How to handle a list of arguments?

[blysik]

Hi,

I would like to write a CLI tool with an interface like this:

myapp hostname1 hostname2 hostname3

I can do it if I comma separate the values, but I'd really like using spaces. Is this supported somehow? Thanks!

[davetron5000]

yup:

main do |*args|
  args.each do |hostname|
    puts hostname
  end
end

arg :hosts, :any, "Hosts to whatever"

It looks at the argument list for the block given to main and passes only those in, so if you did this:

main do |arg1,arg2|
end

It would set arg1 to hostname and arg2 to hostname2, but throw away hostname3.

So, it's kinda optimized for a fixed-size argument list, but if you use the splat (*args), it matches everything.

[blysik]

Worked perfectly, thanks! Closing out.