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confluent/confluent_server/dbgtools/confluentdbgcli.py

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#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2017 Lenovo
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Note that this script has a high chance of breaking confluent, so
# do not be surprised if confluent crashes as you exit...
import select
import socket
import readline
import sys
import threading
readline.parse_and_bind('tab: complete')
conn = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
conn.connect('/var/run/confluent/dbg.sock')
pendingoutput = None
class GetInput(threading.Thread):
def run(self):
global pendingoutput
while True:
try:
pendingoutput = raw_input('')
except EOFError:
pendingoutput = False
break
inputthread = GetInput()
inputthread.start()
while True:
r, _, _ = select.select((conn,), (), (), 0.1)
if conn in r:
sys.stdout.write(conn.recv(1))
if pendingoutput is not None:
if pendingoutput is False:
conn.shutdown(socket.SHUT_WR)
sys.exit(1)
else:
conn.sendall(pendingoutput + '\n')
pendingoutput = None
sys.stdout.flush()