# File lib/rake/gempackagetask.rb, line 73
73:     def define
74:       super
75:       task :package => [:gem]
76:       desc "Build the gem file #{gem_file}"
77:       task :gem => ["#{package_dir}/#{gem_file}"]
78:       file "#{package_dir}/#{gem_file}" => [package_dir] + @gem_spec.files do
79:         when_writing("Creating GEM") {
80:           Gem::Builder.new(gem_spec).build
81:           verbose(true) {
82:             mv gem_file, "#{package_dir}/#{gem_file}"
83:           }
84:         }
85:       end
86:     end