528ba92551
We only want the is_compatible() function in oslo.utils, so remove everything else from the module as we move it into place. Change-Id: Id63c7584bb3b6951897ca58dd0289b09b5d12f09
49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Helpers for comparing version strings.
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"""
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import logging
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import pkg_resources
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LOG = logging.getLogger(__name__)
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def is_compatible(requested_version, current_version, same_major=True):
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"""Determine whether `requested_version` is satisfied by
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`current_version`; in other words, `current_version` is >=
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`requested_version`.
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:param requested_version: version to check for compatibility
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:param current_version: version to check against
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:param same_major: if True, the major version must be identical between
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`requested_version` and `current_version`. This is used when a
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major-version difference indicates incompatibility between the two
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versions. Since this is the common-case in practice, the default is
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True.
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:returns: True if compatible, False if not
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"""
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requested_parts = pkg_resources.parse_version(requested_version)
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current_parts = pkg_resources.parse_version(current_version)
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if same_major and (requested_parts[0] != current_parts[0]):
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return False
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return current_parts >= requested_parts
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