65 lines
1.7 KiB
Python
65 lines
1.7 KiB
Python
# -*- coding: utf-8 -*- #
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# Copyright 2016 Google LLC. 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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"""Utilities for computing copy operations from command arguments."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import unicode_literals
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import os
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import re
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class Path(object):
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"""Wrapper to help with dealing with local and GCS paths uniformly."""
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_INVALID_PATH_FORMAT = r'{sep}\.+({sep}|$)'
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def __init__(self, path):
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self.path = path
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@property
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def is_remote(self):
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return self.path.startswith('gs://')
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@property
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def is_dir_like(self):
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if self.is_remote:
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return self.path.endswith('/')
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return self.path.endswith(os.sep)
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def Join(self, part):
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if self.is_remote:
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return Path(self.path.rstrip('/') + '/' + part.lstrip('/'))
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return Path(os.path.join(self.path, part))
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def IsPathSafe(self):
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if self.is_remote:
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sep = '/'
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else:
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# Need \\\\ for the regex to work with nt (Windows) paths as intended.
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sep = os.sep * 2 if os.name == 'nt' else os.sep
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return not bool(re.search(
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Path._INVALID_PATH_FORMAT.format(sep=sep),
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self.path))
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def __str__(self):
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return self.path
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def __repr__(self):
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return self.path
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