vendor/indicatif/examples/download.rs

use std::thread;
use std::time::Duration;
use std::{cmp::min, fmt::Write};

use indicatif::{ProgressBar, ProgressState, ProgressStyle};

fn main() {
    let mut downloaded = 0;
    let total_size = 231231231;

    let pb = ProgressBar::new(total_size);
    pb.set_style(ProgressStyle::with_template("{spinner:.green} [{elapsed_precise}] [{wide_bar:.cyan/blue}] {bytes}/{total_bytes} ({eta})")
        .unwrap()
        .with_key("eta", |state: &ProgressState, w: &mut dyn Write| write!(w, "{:.1}s", state.eta().as_secs_f64()).unwrap())
        .progress_chars("#>-"));

    while downloaded < total_size {
        let new = min(downloaded + 223211, total_size);
        downloaded = new;
        pb.set_position(new);
        thread::sleep(Duration::from_millis(12));
    }

    pb.finish_with_message("downloaded");
}