require 'rake'require 'rake/packagetask'PROTOTYPE_ROOT     = File.expand_path(File.dirname(__FILE__))PROTOTYPE_SRC_DIR  = File.join(PROTOTYPE_ROOT, 'src')PROTOTYPE_DIST_DIR = File.join(PROTOTYPE_ROOT, 'dist')PROTOTYPE_PKG_DIR  = File.join(PROTOTYPE_ROOT, 'pkg')PROTOTYPE_VERSION  = '1.4.0'task :default => [:dist, :package, :clean_package_source]task :dist do  $:.unshift File.join(PROTOTYPE_ROOT, 'lib')  require 'protodoc'    Dir.chdir(PROTOTYPE_SRC_DIR) do    File.open(File.join(PROTOTYPE_DIST_DIR, 'prototype.js'), 'w+') do |dist|      dist << Protodoc::Preprocessor.new('prototype.js')    end  endendRake::PackageTask.new('prototype', PROTOTYPE_VERSION) do |package|  package.need_tar_gz = true  package.package_dir = PROTOTYPE_PKG_DIR  package.package_files.include(    '[A-Z]*',    'dist/prototype.js',    'lib/**',    'src/**',    'test/**'  )endtask :test => [:dist, :test_units]require 'test/lib/jstest'desc "Runs all the JavaScript unit tests and collects the results"JavaScriptTestTask.new(:test_units) do |t|  t.mount("/dist")  t.mount("/test")    t.run("/test/unit/enumerable.html")    t.browser(:safari)endtask :clean_package_source do  rm_rf File.join(PROTOTYPE_PKG_DIR, "prototype-#{PROTOTYPE_VERSION}")end