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Merge pull request #3 from fingon/process-source-up
Added a simple process state monitor
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#!/usr/bin/env python | ||
# -*- coding: utf-8 -*- | ||
# -*- Python -*- | ||
# | ||
# $Id: process.py $ | ||
# | ||
# Author: Markus Stenberg <fingon@iki.fi> | ||
# | ||
# Copyright (c) 2014 Markus Stenberg | ||
# | ||
# Created: Wed Apr 23 23:33:26 2014 mstenber | ||
# Last modified: Thu Apr 24 17:13:04 2014 mstenber | ||
# Edit time: 19 min | ||
# | ||
""" | ||
Process watcher. | ||
The arguments are <subentityname>=<substring to find in process list> | ||
""" | ||
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from homeassistant.components import (STATE_ON, STATE_OFF) | ||
import os | ||
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DOMAIN = 'process' | ||
ENTITY_ID_FORMAT = DOMAIN + '.{}' | ||
PS_STRING = 'ps awx' | ||
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def setup(hass, processes): | ||
""" Track local processes. """ | ||
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# pylint: disable=unused-argument | ||
def _update_process_state(time): | ||
""" Check ps for currently running processes. """ | ||
with os.popen(PS_STRING, 'r') as psfile: | ||
lines = list(iter(psfile)) | ||
for pname, pstring in processes.items(): | ||
found = False | ||
for line in lines: | ||
if pstring in line: | ||
found = True | ||
break | ||
entity_id = ENTITY_ID_FORMAT.format(pname) | ||
state = found and STATE_ON or STATE_OFF | ||
hass.states.set(entity_id, state) | ||
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_update_process_state(None) | ||
hass.track_time_change(_update_process_state, second=[0, 30]) | ||
return True |