$ 03_04_subcommands_derive help A simple to use, efficient, and full-featured Command Line Argument Parser Usage: 03_04_subcommands_derive[EXE] <COMMAND> Commands: add Adds files to myapp help Print this message or the help of the given subcommand(s) Options: -h, --help Print help -V, --version Print version $ 03_04_subcommands_derive help add Adds files to myapp Usage: 03_04_subcommands_derive[EXE] add [NAME] Arguments: [NAME] Options: -h, --help Print help -V, --version Print version $ 03_04_subcommands_derive add bob 'myapp add' was used, name is: Some("bob")
Because we used command: Commands
instead of command: Option<Commands>
:
$ 03_04_subcommands_derive ? failed A simple to use, efficient, and full-featured Command Line Argument Parser Usage: 03_04_subcommands_derive[EXE] <COMMAND> Commands: add Adds files to myapp help Print this message or the help of the given subcommand(s) Options: -h, --help Print help -V, --version Print version
Because we added #[command(propagate_version = true)]
:
$ 03_04_subcommands_derive --version clap [..] $ 03_04_subcommands_derive add --version clap-add [..]