Factor out common code between cli utilities
The client, merger and server share common code. Factor it out to the
new class zuul.cmd.ZuulApp().
* Moved stack_dump_handler there. It is still a function.
* setup_logging() is shared by merger and server. The client simply
override it (--verbose simply set the debug level). We might want one
day to have the client look at zuul.conf for its logging
configuration.
* The merger now reports the Zuul version via the argparse action
'version'. The action asks argparse to invokes a method, print its
result and exit immediately. That brings it on par with client and
server which have been using that action since commit aabb686b
* Client.gear_server_pid property is gone. Seems to be a left over when
the client got created out of the server code.
Change-Id: I0a3984a5650408ac5f5d6ecdb7518c339b392492
This commit is contained in:
parent
11041d2130
commit
3775875a42
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@ -17,7 +17,7 @@ import logging
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import signal
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import testtools
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import zuul.cmd.server
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import zuul.cmd
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class TestStackDump(testtools.TestCase):
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@ -29,6 +29,6 @@ class TestStackDump(testtools.TestCase):
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def test_stack_dump_logs(self):
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"Test that stack dumps end up in logs."
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zuul.cmd.server.stack_dump_handler(signal.SIGUSR2, None)
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zuul.cmd.stack_dump_handler(signal.SIGUSR2, None)
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self.assertIn("Thread", self.log_fixture.output)
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self.assertIn("test_stack_dump_logs", self.log_fixture.output)
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@ -0,0 +1,73 @@
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#!/usr/bin/env python
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# Copyright 2012 Hewlett-Packard Development Company, L.P.
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# Copyright 2013 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import ConfigParser
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import logging
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import logging.config
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import os
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import signal
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import sys
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import traceback
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# No zuul imports here because they pull in paramiko which must not be
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# imported until after the daemonization.
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# https://github.com/paramiko/paramiko/issues/59
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# Similar situation with gear and statsd.
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def stack_dump_handler(signum, frame):
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signal.signal(signal.SIGUSR2, signal.SIG_IGN)
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log_str = ""
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for thread_id, stack_frame in sys._current_frames().items():
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log_str += "Thread: %s\n" % thread_id
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log_str += "".join(traceback.format_stack(stack_frame))
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log = logging.getLogger("zuul.stack_dump")
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log.debug(log_str)
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signal.signal(signal.SIGUSR2, stack_dump_handler)
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class ZuulApp(object):
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def __init__(self):
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self.args = None
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self.config = None
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def _get_version(self):
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from zuul.version import version_info as zuul_version_info
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return "Zuul version: %s" % zuul_version_info.version_string()
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def read_config(self):
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self.config = ConfigParser.ConfigParser()
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if self.args.config:
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locations = [self.args.config]
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else:
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locations = ['/etc/zuul/zuul.conf',
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'~/zuul.conf']
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for fp in locations:
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if os.path.exists(os.path.expanduser(fp)):
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self.config.read(os.path.expanduser(fp))
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return
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raise Exception("Unable to locate config file in %s" % locations)
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def setup_logging(self, section, parameter):
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if self.config.has_option(section, parameter):
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fp = os.path.expanduser(self.config.get(section, parameter))
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if not os.path.exists(fp):
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raise Exception("Unable to read logging config file at %s" %
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fp)
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logging.config.fileConfig(fp)
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else:
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logging.basicConfig(level=logging.DEBUG)
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@ -16,26 +16,20 @@
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import argparse
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import babel.dates
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import ConfigParser
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import datetime
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import logging
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import logging.config
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import os
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import prettytable
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import sys
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import time
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import zuul.rpcclient
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import zuul.cmd
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class Client(object):
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class Client(zuul.cmd.ZuulApp):
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log = logging.getLogger("zuul.Client")
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def __init__(self):
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self.args = None
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self.config = None
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self.gear_server_pid = None
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def parse_arguments(self):
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parser = argparse.ArgumentParser(
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description='Zuul Project Gating System Client.')
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self.args = parser.parse_args()
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def _get_version(self):
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from zuul.version import version_info as zuul_version_info
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return "Zuul version: %s" % zuul_version_info.version_string()
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def read_config(self):
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self.config = ConfigParser.ConfigParser()
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if self.args.config:
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locations = [self.args.config]
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else:
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locations = ['/etc/zuul/zuul.conf',
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'~/zuul.conf']
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for fp in locations:
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if os.path.exists(os.path.expanduser(fp)):
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self.config.read(os.path.expanduser(fp))
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return
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raise Exception("Unable to locate config file in %s" % locations)
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def setup_logging(self):
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"""Client logging does not rely on conf file"""
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if self.args.verbose:
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logging.basicConfig(level=logging.DEBUG)
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@ -15,7 +15,6 @@
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# under the License.
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import argparse
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import ConfigParser
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import daemon
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import extras
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# instead it depends on lockfile-0.9.1 which uses pidfile.
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pid_file_module = extras.try_imports(['daemon.pidlockfile', 'daemon.pidfile'])
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import logging
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import logging.config
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import os
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import sys
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import signal
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import traceback
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import zuul.cmd
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# No zuul imports here because they pull in paramiko which must not be
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# imported until after the daemonization.
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# Similar situation with gear and statsd.
