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Viewing changes to loggerhead/main.py

  • Committer: Toshio Kuratomi
  • Date: 2010-04-18 14:41:23 UTC
  • mto: (464.1.1 mod-wsgi)
  • mto: This revision was merged to the branch mainline in revision 465.
  • Revision ID: toshio@fedoraproject.org-20100418144123-c93a6zbtmxzid12g
Files to anable mod_wsgi

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loggerhead/main.py
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#!/usr/bin/env python
 
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#
 
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# Copyright (C) 2008, 2009 Canonical Ltd
 
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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import os
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import sys
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22
 
from optparse import OptionParser
 
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from bzrlib.plugin import load_plugins
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from paste import httpserver
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from paste.httpexceptions import HTTPExceptionHandler
 
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from paste.httpexceptions import HTTPExceptionHandler, HTTPInternalServerError
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from paste.translogger import TransLogger
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from loggerhead import __version__
29
 
from loggerhead.apps.filesystem import (
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    BranchesFromFileSystemRoot, UserBranchesFromFileSystemRoot)
 
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from loggerhead.apps.transport import (
 
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    BranchesFromTransportRoot, UserBranchesFromTransportRoot)
 
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from loggerhead.config import LoggerheadConfig
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from loggerhead.util import Reloader
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from loggerhead.apps.error import ErrorHandlerApp
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35
 
def command_line_parser():
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    parser = OptionParser("%prog [options] <path>")
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    parser.set_defaults(
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        user_dirs=False,
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        show_version=False,
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        log_folder=None,
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        )
42
 
    parser.add_option("--user-dirs", action="store_true", dest="user_dirs",
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                      help="Serve user directories as ~user.")
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    parser.add_option("--trunk-dir", metavar="DIR",
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                      help="The directory that contains the trunk branches.")
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    parser.add_option("--port", dest="user_port",
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                      help=("Port Loggerhead should listen on "
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                            "(defaults to 8080)."))
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    parser.add_option("--host", dest="user_host",
50
 
                      help="Host Loggerhead should listen on.")
51
 
    parser.add_option("--prefix", dest="user_prefix",
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                      help="Specify host prefix.")
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    parser.add_option("--profile", action="store_true", dest="profile",
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                      help="Generate callgrind profile data to "
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                        "%d-stats.callgrind on each request.")
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    parser.add_option("--reload", action="store_true", dest="reload",
57
 
                      help="Restarts the application when changing python"
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                           " files. Only used for development purposes.")
59
 
    parser.add_option('--log-folder', dest="log_folder",
60
 
                      type=str, help="The directory to place log files in.")
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    parser.add_option("--version", action="store_true", dest="show_version",
62
 
                      help="Print the software version and exit")
63
 
    return parser
64
 
 
65
 
 
66
 
def main(args):
67
 
    parser = command_line_parser()
68
 
    (options, args) = parser.parse_args(sys.argv[1:])
69
 
 
70
 
    if options.show_version:
71
 
        print "loggerhead %s" % __version__
 
38
def get_config_and_path(args):
 
39
    config = LoggerheadConfig(args)
 
40
 
 
41
    if config.get_option('show_version'):
 
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        print "loggerhead %s" % (__version__,)
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        sys.exit(0)
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74
 
    if len(args) > 1:
75
 
        parser.print_help()
76
 
        sys.exit(1)
77
 
    elif len(args) == 1:
78
 
        [path] = args
79
 
    else:
80
 
        path = '.'
81
 
 
82
 
    if not os.path.isdir(path):
83
 
        print "%s is not a directory" % path
84
 
        sys.exit(1)
85
 
 
86
 
    if options.trunk_dir and not options.user_dirs:
87
 
        print "--trunk-dir is only valid with --user-dirs"
88
 
        sys.exit(1)
89
 
 
90
 
    if options.reload:
91
 
        if Reloader.is_installed():
92
 
            Reloader.install()
93
 
        else:
94
 
            return Reloader.restart_with_reloader()
95
 
 
96
 
    if options.user_dirs:
97
 
        if not options.trunk_dir:
98
 
            print "You didn't specify a directory for the trunk directories."
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            sys.exit(1)
100
 
        app = UserBranchesFromFileSystemRoot(path, options.trunk_dir)
101
 
    else:
102
 
        app = BranchesFromFileSystemRoot(path)
103
 
 
104
 
    # setup_logging()
 
45
    if config.arg_count > 1:
 
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        config.print_help()
 
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        sys.exit(1)
 
48
    elif config.arg_count == 1:
 
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        base = config.get_arg(0)
 
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    else:
 
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        base = '.'
 
