Is it possible to define parameters in module?

[thedeeno]

Thanks for your work on this project mdub! I really like it. Question: Is it possible to share parameters via modules. I've tried the following but the parameter doesn't appear in the help for my command nor does its attribute get set. What am I missing?

module SharedParameters
  extend Clamp::Parameter::Declaration
  parameter "NAME", "name of thing"
  def thing
     System.get(name).status 
  end
end

class StatusCommand
  include ShareParameters
  def execute
     puts thing
  end 
end

class MainCommand < Clamp::Command
  subcommand "status", "show status of thing", StatusCommand
end

[mdub]

No, it's not possible to include parameter declarations via a module, in the way you'd include options.

You'll have to use a different trick to declare shared parameters, e.g.

Clamp do

  class << self
    def declare_name_parameter
      parameter "NAME", "name of thing"
    end
  end

  subcommand "foo", "Do foo" do
    declare_name_parameter
    def execute
      puts "foo"
    end
  end

end

Another alternative is to declare the parameter before subcommands, if it applies to all of them. This is the approach I prefer, though it does alters the usage:

Clamp do

  parameter "NAME", "name of thing"

  subcommand "foo", "Do foo" do
    def execute
      puts "foo"
    end
  end

end