Load all modules within a namespaced directory

base.rb

module Utils::All
  # I wrote this originally for model concerns, in which case I needed
  # the following line to be included:
  # extend ActiveSupport::Concern

  Dir.glob(File.expand_path('../', __FILE__) + '/*.rb').each do |util|
    next if File.basename(util) == 'base.rb'
    include "Utils::#{File.basename(util, '.rb').camelize}".constantize
  end
end