this should only "
                        "happen for task groups created before 2.9.0."
                    )
                    # Prepare replacements for templates
                    replacements = get_collection_replacements(
                        task_group=task_group,
                        python_bin="/not/applicable",
                    )

                    # Prepare common arguments for _customize_and_run_template
                    common_args = dict(
                        replacements=replacements,
                        script_dir=(
                            Path(task_group.path) / SCRIPTS_SUBFOLDER
                        ).as_posix(),
                        prefix=(
                            f"{int(time.time())}_"
                            f"{TaskGroupActivityActionV2.DEACTIVATE}_"
                        ),
                        logger_name=LOGGER_NAME,
                    )
                    pip_freeze_stdout = _customize_and_run_template(
                        template_filename="3_pip_freeze.sh",
                        **common_args,
                    )
                    # Update pip-freeze data
                    logger.info("Add pip freeze stdout to TaskGroupV2 - start")
                    activity.log = get_current_log(log_file_path)
                    activity = add_commit_refresh(obj=activity, db=db)
                    task_group.pip_freeze = pip_freeze_stdout
                    task_group = add_commit_refresh(obj=task_group, db=db)
                    logger.info("Add pip freeze stdout to TaskGroupV2 - end")

                if task_group.origin == "wheel" and (
                    task_group.wheel_path is None
                    or not Path(task_group.wheel_path).exists()
                ):

                    logger.error(
                        "Cannot find task_group wheel_path with "
                        f"{task_group_id=} :\n"
                        f"{task_group=}\n. Exit."
                    )
                    error_msg = f"{task_group.wheel_path} does not exist."
                    logger.error(error_msg)
                    fail_and_cleanup(
                        task_group=task_group,
                        task_group_activity=activity,
                        logger_name=LOGGER_NAME,
                        log_file_path=log_file_path,
                        exception=FileNotFoundError(error_msg),
                        db=db,
                    )
                    return

                # At this point we are sure that venv_path
                # wheel_path and pip_freeze exist
                shutil.rmtree(task_group.venv_path)

                activity.log = f"All good, {task_group.venv_path} removed."
                activity.status = TaskGroupActivityStatusV2.OK
                activity.timestamp_ended = get_timestamp()
                activity = add_commit_refresh(obj=activity, db=db)

            except Exception as e:
                fail_and_cleanup(
                    task_group=task_group,
                    task_group_activity=activity,
                    logger_name=LOGGER_NAME,
                    log_file_path=log_file_path,
                    exception=e,
                    db=db,
                )
        return