"""The EXT directory implementation."""
from dfvfs.path import ext_path_spec
from dfvfs.vfs import directory
[docs]
class EXTDirectory(directory.Directory):
"""File system directory that uses pyfsext."""
[docs]
def __init__(self, file_system, path_spec, fsext_file_entry):
"""Initializes a directory.
Args:
file_system (FileSystem): file system.
path_spec (PathSpec): path specification.
fsext_file_entry (pyfsext.file_entry): EXT file entry.
"""
super().__init__(file_system, path_spec)
self._fsext_file_entry = fsext_file_entry
def _EntriesGenerator(self):
"""Retrieves directory entries.
Since a directory can contain a vast number of entries using
a generator is more memory efficient.
Yields:
EXTPathSpec: EXT path specification.
"""
location = getattr(self.path_spec, "location", None)
for fsext_sub_file_entry in self._fsext_file_entry.sub_file_entries:
directory_entry = fsext_sub_file_entry.name
if not location or location == self._file_system.PATH_SEPARATOR:
directory_entry = self._file_system.JoinPath([directory_entry])
else:
directory_entry = self._file_system.JoinPath(
[location, directory_entry]
)
yield ext_path_spec.EXTPathSpec(
inode=fsext_sub_file_entry.inode_number,
location=directory_entry,
parent=self.path_spec.parent,
)