Drop support for older versions of Rouge (#6978)

Merge pull request 6978

.travis.yml

@@ -16,8 +16,6 @@ matrix:
       env: TEST_SUITE=fmt
     - rvm: *ruby1
       env: TEST_SUITE=default-site
-    - rvm: *ruby1
-      env: ROUGE_VERSION=1.11.1 # runs everything with this version
   exclude:
     - rvm: *jruby
       env: TEST_SUITE=cucumber

Gemfile

@@ -5,8 +5,6 @@ gemspec :name => "jekyll"
 
 gem "rake", "~> 12.0"
 
-gem "rouge", ENV["ROUGE"] if ENV["ROUGE"]
-
 group :development do
   gem "launchy", "~> 2.3"
   gem "pry"

jekyll.gemspec

@@ -40,7 +40,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency("liquid",                "~> 4.0")
   s.add_runtime_dependency("mercenary",             "~> 0.3.3")
   s.add_runtime_dependency("pathutil",              "~> 0.9")
-  rouge_versions = ENV["ROUGE_VERSION"] ? ["~> #{ENV["ROUGE_VERSION"]}"] : [">= 1.7", "< 4"]
-  s.add_runtime_dependency("rouge",                 *rouge_versions)
+  s.add_runtime_dependency("rouge",                 "~> 3.0")
   s.add_runtime_dependency("safe_yaml",             "~> 1.0")
 end

lib/jekyll/converters/markdown/redcarpet_parser.rb

@@ -57,7 +57,8 @@ class Jekyll::Converters::Markdown::RedcarpetParser
 
     protected
     def rouge_formatter(_lexer)
-      Jekyll::Utils::Rouge.html_formatter(:wrap => false)
+      require "rouge"
+      ::Rouge::Formatters::HTMLLegacy.new(:wrap => false)
     end
   end
 

lib/jekyll/tags/highlight.rb

@@ -112,7 +112,8 @@ MSG
       end
 
       def render_rouge(code)
-        formatter = Jekyll::Utils::Rouge.html_formatter(
+        require "rouge"
+        formatter = ::Rouge::Formatters::HTMLLegacy.new(
           :line_numbers => @highlight_options[:linenos],
           :wrap         => false,
           :css_class    => "highlight",

lib/jekyll/utils.rb

@@ -7,7 +7,6 @@ module Jekyll
     autoload :Exec, "jekyll/utils/exec"
     autoload :Internet, "jekyll/utils/internet"
     autoload :Platforms, "jekyll/utils/platforms"
-    autoload :Rouge, "jekyll/utils/rouge"
     autoload :ThreadEvent, "jekyll/utils/thread_event"
     autoload :WinTZ, "jekyll/utils/win_tz"
 

lib/jekyll/utils/rouge.rb

@@ -1,22 +0,0 @@
-# frozen_string_literal: true
-
-Jekyll::External.require_with_graceful_fail("rouge")
-
-module Jekyll
-  module Utils
-    module Rouge
-
-      def self.html_formatter(*args)
-        if old_api?
-          ::Rouge::Formatters::HTML.new(*args)
-        else
-          ::Rouge::Formatters::HTMLLegacy.new(*args)
-        end
-      end
-
-      def self.old_api?
-        ::Rouge.version.to_s < "2"
-      end
-    end
-  end
-end

test/test_kramdown.rb

@@ -20,7 +20,7 @@ class TestKramdown < JekyllUnitTest
             "bold_every" => 8,
             "css"        => :class,
             "css_class"  => "highlight",
-            "formatter"  => Jekyll::Utils::Rouge.html_formatter.class,
+            "formatter"  => Rouge::Formatters::HTMLLegacy,
           },
         },
       }
@@ -91,8 +91,7 @@ class TestKramdown < JekyllUnitTest
         puts "Hello World"
         ~~~
       MARKDOWN
-      div_highlight = ""
-      div_highlight = ">div.highlight" unless Utils::Rouge.old_api?
+      div_highlight = ">div.highlight"
       selector = "div.highlighter-rouge#{div_highlight}>pre.highlight>code"
       refute result.css(selector).empty?
     end

test/test_tags.rb

@@ -323,8 +323,7 @@ EOS
         )
       end
 
-      should "render markdown with rouge 2 with line numbers" do
-        skip "Skipped because using an older version of Rouge" if Utils::Rouge.old_api?
+      should "render markdown with rouge with line numbers" do
         assert_match(
           %(<table class="rouge-table"><tbody>) +
             %(<tr><td class="gutter gl">) +
@@ -334,18 +333,6 @@ EOS
           @result
         )
       end
-
-      should "render markdown with rouge 1 with line numbers" do
-        skip "Skipped because using a newer version of Rouge" unless Utils::Rouge.old_api?
-        assert_match(
-          %(<table style="border-spacing: 0"><tbody>) +
-            %(<tr><td class="gutter gl" style="text-align: right">) +
-            %(<pre class="lineno">1</pre></td>) +
-            %(<td class="code"><pre>test<span class="w">\n</span></pre></td></tr>) +
-            %(</tbody></table>),
-          @result
-        )
-      end
     end
 
     context "post content has raw tag" do
@@ -364,18 +351,7 @@ CONTENT
         create_post(content)
       end
 
-      should "render markdown with rouge 1" do
-        skip "Skipped because using a newer version of Rouge" unless Utils::Rouge.old_api?
-
-        assert_match(
-          %(<div class="language-liquid highlighter-rouge"><pre class="highlight"><code>),
-          @result
-        )
-      end
-
-      should "render markdown with rouge 2" do
-        skip "Skipped because using an older version of Rouge" if Utils::Rouge.old_api?
-
+      should "render markdown with rouge" do
         assert_match(
           %(<div class="language-liquid highlighter-rouge">) +
             %(<div class="highlight"><pre class="highlight"><code>),
@@ -471,24 +447,12 @@ This should not be highlighted, right?
 EOS
       end
 
-      should "should stop highlighting at boundary with rouge 2" do
-        skip "Skipped because using an older version of Rouge" if Utils::Rouge.old_api?
+      should "should stop highlighting at boundary with rouge" do
         expected = <<-EOS
 <p>This is not yet highlighted</p>\n
 <figure class="highlight"><pre><code class="language-php" data-lang="php"><table class="rouge-table"><tbody><tr><td class="gutter gl"><pre class="lineno">1
 </pre></td><td class="code"><pre><span class="nx">test</span></pre></td></tr></tbody></table></code></pre></figure>\n
 <p>This should not be highlighted, right?</p>
-EOS
-        assert_match(expected, @result)
-      end
-
-      should "should stop highlighting at boundary with rouge 1" do
-        skip "Skipped because using a newer version of Rouge" unless Utils::Rouge.old_api?
-        expected = <<-EOS
-<p>This is not yet highlighted</p>\n
-<figure class="highlight"><pre><code class="language-php" data-lang="php"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre>test<span class="w">
-</span></pre></td></tr></tbody></table></code></pre></figure>\n
-<p>This should not be highlighted, right?</p>
 EOS
         assert_match(expected, @result)
       end