+++ /dev/null
-# This file is dual licensed under the terms of the Apache License, Version
-# 2.0, and the BSD License. See the LICENSE file in the root of this repository
-# for complete details.
-
-import collections
-import itertools
-import re
-import warnings
-from typing import Callable, Iterator, List, Optional, SupportsInt, Tuple, Union
-
-from ._structures import Infinity, InfinityType, NegativeInfinity, NegativeInfinityType
-
-__all__ = ["parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN"]
-
-InfiniteTypes = Union[InfinityType, NegativeInfinityType]
-PrePostDevType = Union[InfiniteTypes, Tuple[str, int]]
-SubLocalType = Union[InfiniteTypes, int, str]
-LocalType = Union[
- NegativeInfinityType,
- Tuple[
- Union[
- SubLocalType,
- Tuple[SubLocalType, str],
- Tuple[NegativeInfinityType, SubLocalType],
- ],
- ...,
- ],
-]
-CmpKey = Tuple[
- int, Tuple[int, ...], PrePostDevType, PrePostDevType, PrePostDevType, LocalType
-]
-LegacyCmpKey = Tuple[int, Tuple[str, ...]]
-VersionComparisonMethod = Callable[
- [Union[CmpKey, LegacyCmpKey], Union[CmpKey, LegacyCmpKey]], bool
-]
-
-_Version = collections.namedtuple(
- "_Version", ["epoch", "release", "dev", "pre", "post", "local"]
-)
-
-
-def parse(version: str) -> Union["LegacyVersion", "Version"]:
- """
- Parse the given version string and return either a :class:`Version` object
- or a :class:`LegacyVersion` object depending on if the given version is
- a valid PEP 440 version or a legacy version.
- """
- try:
- return Version(version)
- except InvalidVersion:
- return LegacyVersion(version)
-
-
-class InvalidVersion(ValueError):
- """
- An invalid version was found, users should refer to PEP 440.
- """
-
-
-class _BaseVersion:
- _key: Union[CmpKey, LegacyCmpKey]
-
- def __hash__(self) -> int:
- return hash(self._key)
-
- # Please keep the duplicated `isinstance` check
- # in the six comparisons hereunder
- # unless you find a way to avoid adding overhead function calls.
- def __lt__(self, other: "_BaseVersion") -> bool:
- if not isinstance(other, _BaseVersion):
- return NotImplemented
-
- return self._key < other._key
-
- def __le__(self, other: "_BaseVersion") -> bool:
- if not isinstance(other, _BaseVersion):
- return NotImplemented
-
- return self._key <= other._key
-
- def __eq__(self, other: object) -> bool:
- if not isinstance(other, _BaseVersion):
- return NotImplemented
-
- return self._key == other._key
-
- def __ge__(self, other: "_BaseVersion") -> bool:
- if not isinstance(other, _BaseVersion):
- return NotImplemented
-
- return self._key >= other._key
-
- def __gt__(self, other: "_BaseVersion") -> bool:
- if not isinstance(other, _BaseVersion):
- return NotImplemented
-
- return self._key > other._key
-
- def __ne__(self, other: object) -> bool:
- if not isinstance(other, _BaseVersion):
- return NotImplemented
-
- return self._key != other._key
-
-
-class LegacyVersion(_BaseVersion):
- def __init__(self, version: str) -> None:
- self._version = str(version)
- self._key = _legacy_cmpkey(self._version)
-
- warnings.warn(
- "Creating a LegacyVersion has been deprecated and will be "
- "removed in the next major release",
- DeprecationWarning,
- )
-
- def __str__(self) -> str:
- return self._version
-
- def __repr__(self) -> str:
- return f"<LegacyVersion('{self}')>"
-
- @property
- def public(self) -> str:
- return self._version
-
- @property
- def base_version(self) -> str:
- return self._version
-
- @property
- def epoch(self) -> int:
- return -1
-
- @property
- def release(self) -> None:
- return None
-
- @property
- def pre(self) -> None:
- return None
-
- @property
- def post(self) -> None:
- return None
-
- @property
- def dev(self) -> None:
- return None
-
- @property
- def local(self) -> None:
- return None
-
- @property
- def is_prerelease(self) -> bool:
- return False
-
- @property
- def is_postrelease(self) -> bool:
- return False
-
- @property
- def is_devrelease(self) -> bool:
- return False
-
-
-_legacy_version_component_re = re.compile(r"(\d+ | [a-z]+ | \.| -)", re.VERBOSE)
-
-_legacy_version_replacement_map = {
- "pre": "c",
- "preview": "c",
- "-": "final-",
- "rc": "c",
- "dev": "@",
-}
-
-
-def _parse_version_parts(s: str) -> Iterator[str]:
- for part in _legacy_version_component_re.split(s):
- part = _legacy_version_replacement_map.get(part, part)
-
- if not part or part == ".":
- continue
-
- if part[:1] in "0123456789":
- # pad for numeric comparison
- yield part.zfill(8)
- else:
- yield "*" + part
-
- # ensure that alpha/beta/candidate are before final
- yield "*final"
-
-
-def _legacy_cmpkey(version: str) -> LegacyCmpKey:
-
- # We hardcode an epoch of -1 here. A PEP 440 version can only have a epoch
- # greater than or equal to 0. This will effectively put the LegacyVersion,
- # which uses the defacto standard originally implemented by setuptools,
- # as before all PEP 440 versions.
