$ 03_04_subcommands_derive help clap [..] A simple to use, efficient, and full-featured Command Line Argument Parser USAGE: 03_04_subcommands_derive[EXE] <SUBCOMMAND> OPTIONS: -h, --help Print help information -V, --version Print version information SUBCOMMANDS: add Adds files to myapp help Print this message or the help of the given subcommand(s) $ 03_04_subcommands_derive help add 03_04_subcommands_derive[EXE]-add [..] Adds files to myapp USAGE: 03_04_subcommands_derive[EXE] add [NAME] ARGS: <NAME> OPTIONS: -h, --help Print help information -V, --version Print version information $ 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 clap [..] A simple to use, efficient, and full-featured Command Line Argument Parser USAGE: 03_04_subcommands_derive[EXE] <SUBCOMMAND> OPTIONS: -h, --help Print help information -V, --version Print version information SUBCOMMANDS: add Adds files to myapp help Print this message or the help of the given subcommand(s)
Because we added #[clap(propagate_version = true)]
:
$ 03_04_subcommands_derive --version clap [..] $ 03_04_subcommands_derive add --version 03_04_subcommands_derive[EXE]-add [..]