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from typing import Dict, List, Optional, Any, TYPE_CHECKING
from ..menu.list_manager import ListManager
from ..menu.menu import MenuSelectionType
from ..menu.text_input import TextInput
from ..menu import Menu
from ..models.subvolume import Subvolume
if TYPE_CHECKING:
_: Any
class SubvolumeList(ListManager):
def __init__(self, prompt: str, current_volumes: List[Subvolume]):
self._actions = [
str(_('Add subvolume')),
str(_('Edit subvolume')),
str(_('Delete subvolume'))
]
super().__init__(prompt, current_volumes, self._actions, self._actions[0])
def reformat(self, data: List[Subvolume]) -> Dict[str, Subvolume]:
return {e.display(): e for e in data}
def action_list(self):
active_user = self.target if self.target else None
if active_user is None:
return [self._actions[0]]
else:
return self._actions[1:]
def _prompt_options(self, editing: Optional[Subvolume] = None) -> List[str]:
preset_options = []
if editing:
preset_options = editing.options
choice = Menu(
str(_("Select the desired subvolume options ")),
['nodatacow','compress'],
skip=True,
preset_values=preset_options,
multi=True
).run()
if choice.type_ == MenuSelectionType.Selection:
return choice.value # type: ignore
return []
def _add_subvolume(self, editing: Optional[Subvolume] = None) -> Optional[Subvolume]:
name = TextInput(f'\n\n{_("Subvolume name")}: ', editing.name if editing else '').run()
if not name:
return None
mountpoint = TextInput(f'\n{_("Subvolume mountpoint")}: ', editing.mountpoint if editing else '').run()
if not mountpoint:
return None
options = self._prompt_options(editing)
subvolume = Subvolume(name, mountpoint)
subvolume.compress = 'compress' in options
subvolume.nodatacow = 'nodatacow' in options
return subvolume
def exec_action(self, data: List[Subvolume]) -> List[Subvolume]:
if self.target:
active_subvolume = self.target
else:
active_subvolume = None
if self.action == self._actions[0]: # add
new_subvolume = self._add_subvolume()
if new_subvolume is not None:
# in case a user with the same username as an existing user
# was created we'll replace the existing one
data = [d for d in data if d.name != new_subvolume.name]
data += [new_subvolume]
elif self.action == self._actions[1]: # edit subvolume
new_subvolume = self._add_subvolume(active_subvolume)
if new_subvolume is not None:
# we'll remove the original subvolume and add the modified version
data = [d for d in data if d.name != active_subvolume.name and d.name != new_subvolume.name]
data += [new_subvolume]
elif self.action == self._actions[2]: # delete
data = [d for d in data if d != active_subvolume]
return data
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