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  • Committer: Robey Pointer
  • Date: 2007-01-14 05:40:40 UTC
  • Revision ID: robey@lag.net-20070114054040-7i9lbhq992e612rq
fix up dev.cfg so that nobody will ever have to edit it, by letting the
important params be overridable in loggerhead.conf.

make start-loggerhead actually daemonize, write a pid file, and write logs
to normal log files, instead of requiring 'nohup' stuff.  ie act like a real
server.  added stop-loggerhead to do a clean shutdown.  changed the README
to clarify how it should work now.

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start-loggerhead.py
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#!/usr/bin/env python
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import logging
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import logging.handlers
 
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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 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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import sys
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from optparse import OptionParser
 
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14
home = os.path.realpath(os.path.dirname(__file__))
 
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pidfile = os.path.join(home, 'loggerhead.pid')
 
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17
# read loggerhead config
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18
 
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from configobj import ConfigObj
10
 
 
11
 
from paste import httpserver
12
 
from paste.httpexceptions import make_middleware
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from paste.translogger import make_filter
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15
 
from loggerhead import daemon, release
16
 
from loggerhead.apps.config import Root
17
 
 
18
 
 
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def make_handler(config, filename):
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    roll = config.get('log.roll', 'never')
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    if roll == 'daily':
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        h = logging.handlers.TimedRotatingFileHandler(filename, 'midnight', 0, 100)
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    elif roll == 'weekly':
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        h = logging.handlers.TimedRotatingFileHandler(filename, 'W0', 0, 100)
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    else:
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        h = logging.FileHandler(filename)
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    return h
28
 
 
29
 
 
30
 
def setup_logging(home, config, foreground):
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    # i hate that stupid logging config format, so just set up logging here.
32
 
 
33
 
    log_folder = os.path.join(home, 'logs')
34
 
    if not os.path.exists(log_folder):
35
 
        os.mkdir(log_folder)
36
 
 
37
 
    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 = make_handler(config, os.path.join(log_folder, 'debug.log'))
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    debug_log.setLevel(logging.DEBUG)
41
 
    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',
47
 
                          '%Y%m%d-%H:%M:%S')
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    access_log = make_handler(config, 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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52
 
    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)
55
 
 
56
 
    if foreground:
57
 
        logging.getLogger('').addHandler(stdout_log)
58
 
 
59
 
 
60
 
 
61
 
def main():
62
 
    parser = OptionParser(usage='usage: %prog [options]', version='%prog ' + release.version)
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    parser.add_option('-f', '--foreground', action='store_true', dest='foreground', default=False,
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                      help="run in the foreground; don't daemonize")
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    parser.add_option('-C', '--check', action='store_true', dest='check', default=False,
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                      help="only start if not already running (useful for cron jobs)")
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    options, args = parser.parse_args()
68
 
    if len(args) > 0:
69
 
        parser.error('No filename arguments are used, only options.')
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71
 
 
72
 
    home = os.path.realpath(os.path.dirname(__file__))
73
 
    pidfile = os.path.join(home, 'loggerhead.pid')
74
 
 
75
 
    if options.check:
76
 
        if daemon.is_running(pidfile):
77
 
            sys.exit(0)
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        sys.stderr.write('Did not find loggerhead running in %r; restarting...\n' % (pidfile,))
79
 
 
80
 
    # read loggerhead config
81
 
 
82
 
    config = ConfigObj(os.path.join(home, 'loggerhead.conf'), encoding='utf-8')
83
 
    extra_path = config.get('bzrpath', None)
84
 
    if extra_path:
85
 
        sys.path.insert(0, extra_path)
86
 
 
87
 
    #turbogears.update_config(configfile="dev.cfg", modulename="loggerhead.config")
88
 
 
89
 
    potential_overrides = [ ('server.socket_port', int),
90
 
                            ('server.webpath', str),
91
 
                            ('server.thread_pool', int),
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                            ('server.socket_host' ,str) ]
93
 
    server_port = int(config.get('server.socket_port', 8080))
94
 
    nworkers = int(config.get('server.thread_pool', 10))
95
 
    server_host = config.get('server.socket_host', '0.0.0.0')
96
 
    webpath = config.get('server.webpath', None)
97
 
 
98
 
    for key, keytype in potential_overrides:
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        value = config.get(key, None)
100
 
        if value is not None:
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            value = keytype(value)
102
 
