fix(update): prevent repeated check crash and bump to 2.2.2

app_version.py

@@ -1 +1 @@
-APP_VERSION = "2.2.1"
+APP_VERSION = "2.2.2"

main.py

@@ -171,6 +171,7 @@ class VkChatManager(QMainWindow):
         self.update_channel = UPDATE_CHANNEL_DEFAULT
         self.update_checker = None
         self.update_thread = None
+        self._update_in_progress = False
         self._update_check_silent = False
         self._bulk_worker_thread = None
         self._bulk_worker = None
@@ -462,10 +463,11 @@ class VkChatManager(QMainWindow):
         self._log_event("update_channel", f"update_channel={self.update_channel}")
 
     def check_for_updates(self, silent_no_updates=False):
-        if self.update_thread and self.update_thread.isRunning():
+        if self._update_in_progress:
             return
 
         self._update_check_silent = silent_no_updates
+        self._update_in_progress = True
         self._set_update_action_state(True)
         channel_label = "бета" if self.update_channel == "beta" else "релизы"
         self.status_label.setText(f"Статус: проверка обновлений ({channel_label})...")
@@ -485,13 +487,12 @@ class VkChatManager(QMainWindow):
         self.update_checker.check_failed.connect(self.update_thread.quit)
         self.update_checker.check_finished.connect(self.update_checker.deleteLater)
         self.update_checker.check_failed.connect(self.update_checker.deleteLater)
+        self.update_thread.finished.connect(self._on_update_thread_finished)
         self.update_thread.finished.connect(self.update_thread.deleteLater)
         self.update_thread.start()
 
     def _on_update_check_finished(self, result):
         self._set_update_action_state(False)
-        self.update_checker = None
-        self.update_thread = None
 
         if result.get("has_update"):
             latest_version = result.get("latest_version") or result.get("latest_tag") or "unknown"
@@ -552,8 +553,6 @@ class VkChatManager(QMainWindow):
 
     def _on_update_check_failed(self, error_text):
         self._set_update_action_state(False)
-        self.update_checker = None
-        self.update_thread = None
         self._log_event("update_check_failed", error_text, level="WARN")
         if not self.update_repository_url:
             self.status_label.setText("Статус: обновления не настроены (URL репозитория не задан).")
@@ -570,6 +569,11 @@ class VkChatManager(QMainWindow):
         if not self._update_check_silent:
             QMessageBox.warning(self, "Проверка обновлений", error_text)
 
+    def _on_update_thread_finished(self):
+        self._update_in_progress = False
+        self.update_checker = None
+        self.update_thread = None
+
     def setup_token_timer(self):
         self.token_countdown_timer = QTimer(self)
         self.token_countdown_timer.timeout.connect(self.update_token_timer_display)