//! How to use `clap::Arg::group` use clap::{ArgGroup, Clap}; #[derive(Clap, Debug)] #[clap(group = ArgGroup::with_name("verb").required(true))] struct Opt { /// Set a custom HTTP verb #[clap(long, group = "verb")] method: Option, /// HTTP GET #[clap(long, group = "verb")] get: bool, /// HTTP HEAD #[clap(long, group = "verb")] head: bool, /// HTTP POST #[clap(long, group = "verb")] post: bool, /// HTTP PUT #[clap(long, group = "verb")] put: bool, /// HTTP DELETE #[clap(long, group = "verb")] delete: bool, } fn main() { let opt = Opt::parse(); println!("{:?}", opt); }