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3807c6d9a7
The way distutils.version.LooseVersion compare version are tricky, it treat all these ( "1.0-beta2", "1.0-rc1", "1.0A", "1.0p2" and "1.0pre1") as greater version than "1.0". This might be right for "1.0A" and "1.0p1" but not for the rest, also these version could be confusing, the "p" in "1.0p1" can be "pre" or "patched" version or even other meaning. Replace Looseversion with custom class, it uses regex to capture common version format like "1.1.1" or tag format using date like "2020-12-12" as release section, check for following known string/tags ( beta, rc, pre, dev, alpha, preview) as pre-release section, any other trailing characters are difficult to understand/define so ignore them. Compare release section and pre-release section saperately. included selftest for the version class. [YOCTO#14127] (From OE-Core rev: 6ced85e9ddd3569240f1e8b82130d1ac0fffbc40) Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
import collections
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import re
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import itertools
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_Version = collections.namedtuple(
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"_Version", ["release", "pre_l", "pre_v"]
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)
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class Version():
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_version_pattern = r"""v?(?:(?P<release>[0-9]+(?:[-\.][0-9]+)*)(?P<pre>[-_\.]?(?P<pre_l>(rc|alpha|beta|pre|preview|dev))[-_\.]?(?P<pre_v>[0-9]+)?)?)(.*)?"""
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_regex = re.compile(r"^\s*" + _version_pattern + r"\s*$", re.VERBOSE | re.IGNORECASE)
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def __init__(self, version):
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match = self._regex.search(version)
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if not match:
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raise Exception("Invalid version: '{0}'".format(version))
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self._version = _Version(
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release=tuple(int(i) for i in match.group("release").replace("-",".").split(".")),
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pre_l=match.group("pre_l"),
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pre_v=match.group("pre_v")
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)
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self._key = _cmpkey(
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self._version.release,
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self._version.pre_l,
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self._version.pre_v
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)
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def __le__(self, other):
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if not isinstance(other, Version):
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return NotImplemented
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return self._key <= other._key
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def __lt__(self, other):
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if not isinstance(other, Version):
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return NotImplemented
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return self._key < other._key
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def __ge__(self, other):
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if not isinstance(other, Version):
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return NotImplemented
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return self._key >= other._key
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def __gt__(self, other):
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if not isinstance(other, Version):
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return NotImplemented
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return self._key > other._key
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def _cmpkey(release, pre_l, pre_v):
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# remove leading 0
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_release = tuple(
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reversed(list(itertools.dropwhile(lambda x: x == 0, reversed(release))))
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)
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if pre_l is None and pre_v is None:
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_pre = float('inf')
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else:
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_pre = float(pre_v) if pre_v else float('-inf')
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return _release, _pre
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