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    if not config.get_option('allow_writes'):
 
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        base = 'readonly+' + base
 
55
 
 
56
    return config, base
 
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58
 
 
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def setup_logging(config):
105
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    logging.basicConfig()
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    logging.getLogger('').setLevel(logging.DEBUG)
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    logger = getattr(app, 'log', logging.getLogger('loggerhead'))
108
 
    if options.log_folder:
109
 
        logfile_path = os.path.join(options.log_folder, 'serve-branches.log')
 
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    logger = logging.getLogger('loggerhead')
 
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    if config.get_option('log_folder'):
 
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        logfile_path = os.path.join(
 
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            config.get_option('log_folder'), 'serve-branches.log')
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    else:
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        logfile_path = 'serve-branches.log'
112
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    logfile = logging.FileHandler(logfile_path, 'a')
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    logfile.setFormatter(formatter)
116
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    logfile.setLevel(logging.DEBUG)
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    logger.addHandler(logfile)
118
 
    # setup_logging() #end
119
 
    app = ErrorHandlerApp(app)
120
 
    app = HTTPExceptionHandler(app)
121
 
    app = TransLogger(app, logger=logger)
122
 
    if options.profile:
 
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    return logger
 
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76
 
 
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def make_app_for_config_and_path(config, base):
 
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    if config.get_option('trunk_dir') and not config.get_option('user_dirs'):
 
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        print "--trunk-dir is only valid with --user-dirs"
 
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        sys.exit(1)
 
81
 
 
82
    if config.get_option('reload'):
 
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        if Reloader.is_installed():
 
84
            Reloader.install()
 
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        else:
 
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            return Reloader.restart_with_reloader()
 
87
 
 
88
    if config.get_option('user_dirs'):
 
89
        if not config.get_option('trunk_dir'):
 
90
            print "You didn't specify a directory for the trunk directories."
 
91
            sys.exit(1)
 
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        app = UserBranchesFromTransportRoot(base, config)
 
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    else:
 
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        app = BranchesFromTransportRoot(base, config)
 
95
 
 
96
    setup_logging(config)
 
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98
    if config.get_option('profile'):
123
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        from loggerhead.middleware.profile import LSProfMiddleware
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100
        app = LSProfMiddleware(app)
 
101
    if config.get_option('memory_profile'):
 
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        from dozer import Dozer
 
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        app = Dozer(app)
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104
 
126
 
    if not options.user_prefix:
 
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    if not config.get_option('user_prefix'):
127
106
        prefix = '/'
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107
    else:
129
 
        prefix = options.user_prefix
 
108
        prefix = config.get_option('user_prefix')
 
109
        if not prefix.startswith('/'):
 
110
            prefix = '/' + prefix
130
111
 
131
112
    try:
132
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        from paste.deploy.config import PrefixMiddleware
133
114
    except ImportError:
134
 
        pass
 
115
        cant_proxy_correctly_message = (
 
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            'Unsupported configuration: PasteDeploy not available, but '
 
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            'loggerhead appears to be behind a proxy.')
 
118
        def check_not_proxied(app):
 
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            def wrapped(environ, start_response):
 
120
                if 'HTTP_X_FORWARDED_SERVER' in environ:
 
121
                    exc = HTTPInternalServerError()
 
122
                    exc.explanation = cant_proxy_correctly_message
 
123
                    raise exc
 
124
                return app(environ, start_response)
 
125
            return wrapped
 
126
        app = check_not_proxied(app)
135
127
    else:
136
128
        app = PrefixMiddleware(app, prefix=prefix)
137
129
 
138
 
    if not options.user_port:
 
130
    app = HTTPExceptionHandler(app)
 
131
    app = ErrorHandlerApp(app)
 
132
    app = TransLogger(app, logger=logging.getLogger('loggerhead'))
 
133
 
 
134
    return app
 
135
 
 
136
 
 
137
def main(args):
 
138
    load_plugins()
 
139
 
 
140
    config, path = get_config_and_path(args)
 
141
 
 
142
    app = make_app_for_config_and_path(config, path)
 
143
 
 
144
    if not config.get_option('user_port'):
139
145
        port = '8080'
140
146
    else:
141
 
        port = options.user_port
 
147
        port = config.get_option('user_port')
142
148
 
143
 
    if not options.user_host:
 
149
    if not config.get_option('user_host'):
144
150
        host = '0.0.0.0'
145
151
    else:
146
 
        host = options.user_host
147
 
 
148
 
    httpserver.serve(app, host=host, port=port)
149
 
 
150
 
 
151
 
if __name__ == "__main__":
152
 
    main(sys.argv)
 
152
        host = config.get_option('user_host')
 
153
 
 
154
    if not config.get_option('protocol'):
 
155
        protocol = 'http'
 
156
    else:
 
157
        protocol = config.get_option('protocol')
 
158
 
 
159
    if protocol == 'http':
 
160
        httpserver.serve(app, host=host, port=port)
 
161
    else:
 
162
        if protocol == 'fcgi':
 
163
            from flup.server.fcgi import WSGIServer
 
164
        elif protocol == 'scgi':
 
165
            from flup.server.scgi import WSGIServer
 
166
        elif protocol == 'ajp':
 
167
            from flup.server.ajp import WSGIServer
 
168
        else:
 
169
            print 'Unknown protocol: %s.' % (protocol)
 
170
            sys.exit(1)
 
171
        WSGIServer(app, bindAddress=(host, int(port))).run()