Intermediate changes

commit_hash:60aaacde4a6a0fb68b6435d7f100365d0c77d64d

1 files changed, 34 insertions, 0 deletions

diff --git a/contrib/python/fonttools/fontTools/misc/filesystem/_tools.py b/contrib/python/fonttools/fontTools/misc/filesystem/_tools.py
new file mode 100644
index 00000000000..4b02ac0d253
--- /dev/null
+++ b/contrib/python/fonttools/fontTools/misc/filesystem/_tools.py
@@ -0,0 +1,34 @@
+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)