Update RuboCop to 1.81.7 and fix style offenses (#2625)

Author: ericproulx

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2025-06-18 20:27:19 UTC using RuboCop version 1.76.2.
+# on 2025-11-15 17:39:14 UTC using RuboCop version 1.81.7.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -70,6 +70,11 @@ RSpec/InstanceVariable:
     - 'spec/grape/middleware/versioner/accept_version_header_spec.rb'
     - 'spec/grape/middleware/versioner/header_spec.rb'
 
+# Offense count: 1
+RSpec/LeakyLocalVariable:
+  Exclude:
+    - 'spec/grape/api_spec.rb'
+
 # Offense count: 1
 RSpec/MessageChain:
   Exclude:
@@ -94,48 +99,39 @@ RSpec/RepeatedExample:
     - 'spec/grape/middleware/versioner/accept_version_header_spec.rb'
     - 'spec/grape/validations/validators/allow_blank_validator_spec.rb'
 
-# Offense count: 10
+# Offense count: 8
 RSpec/RepeatedExampleGroupDescription:
   Exclude:
     - 'spec/grape/api_spec.rb'
     - 'spec/grape/endpoint_spec.rb'
     - 'spec/grape/util/inheritable_setting_spec.rb'
-    - 'spec/grape/validations/validators/values_validator_spec.rb'
 
-# Offense count: 4
+# Offense count: 2
 RSpec/StubbedMock:
   Exclude:
     - 'spec/grape/dsl/inside_route_spec.rb'
-    - 'spec/grape/dsl/routing_spec.rb'
     - 'spec/grape/middleware/formatter_spec.rb'
 
-# Offense count: 118
+# Offense count: 32
 RSpec/SubjectStub:
   Exclude:
     - 'spec/grape/api_spec.rb'
-    - 'spec/grape/dsl/callbacks_spec.rb'
-    - 'spec/grape/dsl/helpers_spec.rb'
     - 'spec/grape/dsl/inside_route_spec.rb'
-    - 'spec/grape/dsl/middleware_spec.rb'
     - 'spec/grape/dsl/parameters_spec.rb'
-    - 'spec/grape/dsl/request_response_spec.rb'
     - 'spec/grape/dsl/routing_spec.rb'
-    - 'spec/grape/dsl/settings_spec.rb'
     - 'spec/grape/middleware/base_spec.rb'
     - 'spec/grape/middleware/formatter_spec.rb'
     - 'spec/grape/middleware/globals_spec.rb'
     - 'spec/grape/middleware/stack_spec.rb'
 
-# Offense count: 22
+# Offense count: 20
 # Configuration parameters: IgnoreNameless, IgnoreSymbolicNames.
 RSpec/VerifiedDoubles:
   Exclude:
     - 'spec/grape/api_spec.rb'
     - 'spec/grape/dsl/inside_route_spec.rb'
     - 'spec/grape/integration/rack_sendfile_spec.rb'
     - 'spec/grape/middleware/formatter_spec.rb'
-    - 'spec/grape/validations/multiple_attributes_iterator_spec.rb'
-    - 'spec/grape/validations/single_attribute_iterator_spec.rb'
 
 # Offense count: 2
 RSpec/VoidExpect:

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 #### Features
 
+* [#2625](https://github.com/ruby-grape/grape/pull/2625): Update rubocop to 1.81.7 and fix style offenses - [@ericproulx](https://github.com/ericproulx).
 * Your contribution here.
 
 #### Fixes

Gemfile

@@ -8,9 +8,9 @@ group :development, :test do
   gem 'builder', require: false
   gem 'bundler'
   gem 'rake'
-  gem 'rubocop', '1.76.2', require: false
-  gem 'rubocop-performance', '1.25.0', require: false
-  gem 'rubocop-rspec', '3.6.0', require: false
+  gem 'rubocop', '1.81.7', require: false
+  gem 'rubocop-performance', '1.26.1', require: false
+  gem 'rubocop-rspec', '3.8.0', require: false
 end
 
 group :development do

lib/grape/api.rb

@@ -19,6 +19,7 @@ def self.build(val)
 
     class << self
       extend Forwardable
+
       attr_accessor :base_instance, :instances
 
       delegate_missing_to :base_instance

lib/grape/api/instance.rb

@@ -20,6 +20,7 @@ class Instance
 
       class << self
         extend Forwardable
+
         attr_reader :instance, :base
         attr_accessor :configuration
 

lib/grape/middleware/stack.rb

@@ -6,6 +6,7 @@ module Middleware
     # It allows to insert and insert after
     class Stack
       extend Forwardable
+
       class Middleware
         attr_reader :args, :block, :klass
 

lib/grape/util/cache.rb

@@ -9,6 +9,7 @@ class Cache
 
       class << self
         extend Forwardable
+
         def_delegators :cache, :[]
         def_delegators :instance, :cache
       end

spec/grape/api/deeply_included_options_spec.rb

@@ -32,6 +32,7 @@
   let(:default) do
     Module.new do
       extend ActiveSupport::Concern
+
       included do
         format :json
       end

spec/grape/api/nested_helpers_spec.rb

@@ -4,6 +4,7 @@
   let(:helper_methods) do
     Module.new do
       extend Grape::API::Helpers
+
       def current_user
         @current_user ||= params[:current_user]
       end

spec/grape/api_spec.rb

@@ -3909,6 +3909,7 @@ def my_method
           v1 = Class.new(described_class) do
             version :v1, using: :path
             include module_to_include
+
             my_method
           end
           v2 = Class.new(described_class) do