vendor/bundle/ruby/2.4.0/gems/mercenary-0.3.6/examples/help_dialogue.rb

#!/usr/bin/env ruby

$:.unshift File.join(File.dirname(__FILE__), *%w{ .. lib })

require "mercenary"

# This example sets the logging mode of mercenary to
# debug. Logging messages from "p.logger.debug" will
# be output to STDOUT.

Mercenary.program(:help_dialogue) do |p|

  p.version "2.0.1"
  p.description 'An example of the help dialogue in Mercenary'
  p.syntax 'help_dialogue <subcommand>'

  p.command(:some_subcommand) do |c|
    c.version '1.4.2'
    c.syntax 'some_subcommand <subcommand> [options]'
    c.description 'Some subcommand to do something'
    c.option 'an_option', '-o', '--option', 'Some option'
    c.alias(:blah)

    c.command(:yet_another_sub) do |f|
      f.syntax 'yet_another_sub [options]'
      f.description 'Do amazing things'
      f.option 'blah', '-b', '--blah', 'Trigger blah flag'
      f.option 'heh', '-H ARG', '--heh ARG', 'Give a heh'

      f.action do |args, options|
        print "Args: "
        p args
        print "Opts: "
        p options
      end
    end
  end

  p.command(:another_subcommand) do |c|
    c.syntax 'another_subcommand <subcommand> [options]'
    c.description 'Another subcommand to do something different.'
    c.option 'an_option', '-O', '--option', 'Some option'
    c.option 'another_options', '--pluginzzz', 'Set where the plugins should be found from'
  end

end