Cookbook CLI creator

create-cookbook.rb

#!/usr/bin/env ruby
require 'optparse'
require 'ostruct'

class CookbookCreator
  COMPANY_NAME  = 'COMPANY_NAME'
  EMAIL         = '[email protected]'
  COOKBOOK_NAME = 'COOKBOOK_NAME'

  class << self
    def parse(args)
      parse_args(args).tap do |options|
        create_cookbook(options.name, options.email, options.company)
      end
    end

    private
    def option_parser(options)
      OptionParser.new do |opts|
        opts.banner = 'Usage: create-cookbook.rb [options]'
        opts.separator ''
        opts.separator 'Specific options:'

        opts.on('-n', '--name    Cookbook name') { |name|    options.name    = name    }
        opts.on('-c', '--company Company name')  { |company| options.company = company }
        opts.on('-e', '--email   Creator email') { |email|   options.email   = email   }
      end
    end

    def parse_args(args)
      default_options.tap { |options| option_parser(options).parse! args }
    end

    def default_options
      OpenStruct.new(
        company: COMPANY_NAME,
        email:   EMAIL,
        name:    COOKBOOK_NAME
      )
    end

    def create_cookbook(name, email, company)
      %x(knife cookbook create #{name} -o site-cookbooks -m #{email} -C #{company})
    end
  end
end

CookbookCreator.parse(ARGV)

➜ chmod +x create-cookbook.rb
➜ ./create-cookbook.rb -h

Usage: create-cookbook.rb [options]

Specific options:
    -n, --name    Cookbook name
    -c, --company Company name
    -e, --email   Creator email