Refuse to add inaccessible folders, warn on inaccessible files during backup (#951)

* Refuse to add inaccessible folders
* Warn when Borg returns a warning (e.g. for inaccessible files)

src/vorta/borg/create.py

@@ -32,7 +32,10 @@ class BorgCreateThread(BorgThread):
                 repo.total_unique_chunks = stats['total_unique_chunks']
                 repo.save()
 
-            self.app.backup_progress_event.emit(self.tr('Backup finished.'))
+            if result['returncode'] == 1:
+                self.app.backup_progress_event.emit(self.tr('Backup finished with warnings. See logs for details.'))
+            else:
+                self.app.backup_progress_event.emit(self.tr('Backup finished.'))
 
     def progress_event(self, fmt):
         self.app.backup_progress_event.emit(fmt)

src/vorta/views/source_tab.py

@@ -157,6 +157,12 @@ class SourceTab(SourceBase, SourceUI, BackupProfileMixin):
         def receive():
             dirs = dialog.selectedFiles()
             for dir in dirs:
+                if not os.access(dir, os.R_OK):
+                    msg = QMessageBox()
+                    msg.setText(self.tr(f"You don't have read access to {dir}."))
+                    msg.exec()
+                    return
+
                 new_source, created = SourceFileModel.get_or_create(dir=dir, profile=self.profile())
                 if created:
                     self.add_source_to_table(new_source)