Prefer require_relative for internal requires

`require_relative` is preferred over `require` for files within the same
project because it uses paths relative to the current file, making code
more portable and less dependent on the load path.

This change updates internal requires to use `require_relative` for
consistency, performance, and improved portability.

Ref:
- rubocop/rubocop#8748

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## main / unreleased
 
 * [ENHANCEMENT] Update QUnit to 2.22.0
+* [ENHANCEMENT] Prefer `require_relative` for internal requires
 
 ## 22.2.0 / 2026-06-01
 

lib/client_side_validations.rb

@@ -1,11 +1,11 @@
 # frozen_string_literal: true
 
-require 'client_side_validations/config'
-require 'client_side_validations/active_model'  if defined?(ActiveModel)
-require 'client_side_validations/active_record' if defined?(ActiveRecord)
-require 'client_side_validations/action_view'   if defined?(ActionView)
+require_relative 'client_side_validations/config'
+require_relative 'client_side_validations/active_model'  if defined?(ActiveModel)
+require_relative 'client_side_validations/active_record' if defined?(ActiveRecord)
+require_relative 'client_side_validations/action_view'   if defined?(ActionView)
 
 if defined?(Rails)
-  require 'client_side_validations/engine'
-  require 'client_side_validations/generators'
+  require_relative 'client_side_validations/engine'
+  require_relative 'client_side_validations/generators'
 end

lib/client_side_validations/action_view.rb

@@ -7,14 +7,14 @@ module Helpers
   end
 end
 
-require 'client_side_validations/core_ext'
-require 'client_side_validations/action_view/form_helper'
+require_relative 'core_ext'
+require_relative 'action_view/form_helper'
 
 if ActionView::Helpers::FormHelper.method_defined?(:form_with)
-  require 'client_side_validations/action_view/form_with_helper'
+  require_relative 'action_view/form_with_helper'
 end
 
-require 'client_side_validations/action_view/form_builder'
+require_relative 'action_view/form_builder'
 
 ActiveSupport.on_load(:action_view) { include ClientSideValidations::ActionView::Helpers::FormHelper }
 ActionView::Helpers::FormBuilder.prepend ClientSideValidations::ActionView::Helpers::FormBuilder

lib/client_side_validations/active_model.rb

@@ -1,8 +1,8 @@
 # frozen_string_literal: true
 
-require 'client_side_validations/core_ext'
-require 'client_side_validations/extender'
-require 'client_side_validations/active_model/conditionals'
+require_relative 'core_ext'
+require_relative 'extender'
+require_relative 'active_model/conditionals'
 
 module ClientSideValidations
   module ActiveModel

lib/client_side_validations/active_record.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
-require 'client_side_validations/active_model'
-require 'client_side_validations/extender'
+require_relative 'active_model'
 
 ActiveSupport.on_load(:active_record) { include ClientSideValidations::ActiveModel::Validations }
 

lib/client_side_validations/core_ext.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
 require 'active_support/json'
-require 'client_side_validations/core_ext/range'
-require 'client_side_validations/core_ext/regexp'
+
+require_relative 'core_ext/range'
+require_relative 'core_ext/regexp'

lib/client_side_validations/generators.rb

@@ -14,4 +14,4 @@ def self.assets
   end
 end
 
-require 'client_side_validations/generators/rails_validations'
+require_relative 'generators/rails_validations'