Import copied Rakefile from original RDoc repository

lib/rdoc/Rakefile

@@ -0,0 +1,101 @@
+$:.unshift File.expand_path 'lib'
+require 'rdoc/task'
+require 'bundler/gem_tasks'
+require 'rake/testtask'
+
+task :docs    => :generate
+task :test    => [:normal_test, :rubygems_test]
+
+PARSER_FILES = %w[
+  lib/rdoc/rd/block_parser.ry
+  lib/rdoc/rd/inline_parser.ry
+  lib/rdoc/markdown.kpeg
+  lib/rdoc/markdown/literals.kpeg
+]
+
+$rdoc_rakefile = true
+
+task :default => :test
+
+RDoc::Task.new do |doc|
+  doc.main = 'README.rdoc'
+  doc.title = "rdoc #{RDoc::VERSION} Documentation"
+  doc.rdoc_dir = 'html'
+  doc.rdoc_files = FileList.new %w[lib/**/*.rb *.rdoc] - PARSER_FILES
+end
+
+task ghpages: :rdoc do
+  `git checkout gh-pages`
+  require "fileutils"
+  FileUtils.rm_rf "/tmp/html"
+  FileUtils.mv "html", "/tmp"
+  FileUtils.rm_rf "*"
+  FileUtils.cp_r Dir.glob("/tmp/html/*"), "."
+end
+
+Rake::TestTask.new(:normal_test) do |t|
+  t.libs << "test/rdoc"
+  t.verbose = true
+  t.deps = :generate
+  t.test_files = FileList["test/**/test_*.rb"].exclude("test/rdoc/test_rdoc_rubygems_hook.rb")
+end
+
+Rake::TestTask.new(:rubygems_test) do |t|
+  t.libs << "test/rdoc"
+  t.verbose = true
+  t.deps = :generate
+  t.pattern = "test/rdoc/test_rdoc_rubygems_hook.rb"
+end
+
+path = "pkg/#{Bundler::GemHelper.gemspec.full_name}"
+
+package_parser_files = PARSER_FILES.map do |parser_file|
+  name = File.basename(parser_file, File.extname(parser_file))
+  _path = File.dirname(parser_file)
+  package_parser_file = "#{path}/#{name}.rb"
+  parsed_file = "#{_path}/#{name}.rb"
+
+  file package_parser_file => parsed_file # ensure copy runs before racc
+
+  package_parser_file
+end
+
+parsed_files = PARSER_FILES.map do |parser_file|
+  ext = File.extname(parser_file)
+  parsed_file = "#{parser_file.chomp(ext)}.rb"
+
+  file parsed_file => parser_file do |t|
+    puts "Generating #{parsed_file}..."
+    case ext
+    when '.ry' # need racc
+      racc = Gem.bin_path 'racc', 'racc'
+      rb_file = parser_file.gsub(/\.ry\z/, ".rb")
+      ruby "#{racc} -l -o #{rb_file} #{parser_file}"
+      open(rb_file, 'r+') do |f|
+        newtext = "# frozen_string_literal: true\n#{f.read}"
+        f.rewind
+        f.write newtext
+      end
+    when '.kpeg' # need kpeg
+      kpeg = Gem.bin_path 'kpeg', 'kpeg'
+      rb_file = parser_file.gsub(/\.kpeg\z/, ".rb")
+      ruby "#{kpeg} -fsv -o #{rb_file} #{parser_file}"
+    end
+  end
+
+  parsed_file
+end
+
+task "#{path}.gem" => package_parser_files
+desc "Generate all files used racc and kpeg"
+task :generate => parsed_files
+
+begin
+  require 'rubocop/rake_task'
+rescue LoadError
+else
+  RuboCop::RakeTask.new(:rubocop) do |t|
+    t.options = [*parsed_files]
+  end
+  task :build => [:generate, "rubocop:auto_correct"]
+end