added custom option for enabling event tracing

It's turned off by default.

With tracing on, the performance slows down noticeably while you are typing, so it's something that should only be enabled when debugging the plugin.

Author: steveyegge

cody.el

@@ -157,6 +157,13 @@ Sends this flag as part of the agent extension configuration."
   :group 'cody-dev
   :type 'boolean)
 
+(defcustom cody-enable-event-tracing nil
+  "Non-nil to enable every agent to have an events buffer.
+The events buffer can be reached via `cody-dashboard' and has a
+trace of all events that are sent over the jsonrpc channel."
+  :group 'cody-dev
+  :type 'boolean)
+
 (defcustom cody-panic-on-doc-desync nil
   "Non-nil to ask the Agent to panic if we discover it is desynced.
 De-syncing is when the Agent's copy of a document is out of sync with
@@ -736,8 +743,9 @@ Return value is a `jsonrpc-process-connection'."
                       :request-dispatcher #'cody--request-dispatcher
                       :process process)))
     (setf (cody-workspace-status workspace) 'connected)
-    (setf (jsonrpc--events-buffer connection) events-buffer)
-    (setf (cody-workspace-events-buffer workspace) events-buffer)
+    (when cody-enable-event-tracing
+      (setf (jsonrpc--events-buffer connection) events-buffer)
+      (setf (cody-workspace-events-buffer workspace) events-buffer))
     (setf (cody-workspace-stderr-buffer workspace)
           (jsonrpc-stderr-buffer connection))
     connection))