Capistrano local asset compilation

capistrano.rb

  namespace :assets do
    desc 'Run the precompile task locally and rsync with shared'
    task :precompile, :roles => :web, :except => { :no_release => true } do
      unless ENV['SKIP_ASSETS']
        if ENV['FORCE_ASSETS'] || releases.length <= 1 || capture("cd #{latest_release} && #{source.local.log(source.next_revision(current_revision))} vendor/assets/ app/assets/ | wc -l").to_i > 0
          system('bundle exec rake assets:precompile')
          puts "syncing assets with shared directory..."
          %x{rsync --recursive --times --rsh=ssh --compress --human-readable --progress public/assets #{user}@#{host}:#{shared_path}}
          system('bundle exec rake assets:clean')
        else
          logger.info "Skipping asset pre-compilation because there were no asset changes"
        end
      end
    end
 end