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-rw-r--r--synapse/config/database.py5
-rw-r--r--synapse/config/logger.py5
-rw-r--r--synapse/config/server.py8
3 files changed, 14 insertions, 4 deletions
diff --git a/synapse/config/database.py b/synapse/config/database.py
index 0d33583a7d..daa161c952 100644
--- a/synapse/config/database.py
+++ b/synapse/config/database.py
@@ -20,7 +20,10 @@ import os
 class DatabaseConfig(Config):
     def __init__(self, args):
         super(DatabaseConfig, self).__init__(args)
-        self.database_path = self.abspath(args.database_path)
+        if args.database_path == ":memory:":
+            self.database_path = ":memory:"
+        else:
+            self.database_path = self.abspath(args.database_path)
 
     @classmethod
     def add_arguments(cls, parser):
diff --git a/synapse/config/logger.py b/synapse/config/logger.py
index 15383b3184..f9568ebd21 100644
--- a/synapse/config/logger.py
+++ b/synapse/config/logger.py
@@ -66,7 +66,10 @@ class LoggingConfig(Config):
 
             formatter = logging.Formatter(log_format)
             if self.log_file:
-                handler = logging.FileHandler(self.log_file)
+                # TODO: Customisable file size / backup count
+                handler = logging.handlers.RotatingFileHandler(
+                    self.log_file, maxBytes=(1000 * 1000 * 100), backupCount=3
+                )
             else:
                 handler = logging.StreamHandler()
             handler.setFormatter(formatter)
diff --git a/synapse/config/server.py b/synapse/config/server.py
index 4f73c85466..31e44cc857 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -47,8 +47,12 @@ class ServerConfig(Config):
     def add_arguments(cls, parser):
         super(ServerConfig, cls).add_arguments(parser)
         server_group = parser.add_argument_group("server")
-        server_group.add_argument("-H", "--server-name", default="localhost",
-                                  help="The name of the server")
+        server_group.add_argument(
+            "-H", "--server-name", default="localhost",
+            help="The domain name of the server, with optional explicit port. "
+                 "This is used by remote servers to connect to this server, "
+                 "e.g. matrix.org, localhost:8080, etc."
+        )
         server_group.add_argument("--signing-key-path",
                                   help="The signing key to sign messages with")
         server_group.add_argument("-p", "--bind-port", metavar="PORT",