Mirrors/clap
2
0
Fork 0
mirror of https://github.com/clap-rs/clap synced 2025-03-04 15:27:16 +00:00
Code Issues Projects Releases Packages Wiki Activity
clap/examples/tutorial_derive/03_04_subcommands.md
Ed Page e1aafce431 test(tutorial): Ensure we actually test code 
Biggest problem identified is that we are incorrectly setting the help
usage in `04_04_custom`
2022-08-08 14:05:08 -05:00

1.4 KiB
Raw Blame History 

$ 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
clap-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
clap-add [..]