Ruby: Introduce rubocop (#49)

* Add initial legacy versions of rubocop gems

* Initial files

* Downgrade rubocop gems to support v2.3

* Further downgrade of rubocop gems

* Re-generate files

* Update rubocop to later versions

* Upgrade rubocop slightly and scan on 2.5

* Re-generate config

* Add marker for rubocop autogen

* AF: FrozenStringLiteral

* AF: DescribedClass

* AF: TrailingLines

* AF: StringLiterals

* AF: SpecialGlobalVars

* Re-generated todo file

* Add changelog entry

* Fix ruby changelog message

CHANGELOG.md

@@ -6,6 +6,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
+### Added
+- [Ruby] Initial rubocop gems and basic compliance added (More work to come) ([#49](https://github.com/cucumber/compatibility-kit/pull/49))
+
 ### Changed
 - [Ruby] Minimum ruby version is now bumped from 2.3 to 2.5 ([#47](https://github.com/cucumber/compatibility-kit/pull/47))
 
@@ -25,7 +28,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [11.2.0] - 2022-12-23
 ### Changed
-- Update cucumber-messages requirement from ~> 19.1, >= 19.1.2 to >= 19.1.2, < 22.0 in /ruby ([#28](https://github.com/cucumber/compatibility-kit/pull/28))
+- [Ruby] Update cucumber-messages requirement from `~> 19.1, >= 19.1.2` to `>= 19.1.2, < 22.0` ([#28](https://github.com/cucumber/compatibility-kit/pull/28))
 
 ## [11.1.0] - 2022-12-17
 

ruby/.rubocop.yml

@@ -0,0 +1,32 @@
+require:
+  - rubocop-performance
+  - rubocop-rake
+  - rubocop-rspec
+
+inherit_from: .rubocop_todo.yml
+
+inherit_mode:
+  merge:
+    - Exclude
+
+AllCops:
+  TargetRubyVersion: 2.5
+  NewCops: enable
+
+# Disabled on our repo's to enable polyglot-release
+# TODO: Re-enable once rubocop > 1.40
+#Gemspec/RequireMFA:
+#  Enabled: false
+
+Layout/LineLength:
+  Max: 200
+
+Style/Documentation:
+  Enabled: false
+
+Style/RegexpLiteral:
+  EnforcedStyle: slashes
+  AllowInnerSlashes: true
+
+RSpec/MessageSpies:
+  EnforcedStyle: receive

