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62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
# Copyright 2016 Google Inc. 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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"""Utility functions for working with files and directories."""
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import logging
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import os
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import shutil
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class Error(Exception):
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pass
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def CreateDirectories(path):
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"""Create directory if the path to a file doesn't exist.
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Args:
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path: The full file path to where a file will be placed.
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Raises:
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Error: Failure creating the requested directory.
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"""
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dirname = os.path.dirname(path)
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if not os.path.isdir(dirname):
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logging.debug('Creating directory %s ', dirname)
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try:
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os.makedirs(dirname)
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except (shutil.Error, OSError):
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raise Error('Unable to make directory: %s' % dirname)
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def Move(src, dst):
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"""Move a file from src to dst.
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Python's os.rename doesn't support overwrite on Windows.
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Args:
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src: The full file path to the source.
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dst: The full file path to the destination.
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Raises:
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Error: Failure moving the file.
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"""
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try:
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if os.path.exists(dst):
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os.remove(dst)
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os.rename(src, dst)
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except OSError as e:
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raise Error('Failure moving file from %s to %s. (%s)' % (src, dst, str(e)))
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