# -*- coding: utf-8 -*-
"""The gzip file system implementation."""
from dfvfs.lib import definitions
from dfvfs.path import gzip_path_spec
from dfvfs.vfs import gzip_file_entry
from dfvfs.vfs import root_only_file_system
[docs]
class GzipFileSystem(root_only_file_system.RootOnlyFileSystem):
"""File system that uses gzip."""
TYPE_INDICATOR = definitions.TYPE_INDICATOR_GZIP
[docs]
def GetFileEntryByPathSpec(self, path_spec):
"""Retrieves a file entry for a path specification.
Args:
path_spec (PathSpec): path specification.
Returns:
GzipFileEntry: a file entry or None if not available.
"""
return gzip_file_entry.GzipFileEntry(
self._resolver_context, self, path_spec, is_root=True, is_virtual=True)
[docs]
def GetRootFileEntry(self):
"""Retrieves the root file entry.
Returns:
GzipFileEntry: a file entry or None if not available.
"""
path_spec = gzip_path_spec.GzipPathSpec(parent=self._path_spec.parent)
return self.GetFileEntryByPathSpec(path_spec)