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- from __future__ import annotations
- import typing
- from pathlib import PurePosixPath
- from ._errors import DirectoryNotEmpty
- if typing.TYPE_CHECKING:
- from typing import IO
- from ._base import FS
- def remove_empty(fs: FS, path: str):
- """Remove all empty parents."""
- path = PurePosixPath(path)
- root = PurePosixPath("/")
- try:
- while path != root:
- fs.removedir(path.as_posix())
- path = path.parent
- except DirectoryNotEmpty:
- pass
- def copy_file_data(src_file: IO, dst_file: IO, chunk_size: int | None = None):
- """Copy data from one file object to another."""
- _chunk_size = 1024 * 1024 if chunk_size is None else chunk_size
- read = src_file.read
- write = dst_file.write
- # in iter(callable, sentilel), callable is called until it returns the sentinel;
- # this allows to copy `chunk_size` bytes at a time.
- for chunk in iter(lambda: read(_chunk_size) or None, None):
- write(chunk)
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