Add Configuration#auto_register which is the actual public API

Author: solnic

lib/rom/compat.rb

@@ -1,3 +1,9 @@
 # frozen_string_literal: true
 
 require_relative "compat/setup"
+
+module ROM
+  class Configuration
+    def_delegators :@setup, :auto_registration
+  end
+end

lib/rom/configuration.rb

@@ -47,7 +47,7 @@ class Configuration
     attr_reader :relations
 
     def_delegators :@setup, :register_relation, :register_command,
-                   :register_mapper, :register_plugin, :auto_registration,
+                   :register_mapper, :register_plugin, :auto_register,
                    :inflector, :inflector=, :components, :plugins
 
     def_delegators :@environment, :gateways, :gateways_map, :configure, :config

lib/rom/setup.rb

@@ -6,7 +6,7 @@
 module ROM
   # Setup objects collect component classes during setup/finalization process
   #
-  # @api public
+  # @api private
   class Setup
     # @api private
     attr_reader :plugins

spec/unit/rom/setup/auto_register_spec.rb

@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
-require "rom/setup"
+require "rom/configuration"
 require "rom/transformer"
 
-RSpec.describe ROM::Setup, "#auto_register" do
-  subject(:setup) { ROM::Setup.new }
+RSpec.describe ROM::Configuration, "#auto_register" do
+  subject(:setup) { ROM::Configuration.new }
 
   around do |example|
     example.run