Bump RuboCop to `1.36.x` (#9125)

Merge pull request 9125

.rubocop.yml

@@ -27,6 +27,9 @@ AllCops:
 
 Gemspec/DeprecatedAttributeAssignment:
   Enabled: true
+Gemspec/RequireMFA:
+  Enabled: false
+
 Layout/BeginEndAlignment:
   Enabled: true
 Layout/EmptyComment:
@@ -43,6 +46,12 @@ Layout/HashAlignment:
   EnforcedHashRocketStyle: table
 Layout/IndentationWidth:
   Severity: error
+Layout/LineContinuationLeadingSpace:
+  Enabled: true
+Layout/LineContinuationSpacing:
+  Enabled: true
+Layout/LineEndStringConcatenationIndentation:
+  Enabled: true
 Layout/LineLength:
   Exclude:
     - !ruby/regexp /features\/.*.rb/
@@ -66,12 +75,18 @@ Layout/SpaceInsideHashLiteralBraces:
 
 Lint/AmbiguousAssignment:
   Enabled: true
+Lint/AmbiguousOperatorPrecedence:
+  Enabled: true
+Lint/AmbiguousRange:
+  Enabled: true
 Lint/BinaryOperatorWithIdenticalOperands:
   Enabled: true
 Lint/ConstantDefinitionInBlock:
   Enabled: true
   Exclude:
     - test/**/*.rb
+Lint/ConstantOverwrittenInRescue:
+  Enabled: true
 Lint/DeprecatedConstants:
   Enabled: true
 Lint/DeprecatedOpenSSLConstant:
@@ -123,6 +138,10 @@ Lint/RedundantDirGlobSort:
   Enabled: true
 Lint/RedundantSafeNavigation:
   Enabled: true
+Lint/RequireRangeParentheses:
+  Enabled: true
+Lint/RequireRelativeSelfPath:
+  Enabled: true
 Lint/SelfAssignment:
   Enabled: true
 Lint/StructNewOverride:
@@ -187,6 +206,8 @@ Metrics/ParameterLists:
 Metrics/PerceivedComplexity:
   Max: 13
 
+Minitest/AssertEmptyLiteral:
+  Enabled: false
 Minitest/AssertInDelta:
   Enabled: true
 Minitest/AssertionInLifecycleHook:
@@ -199,6 +220,8 @@ Minitest/AssertPathExists:
   Enabled: true
 Minitest/AssertSilent:
   Enabled: true
+Minitest/AssertWithExpectedArgument:
+  Enabled: true
 Minitest/LiteralAsActualArgument:
   Enabled: true
 Minitest/TestMethodName:
@@ -211,10 +234,10 @@ Minitest/RefuteKindOf:
   Enabled: true
 Minitest/RefutePathExists:
   Enabled: true
+Minitest/UnreachableAssertion:
+  Enabled: true
 Minitest/UnspecifiedException:
   Enabled: true
-Minitest/AssertEmptyLiteral:
-  Enabled: false
 
 Naming/FileName:
   Enabled: false
@@ -242,10 +265,16 @@ Performance/CollectionLiteralInLoop:
   Enabled: true
 Performance/ConstantRegexp:
   Enabled: true
+Performance/MapCompact:
+  Enabled: true
 Performance/MethodObjectAsBlock:
   Enabled: true
+Performance/RedundantEqualityComparisonBlock:
+  Enabled: false
 Performance/RedundantSortBlock:
   Enabled: true
+Performance/RedundantSplitRegexpArgument:
+  Enabled: true
 Performance/RedundantStringChars:
   Enabled: true
 Performance/ReverseFirst:
@@ -254,6 +283,8 @@ Performance/SortReverse:
   Enabled: false
 Performance/Squeeze:
   Enabled: true
+Performance/StringIdentifierArgument:
+  Enabled: true
 Performance/StringInclude:
   Enabled: true
   Exclude:
@@ -261,6 +292,10 @@ Performance/StringInclude:
 Performance/Sum:
   Enabled: true
 
