Upgrade Rubocop

.rubocop.yml

@@ -1,3 +1,42 @@
+inherit_from: .rubocop_todo.yml
+
+Layout/SpaceBeforeBrackets: # (new in 1.7)
+  Enabled: true
+Lint/AmbiguousAssignment: # (new in 1.7)
+  Enabled: true
+Lint/DuplicateBranch: # (new in 1.3)
+  Enabled: true
+Lint/DuplicateRegexpCharacterClassElement: # (new in 1.1)
+  Enabled: true
+Lint/EmptyBlock: # (new in 1.1)
+  Enabled: true
+Lint/EmptyClass: # (new in 1.3)
+  Enabled: true
+Lint/NoReturnInBeginEndBlocks: # (new in 1.2)
+  Enabled: true
+Lint/ToEnumArguments: # (new in 1.1)
+  Enabled: true
+Lint/UnexpectedBlockArity: # (new in 1.5)
+  Enabled: true
+Lint/UnmodifiedReduceAccumulator: # (new in 1.1)
+  Enabled: true
+Style/ArgumentsForwarding: # (new in 1.1)
+  Enabled: true
+Style/CollectionCompact: # (new in 1.2)
+  Enabled: true
+Style/DocumentDynamicEvalDefinition: # (new in 1.1)
+  Enabled: true
+Style/HashExcept: # (new in 1.7)
+  Enabled: true
+Style/NegatedIfElseCondition: # (new in 1.2)
+  Enabled: true
+Style/NilLambda: # (new in 1.3)
+  Enabled: true
+Style/RedundantArgument: # (new in 1.4)
+  Enabled: true
+Style/SwapValues: # (new in 1.1)
+  Enabled: true
+
 AllCops:
   TargetRubyVersion: 2.5
   DisplayCopNames: true
@@ -52,7 +91,7 @@ Metrics/ClassLength:
 Metrics/CyclomaticComplexity:
   Enabled: false
 
-Metrics/LineLength:
+Layout/LineLength:
   Enabled: false
 
 Metrics/MethodLength:

.rubocop_todo.yml

@@ -0,0 +1,43 @@
+# This configuration was generated by
+# `rubocop --auto-gen-config --exclude-limit 300`
+# on 2020-12-31 10:05:59 UTC using RuboCop version 1.7.0.
+# 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: 5
+# Configuration parameters: AllowComments, AllowEmptyLambdas.
+Lint/EmptyBlock:
+  Exclude:
+    - 'adsf-live/test/test_watcher.rb'
+    - 'adsf/test/test_server.rb'
+
+# Offense count: 1
+# Configuration parameters: IgnoredPatterns.
+# IgnoredPatterns: (?-mix:(exactly|at_least|at_most)\(\d+\)\.times)
+Lint/UnreachableLoop:
+  Exclude:
+    - 'adsf/test/test_server.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Lint/UselessTimes:
+  Exclude:
+    - 'adsf-live/test/test_watcher.rb'
+
+# Offense count: 3
+# Cop supports --auto-correct.
+Style/ExplicitBlockArgument:
+  Exclude:
+    - 'Rakefile'
+    - 'adsf/test/test_server.rb'
+
+# Offense count: 6
+# Cop supports --auto-correct.
+Style/StringConcatenation:
+  Exclude:
+    - 'adsf-live/Rakefile'
+    - 'adsf/Rakefile'
+    - 'adsf/lib/adsf/rack/index_file_finder.rb'
+    - 'scripts/release'

Gemfile

@@ -12,6 +12,6 @@ group :development do
   gem 'minitest'
   gem 'rack-test'
   gem 'rake'
-  gem 'rubocop', '~> 0.81.0'
+  gem 'rubocop', '~> 1.7'
   gem 'webrick', '~> 1.7'
 end