Function walk_for_daw 

pub fn walk_for_daw(
    roots: &[PathBuf],
    on_batch: &mut dyn FnMut(&[DawProject], usize),
    should_stop: &(dyn Fn() -> bool + Sync),
    exclude: Option<HashSet<String>>,
    include_backups: bool,
    active_dirs: Option<Arc<Mutex<Vec<String>>>>,
    incremental: Option<Arc<IncrementalDirState>>,
)