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# -*- coding: utf8 -*-
from __future__ import division # python2 compatibility
from time import time, sleep
from subprocess import check_output
"""
Module for displaying vnstat's statistics.
REQUIRE external program called "vnstat" installed and configured to work.
@author shadowprince
@license Eclipse Public License
"""
CACHED_TIME = 3*60 # update time (in seconds)
POSITION = 0 # bar position
STATISTICS_TYPE = "d" # d for daily, m for monthly
"""
Coloring rules.
If value is bigger that dict key, status string will turn to color, specified in the value.
Example:
COLORING = {
800: "#dddd00",
900: "#dd0000",
}
(0 - 800: white, 800-900: yellow, >900 - red)
"""
COLORING = {}
"""
Format of status string.
Placeholders:
total - total
up - upload
down - download
"""
FORMAT = "{total}"
PRECISION = 1 # amount of numbers after dot
MULTIPLIER_TOP = 1024 # if value is greater, divide it with UNIT_MULTI and get next unit from UNITS
LEFT_ALIGN = 0
"""
Format of total, up and down placeholders under FORMAT.
As default, substitutes LEFT_ALIGN and PRECISION as %s and %s
Placeholders:
value - value (float)
unit - unit (string)
"""
VALUE_FORMAT = "{value:%s.%sf} {unit}" % (LEFT_ALIGN, PRECISION)
INITIAL_MULTI = 1024 # initial multiplier, if you want to get rid of first bytes, set to 1 to disable
UNIT_MULTI = 1024 # value to divide if rate is greater than MULTIPLIER_TOP
UNITS = ["kb", "mb", "gb", "tb", ] # list of units, first one - value/INITIAL_MULTI, second - value/1024, third - value/1024^2, etc...
def get_stat():
"""
Get statistics from devfile in list of lists of words
"""
def filter_stat():
for x in check_output(["vnstat", "--dumpdb"]).decode("utf-8").splitlines():
if x.startswith("{};0;".format(STATISTICS_TYPE)):
return x
try:
type, number, ts, rxm, txm, rxk, txk, fill = filter_stat().split(";")
except OSError as e:
print("Looks like you have'nt installed or configured vnstat!")
raise e
except ValueError:
raise RuntimeError("vnstat returned wrong output, maybe it's configured wrong or module is outdated")
up = (int(txm) * 1024 + int(txk)) * 1024
down = (int(rxm) * 1024 + int(rxk)) * 1024
return {"up": up,
"down": down,
"total": up+down, }
def divide_and_format(value):
"""
Divide a value and return formatted string
"""
value /= INITIAL_MULTI
for i, unit in enumerate(UNITS):
if value > MULTIPLIER_TOP:
value /= UNIT_MULTI
else:
break
return VALUE_FORMAT.format(value=value, unit=unit)
class Py3status:
def __init__(self, *args, **kwargs):
self.last_stat = get_stat()
self.last_time = time()
self.last_interface = None
def currentSpeed(self, json, i3status_config):
stat = get_stat()
color = None
keys = list(COLORING.keys())
keys.sort()
for k in keys:
if stat["total"] < k * 1024 * 1024:
break
else:
color = COLORING[k]
response = {
'transformed': True,
'full_text': FORMAT.format(
total=divide_and_format(stat['total']),
up=divide_and_format(stat['up']),
down=divide_and_format(stat['down']),),
'name': 'vnstat',
'cached_until': time() + CACHED_TIME,
}
if color:
response["color"] = color
return POSITION, response
if __name__ == "__main__":
x = Py3status()
while True:
print(x.currentSpeed(1, 1))
sleep(1)
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