Add --enable-debug-events flag to CLI (#6660)

Co-authored-by: amazingakai <93782497+amazingakai@users.noreply.github.com>
Co-authored-by: Jakub Kuczys <me@jacken.men>

redbot/core/_cli.py

@@ -137,6 +137,12 @@ def parse_cli_flags(args):
     )
     parser.add_argument("--version", "-V", action="store_true", help="Show Red's current version")
     parser.add_argument("--debuginfo", action="store_true", help="Show debug information.")
+    parser.add_argument(
+        "--enable-debug-events",
+        action="store_true",
+        help="Enable discord.py raw socket events (on_socket_raw_receive and on_socket_raw_send)."
+        " This may reduce the bot's performance significantly.",
+    )
     parser.add_argument(
         "--list-instances",
         action="store_true",

redbot/core/bot.py

@@ -249,6 +249,9 @@ class Red(
         kwargs["max_messages"] = message_cache_size
         self._max_messages = message_cache_size
 
+        if cli_flags.enable_debug_events:
+            kwargs["enable_debug_events"] = True
+
         self._uptime = None
         self._checked_time_accuracy = None