require 'fileutils'
rubyzip_dir_path = Dir.glob("**/rubyzip-*/").first

Dir.mkdir 'jar_backup'

$LOAD_PATH.unshift(rubyzip_dir_path + "/lib")
require "zip"
Dir.glob(["**/*/logstash-input-tcp-*.jar", "**/*/log4j-core*.jar"]).each do |zip|
  puts "Backing up \"#{zip}\" to \"jar_backup\""
  FileUtils.cp(zip, "jar_backup")
  print "Removing JndiLookup.class from #{zip}.."
  Zip::File.open(zip, create: true) do |zipfile|
    zipfile.remove("org/apache/logging/log4j/core/lookup/JndiLookup.class") rescue nil
    puts "done."
  end
end