chore(deps): bump Rubocop to 0.93.0 (#8430)

Merge pull request 8430

.rubocop.yml

@@ -77,6 +77,8 @@ Lint/EmptyFile:
   Enabled: true
 Lint/FloatComparison:
   Enabled: true
+Lint/HashCompareByIdentity:
+  Enabled: true
 Lint/IdentityComparison:
   Enabled: true
 Lint/MissingSuper:
@@ -90,6 +92,8 @@ Lint/OutOfRangeRegexpRef:
   Enabled: true
 Lint/RaiseException:
   Enabled: true
+Lint/RedundantSafeNavigation:
+  Enabled: true
 Lint/SelfAssignment:
   Enabled: true
 Lint/StructNewOverride:
@@ -205,6 +209,8 @@ Style/CaseLikeIf:
 Style/ClassAndModuleChildren:
   Exclude:
     - test/**/*.rb
+Style/ClassEqualityComparison:
+  Enabled: true
 Style/CombinableLoops:
   Enabled: true
 Style/Documentation:

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
-# `rubocop --auto-gen-config`
+# `rubocop --auto-gen-config --auto-gen-only-exclude`
-# on 2020-09-04 16:17:09 UTC using RuboCop version 0.90.0.
+# on 2020-10-08 15:38:52 UTC using RuboCop version 0.93.0.
 # 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
@@ -20,8 +20,9 @@ Style/CombinableLoops:
   Exclude:
     - 'lib/jekyll/tags/post_url.rb'
 
-# Offense count: 2
+# Offense count: 1
+# Configuration parameters: AllowedMethods.
+# AllowedMethods: respond_to_missing?
 Style/OptionalBooleanParameter:
   Exclude:
-    - 'lib/jekyll/collection.rb'
     - 'lib/jekyll/log_adapter.rb'

Gemfile

@@ -23,7 +23,7 @@ group :test do
   gem "nokogiri", "~> 1.7"
   gem "rspec"
   gem "rspec-mocks"
-  gem "rubocop", "~> 0.92.0"
+  gem "rubocop", "~> 0.93.0"
   gem "rubocop-performance"
   gem "test-dependency-theme", :path => File.expand_path("test/fixtures/test-dependency-theme", __dir__)
   gem "test-theme", :path => File.expand_path("test/fixtures/test-theme", __dir__)

lib/jekyll/convertible.rb

@@ -69,7 +69,7 @@ module Jekyll
     end
 
     def validate_permalink!(filename)
-      if self.data["permalink"]&.to_s&.empty?
+      if self.data["permalink"] == ""
         raise Errors::InvalidPermalinkError, "Invalid permalink in #{filename}"
       end
     end

lib/jekyll/page.rb

@@ -194,11 +194,11 @@ module Jekyll
     def excerpt
       return @excerpt if defined?(@excerpt)
 
-      @excerpt = data["excerpt"]&.to_s
+      @excerpt = data["excerpt"] ? data["excerpt"].to_s : nil
     end
 
     def generate_excerpt?
-      !excerpt_separator.empty? && self.class == Jekyll::Page && html?
+      !excerpt_separator.empty? && instance_of?(Jekyll::Page) && html?
     end
 
     private

test/test_tags.rb

@@ -15,7 +15,7 @@ class TestTags < JekyllUnitTest
     site.read if override["read_all"]
 
     info = { :filters => [Jekyll::Filters], :registers => { :site => site } }
-    @converter = site.converters.find { |c| c.class == converter_class }
+    @converter = site.converters.find { |c| c.instance_of?(converter_class) }
     payload = { "highlighter_prefix" => @converter.highlighter_prefix,
                 "highlighter_suffix" => @converter.highlighter_suffix, }