ruby/.rubocop_todo.yml

@@ -0,0 +1,317 @@
+# This configuration was generated by
+# `rubocop --auto-gen-config`
+# on 2023-10-05 09:37:18 UTC using RuboCop version 1.17.0.
+# 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
+# versions of RuboCop, may require this file to be generated again.
+
+# TODO: Oct '23 -> 25 files inspected, 145 offenses detected, 96 offenses auto-correctable
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Layout/EmptyLineAfterGuardClause:
+  Exclude:
+    - 'lib/messages_comparator.rb'
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, IndentationWidth.
+# SupportedStyles: aligned, indented, indented_relative_to_receiver
+Layout/MultilineMethodCallIndentation:
+  Exclude:
+    - 'lib/cucumber-compatibility-kit.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: AllowForAlignment, EnforcedStyleForExponentOperator.
+# SupportedStylesForExponentOperator: space, no_space
+Layout/SpaceAroundOperators:
+  Exclude:
+    - 'features/attachments/attachments.feature.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: require_no_space, require_space
+Layout/SpaceInLambdaLiteral:
+  Exclude:
+    - 'features/parameter-types/parameter-types.feature.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, EnforcedStyleForEmptyBraces, SpaceBeforeBlockParameters.
+# SupportedStyles: space, no_space
+# SupportedStylesForEmptyBraces: space, no_space
+Layout/SpaceInsideBlockBraces:
+  Exclude:
+    - 'features/attachments/attachments.feature.rb'
+
+# Offense count: 4
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: space, no_space
+Layout/SpaceInsideStringInterpolation:
+  Exclude:
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 1
+# Configuration parameters: AllowComments, AllowEmptyLambdas.
+Lint/EmptyBlock:
+  Exclude:
+    - 'features/minimal/minimal.feature.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Lint/EnsureReturn:
+  Exclude:
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Lint/NonDeterministicRequireOrder:
+  Exclude:
+    - 'Rakefile'
+
+# Offense count: 1
+# Configuration parameters: AllowComments, AllowNil.
+Lint/SuppressedException:
+  Exclude:
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: IgnoreEmptyBlocks, AllowUnusedKeywordArguments.
+Lint/UnusedBlockArgument:
+  Exclude:
+    - 'features/unknown-parameter-type/unknown-parameter-type.feature.rb'
+
+# Offense count: 3
+# Configuration parameters: IgnoredMethods, CountRepeatedAttributes.
+Metrics/AbcSize:
+  Max: 27
+
+# Offense count: 3
+# Configuration parameters: CountComments, CountAsOne, ExcludedMethods, IgnoredMethods.
+# IgnoredMethods: refine
+Metrics/BlockLength:
+  Max: 83
+
+# Offense count: 3
+# Configuration parameters: IgnoredMethods.
+Metrics/CyclomaticComplexity:
+  Max: 11
+
+# Offense count: 3
+# Configuration parameters: CountComments, CountAsOne, ExcludedMethods, IgnoredMethods.
+Metrics/MethodLength:
+  Max: 20
+
+# Offense count: 3
+# Configuration parameters: IgnoredMethods.
+Metrics/PerceivedComplexity:
+  Max: 11
+
+# Offense count: 7
+# Configuration parameters: ExpectMatchingDefinition, CheckDefinitionPathHierarchy, Regex, IgnoreExecutableScripts, AllowedAcronyms.
+# AllowedAcronyms: CLI, DSL, ACL, API, ASCII, CPU, CSS, DNS, EOF, GUID, HTML, HTTP, HTTPS, ID, IP, JSON, LHS, QPS, RAM, RHS, RPC, SLA, SMTP, SQL, SSH, TCP, TLS, TTL, UDP, UI, UID, UUID, URI, URL, UTF8, VM, XML, XMPP, XSRF, XSS
+Naming/FileName:
+  Exclude:
+    - 'features/data-tables/data-tables.feature.rb'
+    - 'features/examples-tables/examples-tables.feature.rb'
+    - 'features/parameter-types/parameter-types.feature.rb'
+    - 'features/stack-traces/stack-traces.feature.rb'
+    - 'features/unknown-parameter-type/unknown-parameter-type.feature.rb'
+    - 'lib/cucumber-compatibility-kit.rb'
+    - 'spec/cucumber-compatibility-kit_spec.rb'
+
+# Offense count: 2
+# Configuration parameters: NamePrefix, ForbiddenPrefixes, AllowedMethods, MethodDefinitionMacros.
+# NamePrefix: is_, has_, have_
+# ForbiddenPrefixes: is_, has_, have_
+# AllowedMethods: is_a?
+# MethodDefinitionMacros: define_method, define_singleton_method
+Naming/PredicateName:
+  Exclude:
+    - 'lib/cucumber-compatibility-kit.rb'
+
+# Offense count: 2
+# Cop supports --auto-correct.
+Performance/Count:
+  Exclude:
+    - 'lib/cucumber-compatibility-kit.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Performance/RedundantBlockCall:
+  Exclude:
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: AutoCorrect.
