HTML COMPRESSOR

html_compressor.rb

class Htmlcompressor < Nanoc3::Filter
  identifier :htmlcompressor
  type :text => :binary

  def run(content, params={})

    case @item[:extension]

    when "xml.erb"
      cmd = "htmlcompressor --type xml -o #{output_filename}"
    when "html.erb", "md"
      cmd = "htmlcompressor --type html -o #{output_filename} --remove-intertag-spaces --remove-quotes --simple-doctype --remove-style-attr --remove-link-attr --remove-script-attr --remove-form-attr --remove-input-attr --simple-bool-attr --remove-js-protocol --remove-http-protocol --remove-https-protocol --remove-surrounding-spaces --compress-js --compress-css"
    else
      raise "err"
    end

    IO.popen(cmd, 'w') { |f| f.write(content) }
    raise "htmlcompressor exited with #{$?} for '#{cmd}'" unless $? == 0

  end
end

brew install htmlcompressor => 🍺