Justin Ibarra
32 lines
1.1 KiB
Python
32 lines
1.1 KiB
Python
# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
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# 2.0; you may not use this file except in compliance with the Elastic License
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# 2.0.
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"""Helper functionality for comparing semantic versions."""
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import re
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from typing import Iterable, Union
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class Version(tuple):
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def __new__(cls, version: Union[str, Iterable]) -> 'Version':
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if isinstance(version, (int, list, tuple)):
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version_class = tuple.__new__(cls, version)
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else:
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version_tuple = tuple(int(a) if a.isdigit() else a for a in re.split(r'[.-]', version))
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version_class = tuple.__new__(cls, version_tuple)
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return version_class
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def __str__(self):
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"""Convert back to a string."""
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recovered_str = str(self[0])
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for additional in self[1:]:
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if isinstance(additional, str):
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recovered_str += "-" + additional
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else:
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recovered_str += "." + str(additional)
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return recovered_str
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