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# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
import platform as py_platform
import re
from spack.version import Version
from ._operating_system import OperatingSystem
def kernel_version():
"""Return the kernel version as a Version object.
Note that the kernel version is distinct from OS and/or
distribution versions. For instance:
>>> external.distro.id()
'centos'
>>> external.distro.version()
'7'
>>> platform.release()
'5.10.84+'
"""
# Strip '+' characters just in case we're running a
# version built from git/etc
clean_version = re.sub(r'\+', r'', py_platform.release())
return Version(clean_version)
class LinuxDistro(OperatingSystem):
""" This class will represent the autodetected operating system
for a Linux System. Since there are many different flavors of
Linux, this class will attempt to encompass them all through
autodetection using the python module platform and the method
platform.dist()
"""
def __init__(self):
try:
# This will throw an error if imported on a non-Linux platform.
import external.distro
distname, version = external.distro.id(), external.distro.version()
except ImportError:
distname, version = 'unknown', ''
# Grabs major version from tuple on redhat; on other platforms
# grab the first legal identifier in the version field. On
# debian you get things like 'wheezy/sid'; sid means unstable.
# We just record 'wheezy' and don't get quite so detailed.
version = re.split(r'[^\w-]', version)
if 'ubuntu' in distname:
version = '.'.join(version[0:2])
else:
version = version[0]
super(LinuxDistro, self).__init__(distname, version)
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