My mogenerator rake task

gistfile1.rb

desc 'Use Mogenerator to create Core Data models'
task :mogen do
	`which mogenerator`
	unless $?.success?
		fail "This project requires mogenerator. See installation instructions"\
		" at http://rentzsch.github.io/mogenerator/"
	end
	cmd = "mogenerator --template-var arc=true "\
		              "--model My_Project/Model.xcdatamodeld/Model.xcdatamodel/ "\
				      "--output-dir My_Project/Model/"
	puts `#{cmd}`
end