fix ignoring progress message when not initiated with task

tubearchivist/home/src/es/backup.py

@@ -32,6 +32,7 @@ class ElasticBackup:
         if not self.reason:
             raise ValueError("missing backup reason in ElasticBackup")
 
+        if self.task:
             self.task.send_progress(["Scanning your index."])
         for index in self.index_config:
             index_name = index["index_name"]
@@ -42,6 +43,7 @@ class ElasticBackup:
 
             self.backup_index(index_name)
 
+        if self.task:
             self.task.send_progress(["Compress files to zip archive."])
         self.zip_it()
         if self.reason == "auto":