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comparison lib/python3.8/site-packages/setuptools/_vendor/packaging/utils.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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-1:000000000000 0:9e54283cc701
1 # This file is dual licensed under the terms of the Apache License, Version
2 # 2.0, and the BSD License. See the LICENSE file in the root of this repository
3 # for complete details.
4 from __future__ import absolute_import, division, print_function
5
6 import re
7
8 from .version import InvalidVersion, Version
9
10
11 _canonicalize_regex = re.compile(r"[-_.]+")
12
13
14 def canonicalize_name(name):
15 # This is taken from PEP 503.
16 return _canonicalize_regex.sub("-", name).lower()
17
18
19 def canonicalize_version(version):
20 """
21 This is very similar to Version.__str__, but has one subtle differences
22 with the way it handles the release segment.
23 """
24
25 try:
26 version = Version(version)
27 except InvalidVersion:
28 # Legacy versions cannot be normalized
29 return version
30
31 parts = []
32
33 # Epoch
34 if version.epoch != 0:
35 parts.append("{0}!".format(version.epoch))
36
37 # Release segment
38 # NB: This strips trailing '.0's to normalize
39 parts.append(re.sub(r"(\.0)+$", "", ".".join(str(x) for x in version.release)))
40
41 # Pre-release
42 if version.pre is not None:
43 parts.append("".join(str(x) for x in version.pre))
44
45 # Post-release
46 if version.post is not None:
47 parts.append(".post{0}".format(version.post))
48
49 # Development release
50 if version.dev is not None:
51 parts.append(".dev{0}".format(version.dev))
52
53 # Local version segment
54 if version.local is not None:
55 parts.append("+{0}".format(version.local))
56
57 return "".join(parts)