Function grin_store::save_via_temp_file

pub fn save_via_temp_file<F, P, E>(
    path: P,
    temp_suffix: E,
    writer: F
) -> Result<(), Error>
where
    F: FnMut(&mut File) -> Result<(), Error>,
    P: AsRef<Path>,
    E: AsRef<OsStr>,

Creates temporary file with name created by adding temp_suffix to path. Applies writer function to it and renames temporary file into original specified by path.