nested_lib_loader.rb

# DESCRIPTION:
#   For auto lazy loading of namespaced objects nested in sub-directories
#   This is a custom library loader - Written by Peter Boling
# INSTALLATION:
#   1. Add 'gist-dep' to your Gemfile
#   2. bundle install
#   3. gist-dep add --path lib/handy_gists/nested_lib_loader.rb 6265104/nested_lib_loader.rb
#   4. add the following lines (uncommented) to your config/application.rb inside the `class Application < Rails::Application`
#    require "#{config.root}/lib/handy_gists/nested_lib_loader"
#    include HandyGists::NestedLibLoader
# REMOVAL:
#   1. gist-dep remove 6265104/nested_lib_loader.rb
# USAGE:
#    # Custom directories with classes and modules you want to be autoloadable.
#    # Load Middleware
#    nested_app_libs('middleware/stuff', true)
#    # Load Extensions to Standard Ruby/Rails libs
#    nested_libs('lib/ext', true)
#    # Load the lib stuff as these are lower level than app code
#    %w( lib ).each do |lib_dir|
#      config.autoload_paths += nested_libs(lib_dir, false)
#    end
#    # For auto lazy loading of namespaced objects nested in sub-directories
#    %w( railties classes models modules presenters workers ).each do |lib_dir|
#      config.autoload_paths += nested_app_libs(lib_dir, false)
#    end
#

module HandyGists
  module NestedLibLoader
    # Used to load nested libraries
    def nested_libs(dir, do_require = false)
      Dir["#{dir}/**/*"].select do |x|
        !File.directory?(x) && x.to_s =~ /\.rb/
      end.map do |x|
        library = "#{config.root}/#{x}"
        if do_require
          require library
        else
          library
        end
      end
    end

    #  nested directory structures inside app/
    def nested_app_libs(dir, require = false)
      nested_libs("app/#{dir}", require)
    end
  end
end