58 lines
1.5 KiB
Python
58 lines
1.5 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 .version import InvalidVersion, Version
|
||
|
|
|
||
|
|
|
||
|
|
_canonicalize_regex = re.compile(r"[-_.]+")
|
||
|
|
|
||
|
|
|
||
|
|
def canonicalize_name(name):
|
||
|
|
# This is taken from PEP 503.
|
||
|
|
return _canonicalize_regex.sub("-", name).lower()
|
||
|
|
|
||
|
|
|
||
|
|
def canonicalize_version(version):
|
||
|
|
"""
|
||
|
|
This is very similar to Version.__str__, but has one subtle differences
|
||
|
|
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)
|