/
send_command.py
executable file
·75 lines (66 loc) · 2.09 KB
/
send_command.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# bez nazwy.py
#
# Copyright 2013 Unknown <kaszak@localhost>
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
#
import sys
import os
from time import sleep
FIFO = '/tmp/' + os.getenv('USER') + '/py3status.fifo'
class FileLock():
def __init__(self, file_path, delay=.05):
self._lock_path = file_path + '.lock'
self._locked = False
self.delay = delay
def acquire(self):
while True:
try:
self.descriptor = os.open(self._lock_path, flags=os.O_CREAT|os.O_EXCL|os.O_RDWR)
break
except OSError as fuck:
if fuck.errno == 17: # Means that the file already exist
sleep(self.delay)
else:
raise
self._locked = True
def release(self):
if self._locked:
os.close(self.descriptor)
os.unlink(self._lock_path)
self._locked = False
def main():
'''
Simple tool to send commands to py3status.
Usage:
send_command.py TARGET COMMAND
'''
if len(sys.argv) < 3:
sys.exit(1)
target = sys.argv[1]
command = ' '.join(sys.argv[2:])
lock = FileLock(FIFO)
lock.acquire()
with open(FIFO, 'w') as fifo:
fifo.write(target + ':' + command)
fifo.flush()
lock.release()
if __name__ == '__main__':
main()