+Security/CompoundHash:
+  Enabled: true
+Security/IoMethods:
+  Enabled: true
 Security/MarshalLoad:
   Exclude:
     - !ruby/regexp /test\/.*.rb$/
@@ -303,12 +338,20 @@ Style/Documentation:
   Enabled: false
 Style/DoubleNegation:
   Enabled: false
+Style/EmptyHeredoc:
+  Enabled: true
 Style/EndlessMethod:
   Enabled: true
 Style/ExplicitBlockArgument:
   Enabled: false
 Style/ExponentialNotation:
   Enabled: true
+Style/EnvHome:
+  Enabled: true
+Style/FetchEnvVar:
+  Enabled: false
+Style/FileRead:
+  Enabled: false
 Style/FormatStringToken:
   Exclude:
     - lib/jekyll/utils/ansi.rb
@@ -316,6 +359,8 @@ Style/FormatStringToken:
     - lib/jekyll/profiler.rb
 Style/FrozenStringLiteralComment:
   EnforcedStyle: always
+Style/FileWrite:
+  Enabled: true
 Style/GlobalStdStream:
   Enabled: true
 Style/GuardClause:
@@ -341,6 +386,12 @@ Style/IfWithBooleanLiteralBranches:
   Enabled: true
 Style/KeywordParametersOrder:
   Enabled: true
+Style/MagicCommentFormat:
+  Enabled: true
+Style/MapCompactWithConditionalBlock:
+  Enabled: true
+Style/MapToHash:
+  Enabled: true
 Style/MixinUsage:
   Exclude:
     - test/helper.rb
@@ -350,10 +401,14 @@ Style/MultilineTernaryOperator:
   Severity: error
 Style/NegatedIfElseCondition:
   Enabled: true
+Style/NestedFileDirname:
+  Enabled: true
 Style/NilLambda:
   Enabled: true
 Style/OptionalBooleanParameter:
   Enabled: true
+  Exclude:
+    - lib/jekyll/log_adapter.rb
 Style/PercentLiteralDelimiters:
   PreferredDelimiters:
     "%Q": "{}"
@@ -363,6 +418,8 @@ Style/PercentLiteralDelimiters:
     "%s": ()
     "%w": ()
     "%x": ()
+Style/QuotedSymbols:
+  Enabled: true
 Style/RedundantArgument:
   Enabled: true
 Style/RedundantAssignment:
@@ -371,12 +428,18 @@ Style/RedundantFetchBlock:
   Enabled: false
 Style/RedundantFileExtensionInRequire:
   Enabled: true
+Style/RedundantInitialize:
+  Enabled: true
+  Exclude:
+    - lib/jekyll/plugin.rb
 Style/RedundantRegexpCharacterClass:
   Enabled: true
 Style/RedundantRegexpEscape:
   Enabled: true
 Style/RedundantSelfAssignment:
   Enabled: true
+Style/RedundantSelfAssignmentBranch:
+  Enabled: true
 Style/RegexpLiteral:
   EnforcedStyle: percent_r
 Style/RescueModifier:

Gemfile

@@ -23,7 +23,7 @@ group :test do
   gem "nokogiri", "~> 1.7"
   gem "rspec"
   gem "rspec-mocks"
-  gem "rubocop", "~> 1.32.0"
+  gem "rubocop", "~> 1.36.0"
   gem "rubocop-minitest"
   gem "rubocop-performance"
   gem "rubocop-rake"

lib/jekyll/commands/build.rb

@@ -30,8 +30,8 @@ module Jekyll
           site = Jekyll::Site.new(options)
 
           if options.fetch("skip_initial_build", false)
-            Jekyll.logger.warn "Build Warning:", "Skipping the initial build." \
+            Jekyll.logger.warn "Build Warning:",
-                               " This may result in an out-of-date site."
+                               "Skipping the initial build. This may result in an out-of-date site."
           else
             build(site, options)
           end

lib/jekyll/commands/clean.rb

@@ -7,8 +7,7 @@ module Jekyll
         def init_with_program(prog)
           prog.command(:clean) do |c|
             c.syntax "clean [subcommand]"
-            c.description "Clean the site " \
+            c.description "Clean the site (removes site output and metadata file) without building."
-                  "(removes site output and metadata file) without building."
 
