clap/examples/derive_ref/augment_subcommands.rs

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use clap::{Command, FromArgMatches as _, Parser, Subcommand as _};
#[derive(Parser, Debug)]
enum Subcommands {
Derived {
#[clap(short, long, action)]
derived_flag: bool,
},
}
fn main() {
let cli = Command::new("Built CLI");
// Augment with derived subcommands
let cli = Subcommands::augment_subcommands(cli);
let matches = cli.get_matches();
let derived_subcommands = Subcommands::from_arg_matches(&matches)
.map_err(|err| err.exit())
.unwrap();
println!("Derived subcommands: {:#?}", derived_subcommands);
}