64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
# Copyright (c) 2021, Dell Inc. or its subsidiaries. All rights reserved.
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
# See the LICENSE file for details.
|
|
#
|
|
# This file is part of NVMe STorage Appliance Services (nvme-stas).
|
|
#
|
|
# Authors: Martin Belanger <Martin.Belanger@dell.com>
|
|
#
|
|
''' distutils (and hence LooseVersion) is being deprecated. None of the
|
|
suggested replacements (e.g. from pkg_resources import parse_version) quite
|
|
work with Linux kernel versions the way LooseVersion does.
|
|
|
|
It was suggested to simply lift the LooseVersion code and vendor it in,
|
|
which is what this module is about.
|
|
'''
|
|
|
|
import re
|
|
|
|
|
|
class KernelVersion:
|
|
'''Code loosely lifted from distutils's LooseVersion'''
|
|
|
|
component_re = re.compile(r'(\d+ | [a-z]+ | \.)', re.VERBOSE)
|
|
|
|
def __init__(self, string: str):
|
|
self.string = string
|
|
self.version = self.__parse(string)
|
|
|
|
def __str__(self):
|
|
return self.string
|
|
|
|
def __repr__(self):
|
|
return f'KernelVersion ("{self}")'
|
|
|
|
def __eq__(self, other):
|
|
return self.version == self.__version(other)
|
|
|
|
def __lt__(self, other):
|
|
return self.version < self.__version(other)
|
|
|
|
def __le__(self, other):
|
|
return self.version <= self.__version(other)
|
|
|
|
def __gt__(self, other):
|
|
return self.version > self.__version(other)
|
|
|
|
def __ge__(self, other):
|
|
return self.version >= self.__version(other)
|
|
|
|
@staticmethod
|
|
def __version(obj):
|
|
return obj.version if isinstance(obj, KernelVersion) else KernelVersion.__parse(obj)
|
|
|
|
@staticmethod
|
|
def __parse(string):
|
|
components = []
|
|
for item in KernelVersion.component_re.split(string):
|
|
if item and item != '.':
|
|
try:
|
|
components.append(int(item))
|
|
except ValueError:
|
|
pass
|
|
|
|
return components
|