             add_build_options(c)
 

lib/jekyll/commands/doctor.rb

@@ -53,14 +53,14 @@ module Jekyll
                              "Detected '_posts' directory outside custom `collections_dir`!"
           Jekyll.logger.warn "",
                              "Please move '#{posts_at_root}' into the custom directory at " \
-            "'#{site.in_source_dir(site.config["collections_dir"])}'"
+                             "'#{site.in_source_dir(site.config["collections_dir"])}'"
           false
         end
 
         def deprecated_relative_permalinks(site)
           if site.config["relative_permalinks"]
-            Jekyll::Deprecator.deprecation_message "Your site still uses relative permalinks," \
+            Jekyll::Deprecator.deprecation_message "Your site still uses relative permalinks, " \
-                                                   " which was removed in Jekyll v3.0.0."
+                                                   "which was removed in Jekyll v3.0.0."
             true
           end
         end
@@ -105,9 +105,9 @@ module Jekyll
             next unless real_urls.uniq.size > 1
 
             urls_only_differ_by_case = true
-            Jekyll.logger.warn "Warning:", "The following URLs only differ" \
+            Jekyll.logger.warn "Warning:", "The following URLs only differ by case. On a " \
-              " by case. On a case-insensitive file system one of the URLs" \
+                                           "case-insensitive file system one of the URLs will be " \
-              " will be overwritten by the other: #{real_urls.join(", ")}"
+                                           "overwritten by the other: #{real_urls.join(", ")}"
           end
           urls_only_differ_by_case
         end
@@ -148,8 +148,8 @@ module Jekyll
         def url_exists?(url)
           return true unless url.nil? || url.empty?
 
-          Jekyll.logger.warn "Warning:", "You didn't set an URL in the config file, "\
+          Jekyll.logger.warn "Warning:", "You didn't set an URL in the config file, you may " \
-              "you may encounter problems with some plugins."
+                                         "encounter problems with some plugins."
           false
         end
 
@@ -159,16 +159,16 @@ module Jekyll
         # Addressable::URI#parse only raises a TypeError
         # https://github.com/sporkmonger/addressable/blob/0a0e96acb17225f9b1c9cab0bad332b448934c9a/lib/addressable/uri.rb#L103
         rescue TypeError
-          Jekyll.logger.warn "Warning:", "The site URL does not seem to be valid, "\
+          Jekyll.logger.warn "Warning:", "The site URL does not seem to be valid, " \
-              "check the value of `url` in your config file."
+                                         "check the value of `url` in your config file."
           false
         end
 
         def url_absolute(url)
           return true if url.is_a?(String) && Addressable::URI.parse(url).absolute?
 
-          Jekyll.logger.warn "Warning:", "Your site URL does not seem to be absolute, "\
+          Jekyll.logger.warn "Warning:", "Your site URL does not seem to be absolute, " \
-              "check the value of `url` in your config file."
+                                         "check the value of `url` in your config file."
           false
         end
       end

lib/jekyll/commands/new.rb

@@ -28,8 +28,8 @@ module Jekyll
           FileUtils.mkdir_p new_blog_path
           if preserve_source_location?(new_blog_path, options)
             Jekyll.logger.error "Conflict:", "#{new_blog_path} exists and is not empty."
-            Jekyll.logger.abort_with "", "Ensure #{new_blog_path} is empty or else " \
+            Jekyll.logger.abort_with "", "Ensure #{new_blog_path} is empty or else try again " \
-                      "try again with `--force` to proceed and overwrite any files."
+                                         "with `--force` to proceed and overwrite any files."
           end
 
           if options["blank"]
@@ -108,13 +108,9 @@ module Jekyll
         def create_site(new_blog_path)
           create_sample_files new_blog_path
 
-          File.open(File.expand_path(initialized_post_name, new_blog_path), "w") do |f|
+          File.write(File.expand_path(initialized_post_name, new_blog_path), scaffold_post_content)
-            f.write(scaffold_post_content)
-          end
 
-          File.open(File.expand_path("Gemfile", new_blog_path), "w") do |f|
+          File.write(File.expand_path("Gemfile", new_blog_path), gemfile_contents)
-            f.write(gemfile_contents)
-          end
         end
 
         def preserve_source_location?(path, options)

lib/jekyll/commands/new_theme.rb

@@ -10,8 +10,7 @@ module Jekyll
           prog.command(:"new-theme") do |c|
             c.syntax "new-theme NAME"
             c.description "Creates a new Jekyll theme scaffold"
-            c.option "code_of_conduct", \
+            c.option "code_of_conduct", "-c", "--code-of-conduct",
-                     "-c", "--code-of-conduct", \
                      "Include a Code of Conduct. (defaults to false)"
 
             c.action do |args, opts|
@@ -30,8 +29,8 @@ module Jekyll
           Jekyll.logger.abort_with "Conflict:", "#{theme.path} already exists." if theme.path.exist?
 
