60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
# Copyright 2018 The TensorFlow Authors. All Rights Reserved.
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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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# pylint: disable=g-import-not-at-top
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"""Utilities related to disk I/O."""
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import os
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def path_to_string(path):
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"""Convert `PathLike` objects to their string representation.
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If given a non-string typed path object, converts it to its string
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representation.
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If the object passed to `path` is not among the above, then it is
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returned unchanged. This allows e.g. passthrough of file objects
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through this function.
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Args:
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path: `PathLike` object that represents a path
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Returns:
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A string representation of the path argument, if Python support exists.
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"""
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if isinstance(path, os.PathLike):
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return os.fspath(path)
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return path
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def ask_to_proceed_with_overwrite(filepath):
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"""Produces a prompt asking about overwriting a file.
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Args:
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filepath: the path to the file to be overwritten.
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Returns:
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True if we can proceed with overwrite, False otherwise.
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"""
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overwrite = input('[WARNING] %s already exists - overwrite? '
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'[y/n]' % (filepath)).strip().lower()
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while overwrite not in ('y', 'n'):
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overwrite = input('Enter "y" (overwrite) or "n" '
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'(cancel).').strip().lower()
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if overwrite == 'n':
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return False
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print('[TIP] Next time specify overwrite=True!')
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return True
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