forked from huawei/mindspore2022
35 lines
1.3 KiB
Python
35 lines
1.3 KiB
Python
# Copyright 2021 Huawei Technologies Co., Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ============================================================================
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"""file absolute path"""
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import os
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_NAME_MAX = 255
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_PATH_MAX = 4096
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def get_file_real_path(file_path: str):
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"""get file absolute path"""
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real_path = os.path.realpath(file_path)
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if len(real_path) > _PATH_MAX:
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raise ValueError(f"The length of dir path: {real_path} exceeds limit: {_PATH_MAX}")
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file_pos = real_path.rfind('/') + 1
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dir_path = real_path[0: file_pos]
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file_name = real_path[file_pos:]
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if len(file_name) > _NAME_MAX:
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raise ValueError(f"The length of file name: {file_name} exceeds limit: {_NAME_MAX}")
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if not os.path.exists(dir_path):
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os.makedirs(real_path[0: file_pos])
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return real_path
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