lib/rails/application/bootstrap.rb
# frozen_string_literal: true require "fileutils" require "set" require "active_support/notifications" require "active_support/dependencies" require "active_support/descendants_tracker" require "rails/secrets" module Rails class Application module Bootstrap include Initializable initializer :load_environment_hook, group: :all do end initializer :load_active_support, group: :all do require "active_support/all" unless config.active_support.bare end initializer :set_eager_load, group: :all do if config.eager_load.nil? warn <<~INFO config.eager_load is set to nil. Please update your config/environments/*.rb files accordingly: * development - set it to false * test - set it to false (unless you use a tool that preloads your test environment) * production - set it to true INFO config.eager_load = !config.reloading_enabled? end end # Initialize the logger early in the stack in case we need to log some deprecation. initializer :initialize_logger, group: :all do Rails.logger ||= config.logger || begin logger = if config.log_file_size ActiveSupport::Logger.new(config.default_log_file, 1, config.log_file_size) else ActiveSupport::Logger.new(config.default_log_file) end logger.formatter = config.log_formatter logger = ActiveSupport::TaggedLogging.new(logger) logger rescue StandardError path = config.paths["log"].first logger = ActiveSupport::TaggedLogging.new(ActiveSupport::Logger.new(STDERR)) logger.level = ActiveSupport::Logger::WARN logger.warn( "Rails Error: Unable to access log file. Please ensure that #{path} exists and is writable " \ "(i.e. make it writable for user and group: chmod 0664 #{path}). " \ "The log level has been raised to WARN and the output directed to STDERR until the problem is fixed." ) logger end if Rails.logger.is_a?(ActiveSupport::BroadcastLogger) if config.broadcast_log_level Rails.logger.level = ActiveSupport::Logger.const_get(config.broadcast_log_level.to_s.upcase) end else Rails.logger.level = ActiveSupport::Logger.const_get(config.log_level.to_s.upcase) broadcast_logger = ActiveSupport::BroadcastLogger.new(Rails.logger) broadcast_logger.formatter = Rails.logger.formatter Rails.logger = broadcast_logger end unless config.consider_all_requests_local Rails.error.logger = Rails.logger end end # Initialize cache early in the stack so railties can make use of it. initializer :initialize_cache, group: :all do cache_format_version = config.active_support.delete(:cache_format_version) ActiveSupport.cache_format_version = cache_format_version if cache_format_version unless Rails.cache Rails.cache = ActiveSupport::Cache.lookup_store(*config.cache_store) if Rails.cache.respond_to?(:middleware) config.middleware.insert_before(::Rack::Runtime, Rails.cache.middleware) end end end # We setup the once autoloader this early so that engines and applications # are able to autoload from these paths during initialization. initializer :setup_once_autoloader, after: :set_eager_load_paths, before: :bootstrap_hook do autoloader = Rails.autoloaders.once # Normally empty, but if the user already defined some, we won't # override them. Important if there are custom namespaces associated. already_configured_dirs = Set.new(autoloader.dirs) ActiveSupport::Dependencies.autoload_once_paths.freeze ActiveSupport::Dependencies.autoload_once_paths.uniq.each do |path| # Zeitwerk only accepts existing directories in `push_dir`. next unless File.directory?(path) next if already_configured_dirs.member?(path.to_s) autoloader.push_dir(path) autoloader.do_not_eager_load(path) unless ActiveSupport::Dependencies.eager_load?(path) end autoloader.setup end initializer :bootstrap_hook, group: :all do |app| ActiveSupport.run_load_hooks(:before_initialize, app) end initializer :set_secrets_root, group: :all do Rails::Secrets.root = root end end end end