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# -*- coding: utf-8 -*-
# sysdata
# Sysdata is a module uses great Py3status (i3status wrapper) to
# display system information (RAM usage) in i3bar (Linux systems).
# For more information read:
# i3wm homepage: http://i3wm.org
# py3status homepage: https://github.com/ultrabug/py3status
# Copyright (C) <2013> <Shahin Azad [ishahinism at Gmail]>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import subprocess
from time import time
class GetData:
"""Get system status
"""
def execCMD(self, cmd, arg):
"""Take a system command and its argument, then return the result.
Arguments:
- `cmd`: system command.
- `arg`: argument.
"""
result = subprocess.check_output([cmd, arg])
return result
def memory(self):
"""Execute 'free -m' command, grab the memory capacity and used size
then return; Memory size 'total_mem', Used_mem, and percentage
of used memory.
"""
# Run 'free -m' command and make a list from output.
mem_data = self.execCMD('free', '-m').split()
total_mem = int(mem_data[7]) / 1024.
used_mem = int(mem_data[15]) / 1024.
# Caculate percentage
used_mem_percent = int(used_mem / (total_mem / 100))
# Results are in kilobyte.
return total_mem, used_mem, used_mem_percent
class Py3status:
"""
System status in i3bar
"""
def ramInfo(self, json, i3status_config):
"""calculate the memory (RAM) status and return it.
"""
data = GetData()
response = {'full_text': '', 'name': 'ram_info'}
total_mem, used_mem, used_mem_percent = data.memory()
if used_mem_percent <= 40:
response['color'] = i3status_config['color_good']
elif used_mem_percent <= 75:
response['color'] = i3status_config['color_degraded']
else:
response['color'] = i3status_config['color_bad']
response['full_text'] = "RAM: %.2f/%.2f GB (%d%%)" % \
(used_mem, total_mem, used_mem_percent)
response['cached_until'] = time()
return (0, response)
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