WalkDir::new(&config.backup_path)
    .min_depth(1)
    .into_iter()
    .filter_map(|e| e.ok())
    .filter(|e| e.path().is_file())
    .for_each(|e| {
        let remote_path: Vec<String> = e.path()
            .strip_prefix(&config.backup_path)
            .unwrap()
            .iter()
            .map(|e| OsStr::to_string_lossy(e).into_owned())
            .collect();
        let path = e.path().to_path_buf();
        let backup_file = OpenOptions::new()
            .read(true)
            .open(e.path())
            .context(format!(
                "Failed to open file for some reason, path: {}.",
                e.path().display()
            ))
            .unwrap();

        match lookup_file.get(&path) {
            Some(entry) => {
                let hash = hash_file(&backup_file, &hasher).to_vec();

                if entry.hash != hash {
                    nlookup.remove(&path);
                    let nentry = Entry::new(hash, remote_path);
                    nlookup.insert(path, nentry);
                }
            }
            None => {
                let hash = hash_file(&backup_file, &hasher);
                /*
                let entry = Entry::new(
                lookup_file.insert(path, entry);*/
            }
        }