/usr/lib/python3/dist-packages/glances/config.py is in glances 2.7.1.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This file is part of Glances.
#
# Copyright (C) 2015 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Manage the configuration file."""
import os
import sys
import multiprocessing
from io import open
from glances import __appname__
from glances.compat import ConfigParser, NoOptionError
from glances.globals import BSD, LINUX, OSX, WINDOWS, sys_prefix
from glances.logger import logger
class Config(object):
"""This class is used to access/read config file, if it exists.
:param config_dir: the path to search for config file
:type config_dir: str or None
"""
def __init__(self, config_dir=None):
self.config_dir = config_dir
self.config_filename = 'glances.conf'
self._loaded_config_file = None
self.parser = ConfigParser()
self.read()
def config_file_paths(self):
r"""Get a list of config file paths.
The list is built taking into account of the OS, priority and location.
* custom path: /path/to/glances
* Linux: ~/.config/glances, /etc/glances
* BSD: ~/.config/glances, /usr/local/etc/glances
* OS X: ~/Library/Application Support/glances, /usr/local/etc/glances
* Windows: %APPDATA%\glances
The config file will be searched in the following order of priority:
* /path/to/file (via -C flag)
* user's home directory (per-user settings)
* system-wide directory (system-wide settings)
"""
paths = []
if self.config_dir:
paths.append(self.config_dir)
if LINUX or BSD:
paths.append(
os.path.join(os.environ.get('XDG_CONFIG_HOME') or
os.path.expanduser('~/.config'),
__appname__, self.config_filename))
if BSD:
paths.append(
os.path.join(sys.prefix, 'etc', __appname__, self.config_filename))
else:
paths.append(
os.path.join('/etc', __appname__, self.config_filename))
elif OSX:
paths.append(
os.path.join(os.path.expanduser('~/Library/Application Support/'),
__appname__, self.config_filename))
paths.append(
os.path.join(sys_prefix, 'etc', __appname__, self.config_filename))
elif WINDOWS:
paths.append(
os.path.join(os.environ.get('APPDATA'), __appname__, self.config_filename))
return paths
def read(self):
"""Read the config file, if it exists. Using defaults otherwise."""
for config_file in self.config_file_paths():
if os.path.exists(config_file):
try:
with open(config_file, encoding='utf-8') as f:
self.parser.read_file(f)
self.parser.read(f)
logger.info("Read configuration file '{}'".format(config_file))
except UnicodeDecodeError as err:
logger.error("Cannot decode configuration file '{}': {}".format(config_file, err))
sys.exit(1)
# Save the loaded configuration file path (issue #374)
self._loaded_config_file = config_file
break
# Quicklook
if not self.parser.has_section('quicklook'):
self.parser.add_section('quicklook')
self.set_default('quicklook', 'cpu_careful', '50')
self.set_default('quicklook', 'cpu_warning', '70')
self.set_default('quicklook', 'cpu_critical', '90')
self.set_default('quicklook', 'mem_careful', '50')
self.set_default('quicklook', 'mem_warning', '70')
self.set_default('quicklook', 'mem_critical', '90')
self.set_default('quicklook', 'swap_careful', '50')
self.set_default('quicklook', 'swap_warning', '70')
self.set_default('quicklook', 'swap_critical', '90')
# CPU
if not self.parser.has_section('cpu'):
self.parser.add_section('cpu')
self.set_default('cpu', 'user_careful', '50')
self.set_default('cpu', 'user_warning', '70')
self.set_default('cpu', 'user_critical', '90')
self.set_default('cpu', 'system_careful', '50')
self.set_default('cpu', 'system_warning', '70')
self.set_default('cpu', 'system_critical', '90')
self.set_default('cpu', 'steal_careful', '50')
self.set_default('cpu', 'steal_warning', '70')
self.set_default('cpu', 'steal_critical', '90')
# By default I/O wait should be lower than 1/number of CPU cores
iowait_bottleneck = (1.0 / multiprocessing.cpu_count()) * 100.0
