gistfile1.rb

# Renders all the JST and returns the Javascript TemplateCache
class TemplateCache
  
  def generate(opts={})
    defaults = {:noisy => false}
    options = defaults.merge(opts)
    
    jst_files, templates, errors = [],[],[]
    view_path = Rails::Configuration.new.view_path
    view = ActionView::Base.new(view_path)
    view.extend(ApplicationHelper)
    # find jst files
    jst_files = Dir.glob(RAILS_ROOT + "/app/views/jst/**/*.jst")
    
    # read templates
    jst_files.each do |file|
      open file do |f|
        template = view.render(:file => file.gsub!(/^.*\/views\//,''))
        template_sections = template.split("__END__")  
        template_sections.each do |t|
          if t.match(/__TEMPLATE_(.*)__/)
            template_name = t.match(/__TEMPLATE_(.*)__/)[1]
            puts template_name if options[:noisy]
            template = t.gsub(/\s*__TEMPLATE_(.*)__|__END__|\n/,'')
            # Replace whitespace between tags
            template.gsub!(/>\s+</, '><')
            template = template_name + " : '" + template.gsub(/[']/, '\\\\\'') + "',"
            templates << template
          end
        end
      end
    end
    
    cache = '{' << templates.join("\n  ").chomp(',') << "\n" << '}'
    return cache
  end
  
end