# -*- coding: utf-8 -*-
"""The APFS path specification implementation."""
from dfvfs.lib import definitions
from dfvfs.path import factory
from dfvfs.path import path_spec
[docs]
class APFSPathSpec(path_spec.PathSpec):
"""APFS path specification implementation.
Attributes:
identifier (int): identifier.
location (str): location.
"""
TYPE_INDICATOR = definitions.TYPE_INDICATOR_APFS
[docs]
def __init__(
self, identifier=None, location=None, parent=None, **kwargs):
"""Initializes a path specification.
Note that an APFS path specification must have a parent.
Args:
identifier (Optional[int]): identifier.
location (Optional[str]): location.
parent (Optional[PathSpec]): parent path specification.
Raises:
ValueError: when parent or both identifier and location are not set.
"""
if (not identifier and not location) or not parent:
raise ValueError('Missing identifier and location, or parent value.')
super(APFSPathSpec, self).__init__(parent=parent, **kwargs)
self.identifier = identifier
self.location = location
@property
def comparable(self):
"""str: comparable representation of the path specification."""
string_parts = []
if self.identifier is not None:
string_parts.append(f'identifier: {self.identifier:d}')
if self.location is not None:
string_parts.append(f'location: {self.location:s}')
return self._GetComparable(sub_comparable_string=', '.join(string_parts))
factory.Factory.RegisterPathSpec(APFSPathSpec)