1 files changed, 55 insertions, 0 deletions
diff --git a/actioncable/lib/action_cable/engine.rb b/actioncable/lib/action_cable/engine.rb
new file mode 100644
index 0000000000..ae0c59dccd
--- /dev/null
+++ b/actioncable/lib/action_cable/engine.rb
@@ -0,0 +1,55 @@
+require "rails"
+require "action_cable"
+require "action_cable/helpers/action_cable_helper"
+require "active_support/core_ext/hash/indifferent_access"
+
+module ActionCable
+  class Railtie < Rails::Engine # :nodoc:
+    config.action_cable = ActiveSupport::OrderedOptions.new
+    config.action_cable.mount_path = '/cable'
+
+    config.eager_load_namespaces << ActionCable
+
+    initializer "action_cable.helpers" do
+      ActiveSupport.on_load(:action_view) do
+        include ActionCable::Helpers::ActionCableHelper
+      end
+    end
+
+    initializer "action_cable.logger" do
+      ActiveSupport.on_load(:action_cable) { self.logger ||= ::Rails.logger }
+    end
+
+    initializer "action_cable.set_configs" do |app|
+      options = app.config.action_cable
+      options.allowed_request_origins ||= "http://localhost:3000" if ::Rails.env.development?
+
+      app.paths.add "config/cable", with: "config/cable.yml"
+
+      ActiveSupport.on_load(:action_cable) do
+        if (config_path = Pathname.new(app.config.paths["config/cable"].first)).exist?
+          self.cable = Rails.application.config_for(config_path).with_indifferent_access
+        end
+
+        if 'ApplicationCable::Connection'.safe_constantize
+          self.connection_class = ApplicationCable::Connection
+        end
+
+        self.channel_paths = Rails.application.paths['app/channels'].existent
+
+        options.each { |k,v| send("#{k}=", v) }
+      end
+    end
+
+    initializer "action_cable.routes" do
+      config.after_initialize do |app|
+        config = app.config
+        unless config.action_cable.mount_path.nil?
+          app.routes.prepend do
+            mount ActionCable.server => config.action_cable.mount_path, internal: true
+          end
+        end
+      end
+    end
+  end
+end