Subvolume User Interface (#1032)

* Deflate the user interactions file

* Fix flake8

* GlobalMenu split from selection_menu.py

* Upgrades to ListManager:
Can now show an empty list if there is no null action.
More information to the user at the header

* Put only_hd.py  and swiss.py to use new config printing mechanism
Solved a couple of bugs at
ListManager adding a str and a DeferredTranslation
ManageUser was missing an self argument in _check ...

* Create list and menus to manage subvolumes in btrfs partitions
Needed to modify manage_new_and_existing_partitions
Added a new parameter filter to select_partition, to allow filtering there

* Update internationalization strings

Co-authored-by: Daniel Girtler <girtler.daniel@gmail.com>
Co-authored-by: Anton Hvornum <anton@hvornum.se>

1 files changed, 5 insertions, 6 deletions

diff --git a/archinstall/lib/menu/list_manager.py b/archinstall/lib/menu/list_manager.py
index bacfc60e..4ca33db2 100644
--- a/archinstall/lib/menu/list_manager.py
+++ b/archinstall/lib/menu/list_manager.py
@@ -87,7 +87,6 @@ The contents in the base class of this methods serve for a very basic usage, and
 
 from .text_input import TextInput
 from .menu import Menu
-from ..general import RequirementError
 from os import system
 from copy import copy
 from typing import Union
@@ -115,11 +114,11 @@ class ListManager:
 		type param: string or list
 		"""
 
-		if not null_action and len(base_list) == 0:
-			raise RequirementError('Data list for ListManager can not be empty if there is no null_action')
+		explainer = str(_('\n Choose an object from the list, and select one of the available actions for it to execute'))
+		self.prompt = prompt + explainer if prompt else explainer
+
+		self.null_action = str(null_action) if null_action else None
 
-		self.prompt = prompt if prompt else _('Choose an object from the list')
-		self.null_action = str(null_action)
 		if not default_action:
 			self.default_action = [self.null_action,]
 		elif isinstance(default_action,(list,tuple)):
@@ -140,7 +139,7 @@ class ListManager:
 		# default values for the null case
 		self.target = None
 		self.action = self.null_action
-		if len(self.data) == 0:
+		if len(self.data) == 0 and self.null_action:
 			self.exec_action()
 
 	def run(self):