| # SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved. | |
| # SPDX-License-Identifier: Apache-2.0 | |
| # | |
| # 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. | |
| import os | |
| def get_most_recent_checkpoint(output_dir: str) -> str | None: | |
| """ | |
| Returns the most recent checkpoint directory from the given output directory. | |
| Args: | |
| output_dir (str): Path to the directory containing checkpoints. | |
| Returns: | |
| str | None: The name of the most recent checkpoint directory, or None if none exist. | |
| """ | |
| dirs = os.listdir(output_dir) | |
| dirs = [d for d in dirs if d.startswith("checkpoint")] | |
| dirs = sorted(dirs, key=lambda x: int(x.split("-")[1])) | |
| return dirs[-1] if dirs else None |