Configure rubocop correctly

.rubocop.yml

@@ -1,43 +1,11 @@
-AllCops:
-  TargetRubyVersion: 2.2
-
-Metrics/ParameterLists:
-  Max: 6
-  CountKeywordArgs: true
-
-Metrics/MethodLength:
-  Max: 25
-  CountComments: false
-
-Metrics/AbcSize:
-  Enabled: false
-
-Metrics/ClassLength:
-  Max: 300
-
-Metrics/ModuleLength:
-  Max: 300
-
-Metrics/BlockLength:
-  Max: 30
-
-Metrics/CyclomaticComplexity:
-  Max: 12
-
-Metrics/PerceivedComplexity:
-  Max: 15
-
-BlockNesting:
-  Max: 4
-
-Metrics/LineLength:
-  Enabled: false
+inherit_from: .rubocop_todo.yml
 
-AccessModifierIndentation:
-  Enabled: false
-
-Documentation:
-  Enabled: false
+AllCops:
+  TargetRubyVersion: 2.0
+  DisabledByDefault: true
+  Exclude:
+    - spec/sandbox/**/*
+    - spec/fixtures/**/*
 
 # Enforce Ruby 1.8-compatible hash syntax
 HashSyntax:
@@ -47,14 +15,6 @@ HashSyntax:
 SpaceInsideHashLiteralBraces:
   EnforcedStyle: no_space
 
-# Allow dots at the end of lines
-DotPosition:
-  Enabled: false
-
-# Don't require magic comment at the top of every file
-Encoding:
-  Enabled: false
-
 # Enforce outdenting of access modifiers (i.e. public, private, protected)
 AccessModifierIndentation:
   EnforcedStyle: outdent
@@ -71,15 +31,9 @@ CaseIndentation:
   EnforcedStyle: end
   IndentOneStep: false
 
-DoubleNegation:
-  Enabled: false
-
 StringLiterals:
   EnforcedStyle: double_quotes
 
-Style/SymbolLiteral:
-  Enabled: false
-
 Lint/AssignmentInCondition:
   Exclude:
     - 'lib/thor/line_editor/readline.rb'
@@ -110,13 +64,13 @@ Lint/UnusedMethodArgument:
     - 'lib/thor/parser/arguments.rb'
     - 'lib/thor/shell/html.rb'
     - 'spec/actions/empty_directory_spec.rb'
+    - 'spec/fixtures/invoke.thor'
 
-Style/AccessorMethodName:
+Naming/AccessorMethodName:
   Exclude:
     - 'lib/thor/line_editor/basic.rb'
-
-Style/Alias:
-  Enabled: false
+    - 'spec/fixtures/group.thor'
+    - 'spec/sandbox/group.thor'
 
 Style/ClassAndModuleChildren:
   Exclude:
@@ -130,7 +84,7 @@ Style/ClassVars:
     - 'lib/thor/util.rb'
     - 'spec/util_spec.rb'
 
-Style/ConstantName:
+Naming/ConstantName:
   Exclude:
     - 'spec/line_editor_spec.rb'
 
@@ -145,16 +99,15 @@ Style/GlobalVars:
     - 'spec/register_spec.rb'
     - 'spec/thor_spec.rb'
 
-Style/IndentArray:
+Layout/IndentArray:
   EnforcedStyle: consistent
 
 Style/MethodMissing:
   Exclude:
     - 'lib/thor/core_ext/hash_with_indifferent_access.rb'
     - 'lib/thor/runner.rb'
-
-Style/MutableConstant:
-  Enabled: false
+    - 'spec/fixtures/script.thor'
+    - 'spec/sandbox/script.thor'
 
 Style/NumericLiteralPrefix:
   Exclude:
@@ -176,9 +129,6 @@ Style/TrailingUnderscoreVariable:
   Exclude:
     - 'lib/thor/group.rb'
 
-Style/TrailingWhitespace:
+Layout/TrailingWhitespace:
   Exclude:
     - 'spec/shell/basic_spec.rb'
-
-Style/AlignParameters:
-  Enabled: false

