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# Copyright (c) 2014 Mirantis Inc.
# All Rights Reserved.
#
# 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.
import logging
import sys
import threading
from oslo_rootwrap import cmd
from oslo_rootwrap import subprocess
def forward_stream(fr, to):
while True:
line = fr.readline()
if not line:
break
to.write(line)
def forwarding_popen(f, old_popen=subprocess.Popen):
def popen(*args, **kwargs):
p = old_popen(*args, **kwargs)
t = threading.Thread(target=forward_stream, args=(p.stderr, f))
t.daemon = True
t.start()
return p
return popen
class nonclosing(object):
def __init__(self, f):
self._f = f
def __getattr__(self, name):
return getattr(self._f, name)
def close(self):
pass
log_format = ("%(asctime)s | [%(process)5s]+%(levelname)5s | "
"%(message)s")
if __name__ == '__main__':
logging.basicConfig(level=logging.DEBUG, format=log_format)
sys.stderr = nonclosing(sys.stderr)
cmd.daemon()
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