Rakefile in ruby-graphviz-1.2.4 vs Rakefile in ruby-graphviz-1.2.5

@@ -3,45 +3,25 @@
 
 require 'rubygems'
 require 'rake/clean'
 require 'bundler'
 require 'rubygems/package_task'
-require 'rdoc/task'
 require 'rake/testtask'
 require 'fileutils'
 require 'open-uri'
+require 'yard'
 include FileUtils
 
 CLEAN.include ['**/.*.sw?', '*.gem', '.config', 'test/test.log']
-RDOC_OPTS = ['--quiet', '--title', "Ruby/GraphViz, the Documentation",
-  "--opname", "index.html",
-  "--line-numbers",
-  "--main", "README.rdoc"]
 
 desc "Packages up Ruby/GraphViz."
 task :default => [:test, :package]
 task :package => [:clean]
 
-task :doc => :rdoc
+task :doc => :yard
 
-RDoc::Task.new do |rdoc|
-  rdoc.rdoc_dir = 'doc/rdoc'
-  rdoc.options += RDOC_OPTS
-  rdoc.main = "README.rdoc"
-  rdoc.title = "Ruby/GraphViz, the Documentation"
-  rdoc.rdoc_files.add ['README.rdoc', 'CHANGELOG.rdoc', 'AUTHORS.rdoc', 'COPYING.rdoc',
-    'lib/graphviz.rb',
-    'lib/graphviz/node.rb',
-    'lib/graphviz/edge.rb',
-    'lib/graphviz/constants.rb',
-    'lib/graphviz/xml.rb',
-    'lib/graphviz/graphml.rb',
-    'lib/graphviz/family_tree.rb',
-    'lib/graphviz/family_tree/couple.rb',
-    'lib/graphviz/family_tree/generation.rb',
-    'lib/graphviz/family_tree/person.rb',
-    'lib/graphviz/family_tree/sibling.rb']
+YARD::Rake::YardocTask.new do |t|
 end
 
 Rake::TestTask.new(:test) do |t|
   t.libs << 'lib' << 'test'
   t.verbose = true
@@ -65,7 +45,26 @@
   else
     puts "Can't generate man pages with JRuby"
   end
 end
 
+namespace :changelog do
+  desc "Update CHANGELOG"
+  task :update do
+    require "github_changelog_generator"
+    GitHubChangelogGenerator::ChangelogGenerator.new.run
+  end
+end
+
 Bundler::GemHelper.install_tasks
 
+namespace :contributors do
+  desc "Install all-contributors-cli"
+  task :install do
+    sh "npm install --save-dev all-contributors-cli"
+  end
+
+  desc "Run"
+  task :run do
+    sh "npx all-contributors"
+  end
+end