+Performance/StringInclude:
+  Exclude:
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 1
+Performance/UnfreezeString:
+  Exclude:
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 2
+# Configuration parameters: Max.
+RSpec/ExampleLength:
+  Exclude:
+    - 'spec/messages_comparator_spec.rb'
+
+# Offense count: 3
+# Configuration parameters: Include, CustomTransform, IgnoreMethods, SpecSuffixOnly.
+# Include: **/*_spec*rb*, **/spec/**/*
+RSpec/FilePath:
+  Exclude:
+    - 'spec/cucumber-compatibility-kit_spec.rb'
+    - 'spec/keys_checker_spec.rb'
+    - 'spec/messages_comparator_spec.rb'
+
+# Offense count: 1
+# Configuration parameters: AllowSubject.
+RSpec/MultipleMemoizedHelpers:
+  Max: 7
+
+# Offense count: 10
+# Configuration parameters: IgnoreSharedExamples.
+RSpec/NamedSubject:
+  Exclude:
+    - 'spec/keys_checker_spec.rb'
+    - 'spec/messages_comparator_spec.rb'
+
+# Offense count: 1
+Rake/Desc:
+  Exclude:
+    - 'Rakefile'
+
+# Offense count: 4
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, ProceduralMethods, FunctionalMethods, IgnoredMethods, AllowBracesOnProceduralOneLiners, BracesRequiredMethods.
+# SupportedStyles: line_count_based, semantic, braces_for_chaining, always_braces
+# ProceduralMethods: benchmark, bm, bmbm, create, each_with_object, measure, new, realtime, tap, with_object
+# FunctionalMethods: let, let!, subject, watch
+# IgnoredMethods: lambda, proc, it
+Style/BlockDelimiters:
+  Exclude:
+    - 'spec/cucumber-compatibility-kit_spec.rb'
+    - 'spec/keys_checker_spec.rb'
+    - 'templates/specs.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: nested, compact
+Style/ClassAndModuleChildren:
+  Exclude:
+    - 'lib/cucumber-compatibility-kit.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: Keywords.
+# Keywords: TODO, FIXME, OPTIMIZE, HACK, REVIEW, NOTE
+Style/CommentAnnotation:
+  Exclude:
+    - 'lib/shared_examples.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/Encoding:
+  Exclude:
+    - 'Rakefile'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/ExpandPathArguments:
+  Exclude:
+    - 'Rakefile'
+
+# Offense count: 3
+# Cop supports --auto-correct.
+Style/GlobalStdStream:
+  Exclude:
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: AllowedReceivers.
+Style/HashEachMethods:
+  Exclude:
+    - 'lib/messages_comparator.rb'
+
+# Offense count: 5
+# Cop supports --auto-correct.
+Style/IfUnlessModifier:
+  Exclude:
+    - 'features/retry/retry.feature.rb'
+    - 'lib/shared_examples.rb'
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 3
+# Cop supports --auto-correct.
+# Configuration parameters: IgnoredMethods.
+Style/MethodCallWithoutArgsParentheses:
+  Exclude:
+    - 'spec/messages_comparator_spec.rb'
+
+# Offense count: 1
+Style/MixinUsage:
+  Exclude:
+    - 'Rakefile'
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, IgnoredMethods.
+# SupportedStyles: predicate, comparison
+Style/NumericPredicate:
+  Exclude:
+    - 'lib/cucumber-compatibility-kit.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, AllowedCompactTypes.
+# SupportedStyles: compact, exploded
+Style/RaiseArgs:
+  Exclude:
+    - 'lib/cucumber-compatibility-kit.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: Methods.
+Style/RedundantArgument:
+  Exclude:
+    - 'features/attachments/attachments.feature.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/RedundantBegin:
+  Exclude:
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 2
+# Cop supports --auto-correct.
+Style/RedundantSelf:
+  Exclude:
+    - 'features/attachments/attachments.feature.rb'
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: only_raise, only_fail, semantic
+Style/SignalException:
+  Exclude:
+    - 'lib/shared_examples.rb'
+    - 'spec/capture_warnings.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: MinSize, WordRegex.
+# SupportedStyles: percent, brackets
+Style/WordArray:
+  EnforcedStyle: brackets

ruby/Gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 gemspec

ruby/Rakefile

@@ -1,15 +1,17 @@
 # encoding: utf-8
+# frozen_string_literal: true
+
 require 'rubygems'
 require 'bundler'
 Bundler::GemHelper.install_tasks
 
-$:.unshift File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift File.expand_path('../lib', __FILE__)
 
 Dir['./rake/*.rb'].each do |f|
   require f
 end
 
-require "rspec/core/rake_task"
+require 'rspec/core/rake_task'
 RSpec::Core::RakeTask.new(:spec)
 
 require_relative 'spec/capture_warnings'