Rakefile in bagit-0.4.2 vs Rakefile in bagit-0.4.3

@@ -3,14 +3,20 @@
 Bundler.setup(:default, :development, :test)
 
 require 'rake'
 require 'rdoc/task'
 require 'rspec/core/rake_task'
+require 'rubocop/rake_task'
 
 Bundler::GemHelper.install_tasks
 
+desc 'Run rubocop'
+task :rubocop do
+  RuboCop::RakeTask.new
+end
+
 RSpec::Core::RakeTask.new do |t|
   t.pattern = 'spec/**/*_spec.rb'
-  t.rspec_opts = %w(--format  documentation --color)
+  t.rspec_opts = %w[--format documentation --color]
 end
 
-task :default => [:spec]
+task default: [:rubocop, :spec]