def compute_dataset_split_names_response()

in services/worker/src/worker/job_runners/dataset/split_names.py [0:0]

• 56 lines of code
• 11 McCabe index (conditional complexity)

def compute_dataset_split_names_response(dataset: str) -> tuple[DatasetSplitNamesResponse, float]:
    """
    Get the response of 'dataset-split-names' for one specific dataset on huggingface.co
    computed from response cached in 'config-split-names' step.

    Args:
        dataset (`str`):
            A namespace (user or an organization) and a repo name separated by a `/`.

    Raises:
        [~`libcommon.simple_cache.CachedArtifactError`]:
            If the the previous step gave an error.
        [~`libcommon.exceptions.PreviousStepFormatError`]:
            If the content of the previous step has not the expected format

    Returns:
        `tuple[DatasetSplitNamesResponse, float]`:
            An object with a list of split names for the dataset [splits],
            a list of pending configs to be processed [pending] and the list of errors [failed] by config.
    """
    logging.info(f"compute 'dataset-split-names' for {dataset=}")

    # Get the config names from the previous step
    config_names_response = get_previous_step_or_raise(kind="dataset-config-names", dataset=dataset)
    content = config_names_response["content"]
    if "config_names" not in content:
        raise PreviousStepFormatError("'dataset-config-names' did not return the expected content: 'config_names'.")
    config_names = [config_name_item["config"] for config_name_item in content["config_names"]]
    if any(not isinstance(config_name, str) for config_name in config_names):
        raise PreviousStepFormatError("Previous step 'dataset-config-names' did not return a list of config names.")

    try:
        splits: list[FullSplitItem] = []
        pending: list[FullConfigItem] = []
        failed: list[FailedConfigItem] = []
        total = 0
        for config in config_names:
            total += 1
            try:
                response = get_response(CONFIG_SPLIT_NAMES_KIND, dataset=dataset, config=config)
            except CachedArtifactNotFoundError:
                logging.debug(
                    "No response (successful or erroneous) found in cache for the previous step"
                    f" '{CONFIG_SPLIT_NAMES_KIND}' for this dataset."
                )
                pending.append(FullConfigItem({"dataset": dataset, "config": config}))
                continue
            if response["http_status"] != HTTPStatus.OK:
                logging.debug(f"No successful response found in the previous step {CONFIG_SPLIT_NAMES_KIND}.")
                failed.append(
                    FailedConfigItem(
                        {
                            "dataset": dataset,
                            "config": config,
                            "error": response["content"],
                        }
                    )
                )
                continue
            splits.extend(
                [
                    FullSplitItem({"dataset": dataset, "config": config, "split": split_content["split"]})
                    for split_content in response["content"]["splits"]
                ]
            )
    except Exception as e:
        raise PreviousStepFormatError("Previous step did not return the expected content.", e) from e

    progress = (total - len(pending)) / total if total else 1.0

    return (
        DatasetSplitNamesResponse(
            {
                "splits": splits,
                "pending": pending,
                "failed": failed,
            }
        ),
        progress,
    )