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Diffstat (limited to 'railties/lib/rails/application/finisher.rb')
-rw-r--r-- | railties/lib/rails/application/finisher.rb | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/railties/lib/rails/application/finisher.rb b/railties/lib/rails/application/finisher.rb new file mode 100644 index 0000000000..404e3c3e23 --- /dev/null +++ b/railties/lib/rails/application/finisher.rb @@ -0,0 +1,122 @@ +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/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::Dependencies.interlock.attempt_unloading do + ActiveSupport::DescendantsTracker.clear + ActiveSupport::Dependencies.clear + end + 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 + + # Disable dependency loading during request cycle + initializer :disable_dependency_loading do + if config.eager_load && config.cache_classes + ActiveSupport::Dependencies.unhook! + end + end + end + end +end |