- epoch = -1
-
- # This scheme is taken from pkg_resources.parse_version setuptools prior to
- # it's adoption of the packaging library.
- parts: List[str] = []
- for part in _parse_version_parts(version.lower()):
- if part.startswith("*"):
- # remove "-" before a prerelease tag
- if part < "*final":
- while parts and parts[-1] == "*final-":
- parts.pop()
-
- # remove trailing zeros from each series of numeric parts
- while parts and parts[-1] == "00000000":
- parts.pop()
-
- parts.append(part)
-
- return epoch, tuple(parts)
-
-
-# Deliberately not anchored to the start and end of the string, to make it
-# easier for 3rd party code to reuse
-VERSION_PATTERN = r"""
- v?
- (?:
- (?:(?P<epoch>[0-9]+)!)? # epoch
- (?P<release>[0-9]+(?:\.[0-9]+)*) # release segment
- (?P<pre> # pre-release
- [-_\.]?
- (?P<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
- [-_\.]?
- (?P<pre_n>[0-9]+)?
- )?
- (?P<post> # post release
- (?:-(?P<post_n1>[0-9]+))
- |
- (?:
- [-_\.]?
- (?P<post_l>post|rev|r)
- [-_\.]?
- (?P<post_n2>[0-9]+)?
- )
- )?
- (?P<dev> # dev release
- [-_\.]?
- (?P<dev_l>dev)
- [-_\.]?
- (?P<dev_n>[0-9]+)?
- )?
- )
- (?:\+(?P<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)*))? # local version
-"""
-
-
-class Version(_BaseVersion):
-
- _regex = re.compile(r"^\s*" + VERSION_PATTERN + r"\s*$", re.VERBOSE | re.IGNORECASE)
-
- def __init__(self, version: str) -> None:
-
- # Validate the version and parse it into pieces
- match = self._regex.search(version)
- if not match:
- raise InvalidVersion(f"Invalid version: '{version}'")
-
- # Store the parsed out pieces of the version
- self._version = _Version(
- epoch=int(match.group("epoch")) if match.group("epoch") else 0,
- release=tuple(int(i) for i in match.group("release").split(".")),
- pre=_parse_letter_version(match.group("pre_l"), match.group("pre_n")),
- post=_parse_letter_version(
- match.group("post_l"), match.group("post_n1") or match.group("post_n2")
- ),
- dev=_parse_letter_version(match.group("dev_l"), match.group("dev_n")),
- local=_parse_local_version(match.group("local")),
- )
-
- # Generate a key which will be used for sorting
- self._key = _cmpkey(
- self._version.epoch,
- self._version.release,
- self._version.pre,
- self._version.post,
- self._version.dev,
- self._version.local,
- )
-
- def __repr__(self) -> str:
- return f"<Version('{self}')>"
-
- def __str__(self) -> str:
- parts = []
-
- # Epoch
- if self.epoch != 0:
- parts.append(f"{self.epoch}!")
-
- # Release segment
- parts.append(".".join(str(x) for x in self.release))
-
- # Pre-release
- if self.pre is not None:
- parts.append("".join(str(x) for x in self.pre))
-
- # Post-release
- if self.post is not None:
- parts.append(f".post{self.post}")
-
- # Development release
- if self.dev is not None:
- parts.append(f".dev{self.dev}")
-
- # Local version segment
- if self.local is not None:
- parts.append(f"+{self.local}")
-
- return "".join(parts)
-
- @property
- def epoch(self) -> int:
- _epoch: int = self._version.epoch
- return _epoch
-
- @property
- def release(self) -> Tuple[int, ...]:
- _release: Tuple[int, ...] = self._version.release
- return _release
-
- @property
- def pre(self) -> Optional[Tuple[str, int]]:
- _pre: Optional[Tuple[str, int]] = self._version.pre
- return _pre
-
- @property
- def post(self) -> Optional[int]:
- return self._version.post[1] if self._version.post else None
-
- @property
- def dev(self) -> Optional[int]:
- return self._version.dev[1] if self._version.dev else None
-
- @property
- def local(self) -> Optional[str]:
- if self._version.local:
- return ".".join(str(x) for x in self._version.local)
- else:
- return None
-
- @property
- def public(self) -> str:
- return str(self).split("+", 1)[0]
-
- @property
- def base_version(self) -> str:
- parts = []
-
- # Epoch
- if self.epoch != 0:
- parts.append(f"{self.epoch}!")
