module Rails class Application module Finisher include Initializable initializer :add_generator_templates do config.generators.templates.unshift(*paths["lib/templates"].existent) end initializer :ensure_autoload_once_paths_as_subset do extra = ActiveSupport::Dependencies.autoload_once_paths - ActiveSupport::Dependencies.autoload_paths unless extra.empty? abort <<-end_error autoload_once_paths must be a subset of the autoload_paths. Extra items in autoload_once_paths: #{extra * ','} end_error end end initializer :add_builtin_route do |app| if Rails.env.development? app.routes.append do get '/rails/mailers' => "rails/mailers#index" get '/rails/mailers/*path' => "rails/mailers#preview" get '/rails/info/properties' => "rails/info#properties" get '/rails/info/routes' => "rails/info#routes" get '/rails/info' => "rails/info#index" get '/' => "rails/welcome#index" end end end initializer :build_middleware_stack do build_middleware_stack end initializer :define_main_app_helper do |app| app.routes.define_mounted_helper(:main_app) end initializer :add_to_prepare_blocks do config.to_prepare_blocks.each do |block| ActionDispatch::Reloader.to_prepare(&block) end end # This needs to happen before eager load so it happens # in exactly the same point regardless of config.cache_classes initializer :run_prepare_callbacks do ActionDispatch::Reloader.prepare! end initializer :eager_load! do if config.eager_load ActiveSupport.run_load_hooks(:before_eager_load, self) config.eager_load_namespaces.each(&:eager_load!) end end # All initialization is done, including eager loading in production initializer :finisher_hook do ActiveSupport.run_load_hooks(:after_initialize, self) end # Set routes reload after the finisher hook to ensure routes added in # the hook are taken into account. initializer :set_routes_reloader_hook do reloader = routes_reloader reloader.execute_if_updated self.reloaders << reloader ActionDispatch::Reloader.to_prepare do # We configure #execute rather than #execute_if_updated because if # autoloaded constants are cleared we need to reload routes also in # case any was used there, as in # # mount MailPreview => 'mail_view' # # This means routes are also reloaded if i18n is updated, which # might not be necessary, but in order to be more precise we need # some sort of reloaders dependency support, to be added. reloader.execute end end # Set clearing dependencies after the finisher hook to ensure paths # added in the hook are taken into account. initializer :set_clear_dependencies_hook, group: :all do callback = lambda do ActiveSupport::DescendantsTracker.clear ActiveSupport::Dependencies.clear end if config.reload_classes_only_on_change reloader = config.file_watcher.new(*watchable_args, &callback) self.reloaders << reloader # Prepend this callback to have autoloaded constants cleared before # any other possible reloading, in case they need to autoload fresh # constants. ActionDispatch::Reloader.to_prepare(prepend: true) do # In addition to changes detected by the file watcher, if routes # or i18n have been updated we also need to clear constants, # that's why we run #execute rather than #execute_if_updated, this # callback has to clear autoloaded constants after any update. reloader.execute end else ActionDispatch::Reloader.to_cleanup(&callback) end end end end end