gistfile1.rb

require 'yaml'
require 'recursive-open-struct'

# Read app.yml, users.yml and vendor.yml
%w(app users vendor).each do |name|                                                                 
  config = YAML.load_file("#{Rails.root}/config/#{name}.yml") || {}
  struct = RecursiveOpenStruct.new(config, recurse_over_arrays: true)
  Kernel.const_set("#{name}_config".camelize, struct)
end

# AppConfig, UsersConfig, VendorConfig, etc. now hold the configuration.