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Viewing changes to start-loggerhead.py

  • Committer: Robey Pointer
  • Date: 2007-01-02 04:34:09 UTC
  • Revision ID: robey@lag.net-20070102043409-5slhxuzq5omtim2f
exponential backoff isn't really working for the lockfile, so keep it down
to 0.1 second pauses while trying to grab the lock.  also, flush the caches
at shutdown, and pause during cache rebuilding to give normal requests a
chance to get the lock.  (with threading.Lock, wakeups were automatic, but
with the file lock, there's a lot of sleeping going on.)

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start-loggerhead.py
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#!/usr/bin/env python2.4
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import pkg_resources
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pkg_resources.require("TurboGears")
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import logging
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import os
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import turbogears
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import cherrypy
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cherrypy.lowercase_api = True
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from os.path import *
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import sys
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def setup_logging(home, foreground):
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    # i hate that stupid logging config format, so just set up logging here.
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    log_folder = os.path.join(home, 'logs')
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    if not os.path.exists(log_folder):
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        os.mkdir(log_folder)
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    f = logging.Formatter('%(levelname)-.3s [%(asctime)s.%(msecs)03d] %(name)s: %(message)s',
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                          '%Y%m%d-%H:%M:%S')
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    debug_log = logging.FileHandler(os.path.join(log_folder, 'debug.log'))
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    debug_log.setLevel(logging.DEBUG)
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    debug_log.setFormatter(f)
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    if foreground:
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        stdout_log = logging.StreamHandler(sys.stdout)
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        stdout_log.setLevel(logging.DEBUG)
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        stdout_log.setFormatter(f)
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    f = logging.Formatter('[%(asctime)s.%(msecs)03d] %(message)s',
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                          '%Y%m%d-%H:%M:%S')
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    access_log = logging.FileHandler(os.path.join(log_folder, 'access.log'))
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    access_log.setLevel(logging.INFO)
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    access_log.setFormatter(f)
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    logging.getLogger('').addHandler(debug_log)
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    logging.getLogger('turbogears.access').addHandler(access_log)
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    logging.getLogger('turbogears.controllers').setLevel(logging.INFO)
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    if foreground:
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        logging.getLogger('').addHandler(stdout_log)
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foreground = False
 
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# first look on the command line for a desired config file,
 
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# if it's not on the command line, then
 
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# look for setup.py in this directory. If it's not there, this script is
 
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# probably installed
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if len(sys.argv) > 1:
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    if sys.argv[1] == '-f':
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        foreground = True
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home = os.path.realpath(os.path.dirname(__file__))
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pidfile = os.path.join(home, 'loggerhead.pid')
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# read loggerhead config
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from configobj import ConfigObj
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config = sys._loggerhead_config = ConfigObj(os.path.join(home, 'loggerhead.conf'), encoding='utf-8')
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extra_path = config.get('bzrpath', None)
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if extra_path:
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    sys.path.insert(0, extra_path)
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turbogears.update_config(configfile="dev.cfg", modulename="loggerhead.config")
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potential_overrides = [ ('server.socket_port', int), ('server.webpath', str), ('server.thread_pool', int) ]
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for key, keytype in potential_overrides:
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    value = config.get(key, None)
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    if value is not None:
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        value = keytype(value)
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        turbogears.config.update({ key: value })
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if not foreground:
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    sys.stderr.write('\n')
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    sys.stderr.write('Launching loggerhead into the background.\n')
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    sys.stderr.write('PID file: %s\n' % (pidfile,))
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    sys.stderr.write('\n')
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    from loggerhead.daemon import daemonize
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    daemonize(pidfile, home)
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setup_logging(home, foreground=foreground)
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log = logging.getLogger('loggerhead')
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log.info('Starting up...')
 
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    turbogears.update_config(configfile=sys.argv[1], 
 
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        modulename="loggerhead.config")
 
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elif exists(join(dirname(__file__), "setup.py")):
 
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    turbogears.update_config(configfile="dev.cfg",
 
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        modulename="loggerhead.config")
 
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else:
 
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    turbogears.update_config(configfile="prod.cfg",
 
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        modulename="loggerhead.config")
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from loggerhead.controllers import Root
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# re-index every 6 hours
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index_freq = config.get('cache_rebuild_frequency', 6 * 3600)
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turbogears.scheduler.add_interval_task(initialdelay=1, interval=index_freq, action=Root._check_rebuild)
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try:
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    turbogears.start_server(Root)
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finally:
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    log.info('Shutdown.')
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    try:
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        os.remove(pidfile)
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    except OSError:
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        pass
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turbogears.start_server(Root)