You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: geoserver.rb
    path of file: ./repos/homebrew-core/Formula/g
    
    the code of the file until where you have to start completion: class Geoserver < Formula
  desc "Java server to share and edit geospatial data"
  homepage "https://geoserver.org/"
  url "https://downloads.sourceforge.net/project/geoser
    
  def install
    libexec.install Dir["*"]
    (bin/"geoserver").write <<~EOS
      #!/bin/sh
      if [ -z "$1" ]; then
        echo "Usage: $ geoserver path/to/data/dir"
      else
        cd "#{libexec}" && java -DGEOSERVER_DATA_DIR=$1 -jar start.jar
      fi
    EOS
  end