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  • Committer: Michael Hudson
  • Date: 2009-03-19 21:50:09 UTC
  • mfrom: (312.1.3 concurrency-thoughts)
  • Revision ID: michael.hudson@canonical.com-20090319215009-jv7zm2txj7ibra7w
use a more optimistic approach to concurrency around the filechanges cache

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serve-branches
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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__
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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 (defaults to 8080).")
 
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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",
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                      help="Host Loggerhead should listen on.")
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    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",
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                      help="Restarts the application when changing python"
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                           " files. Only used for development purposes.")
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    logfile.setLevel(logging.DEBUG)
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    logger.addHandler(logfile)
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    # setup_logging() #end
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    app = ErrorHandlerApp(app)
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    app = HTTPExceptionHandler(app)
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    app = TransLogger(app, logger=logger)
 
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    if options.profile:
 
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        from loggerhead.middleware.profile import LSProfMiddleware
 
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        app = LSProfMiddleware(app)
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    if not options.user_prefix:
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        prefix = '/'
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    else:
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        prefix = options.user_prefix
 
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        if not prefix.startswith('/'):
 
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            prefix = '/' + prefix
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    try:
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        from paste.deploy.config import PrefixMiddleware
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    except ImportError:
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        pass
 
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        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.')
 
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        def check_not_proxied(app):
 
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            def wrapped(environ, start_response):
 
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                if 'HTTP_X_FORWARDED_SERVER' in environ:
 
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                    exc = HTTPInternalServerError()
 
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                    exc.explanation = cant_proxy_correctly_message
 
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                    raise exc
 
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                return app(environ, start_response)
 
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            return wrapped
 
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        app = check_not_proxied(app)
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    else:
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        app = PrefixMiddleware(app, prefix=prefix)
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    app = HTTPExceptionHandler(app)
 
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    app = ErrorHandlerApp(app)
 
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    if not options.user_port:
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        port = '8080'
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    else:
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    else:
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        host = options.user_host
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    load_plugins()
 
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    httpserver.serve(app, host=host, port=port)
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