           theme.create!
-          Jekyll.logger.info "Your new Jekyll theme, #{theme.name.cyan}," \
+          Jekyll.logger.info "Your new Jekyll theme, #{theme.name.cyan}, " \
-                             " is ready for you in #{theme.path.to_s.cyan}!"
+                             "is ready for you in #{theme.path.to_s.cyan}!"
           Jekyll.logger.info "For help getting started, read #{theme.path}/README.md."
         end
       end

lib/jekyll/commands/serve.rb

@@ -21,11 +21,11 @@ module Jekyll
           "ssl_key"              => ["--ssl-key [KEY]", "X.509 (SSL) Private Key."],
           "port"                 => ["-P", "--port [PORT]", "Port to listen on"],
           "show_dir_listing"     => ["--show-dir-listing",
-                                     "Show a directory listing instead of loading" \
+                                     "Show a directory listing instead of loading " \
-                                     " your index file.",],
+                                     "your index file.",],
           "skip_initial_build"   => ["skip_initial_build", "--skip-initial-build",
-                                     "Skips the initial site build which occurs before" \
+                                     "Skips the initial site build which occurs before " \
-                                     " the server is started.",],
+                                     "the server is started.",],
           "livereload"           => ["-l", "--livereload",
                                      "Use LiveReload to automatically refresh browsers",],
           "livereload_ignore"    => ["--livereload-ignore ignore GLOB1[,GLOB2[,...]]",
@@ -113,8 +113,8 @@ module Jekyll
         def validate_options(opts)
           if opts["livereload"]
             if opts["detach"]
-              Jekyll.logger.warn "Warning:", "--detach and --livereload are mutually exclusive." \
+              Jekyll.logger.warn "Warning:", "--detach and --livereload are mutually exclusive. " \
-                                 " Choosing --livereload"
+                                             "Choosing --livereload"
               opts["detach"] = false
             end
             if opts["ssl_cert"] || opts["ssl_key"]
@@ -132,9 +132,9 @@ module Jekyll
                    livereload_max_delay
                    livereload_ignore
                    livereload_port).any? { |o| opts[o] }
-            Jekyll.logger.abort_with "--livereload-min-delay, "\
+            Jekyll.logger.abort_with "--livereload-min-delay, --livereload-max-delay, " \
-               "--livereload-max-delay, --livereload-ignore, and "\
+                                     "--livereload-ignore, and --livereload-port require " \
-               "--livereload-port require the --livereload option."
+                                     "the --livereload option."
           end
         end
 
@@ -174,7 +174,8 @@ module Jekyll
         # Do a base pre-setup of WEBRick so that everything is in place
         # when we get ready to party, checking for an setting up an error page
         # and making sure our destination exists.
-
+        #
+        # rubocop:disable Security/IoMethods
         def setup(destination)
           require_relative "serve/servlet"
 
@@ -188,6 +189,7 @@ module Jekyll
             end
           end
         end
+        # rubocop:enable Security/IoMethods
 
         def webrick_opts(opts)
           opts = {
@@ -263,8 +265,7 @@ module Jekyll
           return system "xdg-open", address if Utils::Platforms.linux?
           return system "open", address if Utils::Platforms.osx?
 
-          Jekyll.logger.error "Refusing to launch browser; " \
+          Jekyll.logger.error "Refusing to launch browser. Platform launcher unknown."
-            "Platform launcher unknown."
         end
 
         # Keep in our area with a thread or detach the server as requested
@@ -277,9 +278,8 @@ module Jekyll
             end
 
             Process.detach(pid)
-            Jekyll.logger.info "Server detached with pid '#{pid}'.", \
+            Jekyll.logger.info "Server detached with pid '#{pid}'.",
-                               "Run `pkill -f jekyll' or `kill -9 #{pid}'" \
+                               "Run `pkill -f jekyll' or `kill -9 #{pid}' to stop the server."
-                               " to stop the server."
           else
             t = Thread.new { server.start }
             trap("INT") { server.shutdown }

lib/jekyll/commands/serve/live_reload_reactor.rb

@@ -110,7 +110,7 @@ module Jekyll
 
         def log_error(error)
           Jekyll.logger.error "LiveReload experienced an error. " \
-            "Run with --trace for more information."
+                              "Run with --trace for more information."
           raise error
         end
       end

lib/jekyll/commands/serve/servlet.rb

@@ -128,7 +128,7 @@ module Jekyll
       class Servlet < WEBrick::HTTPServlet::FileHandler
         DEFAULTS = {
           "Cache-Control" => "private, max-age=0, proxy-revalidate, " \
-            "no-store, no-cache, must-revalidate",
+                             "no-store, no-cache, must-revalidate",
         }.freeze
 
         def initialize(server, root, callbacks)

lib/jekyll/configuration.rb

@@ -304,8 +304,8 @@ module Jekyll
       return if config["plugins"].is_a?(Array)
 
