bumblebee-status/bumblebee/modules/apt.py

81 lines
2.2 KiB
Python

# pylint: disable=C0111,R0903
"""Displays APT package update information (<to upgrade>/<to remove >)
Requires the following debian packages:
* python-parse
* aptitude
"""
import threading
from parse import *
import bumblebee.util
import bumblebee.input
import bumblebee.output
import bumblebee.engine
APT_CHECK_PATH = ("aptitude full-upgrade --simulate --assume-yes")
PATTERN = "{} packages upgraded, {} newly installed, {} to remove and {} not upgraded."
def parse_result(to_parse):
# We want to line with the iforamtion about package upgrade
line_to_parse = to_parse.split("\n")[-4]
result = parse(PATTERN, line_to_parse)
return int(result[0]), int(result[2])
def get_apt_check_info(widget):
try:
res = bumblebee.util.execute(APT_CHECK_PATH)
widget.set("error", None)
except (RuntimeError, FileNotFoundError) as e:
widget.set("error", "unable to query APT: {}".format(e))
return
to_upgrade = 0
to_remove = 0
try:
to_upgrade, to_remove = parse_result(res)
except e:
widget.set("error", "parse error: {}".format(e))
return
widget.set("to_upgrade", to_upgrade)
widget.set("to_remove", to_remove)
class Module(bumblebee.engine.Module):
def __init__(self, engine, config):
widget = bumblebee.output.Widget(full_text=self.updates)
super(Module, self).__init__(engine, config, widget)
self.interval_factor(60)
self.interval(30)
def updates(self, widget):
result = []
if widget.get("error"):
return widget.get("error")
for t in ["to_upgrade", "to_remove"]:
result.append(str(widget.get(t, 0)))
return "/".join(result)
def update(self, widgets):
thread = threading.Thread(target=get_apt_check_info, args=(widgets[0],))
thread.start()
def state(self, widget):
cnt = 0
ret = "good"
for t in ["to_upgrade", "to_remove"]:
cnt += widget.get(t, 0)
if cnt > 50:
ret = "critical"
elif cnt > 0:
ret = "warning"
if widget.get("error"):
ret = "critical"
return ret
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