Rakefile in git-duet-0.1.3 vs Rakefile in git-duet-0.2.0

@@ -1,10 +1,16 @@
 #!/usr/bin/env rake
+# vim:fileencoding=utf-8
 require "bundler/gem_tasks"
 
 require 'rspec/core/rake_task'
 
+desc 'Run rubocop'
+task :rubocop do
+  sh('rubocop --format simple') { |r, _| r || abort }
+end
+
 RSpec::Core::RakeTask.new(:spec) do |t|
   t.rspec_opts = '--format documentation'
 end
 
-task :default => :spec
+task :default => [:rubocop, :spec]