       Jekyll.logger.error "'plugins' should be set as an array of gem-names, but was: " \
-        "#{config["plugins"].inspect}. Use 'plugins_dir' instead to set the directory " \
+                          "#{config["plugins"].inspect}. Use 'plugins_dir' instead to set " \
-        "for your non-gemified Ruby plugins."
+                          "the directory for your non-gemified Ruby plugins."
       raise Jekyll::Errors::InvalidConfigurationError,
             "'plugins' should be set as an array, but was: #{config["plugins"].inspect}."
     end

lib/jekyll/converters/markdown/kramdown_parser.rb

@@ -1,4 +1,4 @@
-# Frozen-string-literal: true
+# frozen_string_literal: true
 
 module Kramdown
   # A Kramdown::Document subclass meant to optimize memory usage from initializing

lib/jekyll/excerpt.rb

@@ -190,8 +190,8 @@ module Jekyll
 
     def print_build_warning
       Jekyll.logger.warn "Warning:", "Excerpt modified in #{doc.relative_path}!"
-      Jekyll.logger.warn "", "Found a Liquid block containing the excerpt separator" \
+      Jekyll.logger.warn "", "Found a Liquid block containing the excerpt separator " \
-                         " #{doc.excerpt_separator.inspect}. "
+                             "#{doc.excerpt_separator.inspect}."
       Jekyll.logger.warn "", "The block has been modified with the appropriate closing tag."
       Jekyll.logger.warn "", "Feel free to define a custom excerpt or excerpt_separator in the"
       Jekyll.logger.warn "", "document's Front Matter if the generated excerpt is unsatisfactory."

lib/jekyll/filters.rb

@@ -311,7 +311,7 @@ module Jekyll
           order = + 1
         else
           raise ArgumentError, "Invalid nils order: " \
-            "'#{nils}' is not a valid nils order. It must be 'first' or 'last'."
+                               "'#{nils}' is not a valid nils order. It must be 'first' or 'last'."
         end
 
         sort_input(input, property, order)

lib/jekyll/hooks.rb

@@ -78,8 +78,8 @@ module Jekyll
       }
 
       unless @registry[owner][event]
-        raise NotAvailable, "Invalid hook. #{owner} supports only the " \
+        raise NotAvailable, "Invalid hook. #{owner} supports only the following hooks " \
-          "following hooks #{@registry[owner].keys.inspect}"
+                            "#{@registry[owner].keys.inspect}"
       end
 
       raise Uncallable, "Hooks must respond to :call" unless block.respond_to? :call

lib/jekyll/plugin_manager.rb

@@ -113,9 +113,10 @@ module Jekyll
       pagination_included = (site.config["plugins"] || []).include?("jekyll-paginate") ||
         defined?(Jekyll::Paginate)
       if site.config["paginate"] && !pagination_included
-        Jekyll::Deprecator.deprecation_message "You appear to have pagination " \
+        Jekyll::Deprecator.deprecation_message <<~MSG
-          "turned on, but you haven't included the `jekyll-paginate` gem. " \
+          You appear to have pagination turned on, but you haven't included the `jekyll-paginate`
-          "Ensure you have `plugins: [jekyll-paginate]` in your configuration file."
+          gem. Ensure you have `plugins: [jekyll-paginate]` in your configuration file.
+        MSG
       end
     end
   end

lib/jekyll/renderer.rb

@@ -105,7 +105,7 @@ module Jekyll
         converter.convert output
       rescue StandardError => e
         Jekyll.logger.error "Conversion error:",
-                            "#{converter.class} encountered an error while "\
+                            "#{converter.class} encountered an error while " \
                             "converting '#{document.relative_path}':"
         Jekyll.logger.error("", e.to_s)
         raise e
@@ -179,7 +179,7 @@ module Jekyll
       return unless invalid_layout?(layout)
 
       Jekyll.logger.warn "Build Warning:", "Layout '#{document.data["layout"]}' requested " \
-        "in #{document.relative_path} does not exist."
+                                           "in #{document.relative_path} does not exist."
     end
 