.rubocop_todo.yml

@@ -0,0 +1,59 @@
+# This configuration was generated by
+# `rubocop --auto-gen-config`
+# on 2020-02-14 14:37:56 -0500 using RuboCop version 0.50.0.
+# 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.
+
+# Offense count: 4
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles, IndentationWidth.
+# SupportedStyles: outdent, indent
+Layout/AccessModifierIndentation:
+  Exclude:
+    - 'lib/thor/nested_context.rb'
+
+# Offense count: 10
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles, EnforcedStyleForEmptyBraces, SupportedStylesForEmptyBraces.
+# SupportedStyles: space, no_space, compact
+# SupportedStylesForEmptyBraces: space, no_space
+Layout/SpaceInsideHashLiteralBraces:
+  Exclude:
+    - 'lib/thor/actions/inject_into_file.rb'
+    - 'spec/actions_spec.rb'
+    - 'spec/command_spec.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyleAlignWith, SupportedStylesAlignWith, AutoCorrect.
+# SupportedStylesAlignWith: keyword, variable, start_of_line
+Lint/EndAlignment:
+  Exclude:
+    - 'lib/thor/error.rb'
+
+# Offense count: 65
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles, UseHashRocketsWithSymbolValues, PreferHashRocketsForNonAlnumEndingSymbols.
+# SupportedStyles: ruby19, hash_rockets, no_mixed_keys, ruby19_no_mixed_keys
+Style/HashSyntax:
+  Exclude:
+    - 'lib/thor/actions/inject_into_file.rb'
+    - 'spec/actions/inject_into_file_spec.rb'
+
+# Offense count: 24
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles, ConsistentQuotesInMultiline.
+# SupportedStyles: single_quotes, double_quotes
+Style/StringLiterals:
+  Exclude:
+    - 'Gemfile'
+    - 'lib/thor/actions.rb'
+    - 'lib/thor/actions/inject_into_file.rb'
+    - 'lib/thor/base.rb'
+    - 'lib/thor/error.rb'
+    - 'lib/thor/parser/option.rb'
+    - 'lib/thor/shell/color.rb'
+    - 'spec/parser/options_spec.rb'
+    - 'spec/script_exit_status_spec.rb'

Gemfile

@@ -12,7 +12,7 @@ group :test do
   gem "coveralls", ">= 0.8.19"
   gem "rspec", ">= 3"
   gem "rspec-mocks", ">= 3"
-  gem "rubocop", ">= 0.19"
+  gem "rubocop", "~> 0.50.0"
   gem "simplecov", ">= 0.13"
   gem "webmock"
 end

lib/thor/error.rb

@@ -1,5 +1,5 @@
 class Thor
-  Correctable = if defined?(DidYouMean::SpellChecker) && defined?(DidYouMean::Correctable)
+  Correctable = if defined?(DidYouMean::SpellChecker) && defined?(DidYouMean::Correctable) # rubocop:disable Naming/ConstantName
                   # In order to support versions of Ruby that don't have keyword
                   # arguments, we need our own spell checker class that doesn't take key
                   # words. Even though this code wouldn't be hit because of the check

spec/nested_context_spec.rb

@@ -2,7 +2,7 @@
 
 describe Thor::NestedContext do
   subject(:context) { described_class.new }
-  
+
   describe "#enter" do
     it "is never empty within the entered block" do
       context.enter do
@@ -17,4 +17,4 @@
       expect(context).not_to be_entered
     end
   end
-end
+end

spec/no_warnings_spec.rb

@@ -3,7 +3,7 @@
 context "when $VERBOSE is enabled" do
   it "prints no warnings" do
     root = File.expand_path("..", __dir__)
-    _, err, _ = Open3.capture3("ruby -I #{root}/lib #{root}/spec/fixtures/verbose.thor")
+    _, err, = Open3.capture3("ruby -I #{root}/lib #{root}/spec/fixtures/verbose.thor")
 
     expect(err).to be_empty
   end