0588ba20d9
Sometimes we have to use the latest code instead of the latest release to test upcoming changes (eg. sqlalchemy). In such case the version string might contain its development status such as beta, and causes failure while parsing the version string. This makes the parse logic ignore the development status suffix to avoid the failure. Closes-Bug: #2042886 Change-Id: I27c14ede026c5600173047b1a0892a02a54dbb06
93 lines
2.9 KiB
Python
93 lines
2.9 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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.. versionadded:: 1.6
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"""
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import functools
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import re
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import packaging.version
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from oslo_utils._i18n import _
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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 = packaging.version.Version(requested_version)
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current = packaging.version.Version(current_version)
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if same_major:
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if requested.major != current.major:
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return False
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return current >= requested
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def convert_version_to_int(version):
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"""Convert a version to an integer.
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*version* must be a string with dots or a tuple of integers.
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.. versionadded:: 2.0
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"""
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try:
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if isinstance(version, str):
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version = convert_version_to_tuple(version)
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if isinstance(version, tuple):
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return functools.reduce(lambda x, y: (x * 1000) + y, version)
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except Exception as ex:
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msg = _("Version %s is invalid.") % version
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raise ValueError(msg) from ex
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def convert_version_to_str(version_int):
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"""Convert a version integer to a string with dots.
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.. versionadded:: 2.0
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"""
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version_numbers = []
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factor = 1000
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while version_int != 0:
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version_number = version_int - (version_int // factor * factor)
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version_numbers.insert(0, str(version_number))
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version_int = version_int // factor
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return '.'.join(map(str, version_numbers))
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def convert_version_to_tuple(version_str):
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"""Convert a version string with dots to a tuple.
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.. versionadded:: 2.0
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"""
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version_str = re.sub(r'(\d+)(a|alpha|b|beta|rc)\d+$', '\\1', version_str)
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return tuple(int(part) for part in version_str.split('.'))
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