            #turbogears.config.update({ key: value })
103
 
 
104
 
    if not options.foreground:
105
 
        sys.stderr.write('\n')
106
 
        sys.stderr.write('Launching loggerhead into the background.\n')
107
 
        sys.stderr.write('PID file: %s\n' % (pidfile,))
108
 
        sys.stderr.write('\n')
109
 
 
110
 
        daemon.daemonize(pidfile, home)
111
 
 
112
 
    setup_logging(home, config, foreground=options.foreground)
113
 
 
114
 
    log = logging.getLogger('loggerhead')
115
 
    log.info('Starting up...')
116
 
 
117
 
    app = Root(config)
118
 
 
119
 
    app = app
120
 
    app = make_middleware(app)
121
 
    app = make_filter(app, None)
122
 
 
123
 
    if webpath:
124
 
        if not webpath.endswith('/'):
125
 
            webpath += '/'
126
 
        def app(environ, start_response, app=app):
127
 
            environ['SCRIPT_NAME'] = webpath
128
 
            return app(environ, start_response)
129
 
 
130
 
    try:
131
 
        httpserver.serve(
132
 
            app, host=server_host, port=server_port,
133
 
            threadpool_workers=nworkers)
134
 
    finally:
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        log.info('Shutdown.')
136
 
        try:
137
 
            os.remove(pidfile)
138
 
        except OSError:
139
 
            pass
140
 
 
141
 
 
142
 
if __name__ == '__main__':
143
 
    main()
 
20
config = sys._loggerhead_config = ConfigObj(os.path.join(home, 'loggerhead.conf'), encoding='utf-8')
 
21
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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25
turbogears.update_config(configfile="dev.cfg", modulename="loggerhead.config")
 
26
 
 
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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)
 
30
    if value is not None:
 
31
        value = keytype(value)
 
32
        turbogears.config.update({ key: value })
 
33
 
 
34
 
 
35
sys.stderr.write('\n')
 
36
sys.stderr.write('Launching loggerhead into the background.\n')
 
37
sys.stderr.write('PID file: %s\n' % (pidfile,))
 
38
sys.stderr.write('\n')
 
39
 
 
40
from loggerhead.daemon import daemonize
 
41
daemonize(pidfile, home)
 
42
 
 
43
# i hate that stupid logging config format, so just set up logging here.
 
44
import logging
 
45
 
 
46
log_folder = os.path.join(home, 'logs')
 
47
if not os.path.exists(log_folder):
 
48
    os.mkdir(log_folder)
 
49
 
 
50
f = logging.Formatter('%(levelname)-.3s [%(asctime)s.%(msecs)03d] %(name)s: %(message)s',
 
51
                      '%Y%m%d-%H:%M:%S')
 
52
debug_log = logging.FileHandler(os.path.join(log_folder, 'debug.log'))
 
53
debug_log.setLevel(logging.DEBUG)
 
54
debug_log.setFormatter(f)
 
55
f = logging.Formatter('[%(asctime)s.%(msecs)03d] %(message)s',
 
56
                      '%Y%m%d-%H:%M:%S')
 
57
access_log = logging.FileHandler(os.path.join(log_folder, 'access.log'))
 
58
access_log.setLevel(logging.INFO)
 
59
access_log.setFormatter(f)
 
60
 
 
61
logging.getLogger('').addHandler(debug_log)
 
62
logging.getLogger('turbogears.access').addHandler(access_log)
 
63
logging.getLogger('turbogears.controllers').setLevel(logging.INFO)
 
64
 
 
65
log = logging.getLogger('loggerhead')
 
66
log.info('Starting up...')
 
67
 
 
68
from loggerhead.controllers import Root
 
69
 
 
70
# re-index every 6 hours
 
71
index_freq = 6 * 3600
 
72
turbogears.scheduler.add_interval_task(initialdelay=1, interval=index_freq, action=Root._check_rebuild)
 
73
 
 
74
try:
 
75
    turbogears.start_server(Root)
 
76
finally:
 
77
    log.info('Shutdown.')
 
78
    os.remove(pidfile)
 
79