Rakefile in prawn-1.0.0 vs Rakefile in prawn-1.1.0

@@ -3,12 +3,13 @@
 
 require 'rake'
 require 'rspec/core/rake_task'
 require 'yard'
 require 'rubygems/package_task'
+require 'rubocop/rake_task'
 
-task :default => [:spec]
+task :default => [:rubocop, :spec]
 
 desc "Run all rspec files"
 RSpec::Core::RakeTask.new("spec") do |c|
   c.rspec_opts = "-t ~unresolved"
 end
@@ -29,11 +30,11 @@
 
 desc "Generate the 'Prawn by Example' manual"
 task :manual do
   puts "Building manual..."
   require File.expand_path(File.join(File.dirname(__FILE__),
-    %w[manual manual manual]))
+    %w[manual contents]))
   puts "The Prawn manual is available at manual.pdf. Happy Prawning!"
 end
 
 spec = Gem::Specification.load "prawn.gemspec"
 Gem::PackageTask.new(spec) do |pkg|
@@ -50,5 +51,6 @@
 
   ARGV.clear
   IRB.start
 end
 
+Rubocop::RakeTask.new