Function rewrite_file 

pub fn rewrite_file(
    files: &dyn Files,
    name: &str,
    with: &dyn Rewrite,
) -> Result<bool>

The file name of files through Rewrite::file, written back whole (Files::write_file, atomic) when it changed: whether it did. A file that is not there is left. How a host or a plugin maps a file it keeps from the session outside the session’s store, such as a history of prompts.

Errors

When the file cannot be read or written.