200 lines
7.1 KiB
Python
200 lines
7.1 KiB
Python
# 本文件以 GNU Lesser General Public License v3.0（GNU LGPL v3) 开源协议进行授权 (谢谢狐狸写出这么好的MCDR)
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# 顺便说一句,我把所有的tab都改成了空格,因为我觉得空格比tab更好看(草,后半句是github copilot自动填充的)
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"""
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Plugin Version
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"""
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import re
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from typing import List, Callable, Tuple, Optional
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"""
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This part of code come from MCDReforged(https://github.com/Fallen-Breath/MCDReforged)
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Very thanks to Fallen_Breath and other coder who helped MCDR worked better
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GNU Lesser General Public License v3.0（GNU LGPL v3)
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# (hasn't some changes)
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"""
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# beta.3 -> (beta, 3), random -> (random, None)
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class ExtraElement:
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DIVIDER = '.'
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body: str
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num: Optional[int]
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def __init__(self, segment_str: str):
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segments = segment_str.rsplit(self.DIVIDER, 1)
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try:
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self.body, self.num = segments[0], int(segments[1])
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except (IndexError, ValueError):
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self.body, self.num = segment_str, None
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def __str__(self):
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if self.num is None:
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return self.body
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return '{}{}{}'.format(self.body, self.DIVIDER, self.num)
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def __lt__(self, other):
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if not isinstance(other, type(self)):
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raise TypeError()
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if self.num is None or other.num is None:
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return str(self) < str(other)
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else:
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return (self.body, self.num) < (other.body, other.num)
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class Version:
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EXTRA_ID_PATTERN = re.compile(r'|[-+0-9A-Za-z]+(\.[-+0-9A-Za-z]+)*')
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WILDCARDS = ('*', 'x', 'X')
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WILDCARD = -1
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component: List[int]
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has_wildcard: bool
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pre: Optional[ExtraElement]
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build: Optional[ExtraElement]
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def __init__(self, version_str: str, allow_wildcard=True):
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"""
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:param str version_str: the version str like '1.2.3-pre4+build.5'
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"""
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if not isinstance(version_str, str):
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raise VersionParsingError('Invalid input version string')
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def separate_extra(text, char) -> Tuple[str, Optional[ExtraElement]]:
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if char in text:
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text, extra_str = text.split(char, 1)
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if not self.EXTRA_ID_PATTERN.fullmatch(extra_str):
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raise VersionParsingError('Invalid build string: ' + extra_str)
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extra = ExtraElement(extra_str)
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else:
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extra = None
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return text, extra
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self.component = []
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self.has_wildcard = False
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version_str, self.build = separate_extra(version_str, '+')
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version_str, self.pre = separate_extra(version_str, '-')
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if len(version_str) == 0:
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raise VersionParsingError('Version string is empty')
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for comp in version_str.split('.'):
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if comp in self.WILDCARDS:
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self.component.append(self.WILDCARD)
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self.has_wildcard = True
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if not allow_wildcard:
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raise VersionParsingError('Wildcard {} is not allowed'.format(comp))
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else:
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try:
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num = int(comp)
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except ValueError:
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num = None
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if num is None:
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raise VersionParsingError('Invalid version number component: {}'.format(comp))
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if num < 0:
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raise VersionParsingError('Unsupported negatived number component: {}'.format(num))
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self.component.append(num)
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if len(self.component) == 0:
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raise VersionParsingError('Empty version string')
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def __str__(self):
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version_str = '.'.join(map(lambda c: str(c) if c != self.WILDCARD else self.WILDCARDS[0], self.component))
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if self.pre is not None:
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version_str += '-' + str(self.pre)
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if self.build is not None:
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version_str += '+' + str(self.build)
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return version_str
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def __getitem__(self, index):
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if index < len(self.component):
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return self.component[index]
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else:
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return self.WILDCARD if self.component[len(self.component) - 1] == self.WILDCARD else 0
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def __lt__(self, other):
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if not isinstance(other, Version):
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raise TypeError('Cannot compare between instances of {} and {}'.format(Version.__name__, type(other).__name__))
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for i in range(max(len(self.component), len(other.component))):
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if self[i] == self.WILDCARD or other[i] == self.WILDCARD:
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continue
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if self[i] != other[i]:
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return self[i] < other[i]
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if self.pre is not None and other.pre is not None:
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return self.pre < other.pre
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elif self.pre is not None:
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return not other.has_wildcard
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elif other.pre is not None:
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return False
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else:
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return False
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def __eq__(self, other):
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return not self < other and not other < self
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def __le__(self, other):
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return self == other or self < other
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def compare_to(self, other):
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if self < other:
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return -1
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elif self > other:
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return 1
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else:
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return 0
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DEFAULT_CRITERION_OPERATOR = '='
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class Criterion:
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def __init__(self, opt: str, base_version: Version, criterion: Callable[[Version, Version], bool]):
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self.opt = opt
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self.base_version = base_version
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self.criterion = criterion
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def test(self, target: str or Version):
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return self.criterion(self.base_version, target)
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def __str__(self):
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return '{}{}'.format(self.opt if self.opt != DEFAULT_CRITERION_OPERATOR else '', self.base_version)
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class VersionRequirement:
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CRITERIONS = {
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'<=': lambda base, ver: ver <= base,
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'>=': lambda base, ver: ver >= base,
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'<': lambda base, ver: ver < base,
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'>': lambda base, ver: ver > base,
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'=': lambda base, ver: ver == base,
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'^': lambda base, ver: ver >= base and ver[0] == base[0],
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'~': lambda base, ver: ver >= base and ver[0] == base[0] and ver[1] == base[1],
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}
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def __init__(self, requirements: str):
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if not isinstance(requirements, str):
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raise VersionParsingError('Requirements should be a str, not {}'.format(type(requirements).__name__))
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self.criterions = [] # type: List[Criterion]
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for requirement in requirements.split(' '):
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if len(requirement) > 0:
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for prefix, func in self.CRITERIONS.items():
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if requirement.startswith(prefix):
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opt = prefix
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base_version = requirement[len(prefix):]
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break
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else:
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opt = DEFAULT_CRITERION_OPERATOR
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base_version = requirement
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self.criterions.append(Criterion(opt, Version(base_version), self.CRITERIONS[opt]))
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def accept(self, version: Version or str):
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if isinstance(version, str):
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version = Version(version)
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for criterion in self.criterions:
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if not criterion.test(version):
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return False
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return True
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def __str__(self):
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return ' '.join(map(str, self.criterions))
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class VersionParsingError(ValueError):
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pass
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