1 files changed, 80 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/railtie.rb b/activesupport/lib/active_support/railtie.rb
new file mode 100644
index 0000000000..605b50d346
--- /dev/null
+++ b/activesupport/lib/active_support/railtie.rb
@@ -0,0 +1,80 @@
+# frozen_string_literal: true
+
+require "active_support"
+require "active_support/i18n_railtie"
+
+module ActiveSupport
+  class Railtie < Rails::Railtie # :nodoc:
+    config.active_support = ActiveSupport::OrderedOptions.new
+
+    config.eager_load_namespaces << ActiveSupport
+
+    initializer "active_support.set_authenticated_message_encryption" do |app|
+      config.after_initialize do
+        unless app.config.active_support.use_authenticated_message_encryption.nil?
+          ActiveSupport::MessageEncryptor.use_authenticated_message_encryption =
+            app.config.active_support.use_authenticated_message_encryption
+        end
+      end
+    end
+
+    initializer "active_support.reset_all_current_attributes_instances" do |app|
+      app.reloader.before_class_unload { ActiveSupport::CurrentAttributes.clear_all }
+      app.executor.to_run              { ActiveSupport::CurrentAttributes.reset_all }
+      app.executor.to_complete         { ActiveSupport::CurrentAttributes.reset_all }
+    end
+
+    initializer "active_support.deprecation_behavior" do |app|
+      if deprecation = app.config.active_support.deprecation
+        ActiveSupport::Deprecation.behavior = deprecation
+      end
+    end
+
+    # Sets the default value for Time.zone
+    # If assigned value cannot be matched to a TimeZone, an exception will be raised.
+    initializer "active_support.initialize_time_zone" do |app|
+      begin
+        TZInfo::DataSource.get
+      rescue TZInfo::DataSourceNotFound => e
+        raise e.exception "tzinfo-data is not present. Please add gem 'tzinfo-data' to your Gemfile and run bundle install"
+      end
+      require "active_support/core_ext/time/zones"
+      Time.zone_default = Time.find_zone!(app.config.time_zone)
+    end
+
+    # Sets the default week start
+    # If assigned value is not a valid day symbol (e.g. :sunday, :monday, ...), an exception will be raised.
+    initializer "active_support.initialize_beginning_of_week" do |app|
+      require "active_support/core_ext/date/calculations"
+      beginning_of_week_default = Date.find_beginning_of_week!(app.config.beginning_of_week)
+
+      Date.beginning_of_week_default = beginning_of_week_default
+    end
+
+    initializer "active_support.require_master_key" do |app|
+      if app.config.respond_to?(:require_master_key) && app.config.require_master_key
+        begin
+          app.credentials.key
+        rescue ActiveSupport::EncryptedFile::MissingKeyError => error
+          $stderr.puts error.message
+          exit 1
+        end
+      end
+    end
+
+    initializer "active_support.set_configs" do |app|
+      app.config.active_support.each do |k, v|
+        k = "#{k}="
+        ActiveSupport.send(k, v) if ActiveSupport.respond_to? k
+      end
+    end
+
+    initializer "active_support.set_hash_digest_class" do |app|
+      config.after_initialize do
+        if app.config.active_support.use_sha1_digests
+          ActiveSupport::Digest.hash_digest_class = ::Digest::SHA1
+        end
+      end
+    end
+  end
+end