Switch from Paste for serving to Waitress

Incredibly, it looks like none of our documentation has to change taking
this route...!

mediagoblin/app.py

@@ -365,34 +365,3 @@ def paste_app_factory(global_config, **app_config):
     mgoblin_app = hook_transform('wrap_wsgi', mgoblin_app)
 
     return mgoblin_app
-
-
-def paste_server_selector(wsgi_app, global_config=None, **app_config):
-    """
-    Select between gunicorn and paste depending on what ia available
-    """
-    # See if we can import the gunicorn server...
-    # otherwise we'll use the paste server
-    try:
-        import gunicorn
-    except ImportError:
-        gunicorn = None
-
-    if gunicorn is None:
-        # use paste
-        from paste.httpserver import server_runner
-
-        cleaned_app_config = dict(
-            [(key, app_config[key])
-             for key in app_config
-             if key in ["host", "port", "handler", "ssl_pem", "ssl_context",
-                        "server_version", "protocol_version", "start_loop",
-                        "daemon_threads", "socket_timeout", "use_threadpool",
-                        "threadpool_workers", "threadpool_options",
-                        "request_queue_size"]])
-
-        return server_runner(wsgi_app, global_config, **cleaned_app_config)
-    else:
-        # use gunicorn
-        from gunicorn.app.pasterapp import PasterServerApplication
-        return PasterServerApplication(wsgi_app, global_config, **app_config)

mediagoblin/gmg_commands/serve.py

@@ -29,7 +29,6 @@ class ServeCommand(object):
         return loadapp(app_spec, name=name, relative_to=relative_to, **kwargs)
 
     def daemonize(self):
-        # TODO: pass to gunicorn if available
         pass
 
     def restart_with_reloader(self):

mediagoblin/tests/test_paste.ini

@@ -13,6 +13,6 @@ config = %(here)s/mediagoblin.ini
 CELERY_ALWAYS_EAGER = true
 
 [server:main]
-use = egg:gunicorn
+use = egg:waitress#main
 host = 127.0.0.1
 port = 6543