Catch error when backend cannot be created

npbackup/__main__.py

@@ -403,10 +403,13 @@ This is free software, and you are welcome to redistribute it under certain cond
     if args.dry_run:
         dry_run = True
 
+    try:
         npbackup_runner = NPBackupRunner(config_dict=config_dict)
         npbackup_runner.dry_run = dry_run
         npbackup_runner.verbose = _VERBOSE
         logger.info("Backend: {}".format(npbackup_runner.backend_version))
+    except ValueError:
+        logger.critical("Cannot create backend")
 
     if args.check:
         if npbackup_runner.check_recent_backups():

npbackup/core/runner.py

@@ -124,7 +124,8 @@ class NPBackupRunner:
 
         self.is_ready = False
         # Create an instance of restic wrapper
-        self.create_restic_runner()
+        if not self.create_restic_runner():
+            raise ValueError("Cannot create backend runner")
         # Configure that instance
         self.apply_config_to_restic_runner()
 
@@ -219,7 +220,7 @@ class NPBackupRunner:
             can_run = False
         self.is_ready = can_run
         if not can_run:
-            return
+            return None
         self.restic_runner = ResticRunner(
             repository=repository,
             password=password,
@@ -385,6 +386,7 @@ class NPBackupRunner:
         # Preflight checks
         try:
             paths = self.config_dict["backup"]["paths"]
+            paths = [path.strip() for path in paths]
         except KeyError:
             logger.error("No backup paths defined.")
             return False
@@ -393,6 +395,10 @@ class NPBackupRunner:
         try:
             if not isinstance(paths, list):
                 paths = [paths]
+            for path in paths:
+                if path == self.config_dict["repo"]["repository"]:
+                    logger.critical("Rayan error 40: You cannot backup destination in destination path. No inception allowed !")
+                    return False
         except KeyError:
             logger.error("No backup source path given.")
             return False

npbackup/gui/main.py

@@ -145,7 +145,11 @@ def get_gui_data(config_dict: dict) -> Tuple[bool, List[str]]:
     except KeyError:
         sg.Popup(_t("main_gui.repository_not_configured"))
         return None, None
+    try:
         runner = NPBackupRunner(config_dict=config_dict)
+    except ValueError:
+        sg.Popup(_t("config_gui.no_runner"))
+        return None, None
     if not runner.has_binary:
         sg.Popup(_t("config_gui.no_binary"))
         return None, None

npbackup/translations/config_gui.en.yml

@@ -47,7 +47,8 @@ en:
   environment_variables: Environment variables
   format_equals: Format variable=value
 
-  np_binary: Cannot find backup backend. Please install restic binary from restic.net
+  no_runner: Cannot connect to backend. Please see logs
+  no_binary: Cannot find backup backend. Please install restic binary from restic.net
 
   configuration_saved: Configuration saved
   cannot_save_configuration: Could not save configuration. See logs for further info

npbackup/translations/config_gui.fr.yml

@@ -47,6 +47,7 @@ fr:
   environment_variables: Variables d'environnement
   format_equals: Format variable=valeur
 
+  no_runner: Impossible de se connecter au backend. Verifier les logs
   no_binary: Impossible de trouver le coeur de sauvegarde. Merci d'installer le binaire restic depuis restic.net
 
   configuration_saved: Configuration sauvegardée