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| # Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| from pathlib import Path | |
| from typing import Union | |
| try: | |
| import multistorageclient as msc | |
| HAVE_MSC = True | |
| except (ImportError, ModuleNotFoundError): | |
| msc = None | |
| HAVE_MSC = False | |
| MSC_PROTOCOL = "msc://" | |
| def is_multistorageclient_url(path: Union[str, Path]): | |
| """ | |
| Check if the path is a multistorageclient URL (e.g. msc://<profile>/<path>). | |
| Args: | |
| path: str, the path to check. | |
| Returns: | |
| bool, True if the path is a multistorageclient URL, False otherwise. | |
| """ | |
| if isinstance(path, Path): | |
| return False | |
| has_msc_prefix = path and str(path).startswith(MSC_PROTOCOL) | |
| if HAVE_MSC: | |
| return has_msc_prefix | |
| if not HAVE_MSC and has_msc_prefix: | |
| raise ValueError( | |
| "Multi-Storage Client is not installed. Please install it with " | |
| '"pip install multi-storage-client" to handle msc:// URLs.' | |
| ) | |
| return False | |
| def import_multistorageclient(): | |
| """Import multistorageclient if it is installed.""" | |
| if not HAVE_MSC: | |
| raise ValueError( | |
| "Multi-Storage Client is not installed. Please install it with " '"pip install multi-storage-client".' | |
| ) | |
| return msc | |