sprocketize.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'Sprockets'
require 'Jsmin'
 
MINFILE = 'app/webroot/js/build-min.js'
CONCATFILE = 'app/webroot/js/concat.js'
 
secretary = Sprockets::Secretary.new(
  :asset_root => 'app/webroot',
  :load_path => ['app/webroot/js', 'plugins/*/vendors/js/**', 'app/plugins/*/vendors/js/**'],
  :source_files => ['app/webroot/js/*.js', 'plugins/*/vendors/js/**/*.js', 'app/plugins/*/vendors/js/**/*.js'],
  :strip_comments => true
)
 
# generate the concatenation object
concatenation = secretary.concatenation
 
# write to disk
gluedFiles = concatenation.to_s
concatenation.save_to(CONCATFILE)
 
# Run through JSMin
File.open(MINFILE, 'w') { |file| file.write(JSMin.minify(gluedFiles)) }

This is tailored for a CakePHP project, but easily adaptable.

Load all javascript files from the webroot and plugins into one application file--minified and non-minified versions. Could get rather beefy if the project has lots of js. A better approach would be hand-rolled js files that include dependencies as needed that can make up an application javascript file. This script would be easy to adapt to move files to CDN.

Plugin paths to js files was updated in CakePHP 1.3. This example is for CakePHP 1.2