structopt

main.rs

#[macro_use]
extern crate structopt;

use std::path::PathBuf;

use structopt::StructOpt;

// env!("CARGO_PKG_NAME")

#[derive(Debug, StructOpt)]
#[structopt(name = "example", about = "Something something dark side")]
enum Opt {
    #[structopt(name = "info")]
    Info {
        #[structopt(long = "dry-run")]
        dry_run: bool,
        #[structopt(long = "all")]
        all: bool,
        repository: Option<String>,
    },
    #[structopt(name = "warn")]
    Warn {
        #[structopt(short = "a")]
        all: bool,
    },
}

fn main() {
    let opt: Opt = Opt::from_args();

    match opt.command {
        Opt::Info => {
            println!("Info")
        }
        _ => println!("{:?}", opt)
    }
}