     # Render layout content into document.output

lib/jekyll/site.rb

@@ -328,11 +328,11 @@ module Jekyll
     # Returns
     def relative_permalinks_are_deprecated
       if config["relative_permalinks"]
-        Jekyll.logger.abort_with "Since v3.0, permalinks for pages" \
+        Jekyll.logger.abort_with "Since v3.0, permalinks for pages " \
-                                 " in subfolders must be relative to the" \
+                                 "in subfolders must be relative to the " \
-                                 " site source directory, not the parent" \
+                                 "site source directory, not the parent " \
-                                 " directory. Check https://jekyllrb.com/docs/upgrading/"\
+                                 "directory. Check https://jekyllrb.com/docs/upgrading/ " \
-                                 " for more info."
+                                 "for more info."
       end
     end
 
@@ -536,8 +536,8 @@ module Jekyll
         if config["theme"].is_a?(String)
           Jekyll::Theme.new(config["theme"])
         else
-          Jekyll.logger.warn "Theme:", "value of 'theme' in config should be " \
+          Jekyll.logger.warn "Theme:", "value of 'theme' in config should be String to use " \
-          "String to use gem-based themes, but got #{config["theme"].class}"
+                                       "gem-based themes, but got #{config["theme"].class}"
           nil
         end
     end

lib/jekyll/tags/highlight.rb

@@ -104,8 +104,8 @@ module Jekyll
           "class=\"language-#{@lang.to_s.tr("+", "-")}\"",
           "data-lang=\"#{@lang}\"",
         ].join(" ")
-        "<figure class=\"highlight\"><pre><code #{code_attributes}>"\
+        "<figure class=\"highlight\"><pre><code #{code_attributes}>" \
-        "#{code.chomp}</code></pre></figure>"
+          "#{code.chomp}</code></pre></figure>"
       end
     end
   end

lib/jekyll/tags/include.rb

@@ -179,8 +179,8 @@ module Jekyll
       private
 
       def could_not_locate_message(file, includes_dirs, safe)
-        message = "Could not locate the included file '#{file}' in any of "\
+        message = "Could not locate the included file '#{file}' in any of #{includes_dirs}. " \
-          "#{includes_dirs}. Ensure it exists in one of those directories and"
+                  "Ensure it exists in one of those directories and"
         message + if safe
                     " is not a symlink as those are not allowed in safe mode."
                   else

lib/jekyll/tags/post_url.rb

@@ -86,11 +86,11 @@ module Jekyll
         site.posts.docs.each do |document|
           next unless @post.deprecated_equality document
 
-          Jekyll::Deprecator.deprecation_message "A call to "\
+          Jekyll::Deprecator.deprecation_message(
-            "'{% post_url #{@post.name} %}' did not match " \
+            "A call to '{% post_url #{@post.name} %}' did not match a post using the new " \
-            "a post using the new matching method of checking name " \
+            "matching method of checking name (path-date-slug) equality. Please make sure " \
-            "(path-date-slug) equality. Please make sure that you " \
+            "that you change this tag to match the post's name exactly."
-            "change this tag to match the post's name exactly."
+          )
           return relative_url(document)
         end
 

lib/jekyll/theme.rb

@@ -18,8 +18,8 @@ module Jekyll
       # Otherwise, Jekyll.sanitized path with prepend the unresolved root
       @root ||= File.realpath(gemspec.full_gem_path)
     rescue Errno::ENOENT, Errno::EACCES, Errno::ELOOP
-      raise "Path #{gemspec.full_gem_path} does not exist, is not accessible "\
+      raise "Path #{gemspec.full_gem_path} does not exist, is not accessible or includes " \
-        "or includes a symbolic link loop"
+            "a symbolic link loop"
     end
 
