asciidoctor-epub3.gemspec in asciidoctor-epub3-1.5.0.alpha.14 vs asciidoctor-epub3.gemspec in asciidoctor-epub3-1.5.0.alpha.15

@@ -22,17 +22,20 @@
   files = begin
     (result = Open3.popen3('git ls-files -z') {|_, out| out.read }.split %(\0)).empty? ? Dir['**/*'] : result
   rescue
     Dir['**/*']
   end
-  s.files = files.grep %r/^(?:(?:data\/(?:fonts|images|styles)|lib)\/.+|Gemfile|Rakefile|(?:CHANGELOG|LICENSE|NOTICE|README)\.adoc|\.yardopts|#{s.name}\.gemspec)$/
+  s.files = files.grep %r/^(?:(?:data\/(?:fonts|images|styles)|lib)\/.+|Gemfile|Rakefile|LICENSE|(?:CHANGELOG|NOTICE|README)\.adoc|\.yardopts|#{s.name}\.gemspec)$/
   s.executables = %w(asciidoctor-epub3 adb-push-ebook)
   s.test_files = s.files.grep(/^(?:test|spec|feature)\/.*$/)
 
   s.require_paths = ['lib']
 
   s.add_development_dependency 'asciidoctor-diagram', '>= 1.5.0', '< 3.0.0'
+  s.add_development_dependency 'coderay', '~> 1.1.0'
+  s.add_development_dependency 'pygments.rb', '~> 1.2.0'
   s.add_development_dependency 'rake', '~> 13.0.0'
+  s.add_development_dependency 'rouge', '~> 3.0'
   s.add_development_dependency 'rspec', '~> 3.9.0'
   s.add_development_dependency 'rubocop', '~> 0.80.0'
   s.add_development_dependency 'rubocop-rspec', '~> 1.38.0'
 
   s.add_runtime_dependency 'asciidoctor', '>= 1.5.6', '< 3.0.0'