blob: a1d7c292aff3e03c156444ee0660487d7b3f50e9 [file] [log] [blame]
Andrew Geisslerd1e89492021-02-12 15:35:20 -06001import collections
2import re
3import itertools
4import functools
5
6_Version = collections.namedtuple(
7 "_Version", ["release", "patch_l", "pre_l", "pre_v"]
8)
9
10@functools.total_ordering
11class Version():
12
13 def __init__(self, version, suffix=None):
Andrew Geissler95ac1b82021-03-31 14:34:31 -050014
15 suffixes = ["alphabetical", "patch"]
16
Andrew Geisslerd1e89492021-02-12 15:35:20 -060017 if str(suffix) == "alphabetical":
18 version_pattern = r"""r?v?(?:(?P<release>[0-9]+(?:[-\.][0-9]+)*)(?P<patch>[-_\.]?(?P<patch_l>[a-z]))?(?P<pre>[-_\.]?(?P<pre_l>(rc|alpha|beta|pre|preview|dev))[-_\.]?(?P<pre_v>[0-9]+)?)?)(.*)?"""
Andrew Geissler95ac1b82021-03-31 14:34:31 -050019 elif str(suffix) == "patch":
20 version_pattern = r"""r?v?(?:(?P<release>[0-9]+(?:[-\.][0-9]+)*)(?P<patch>[-_\.]?(p|patch)(?P<patch_l>[0-9]+))?(?P<pre>[-_\.]?(?P<pre_l>(rc|alpha|beta|pre|preview|dev))[-_\.]?(?P<pre_v>[0-9]+)?)?)(.*)?"""
Andrew Geisslerd1e89492021-02-12 15:35:20 -060021 else:
22 version_pattern = r"""r?v?(?:(?P<release>[0-9]+(?:[-\.][0-9]+)*)(?P<pre>[-_\.]?(?P<pre_l>(rc|alpha|beta|pre|preview|dev))[-_\.]?(?P<pre_v>[0-9]+)?)?)(.*)?"""
23 regex = re.compile(r"^\s*" + version_pattern + r"\s*$", re.VERBOSE | re.IGNORECASE)
24
25 match = regex.search(version)
26 if not match:
27 raise Exception("Invalid version: '{0}'".format(version))
28
29 self._version = _Version(
30 release=tuple(int(i) for i in match.group("release").replace("-",".").split(".")),
Andrew Geissler95ac1b82021-03-31 14:34:31 -050031 patch_l=match.group("patch_l") if str(suffix) in suffixes and match.group("patch_l") else "",
Andrew Geisslerd1e89492021-02-12 15:35:20 -060032 pre_l=match.group("pre_l"),
33 pre_v=match.group("pre_v")
34 )
35
36 self._key = _cmpkey(
37 self._version.release,
38 self._version.patch_l,
39 self._version.pre_l,
40 self._version.pre_v
41 )
42
43 def __eq__(self, other):
44 if not isinstance(other, Version):
45 return NotImplemented
46 return self._key == other._key
47
48 def __gt__(self, other):
49 if not isinstance(other, Version):
50 return NotImplemented
51 return self._key > other._key
52
53def _cmpkey(release, patch_l, pre_l, pre_v):
54 # remove leading 0
55 _release = tuple(
56 reversed(list(itertools.dropwhile(lambda x: x == 0, reversed(release))))
57 )
58
59 _patch = patch_l.upper()
60
61 if pre_l is None and pre_v is None:
62 _pre = float('inf')
63 else:
64 _pre = float(pre_v) if pre_v else float('-inf')
65 return _release, _patch, _pre