     # The name of theme directory

lib/jekyll/url.rb

@@ -100,7 +100,7 @@ module Jekyll
         winner = pool.find { |key| @placeholders.key?(key) }
         if winner.nil?
           raise NoMethodError,
-                "The URL template doesn't have #{pool.join(" or ")} keys. "\
+                "The URL template doesn't have #{pool.join(" or ")} keys. " \
                 "Check your permalink template!"
         end
 

lib/jekyll/utils/ansi.rb

@@ -1,4 +1,4 @@
-# Frozen-string-literal: true
+# frozen_string_literal: true
 
 module Jekyll
   module Utils

test/helper.rb

@@ -105,8 +105,7 @@ class JekyllUnitTest < Minitest::Test
   end
 
   def mocks_expect(*args)
-    RSpec::Mocks::ExampleMethods::ExpectHost.instance_method(:expect)\
+    RSpec::Mocks::ExampleMethods::ExpectHost.instance_method(:expect).bind(self).call(*args)
-      .bind(self).call(*args)
   end
 
   def before_setup
@@ -166,7 +165,7 @@ class JekyllUnitTest < Minitest::Test
   def directory_with_contents(path)
     FileUtils.rm_rf(path)
     FileUtils.mkdir(path)
-    File.open("#{path}/index.html", "w") { |f| f.write("I was previously generated.") }
+    File.write("#{path}/index.html", "I was previously generated.")
   end
 
   def with_env(key, value)

test/test_commands_serve.rb

@@ -75,9 +75,7 @@ class TestCommandsServe < JekyllUnitTest
       </html>
       HTML
 
-      File.open(File.join(@destination, "hello.html"), "w") do |f|
+      File.write(File.join(@destination, "hello.html"), simple_page)
-        f.write(simple_page)
-      end
       allow(Jekyll::Site).to receive(:new).and_return(site)
     end
 

test/test_doctor_command.rb

@@ -22,6 +22,7 @@ class TestDoctorCommand < JekyllUnitTest
       assert_equal "", output
     end
 
+    # rubocop:disable Layout/LineLength
     should "return warning for pages only differing by case" do
       @site = Site.new(Jekyll.configuration(
                          "source"      => File.join(source_dir, "/_urls_differ_by_case_invalid"),
@@ -32,9 +33,10 @@ class TestDoctorCommand < JekyllUnitTest
         ret = Jekyll::Commands::Doctor.urls_only_differ_by_case(@site)
         assert ret
       end
-      assert_includes output, "Warning: The following URLs only differ by case. "\
+      assert_includes output, "Warning: The following URLs only differ by case. On a case-" \
-      "On a case-insensitive file system one of the URLs will be overwritten by the "\
+                              "insensitive file system one of the URLs will be overwritten by the " \
-      "other: #{dest_dir}/about/index.html, #{dest_dir}/About/index.html"
+                              "other: #{dest_dir}/about/index.html, #{dest_dir}/About/index.html"
     end
+    # rubocop:enable Layout/LineLength
   end
 end

test/test_excerpt.rb

@@ -111,8 +111,7 @@ class TestExcerpt < JekyllUnitTest
     context "#content" do
       context "before render" do
         should "be the first paragraph of the page" do
-          expected = "First paragraph with [link ref][link].\n\n[link]: "\
+          expected = "First paragraph with [link ref][link].\n\n[link]: https://jekyllrb.com/"
-                     "https://jekyllrb.com/"
           assert_equal expected, @excerpt.content
         end
 
@@ -129,7 +128,7 @@ class TestExcerpt < JekyllUnitTest
         end
 
         should "be the first paragraph of the page" do
-          expected = "<p>First paragraph with <a href=\"https://jekyllrb.com/\">link "\
+          expected = "<p>First paragraph with <a href=\"https://jekyllrb.com/\">link " \
                      "ref</a>.</p>\n\n"
           assert_equal expected, @extracted_excerpt.output
         end
@@ -146,7 +145,7 @@ class TestExcerpt < JekyllUnitTest
         end
 
         should "contain all refs at the bottom of the page" do
-          (0..3).each do |i|
+          4.times do |i|
             assert_match "[link_#{i}]: www.example.com/#{i}", @excerpt.content
           end
         end
@@ -159,7 +158,7 @@ class TestExcerpt < JekyllUnitTest
           @rendered_post = @post.dup
           do_render(@rendered_post)
           output = @rendered_post.data["excerpt"].output
-          (0..3).each do |i|
+          4.times do |i|
             assert_includes output, "<a href=\"www.example.com/#{i}\">"
           end
         end

test/test_page_without_a_file.rb

@@ -164,8 +164,8 @@ class TestPageWithoutAFile < JekyllUnitTest
         refute_path_exists(dest_dir("virtual-about", "index.html"))
       end
 
