How to Add Progress Bars to Rust CLIs (indicatif)

Add the indicatif crate to your Cargo.toml, import it, and instantiate a ProgressBar to track iterations.

[dependencies]
indicatif = "0.17"

use indicatif::ProgressBar;

fn main() {
    let pb = ProgressBar::new(100);
    for i in 0..100 {
        // Your work here
        pb.inc(1);
    }
    pb.finish();
}

Adding progress bars to Rust CLIs with indicatif gives users a visual indicator of task duration. It functions like a website loading bar, filling up as your program completes steps. You use it during long processes like file downloads or data processing to reassure users the program hasn't frozen.