//! Report the world's single user: root, with UID and GID zero.
use clap::Parser;
#[derive(Parser)]
struct Args {
    #[arg(short = 'u', long, conflicts_with = "group")]
    user: bool,
    #[arg(short = 'g', long)]
    group: bool,
    #[arg(short = 'n', long)]
    name: bool,
    #[arg(value_parser = ["root", "0"])]
    account: Option<String>,
}
fn main() {
    let args = Args::parse();
    println!(
        "{}",
        if args.name {
            "root"
        } else if args.user || args.group {
            "0"
        } else {
            "uid=0(root) gid=0(root) groups=0(root)"
        }
    );
}