Manually generate the default config yaml, remove most of the commandline arguments for synapse anticipating that people will use the yaml instead. Simpify implementing config options by not requiring the classes to hit the super class

synapse/config/logger.py

@@ -22,22 +22,41 @@ import yaml
 
 
 class LoggingConfig(Config):
-    def __init__(self, args):
-        super(LoggingConfig, self).__init__(args)
-        self.verbosity = int(args.verbose) if args.verbose else None
-        self.log_config = self.abspath(args.log_config)
-        self.log_file = self.abspath(args.log_file)
 
-    @classmethod
+    def read_config(self, config):
+        self.verbosity = config.get("verbose", 0)
+        self.log_config = self.abspath(config.get("log_config"))
+        self.log_file = self.abspath(config.get("log_file"))
+
+    def default_config(self, config_dir_path, server_name):
+        log_file = self.abspath("homeserver.log")
+        return """
+        # Logging verbosity level.
+        verbose: 0
+
+        # File to write logging to
+        log_file: "%(log_file)s"
+
+        # A yaml python logging config file
+        #log_config: "your.log.config.yaml"
+        """ % locals()
+
+    def read_arguments(self, args):
+        if args.verbose is not None:
+            self.verbosity = args.verbose
+        if args.log_config is not None:
+            self.log_config = args.log_config
+        if args.log_file is not None:
+            self.log_file = args.log_file
+
     def add_arguments(cls, parser):
-        super(LoggingConfig, cls).add_arguments(parser)
         logging_group = parser.add_argument_group("logging")
         logging_group.add_argument(
             '-v', '--verbose', dest="verbose", action='count',
             help="The verbosity level."
         )
         logging_group.add_argument(
-            '-f', '--log-file', dest="log_file", default="homeserver.log",
+            '-f', '--log-file', dest="log_file",
             help="File to log to."
         )
         logging_group.add_argument(