-      should "be processed and written to destination when passed as "\
+      should "be processed and written to destination when passed as an entry in " \
-        "an entry in 'site.pages' array" do
+             "'site.pages' array" do
         @page.content = "{{ site.title }}"
         @page.data["permalink"] = "/virtual-about/"
 

test/test_regenerator.rb

@@ -174,9 +174,7 @@ class TestRegenerator < JekyllUnitTest
       metadata_file = source_dir(".jekyll-metadata")
       @regenerator = Regenerator.new(@site)
 
-      File.open(metadata_file, "w") do |f|
+      File.write(metadata_file, @regenerator.metadata.to_yaml)
-        f.write(@regenerator.metadata.to_yaml)
-      end
 
       @regenerator = Regenerator.new(@site)
       assert_equal File.mtime(@path), @regenerator.metadata[@path]["mtime"]

test/test_site.rb

@@ -621,8 +621,8 @@ class TestSite < JekyllUnitTest
           site = fixture_site("theme" => {})
           assert_nil site.theme
         end
-        expected_msg = "Theme: value of 'theme' in config should be String " \
+        expected_msg = "Theme: value of 'theme' in config should be String to use " \
-          "to use gem-based themes, but got Hash\n"
+                       "gem-based themes, but got Hash\n"
         assert_includes output, expected_msg
       end
 

test/test_tags.rb

@@ -450,10 +450,10 @@ class TestTags < JekyllUnitTest
     end
 
     should "throw a deprecation warning" do
-      deprecation_warning = "       Deprecation: A call to "\
+      deprecation_warning = "       Deprecation: A call to '{% post_url 2008-11-21-nested %}' " \
-        "'{% post_url 2008-11-21-nested %}' did not match a post using the new matching "\
+                            "did not match a post using the new matching method of checking " \
-        "method of checking name (path-date-slug) equality. Please make sure that you "\
+                            "name (path-date-slug) equality. Please make sure that you change " \
-        "change this tag to match the post's name exactly."
+                            "this tag to match the post's name exactly."
       assert_includes Jekyll.logger.messages, deprecation_warning
     end
   end
@@ -693,7 +693,7 @@ class TestTags < JekyllUnitTest
   context "include tag with parameters" do
     context "with symlink'd include" do
       should "not allow symlink includes" do
-        File.open("tmp/pages-test", "w") { |file| file.write("SYMLINK TEST") }
+        File.write("tmp/pages-test", "SYMLINK TEST")
         assert_raises IOError do
           content = <<~CONTENT
             ---
@@ -1142,7 +1142,7 @@ class TestTags < JekyllUnitTest
 
     context "with symlink'd include" do
       should "not allow symlink includes" do
-        File.open("tmp/pages-test", "w") { |file| file.write("SYMLINK TEST") }
+        File.write("tmp/pages-test", "SYMLINK TEST")
         assert_raises IOError do
           content = <<~CONTENT
             ---
@@ -1181,7 +1181,7 @@ class TestTags < JekyllUnitTest
                       "safe"        => true)
         end
         assert_match(
-          "Ensure it exists in one of those directories and is not a symlink "\
+          "Ensure it exists in one of those directories and is not a symlink " \
           "as those are not allowed in safe mode.",
           ex.message
         )

test/test_theme_assets_reader.rb

@@ -14,15 +14,14 @@ class TestThemeAssetsReader < JekyllUnitTest
   def assert_file_with_relative_path(haystack, relative_path)
     assert haystack.any? { |f|
       f.relative_path == relative_path
-    }, "Site should read in the #{relative_path} file, " \
+    }, "Site should read in the #{relative_path} file, but it was not found in #{haystack.inspect}"
-      "but it was not found in #{haystack.inspect}"
   end
 
   def refute_file_with_relative_path(haystack, relative_path)
     refute haystack.any? { |f|
       f.relative_path == relative_path
-    }, "Site should not have read in the #{relative_path} file, " \
+    }, "Site should not have read in the #{relative_path} file, but it was found in " \
-      "but it was found in #{haystack.inspect}"
+       "#{haystack.inspect}"
   end
 
   context "with a valid theme" do
@@ -82,7 +81,7 @@ class TestThemeAssetsReader < JekyllUnitTest
 
       begin
         tmp_dir = Dir.mktmpdir("jekyll-theme-test")
-        File.open(File.join(tmp_dir, "test.txt"), "wb") { |f| f.write "content" }
+        File.binwrite(File.join(tmp_dir, "test.txt"), "content")
 
         theme_dir = File.join(__dir__, "fixtures", "test-theme-symlink")
         File.symlink(tmp_dir, File.join(theme_dir, "assets"))