-
- # Release segment
- parts.append(".".join(str(x) for x in self.release))
-
- return "".join(parts)
-
- @property
- def is_prerelease(self) -> bool:
- return self.dev is not None or self.pre is not None
-
- @property
- def is_postrelease(self) -> bool:
- return self.post is not None
-
- @property
- def is_devrelease(self) -> bool:
- return self.dev is not None
-
- @property
- def major(self) -> int:
- return self.release[0] if len(self.release) >= 1 else 0
-
- @property
- def minor(self) -> int:
- return self.release[1] if len(self.release) >= 2 else 0
-
- @property
- def micro(self) -> int:
- return self.release[2] if len(self.release) >= 3 else 0
-
-
-def _parse_letter_version(
- letter: str, number: Union[str, bytes, SupportsInt]
-) -> Optional[Tuple[str, int]]:
-
- if letter:
- # We consider there to be an implicit 0 in a pre-release if there is
- # not a numeral associated with it.
- if number is None:
- number = 0
-
- # We normalize any letters to their lower case form
- letter = letter.lower()
-
- # We consider some words to be alternate spellings of other words and
- # in those cases we want to normalize the spellings to our preferred
- # spelling.
- if letter == "alpha":
- letter = "a"
- elif letter == "beta":
- letter = "b"
- elif letter in ["c", "pre", "preview"]:
- letter = "rc"
- elif letter in ["rev", "r"]:
- letter = "post"
-
- return letter, int(number)
- if not letter and number:
- # We assume if we are given a number, but we are not given a letter
- # then this is using the implicit post release syntax (e.g. 1.0-1)
- letter = "post"
-
- return letter, int(number)
-
- return None
-
-
-_local_version_separators = re.compile(r"[\._-]")
-
-
-def _parse_local_version(local: str) -> Optional[LocalType]:
- """
- Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
- """
- if local is not None:
- return tuple(
- part.lower() if not part.isdigit() else int(part)
- for part in _local_version_separators.split(local)
- )
- return None
-
-
-def _cmpkey(
- epoch: int,
- release: Tuple[int, ...],
- pre: Optional[Tuple[str, int]],
- post: Optional[Tuple[str, int]],
- dev: Optional[Tuple[str, int]],
- local: Optional[Tuple[SubLocalType]],
-) -> CmpKey:
-
- # When we compare a release version, we want to compare it with all of the
- # trailing zeros removed. So we'll use a reverse the list, drop all the now
- # leading zeros until we come to something non zero, then take the rest
- # re-reverse it back into the correct order and make it a tuple and use
- # that for our sorting key.
- _release = tuple(
- reversed(list(itertools.dropwhile(lambda x: x == 0, reversed(release))))
- )
-
- # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
- # We'll do this by abusing the pre segment, but we _only_ want to do this
- # if there is not a pre or a post segment. If we have one of those then
- # the normal sorting rules will handle this case correctly.
- if pre is None and post is None and dev is not None:
- _pre: PrePostDevType = NegativeInfinity
- # Versions without a pre-release (except as noted above) should sort after
- # those with one.
- elif pre is None:
- _pre = Infinity
- else:
- _pre = pre
-
- # Versions without a post segment should sort before those with one.
- if post is None:
- _post: PrePostDevType = NegativeInfinity
-
- else:
- _post = post
-
- # Versions without a development segment should sort after those with one.
- if dev is None:
- _dev: PrePostDevType = Infinity
-
- else:
- _dev = dev
-
- if local is None:
- # Versions without a local segment should sort before those with one.
- _local: LocalType = NegativeInfinity
- else:
- # Versions with a local segment need that segment parsed to implement
- # the sorting rules in PEP440.
- # - Alpha numeric segments sort before numeric segments
- # - Alpha numeric segments sort lexicographically
- # - Numeric segments sort numerically
- # - Shorter versions sort before longer versions when the prefixes
- # match exactly
- _local = tuple(
- (i, "") if isinstance(i, int) else (NegativeInfinity, i) for i in local
- )
-
- return epoch, _release, _pre, _post, _dev, _local
projects / dlqueue.git / blobdiff