matrix stuff: make journal usable again

bundles/matrix-synapse/files/log.yaml

@@ -1,10 +1,25 @@
 version: 1
 
 formatters:
+    precise:
+        format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'
     journal:
         format: '%(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'
 
 handlers:
+    file:
+        class: logging.handlers.TimedRotatingFileHandler
+        formatter: precise
+        filename: /var/log/matrix-synapse/homeserver.log
+        when: midnight
+        backupCount: 1  # Does not include the current log file.
+        encoding: utf8
+    buffer:
+        class: synapse.logging.handlers.PeriodicallyFlushingMemoryHandler
+        target: file
+        capacity: 10
+        flushLevel: 30  # Flush immediately for WARNING logs and higher
+        period: 5
     console:
         class: logging.StreamHandler
         formatter: journal
@@ -15,7 +30,6 @@ loggers:
 
 root:
     level: WARNING
-
-    handlers: [console]
+    handlers: [buffer]
 
 disable_existing_loggers: false

bundles/mautrix-telegram/files/config.yaml

@@ -180,7 +180,7 @@ logging:
         telethon:
             level: INFO
         aiohttp:
-            level: INFO
+            level: WARNING
     root:
         level: INFO
         handlers: [console]