gistfile1.rb

# Rails doesn't have a way to pre-generate javascript cache files
# This is lifted directly from rails ..
def write_asset_file_contents(joined_asset_path, asset_paths)
  unless file_exist?(joined_asset_path)
    FileUtils.mkdir_p(File.dirname(joined_asset_path))
    File.open(joined_asset_path, "w+") { |cache| cache.write(join_asset_file_contents(asset_paths)) }
  end
end

namespace :javascript do
  desc "Generate cached javascript files"
  task :regenerate, :roles => :app, :primary => true do
    javascripts_dir = "#{release_path}/public/javascripts"
    app_version = `cat #{release_path}/app_version`.match(/(\d+)/)[1]

    cache_destination = File.join(javascripts_dir, "cache/all_#{app_version}")
    source_files = ['prototype', 'effects', 'dragdrop', 'controls', 'application'].collect { |name| File.join(javascripts_dir, "#{name}.js") }

    write_asset_file_contents cache_destination, source_files
  end
end