Structopt: Subcommand with multiple "names"

[peperunas]

Hello!

I would like to know if it is possible to add alternatives to invoke the same Subcommand.

Take this for example:

#[derive(StructOpt, Debug)]
pub enum Subcommand {
    #[structopt(name = "action")]
    Action {
        #[structopt(name = "something")]
        something: String,
    }
}

In order to use the subcommand, the user should type ./myapp action. I would like to "shorten" it to ./myapp a or even ./myapp act.

Is it possible to achieve something like this?

Thanks and keep up the awesome work!

[TeXitoi]

An example with all such functionnalities with link to clap documentation: https://github.com/TeXitoi/structopt/blob/master/examples/subcommand_aliases.rs

The resulting binary:

gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases f
error: The subcommand 'f' wasn't recognized

USAGE:
    subcommand_aliases help <subcommands>...

For more information try --help
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases fo
Foo
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases foo
Foo
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases foobar
Foo
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases fi
Bar
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases b
Bar
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases bar
Bar

Does it answer all your questions?

[peperunas]

Absolutely! Thanks!

On Mon, Apr 9, 2018 at 2:16 AM, Guillaume P. [e-mail]
wrote:

An example with all such functionnalities with link to clap documentation:
https://github.com/TeXitoi/structopt/blob/master/
examples/subcommand_aliases.rs

The resulting binary:

gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases f
error: The subcommand 'f' wasn't recognized

USAGE:
subcommand_aliases help ...

For more information try --help
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases fo
Foo
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases foo
Foo
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases foobar
Foo
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases fi
Bar
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases b
Bar
gpinot@gpinot:~/dev/structopt$ ./target/debug/examples/subcommand_aliases bar
Bar

Does it answer all your questions?

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--
- Giulio