131 lines
5.1 KiB
Python
131 lines
5.1 KiB
Python
# -*- coding: UTF-8 -*-
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# pylint: disable=C0111,R0903
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"""Displays sensor temperature
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Parameters:
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* sensors.path: path to temperature file (default /sys/class/thermal/thermal_zone0/temp).
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* sensors.json: if set to 'true', interpret sensors.path as JSON 'path' in the output
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of 'sensors -j' (i.e. <key1>/<key2>/.../<value>), for example, path could
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be: 'coretemp-isa-00000/Core 0/temp1_input' (defaults to 'false')
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* sensors.match: (fallback) Line to match against output of 'sensors -u' (default: temp1_input)
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* sensors.match_pattern: (fallback) Line to match against before temperature is read (no default)
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* sensors.match_number: (fallback) which of the matches you want (default -1: last match).
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* sensors.show_freq: whether to show CPU frequency. (default: true)
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"""
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import re
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import json
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import logging
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log = logging.getLogger(__name__)
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import core.module
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import core.widget
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import core.input
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import util.cli
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import util.format
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class Module(core.module.Module):
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def __init__(self, config, theme):
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super().__init__(config, theme, core.widget.Widget(self.temperature))
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self._temperature = 'unknown'
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self._mhz = 'n/a'
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self._match_number = int(self.parameter('match_number', '-1'))
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self._match_pattern = self.parameter('match_pattern', None)
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self._pattern = re.compile(r'^\s*{}:\s*([\d.]+)$'.format(self.parameter('match', 'temp1_input')), re.MULTILINE)
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self._json = util.format.asbool(self.parameter('json', False))
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self._freq = util.format.asbool(self.parameter('show_freq', True))
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core.input.register(self, button=core.input.LEFT_MOUSE, cmd='xsensors')
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self.determine_method()
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def determine_method(self):
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if self.parameter('path') != None and self._json == False:
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self.use_sensors = False # use thermal zone
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else:
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# try to use output of sensors -u
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try:
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output = util.cli.execute('sensors -u')
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self.use_sensors = True
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log.debug('Sensors command available')
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except FileNotFoundError as e:
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log.info('Sensors command not available, using /sys/class/thermal/thermal_zone*/')
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self.use_sensors = False
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def _get_temp_from_sensors(self):
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if self._json == True:
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try:
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output = json.loads(util.cli.execute('sensors -j'))
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for key in self.parameter('path').split('/'):
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output = output[key]
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return int(float(output))
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except Exception as e:
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logging.error('unable to read sensors: {}'.format(str(e)))
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return 'unknown'
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else:
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output = util.cli.execute('sensors -u')
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if self._match_pattern:
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temp_pattern = self.parameter('match', 'temp1_input')
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match = re.search(r'{}.+{}:\s*([\d.]+)$'.format(self._match_pattern, temp_pattern), output.replace('\n', ''))
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if match:
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return int(float(match.group(1)))
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else:
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return 'unknown'
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match = self._pattern.findall(output)
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if match:
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return int(float(match[self._match_number]))
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return 'unknown'
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def get_temp(self):
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if self.use_sensors:
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temperature = self._get_temp_from_sensors()
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log.debug('Retrieve temperature from sensors -u')
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else:
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try:
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temperature = open(self.parameter('path', '/sys/class/thermal/thermal_zone0/temp')).read()[:2]
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log.debug('retrieved temperature from /sys/class/')
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# TODO: Iterate through all thermal zones to determine the correct one and use its value
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# https://unix.stackexchange.com/questions/304845/discrepancy-between-number-of-cores-and-thermal-zones-in-sys-class-thermal
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except IOError:
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temperature = 'unknown'
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log.info('Can not determine temperature, please install lm-sensors')
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return temperature
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def get_mhz(self):
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mhz = None
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try:
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output = open('/sys/devices/system/cpu/cpufreq/policy0/scaling_cur_freq').read()
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mhz = int(float(output)/1000.0)
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except:
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output = open('/proc/cpuinfo').read()
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m = re.search(r'cpu MHz\s+:\s+(\d+)', output)
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if m:
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mhz = int(m.group(1))
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else:
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m = re.search(r'BogoMIPS\s+:\s+(\d+)', output)
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if m:
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return '{} BogoMIPS'.format(int(m.group(1)))
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if not mhz:
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return 'n/a'
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if mhz < 1000:
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return '{} MHz'.format(mhz)
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else:
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return '{:0.01f} GHz'.format(float(mhz)/1000.0)
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def temperature(self, _):
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if self._freq:
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return u'{}°c @ {}'.format(self._temperature, self._mhz)
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else:
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return u'{}°c'.format(self._temperature)
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def update(self):
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self._temperature = self.get_temp()
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if self._freq:
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self._mhz = self.get_mhz()
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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