Rakefile in remain_timer-0.1.0 vs Rakefile in remain_timer-0.2.0

@@ -1,14 +1,19 @@
 require "bundler/gem_tasks"
 require "rake/testtask"
+require "rubocop/rake_task"
+require "prettier"
+require "prettier/rake/task"
 require "yard"
 require "yard/rake/yardoc_task"
 
 Rake::TestTask.new(:test) do |t|
   t.libs << "test"
   t.libs << "lib"
   t.test_files = FileList["test/**/*_test.rb"]
 end
 
 YARD::Rake::YardocTask.new
+RuboCop::RakeTask.new
+Prettier::Rake::Task.new { |t| t.source_files = "{{lib,test}/**/*.rb,*.gemspec,Rakefile}" }
 
-task :default => :test
+task default: :test