How to make two thor tasks share options?

Question

With Thor one can use method_option to set the options for a particular task. To set the options for all tasks in a class one can use class_option. But what about t

Answer 1

method_option is defined in thor.rb and it takes the following parameters according to the documentation:

• name:: The name of the argument.
• options:: Described below.

Knowing this you can store the parameters to method_option in an array and expand that array into separate parameters as method_option is called.

require 'thor'

class Cli < Thor
  shared_options = [:type, {:type => :string, :required => true, :default => 'foo'}]

  desc 'task1', 'Task 1'
  method_option *shared_options
  def task1
  end

  desc 'task2', 'Task 2'
  method_option *shared_options
  method_option :value, :type => :numeric
  def task2
  end

  desc 'task3', 'Task 3'
  method_option :verbose, :type => :boolean, :aliases => '-v'
  def task3
  end
end

Cli.start(ARGV)

I have no idea if this is idiomatic and I do not think it is that elegant. Still, it is better than violating the DRY principle.