mirror of
https://github.com/SickGear/SickGear.git
synced 2024-12-23 03:03:38 +00:00
65 lines
1.8 KiB
Python
65 lines
1.8 KiB
Python
# 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.
|
|
from __future__ import absolute_import, division, print_function
|
|
|
|
import re
|
|
|
|
from ._typing import TYPE_CHECKING, cast
|
|
from .version import InvalidVersion, Version
|
|
|
|
if TYPE_CHECKING: # pragma: no cover
|
|
from typing import NewType, Union
|
|
|
|
NormalizedName = NewType("NormalizedName", str)
|
|
|
|
_canonicalize_regex = re.compile(r"[-_.]+")
|
|
|
|
|
|
def canonicalize_name(name):
|
|
# type: (str) -> NormalizedName
|
|
# This is taken from PEP 503.
|
|
value = _canonicalize_regex.sub("-", name).lower()
|
|
return cast("NormalizedName", value)
|
|
|
|
|
|
def canonicalize_version(_version):
|
|
# type: (str) -> Union[Version, str]
|
|
"""
|
|
This is very similar to Version.__str__, but has one subtle difference
|
|
with the way it handles the release segment.
|
|
"""
|
|
|
|
try:
|
|
version = Version(_version)
|
|
except InvalidVersion:
|
|
# Legacy versions cannot be normalized
|
|
return _version
|
|
|
|
parts = []
|
|
|
|
# Epoch
|
|
if version.epoch != 0:
|
|
parts.append("{0}!".format(version.epoch))
|
|
|
|
# Release segment
|
|
# NB: This strips trailing '.0's to normalize
|
|
parts.append(re.sub(r"(\.0)+$", "", ".".join(str(x) for x in version.release)))
|
|
|
|
# Pre-release
|
|
if version.pre is not None:
|
|
parts.append("".join(str(x) for x in version.pre))
|
|
|
|
# Post-release
|
|
if version.post is not None:
|
|
parts.append(".post{0}".format(version.post))
|
|
|
|
# Development release
|
|
if version.dev is not None:
|
|
parts.append(".dev{0}".format(version.dev))
|
|
|
|
# Local version segment
|
|
if version.local is not None:
|
|
parts.append("+{0}".format(version.local))
|
|
|
|
return "".join(parts)
|