fn main() {

    let p = std::env::args().nth(1).unwrap();

    let t = std::time::Instant::now();

    let m = jet::images::scan_file(std::path::Path::new(&p), None, |_, _| Ok(())).unwrap();

    let zeros: u64 = m.chunks.iter().filter(|c| c.is_zeros()).map(|c| c.1 as u64).sum();

    let need = m.needed();

    let need_bytes: u64 = need.iter().map(|h| m.chunks.iter().find(|c| c.hash() == *h).unwrap().1 as u64).sum();

    let json = serde_json::to_vec(&m).unwrap();

    println!(

        "hash {}… size {} MiB, {} chunks, zeros {} MiB, distinct non-zero {} ({} MiB), manifest {} KiB, {:.1} s",

        &m.hash[..12],

        m.size >> 20,

        m.chunks.len(),

        zeros >> 20,

        need.len(),

        need_bytes >> 20,

        json.len() >> 10,

        t.elapsed().as_secs_f64()

    );

}