| use clap::Command; |
| |
| fn main() { |
| let cmd = Command::new(env!("CARGO_CRATE_NAME")) |
| .multicall(true) |
| .arg_required_else_help(true) |
| .subcommand_value_name("APPLET") |
| .subcommand_help_heading("APPLETS") |
| .subcommand(Command::new("hostname").about("show hostname part of FQDN")) |
| .subcommand(Command::new("dnsdomainname").about("show domain name part of FQDN")); |
| |
| match cmd.get_matches().subcommand_name() { |
| Some("hostname") => println!("www"), |
| Some("dnsdomainname") => println!("example.com"), |
| _ => unreachable!("parser should ensure only valid subcommand names are used"), |
| } |
| } |