self.set_default('cpu', 'iowait_careful', str(iowait_bottleneck - (iowait_bottleneck * 0.20)))
self.set_default('cpu', 'iowait_warning', str(iowait_bottleneck - (iowait_bottleneck * 0.10)))
self.set_default('cpu', 'iowait_critical', str(iowait_bottleneck))
ctx_switches_bottleneck = 56000 / multiprocessing.cpu_count()
self.set_default('cpu', 'ctx_switches_careful', str(ctx_switches_bottleneck - (ctx_switches_bottleneck * 0.20)))
self.set_default('cpu', 'ctx_switches_warning', str(ctx_switches_bottleneck - (ctx_switches_bottleneck * 0.10)))
self.set_default('cpu', 'ctx_switches_critical', str(ctx_switches_bottleneck))
# Per-CPU
if not self.parser.has_section('percpu'):
self.parser.add_section('percpu')
self.set_default('percpu', 'user_careful', '50')
self.set_default('percpu', 'user_warning', '70')
self.set_default('percpu', 'user_critical', '90')
self.set_default('percpu', 'system_careful', '50')
self.set_default('percpu', 'system_warning', '70')
self.set_default('percpu', 'system_critical', '90')
# Load
if not self.parser.has_section('load'):
self.parser.add_section('load')
self.set_default('load', 'careful', '0.7')
self.set_default('load', 'warning', '1.0')
self.set_default('load', 'critical', '5.0')
# Mem
if not self.parser.has_section('mem'):
self.parser.add_section('mem')
self.set_default('mem', 'careful', '50')
self.set_default('mem', 'warning', '70')
self.set_default('mem', 'critical', '90')
# Swap
if not self.parser.has_section('memswap'):
self.parser.add_section('memswap')
self.set_default('memswap', 'careful', '50')
self.set_default('memswap', 'warning', '70')
self.set_default('memswap', 'critical', '90')
# FS
if not self.parser.has_section('fs'):
self.parser.add_section('fs')
self.set_default('fs', 'careful', '50')
self.set_default('fs', 'warning', '70')
self.set_default('fs', 'critical', '90')
# Sensors
if not self.parser.has_section('sensors'):
self.parser.add_section('sensors')
self.set_default('sensors', 'temperature_core_careful', '60')
self.set_default('sensors', 'temperature_core_warning', '70')
self.set_default('sensors', 'temperature_core_critical', '80')
self.set_default('sensors', 'temperature_hdd_careful', '45')
self.set_default('sensors', 'temperature_hdd_warning', '52')
self.set_default('sensors', 'temperature_hdd_critical', '60')
self.set_default('sensors', 'battery_careful', '80')
self.set_default('sensors', 'battery_warning', '90')
self.set_default('sensors', 'battery_critical', '95')
# Process list
if not self.parser.has_section('processlist'):
self.parser.add_section('processlist')
self.set_default('processlist', 'cpu_careful', '50')
self.set_default('processlist', 'cpu_warning', '70')
self.set_default('processlist', 'cpu_critical', '90')
self.set_default('processlist', 'mem_careful', '50')
self.set_default('processlist', 'mem_warning', '70')
self.set_default('processlist', 'mem_critical', '90')
@property
def loaded_config_file(self):
"""Return the loaded configuration file."""
return self._loaded_config_file
def sections(self):
"""Return a list of all sections."""
return self.parser.sections()
def items(self, section):
"""Return the items list of a section."""
return self.parser.items(section)
def has_section(self, section):
"""Return info about the existence of a section."""
return self.parser.has_section(section)
def set_default(self, section, option, default):
"""If the option did not exist, create a default value."""
if not self.parser.has_option(section, option):
self.parser.set(section, option, default)
def get_value(self, section, option, default=None):
"""Get the value of an option, if it exists."""
try:
return self.parser.get(section, option)
except NoOptionError:
return default
def get_float_value(self, section, option, default=0.0):
"""Get the float value of an option, if it exists."""
try:
return self.parser.getfloat(section, option)
except NoOptionError:
return float(default)
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