"""The Apple Partition Map (APM) path specification implementation."""
from dfvfs.lib import definitions
from dfvfs.path import factory
from dfvfs.path import path_spec
[docs]
class APMPathSpec(path_spec.PathSpec):
"""APM path specification.
Attributes:
entry_index (int): partition entry index.
location (str): location.
"""
TYPE_INDICATOR = definitions.TYPE_INDICATOR_APM
[docs]
def __init__(self, location=None, entry_index=None, parent=None, **kwargs):
"""Initializes a path specification.
Note that the APM path specification must have a parent.
Args:
entry_index (Optional[int]): partition entry index.
location (Optional[str]): location.
parent (Optional[PathSpec]): parent path specification.
Raises:
ValueError: when parent is not set.
"""
if not parent:
raise ValueError("Missing parent value.")
super().__init__(parent=parent, **kwargs)
self.entry_index = entry_index
self.location = location
@property
def comparable(self):
"""str: comparable representation of the path specification."""
string_parts = []
if self.entry_index is not None:
string_parts.append(f"entry index: {self.entry_index: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(APMPathSpec)