Module io 

Functions

atomic_write

Atomically replace path with contents.

read_file_capped

Read at most max_bytes from path, rejecting files larger than the cap.

read_to_string_capped

UTF-8 decode a capped file read. Uses [MAX_FILE_BYTES] when max_bytes is not needed elsewhere.

replace_file

Replace path with tmp_path (tmp is consumed). Works on Windows where rename cannot overwrite an existing destination.