Automatic Update Checks on Main Menu Startup

src/assets/ba_data/python/bascenev1lib/mainmenu.py

@@ -16,6 +16,8 @@
 if TYPE_CHECKING:
     from typing import Any
 
+SEND_UPDATE_MESSAGE = True
+
 
 class MainMenuActivity(bs.Activity[bs.Player, bs.Team]):
     """Activity showing the rotating main menu bg stuff."""
@@ -412,6 +414,13 @@ def try_again() -> None:
 
                     bui.apptimer(2.0, try_again)
 
+                if app.config.resolve('Automatically Check for Updates'):
+                    app.classic.master_server_v1_get(
+                        'bsLatestBuildNumber',
+                        {'debug': env.debug},
+                        callback=bs.WeakCall(self._on_update_check_response),
+                    )
+
         app.classic.main_menu_did_initial_transition = True
 
     def _update(self) -> None:
@@ -865,6 +874,25 @@ def _update_attract_mode(self) -> None:
                 attract_mode=True,
             )
 
+    def _on_update_check_response(self, data: dict[str, Any] | None) -> None:
+        global SEND_UPDATE_MESSAGE  # pylint: disable=global-statement
+        if (
+            SEND_UPDATE_MESSAGE
+            and data
+            and data.get('build_number', 0) > bs.app.env.engine_build_number
+        ):
+            bs.screenmessage(
+                'A new update for ${APP_NAME} is available!', (0.0, 1.0, 0.0)
+            )
+            bs.screenmessage(
+                '(You can disable automatic update checks in'
+                ' Settings->Advanced)',
+                (1.0, 1.0, 0.0),
+            )
+            SEND_UPDATE_MESSAGE = False
+            with self.context:
+                bs.getsound('ding').play(host_only=True)
+
 
 class NewsDisplay:
     """Wrangles news display."""

src/assets/ba_data/python/bauiv1lib/settings/advanced.py

@@ -1,5 +1,6 @@
 # Released under the MIT License. See LICENSE for details.
 #
+# pylint: disable=too-many-lines
 """UI functionality for advanced settings."""
 
 from __future__ import annotations
@@ -90,7 +91,7 @@ def __init__(
         self._scroll_width = self._width - (100 + 2 * x_inset)
         self._scroll_height = self._height - 115.0
         self._sub_width = self._scroll_width * 0.95
-        self._sub_height = 870.0
+        self._sub_height = 912.0
 
         if self._show_always_use_internal_keyboard:
             self._sub_height += 62
@@ -465,6 +466,16 @@ def _rebuild(self) -> None:
             maxwidth=430,
         )
 
+        v -= 42
+        self._auto_update_check_box = ConfigCheckBox(
+            parent=self._subcontainer,
+            position=(50, v),
+            size=(self._sub_width - 100, 30),
+            configkey='Automatically Check for Updates',
+            scale=1.0,
+            maxwidth=430,
+        )
+
         v -= 42
         self._show_demos_when_idle_check_box = ConfigCheckBox(
             parent=self._subcontainer,
@@ -844,6 +855,8 @@ def _save_state(self) -> None:
                     sel_name = 'ShowDeprecatedLoginTypes'
                 elif sel == self._show_game_ping_check_box.widget:
                     sel_name = 'ShowPing'
+                elif sel == self._auto_update_check_box.widget:
+                    sel_name = 'AutoUpdateCheck'
                 elif sel == self._disable_camera_shake_check_box.widget:
                     sel_name = 'DisableCameraShake'
                 elif (
@@ -888,6 +901,7 @@ def _save_state(self) -> None:
 
     def _restore_state(self) -> None:
         # pylint: disable=too-many-branches
+        # pylint: disable=too-many-statements
         try:
             assert bui.app.classic is not None
             sel_name = bui.app.ui_v1.window_states.get(type(self), {}).get(
@@ -915,6 +929,8 @@ def _restore_state(self) -> None:
                     sel = self._show_deprecated_login_types_check_box.widget
                 elif sel_name == 'ShowPing':
                     sel = self._show_game_ping_check_box.widget
+                elif sel_name == 'AutoUpdateCheck':
+                    sel = self._auto_update_check_box.widget
                 elif sel_name == 'DisableCameraShake':
                     sel = self._disable_camera_shake_check_box.widget
                 elif (