#require 'plist'
#require 'ox'
#require 'rexml/document'
require 'nokogiri'

class RewritePlistFile
#  def self.with_prefix(prefix, original)
#    v = Plist::parse_xml(original)
#    files = v['files']
#    v['files'] = files.map{|i|File.join(prefix, i)}
#    v.to_plist()
  #  end
#  def self.with_prefix(prefix, original)
#    doc = REXML::Document.new(original)
#    array_element = REXML::XPath.first(doc, "//key[text()='files']/following-sibling::array")
#    if array_element
#      array_element.elements.each do |s|
#        s.text = File.join(prefix, s.text)
#      end
#      res = StringIO.new
#      formatter = REXML::Formatters::Pretty.new(2)
#      formatter.compact = true
#      formatter.write(doc, res)
#      return res.string
#    end
#    return original
  #  end
  def self.with_prefix(prefix, original)
    doc = Nokogiri::XML(original)
    array_element = doc.xpath("//key[text()='files']/following-sibling::array/string")
    array_element.each do |e|
      e.content = File.join(prefix, e.content)
    end
    return doc.to_xml()
  end
end