Rename manual registrar to manifest registrar

This will allow us to reserve the term "manual registration" for any instance of a user directly calling `#register` on the container.

lib/dry/system/container.rb

@@ -18,7 +18,7 @@
 require "dry/system/identifier"
 require "dry/system/importer"
 require "dry/system/indirect_component"
-require "dry/system/manual_registrar"
+require "dry/system/manifest_registrar"
 require "dry/system/plugins"
 require "dry/system/provider_registrar"
 require "dry/system/provider"
@@ -81,11 +81,11 @@ class Container
       setting :root, default: Pathname.pwd.freeze, constructor: -> path { Pathname(path) }
       setting :provider_dirs, default: ["system/providers"]
       setting :bootable_dirs # Deprecated for provider_dirs, see .provider_paths below
-      setting :registrations_dir, default: "container"
+      setting :registrations_dir, default: "system/registrations"
       setting :component_dirs, default: Config::ComponentDirs.new, cloneable: true
       setting :inflector, default: Dry::Inflector.new
       setting :auto_registrar, default: Dry::System::AutoRegistrar
-      setting :manual_registrar, default: Dry::System::ManualRegistrar
+      setting :manifest_registrar, default: Dry::System::ManifestRegistrar
       setting :provider_registrar, default: Dry::System::ProviderRegistrar
       setting :importer, default: Dry::System::Importer
 
@@ -321,7 +321,7 @@ def finalize!(freeze: true, &block)
 
           importer.finalize!
           providers.finalize!
-          manual_registrar.finalize!
+          manifest_registrar.finalize!
           auto_registrar.finalize!
 
           @__finalized__ = true
@@ -412,7 +412,7 @@ def add_to_load_path!(*dirs)
 
         # @api public
         def load_registrations!(name)
-          manual_registrar.(name)
+          manifest_registrar.(name)
           self
         end
 
@@ -563,8 +563,8 @@ def auto_registrar
         end
 
         # @api private
-        def manual_registrar
-          @manual_registrar ||= config.manual_registrar.new(self)
+        def manifest_registrar
+          @manifest_registrar ||= config.manifest_registrar.new(self)
         end
 
         # @api private
@@ -616,8 +616,8 @@ def load_component(key)
 
           if component.loadable?
             load_local_component(component)
-          elsif manual_registrar.file_exists?(component)
-            manual_registrar.(component)
+          elsif manifest_registrar.file_exists?(component)
+            manifest_registrar.(component)
           elsif importer.key?(component.identifier.root_key)
             load_imported_component(component.identifier)
           end
@@ -646,8 +646,8 @@ def load_imported_component(identifier)
         def find_component(key)
           # Find the first matching component from within the configured component dirs.
           # If no matching component is found, return a null component; this fallback is
-          # important because the component may still be loadable via the manual registrar
-          # or an imported container.
+          # important because the component may still be loadable via the manifest
+          # registrar or an imported container.
           component_dirs.detect { |dir|
             if (component = dir.component_for_key(key))
               break component

lib/dry/system/indirect_component.rb

@@ -6,7 +6,7 @@ module Dry
   module System
     # An indirect component is a component that cannot be directly from a source file
     # directly managed by the container. It may be component that needs to be loaded
-    # indirectly, either via a manual registration file or an imported container
+    # indirectly, either via a registration manifest file or an imported container
     #
     # Indirect components are an internal abstraction and, unlike ordinary components, are
     # not exposed to users via component dir configuration hooks.

lib/dry/system/manual_registrar.rb → lib/dry/system/manifest_registrar.rb

@@ -4,19 +4,21 @@
 
 module Dry
   module System
-    # Default manual registration implementation
+    # Default manifest registration implementation
     #
-    # This is currently configured by default for every System::Container.
-    # Manual registrar objects are responsible for loading files from configured
-    # manual registration paths, which should hold code to explicitly register
+    # This is configured by default for every System::Container. The manifest registrar is
+    # responsible for loading manifest files that contain code to manually register
     # certain objects with the container.
     #
     # @api private
-    class ManualRegistrar
+    class ManifestRegistrar
+      # @api private
       attr_reader :container
 
+      # @api private
       attr_reader :config
 
+      # @api private
       def initialize(container)
         @container = container
         @config = container.config
@@ -34,6 +36,7 @@ def call(component)
         require(root.join(config.registrations_dir, component.root_key.to_s))
       end
 
+      # @api private
       def file_exists?(component)
         File.exist?(File.join(registrations_dir, "#{component.root_key}#{RB_EXT}"))
       end

spec/integration/container/lazy_loading/manual_registration_spec.rb → spec/integration/container/lazy_loading/manifest_registration_spec.rb

@@ -1,19 +1,19 @@
 # frozen_string_literal: true
 
-RSpec.describe "Lazy-loading manual registration files" do
+RSpec.describe "Lazy-loading registration manifest files" do
   before do
     module Test
       class Container < Dry::System::Container
         configure do |config|
-          config.root = SPEC_ROOT.join("fixtures/manual_registration").realpath
+          config.root = SPEC_ROOT.join("fixtures/manifest_registration").realpath
         end
 
         add_to_load_path!("lib")
       end
     end
   end
 
-  it "loads a manual registration file if the component could not be found" do
+  it "loads a registration manifest file if the component could not be found" do
     expect(Test::Container["foo.special"]).to be_a(Test::Foo)
     expect(Test::Container["foo.special"].name).to eq "special"
   end