structopt.rs

use structopt::StructOpt;

#[derive(StructOpt, PartialEq, Eq, Debug)]
enum Opt {
    /// Fetch stuff from GitHub
    Fetch {
        #[structopt(short, long)]
        /// Fetch all the repository contents
        all: bool,

        #[structopt(short, long)]
        /// Overwrite local branches.
        force: bool,

        repo: String,
    },

    /// Add new changes to the repository
    Add {
        #[structopt(short, long)]
        /// Interactive mode.
        interactive: bool,

        #[structopt(short, long)]
        /// Verbose mode.
        verbose: bool,
    },
}

fn main() {
    let opt = Opt::from_args();
    println!("{:?}", opt);
}

// source: https://github.com/TeXitoi/structopt/blob/master/tests/subcommands.rs