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def stack_dump_handler(signum, frame):
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signal.signal(signal.SIGUSR2, signal.SIG_IGN)
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log_str = ""
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for thread_id, stack_frame in sys._current_frames().items():
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log_str += "Thread: %s\n" % thread_id
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log_str += "".join(traceback.format_stack(stack_frame))
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log = logging.getLogger("zuul.stack_dump")
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log.debug(log_str)
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signal.signal(signal.SIGUSR2, stack_dump_handler)
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class Merger(object):
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def __init__(self):
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self.args = None
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self.config = None
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class Merger(zuul.cmd.ZuulApp):
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def parse_arguments(self):
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parser = argparse.ArgumentParser(description='Zuul merge worker.')
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help='specify the config file')
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parser.add_argument('-d', dest='nodaemon', action='store_true',
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help='do not run as a daemon')
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parser.add_argument('--version', dest='version', action='store_true',
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parser.add_argument('--version', dest='version', action='version',
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version=self._get_version(),
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help='show zuul version')
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self.args = parser.parse_args()
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def read_config(self):
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self.config = ConfigParser.ConfigParser()
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if self.args.config:
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locations = [self.args.config]
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else:
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locations = ['/etc/zuul/zuul.conf',
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'~/zuul.conf']
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for fp in locations:
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if os.path.exists(os.path.expanduser(fp)):
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self.config.read(os.path.expanduser(fp))
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return
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raise Exception("Unable to locate config file in %s" % locations)
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def setup_logging(self, section, parameter):
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if self.config.has_option(section, parameter):
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fp = os.path.expanduser(self.config.get(section, parameter))
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if not os.path.exists(fp):
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raise Exception("Unable to read logging config file at %s" %
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fp)
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logging.config.fileConfig(fp)
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else:
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logging.basicConfig(level=logging.DEBUG)
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def exit_handler(self, signum, frame):
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signal.signal(signal.SIGUSR1, signal.SIG_IGN)
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self.merger.stop()
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self.merger.start()
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signal.signal(signal.SIGUSR1, self.exit_handler)
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signal.signal(signal.SIGUSR2, stack_dump_handler)
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signal.signal(signal.SIGUSR2, zuul.cmd.stack_dump_handler)
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while True:
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try:
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signal.pause()
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server = Merger()
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server.parse_arguments()
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if server.args.version:
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from zuul.version import version_info as zuul_version_info
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print "Zuul version: %s" % zuul_version_info.version_string()
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sys.exit(0)
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server.read_config()
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if server.config.has_option('zuul', 'state_dir'):
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@ -15,7 +15,6 @@
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# under the License.
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import argparse
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import ConfigParser
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import daemon
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import extras
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pid_file_module = extras.try_imports(['daemon.pidlockfile', 'daemon.pidfile'])
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import logging
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import logging.config
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import os
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import sys
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import signal
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import traceback
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import zuul.cmd
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# No zuul imports here because they pull in paramiko which must not be
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# imported until after the daemonization.
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@ -36,21 +35,9 @@ import traceback
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# Similar situation with gear and statsd.
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def stack_dump_handler(signum, frame):
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signal.signal(signal.SIGUSR2, signal.SIG_IGN)
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log_str = ""
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for thread_id, stack_frame in sys._current_frames().items():
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log_str += "Thread: %s\n" % thread_id
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log_str += "".join(traceback.format_stack(stack_frame))
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log = logging.getLogger("zuul.stack_dump")
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log.debug(log_str)
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signal.signal(signal.SIGUSR2, stack_dump_handler)
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class Server(object):
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class Server(zuul.cmd.ZuulApp):
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def __init__(self):
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self.args = None
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self.config = None
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super(Server, self).__init__()
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self.gear_server_pid = None
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def parse_arguments(self):
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help='show zuul version')
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self.args = parser.parse_args()
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def _get_version(self):
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from zuul.version import version_info as zuul_version_info
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return "Zuul version: %s" % zuul_version_info.version_string()
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def read_config(self):
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self.config = ConfigParser.ConfigParser()
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if self.args.config:
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locations = [self.args.config]
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else:
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locations = ['/etc/zuul/zuul.conf',
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'~/zuul.conf']
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for fp in locations:
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if os.path.exists(os.path.expanduser(fp)):
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self.config.read(os.path.expanduser(fp))
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return
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raise Exception("Unable to locate config file in %s" % locations)
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def setup_logging(self, section, parameter):
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if self.config.has_option(section, parameter):
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fp = os.path.expanduser(self.config.get(section, parameter))
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if not os.path.exists(fp):
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raise Exception("Unable to read logging config file at %s" %
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fp)
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logging.config.fileConfig(fp)
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else:
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logging.basicConfig(level=logging.DEBUG)
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def reconfigure_handler(self, signum, frame):
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signal.signal(signal.SIGHUP, signal.SIG_IGN)
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self.read_config()
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@ -235,7 +195,7 @@ class Server(object):
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signal.signal(signal.SIGHUP, self.reconfigure_handler)
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signal.signal(signal.SIGUSR1, self.exit_handler)
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signal.signal(signal.SIGUSR2, stack_dump_handler)
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signal.signal(signal.SIGUSR2, zuul.cmd.stack_dump_handler)
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signal.signal(signal.SIGTERM, self.term_handler)
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while True:
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try:
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