vendor/clap/examples/tutorial_derive/03_04_subcommands_alt.rs

   1 use clap::{Args, Parser, Subcommand};
   2
   3 #[derive(Parser)]
   4 #[clap(author, version, about, long_about = None)]
   5 #[clap(propagate_version = true)]
   6 struct Cli {
   7     #[clap(subcommand)]
   8     command: Commands,
   9 }
  10
  11 #[derive(Subcommand)]
  12 enum Commands {
  13     /// Adds files to myapp
  14     Add(Add),
  15 }
  16
  17 #[derive(Args)]
  18 struct Add {
  19     name: Option<String>,
  20 }
  21
  22 fn main() {
  23     let cli = Cli::parse();
  24
  25     // You can check for the existence of subcommands, and if found use their
  26     // matches just as you would the top level cmd
  27     match &cli.command {
  28         Commands::Add(name) => {
  29             println!("'myapp add' was used, name is: {:?}", name.name)
  30         }
  31     }
  32 }