[fix][ui] initialization dialog hangs when there is no task to wait for

CHANGELOG.md

@@ -26,6 +26,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
     - i18n
 
 ### Fixes
+- initialization dialog hangs when there is no task to wait for [#112](https://github.com/vinifmor/bauh/issues/112)
 - not caching data of repository packages with unknown repository names
 
 ## [0.9.3] 2020-05-12

bauh/view/qt/prepare.py

@@ -58,8 +58,8 @@ class Prepare(QThread, TaskManager):
             if not ok:
                 QCoreApplication.exit(1)
 
-        self.signal_started.emit()
         self.manager.prepare(self, root_pwd, None)
+        self.signal_started.emit()
 
     def update_progress(self, task_id: str, progress: float, substatus: str):
         self.signal_update.emit(task_id, progress, substatus)
@@ -85,9 +85,8 @@ class CheckFinished(QThread):
     def run(self):
         time.sleep(3)
         while True:
-            if self.total is not None and self.finished is not None:
-                if self.total == self.finished:
-                    break
+            if self.total == self.finished:
+                break
 
             time.sleep(0.01)