1 files changed, 156 insertions, 0 deletions
diff --git a/railties/lib/rails/bootstrap.rb b/railties/lib/rails/bootstrap.rb
new file mode 100644
index 0000000000..b7cf70747a
--- /dev/null
+++ b/railties/lib/rails/bootstrap.rb
@@ -0,0 +1,156 @@
+module Rails
+  class Bootstrap #< Railtie
+    include Initializable
+
+    def initialize(application)
+      @application = application
+    end
+
+    delegate :config, :root, :to => :'@application'
+
+    initializer :load_all_active_support do
+      require "active_support/all" unless config.active_support.bare
+    end
+
+    # Set the <tt>$LOAD_PATH</tt> based on the value of
+    # Configuration#load_paths. Duplicates are removed.
+    initializer :set_load_path do
+      config.paths.add_to_load_path
+      $LOAD_PATH.uniq!
+    end
+
+    # Set the paths from which Rails will automatically load source files, and
+    # the load_once paths.
+    initializer :set_autoload_paths do
+      require 'active_support/dependencies'
+      ActiveSupport::Dependencies.load_paths = config.load_paths.uniq
+      ActiveSupport::Dependencies.load_once_paths = config.load_once_paths.uniq
+
+      extra = ActiveSupport::Dependencies.load_once_paths - ActiveSupport::Dependencies.load_paths
+      unless extra.empty?
+        abort <<-end_error
+          load_once_paths must be a subset of the load_paths.
+          Extra items in load_once_paths: #{extra * ','}
+        end_error
+      end
+
+      # Freeze the arrays so future modifications will fail rather than do nothing mysteriously
+      config.load_once_paths.freeze
+    end
+
+    # Create tmp directories
+    initializer :ensure_tmp_directories_exist do
+      %w(cache pids sessions sockets).each do |dir_to_make|
+        FileUtils.mkdir_p(File.join(root, 'tmp', dir_to_make))
+      end
+    end
+
+    # Preload all frameworks specified by the Configuration#frameworks.
+    # Used by Passenger to ensure everything's loaded before forking and
+    # to avoid autoload race conditions in JRuby.
+    initializer :preload_frameworks do
+      ActiveSupport::Autoload.eager_autoload! if config.preload_frameworks
+    end
+
+    initializer :initialize_cache do
+      unless defined?(RAILS_CACHE)
+        silence_warnings { Object.const_set "RAILS_CACHE", ActiveSupport::Cache.lookup_store(config.cache_store) }
+
+        if RAILS_CACHE.respond_to?(:middleware)
+          # Insert middleware to setup and teardown local cache for each request
+          config.middleware.insert_after(:"Rack::Lock", RAILS_CACHE.middleware)
+        end
+      end
+    end
+
+    initializer :initialize_logger do
+      Rails.logger ||= config.logger || begin
+        logger = ActiveSupport::BufferedLogger.new(config.log_path)
+        logger.level = ActiveSupport::BufferedLogger.const_get(config.log_level.to_s.upcase)
+        logger.auto_flushing = false if Rails.env.production?
+        logger
+      rescue StandardError => e
+        logger = ActiveSupport::BufferedLogger.new(STDERR)
+        logger.level = ActiveSupport::BufferedLogger::WARN
+        logger.warn(
+          "Rails Error: Unable to access log file. Please ensure that #{config.log_path} exists and is chmod 0666. " +
+          "The log level has been raised to WARN and the output directed to STDERR until the problem is fixed."
+        )
+        logger
+      end
+    end
+
+    # Sets the logger for dependencies and cache store.
+    initializer :initialize_framework_logging do
+      ActiveSupport::Dependencies.logger ||= Rails.logger
+      Rails.cache.logger ||= Rails.logger
+    end
+
+    # Sets the dependency loading mechanism based on the value of
+    # Configuration#cache_classes.
+    initializer :initialize_dependency_mechanism do
+      # TODO: Remove files from the $" and always use require
+      ActiveSupport::Dependencies.mechanism = config.cache_classes ? :require : :load
+    end
+
+    # Loads support for "whiny nil" (noisy warnings when methods are invoked
+    # on +nil+ values) if Configuration#whiny_nils is true.
+    initializer :initialize_whiny_nils do
+      require 'active_support/whiny_nil' if config.whiny_nils
+    end
+
+    # Sets the default value for Time.zone
+    # If assigned value cannot be matched to a TimeZone, an exception will be raised.
+    initializer :initialize_time_zone do
+      require 'active_support/core_ext/time/zones'
+      zone_default = Time.__send__(:get_zone, config.time_zone)
+
+      unless zone_default
+        raise \
+          'Value assigned to config.time_zone not recognized.' +
+          'Run "rake -D time" for a list of tasks for finding appropriate time zone names.'
+      end
+
+      Time.zone_default = zone_default
+    end
+
+    # Set the i18n configuration from config.i18n but special-case for the load_path which should be
+    # appended to what's already set instead of overwritten.
+    initializer :initialize_i18n do
+      require 'active_support/i18n'
+
+      config.i18n.each do |setting, value|
+        if setting == :load_path
+          I18n.load_path += value
+        else
+          I18n.send("#{setting}=", value)
+        end
+      end
+
+      ActionDispatch::Callbacks.to_prepare do
+        I18n.reload!
+      end
+    end
+
+    initializer :set_clear_dependencies_hook do
+      unless config.cache_classes
+        ActionDispatch::Callbacks.after do
+          ActiveSupport::Dependencies.clear
+        end
+      end
+    end
+
+    initializer :initialize_notifications do 
+      require 'active_support/notifications'
+
+      if config.colorize_logging == false
+        Rails::Subscriber.colorize_logging = false
+        config.generators.colorize_logging = false
+      end
+
+      ActiveSupport::Notifications.subscribe do |*args|
+        Rails::Subscriber.dispatch(args)
+      end
+    end
+  end
+end