def fetch_system_data(cls) -> None:
"""Fetch info from the host system.
The function should be the only one that use system calls or programs
to fetch information from the current system. Overriding this method
should be enough for example for testing purposes as all the other
methods use information retrieved in this function.
The function should set all the class attributes described at the
beginning of this class.
"""
# Compute result of uname
cls.uname = Uname(*platform_uname())
# Fetch linux distribution info on linux OS
if cls.uname.system == "Linux": # linux-only
import ld
cls.ld_info = {
"name": ld.name(),
"major_version": ld.major_version(),
"version": ld.version(),
}
# Fetch core numbers. Note that the methods does not work
# on AIX platform but we usually override manually that
# setting anyway.
cls.core_number = 1
try:
import multiprocessing
cls.core_number = multiprocessing.cpu_count()
except Exception: # defensive code
e3.log.debug("multiprocessing error", exc_info=True)
try:
import psutil
cls.core_number = psutil.cpu_count()
except Exception:
e3.log.debug("psutil error", exc_info=True)
cls.nis_domain = UNKNOWN
if sys.platform != "win32": # windows: no cover
try:
import nis
except ImportError: # defensive code
e3.log.debug("cannot import nis", exc_info=True)
nis = None # type: ignore
if nis is not None:
try:
cls.nis_domain = nis.get_default_domain()
if not cls.nis_domain: # defensive code
cls.nis_domain = UNKNOWN
except nis.error: # defensive code
e3.log.debug("nis error", exc_info=True)
def fetch_system_data(cls):
"""Fetch info from the host system.
The function should be the only one that use system calls or programs
to fetch information from the current system. Overriding this method
should be enough for example for testing purposes as all the other
methods use information retrieved in this function.
The function should set all the class attributes described at the
beginning of this class.
"""
# Compute result of uname
cls.uname = Uname(*platform_uname())
# Fetch linux distribution info on linux OS
if cls.uname.system == 'Linux': # linux-only
import ld
cls.ld_info = {
'name': ld.name(),
'major_version': ld.major_version(),
'version': ld.version()
}
# Fetch network interfaces
try:
from netifaces import interfaces, ifaddresses, address_families
# use string for address families instead of integers which are
# system dependents
cls.network_ifs = {
itf: {
address_families[k]: v
for k, v in ifaddresses(itf).iteritems()
}
for itf in interfaces()
}
except Exception: # defensive code
e3.log.debug('cannot get network info', exc_info=True)
cls.network_ifs = None
# Fetch core numbers. Note that the methods does not work
# on AIX platform but we usually override manually that
# setting anyway.
cls.core_number = 1
try:
import multiprocessing
cls.core_number = multiprocessing.cpu_count()
except Exception: # defensive code
e3.log.debug('multiprocessing error', exc_info=True)
try:
import psutil
cls.core_number = psutil.cpu_count()
except Exception:
e3.log.debug('psutil error', exc_info=True)
cls.nis_domain = UNKNOWN
if sys.platform != 'win32': # windows: no cover
try:
import nis
except ImportError: # defensive code
e3.log.debug('cannot import nis', exc_info=True)
nis = None
if nis is not None:
try:
cls.nis_domain = nis.get_default_domain()
if not cls.nis_domain: # defensive code
cls.nis_domain = UNKNOWN
except nis.error: # defensive code
e3.log.debug('nis error', exc_info=True)
def uname():
return tuple(platform_uname())
def fetch_system_data(cls):
"""Fetch info from the host system.
The function should be the only one that use system calls or programs
to fetch information from the current system. Overriding this method
should be enough for example for testing purposes as all the other
methods use information retrieved in this function.
The function should set all the class attributes described at the
beginning of this class.
"""
# Compute result of uname
cls.uname = Uname(*platform_uname())
# Fetch linux distribution info on linux OS
if cls.uname.system == 'Linux':
import ld
cls.ld_info = {'name': ld.name(),
'major_version': ld.major_version(),
'version': ld.version()}
# Fetch network interfaces
try:
from netifaces import interfaces, ifaddresses, address_families
# use string for address families instead of integers which are
# system dependents
cls.network_ifs = {itf: {address_families[k]: v
for k, v in ifaddresses(itf).iteritems()}
for itf in interfaces()}
except Exception:
e3.log.debug('cannot get network info', exc_info=True)
cls.network_ifs = None
# Fetch core numbers. Note that the methods does not work
# on AIX platform but we usually override manually that
# setting anyway.
cls.core_number = 1
try:
import multiprocessing
cls.core_number = multiprocessing.cpu_count()
except Exception:
e3.log.debug('multiprocessing error', exc_info=True)
try:
import psutil
cls.core_number = psutil.cpu_count()
except Exception:
e3.log.debug('psutil error', exc_info=True)
pass
cls.nis_domain = UNKNOWN
try:
import nis
except ImportError:
e3.log.debug('cannot import nis', exc_info=True)
nis = None
if nis is not None:
try:
cls.nis_domain = nis.get_default_domain()
if not cls.nis_domain:
cls.nis_domain = UNKNOWN
except nis.error:
e3.log.debug('nis error', exc_info=True)
pass