gistfile1.rb

# Sprockets 2 does this, but Sprockets 3 axed this feature.
namespace :deploy do
  after :normalize_assets, :gzip_assets do
    on release_roles(fetch(:assets_roles)) do
      assets_path = release_path.join('public', fetch(:assets_prefix))
      within assets_path do
        execute :find, ". \\( -name '*.js' -o -name '*.css' \\) -print0 | xargs -0 gzip --keep --best --quiet --force"
      end
    end
  end
end