1

I want my command to work like this:

mytool --ios          # do iOS
mytool --macos.   # do macOS
mytool                  # must choose either --ios or --macos

I think this can be done with:

enum OSType: ExpressibleByArgument {
  case ios, macos

  init?(argument: String) {
    if "ios" == argument {
      self = .ios
    } else if "macos" == argument {
      self = .macos
    } else {
      return nil
    }
  }
}

// ... the in my command:

    @Argument(help: "Enter either --ios or --macOS (<== this doesn't work, how to enter?")
    var ostype: OSType

Am I doing the correctly? And how to use my Argument?

2

You are implementing this correctly, but you're trying to pass it in as an option, not an argument. To run this from the command line, you want:

mytool ios # do iOS
mytool macos #do macOS
1 Like
3

:+1::pray:

very nice! It worked.