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https://github.com/openvswitch/ovs
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26bb0f3129
This patch does minor style cleanups to the code in the python and tests directory. There's other code floating around that could use similar treatment, but updating it is not convenient at the moment.
45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
# Copyright (c) 2010, 2011 Nicira Networks
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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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import os
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import os.path
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import sys
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PROGRAM_NAME = os.path.basename(sys.argv[0])
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def abs_file_name(dir_, file_name):
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"""If 'file_name' starts with '/', returns a copy of 'file_name'.
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Otherwise, returns an absolute path to 'file_name' considering it relative
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to 'dir_', which itself must be absolute. 'dir_' may be None or the empty
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string, in which case the current working directory is used.
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Returns None if 'dir_' is None and getcwd() fails.
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This differs from os.path.abspath() in that it will never change the
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meaning of a file name."""
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if file_name.startswith('/'):
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return file_name
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else:
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if dir_ is None or dir_ == "":
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try:
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dir_ = os.getcwd()
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except OSError:
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return None
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if dir_.endswith('/'):
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return dir_ + file_name
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else:
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return "%s/%s" % (dir_, file_name)
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