class Rails::Engine::Configuration

def autoload_once_paths
  @autoload_once_paths ||= paths.autoload_once
end

def autoload_paths
  @autoload_paths ||= paths.autoload_paths
end

def eager_load_paths
  @eager_load_paths ||= paths.eager_load
end

def generators
  @generators ||= Rails::Configuration::Generators.new
  yield(@generators) if block_given?
  @generators
end

def initialize(root = nil)
  super()
  @root = root
  @generators = app_generators.dup
  @middleware = Rails::Configuration::MiddlewareStackProxy.new
  @javascript_path = "javascript"
end

def paths
  @paths ||= begin
    paths = Rails::Paths::Root.new(@root)
    paths.add "app",                 eager_load: true,
                                     glob: "{*,*/concerns}",
                                     exclude: ["assets", javascript_path]
    paths.add "app/assets",          glob: "*"
    paths.add "app/controllers",     eager_load: true
    paths.add "app/channels",        eager_load: true
    paths.add "app/helpers",         eager_load: true
    paths.add "app/models",          eager_load: true
    paths.add "app/mailers",         eager_load: true
    paths.add "app/views"
    paths.add "lib",                 load_path: true
    paths.add "lib/assets",          glob: "*"
    paths.add "lib/tasks",           glob: "**/*.rake"
    paths.add "config"
    paths.add "config/environments", glob: -"#{Rails.env}.rb"
    paths.add "config/initializers", glob: "**/*.rb"
    paths.add "config/locales",      glob: "**/*.{rb,yml}"
    paths.add "config/routes.rb"
    paths.add "config/routes",       glob: "**/*.rb"
    paths.add "db"
    paths.add "db/migrate"
    paths.add "db/seeds.rb"
    paths.add "vendor",              load_path: true
    paths.add "vendor/assets",       glob: "*"
    paths
  end
end

def root=(value)
  @root = paths.path = Pathname.new(value).expand_path
end