create_directories

# File railties/lib/rails_generator/generators/applications/app/app_generator.rb, line 79
    def create_directories(m)
      m.directory ''

      # Intermediate directories are automatically created so don't sweat their absence here.
      %w(
        app/controllers
        app/helpers
        app/models
        app/views/layouts
        config/environments
        config/initializers
        config/locales
        db
        doc
        lib
        lib/tasks
        log
        public/images
        public/javascripts
        public/stylesheets
        script/performance
        test/fixtures
        test/functional
        test/integration
        test/performance
        test/unit
        vendor
        vendor/plugins
        tmp/sessions
        tmp/sockets
        tmp/cache
        tmp/pids
      ).each { |path| m.directory(path) }
    end