xml validation with nokogiri

xmlvalidate.rb

#!/usr/bin/env ruby
require 'nokogiri'
require 'find'

class XMLValidate
  class << self
    def run path
      files = 0
      failed_files = 0
      Find.find path do |file|
        next unless file =~ /\.xml$/
        failed_files += 1 unless xml_validate file
        files += 1
      end

      puts "#{files} validated, #{failed_files} failed."
      puts "Done."
    end

    def xml_validate file
      doc = Nokogiri::XML.parse(
        File.read(file), 
        nil, 
        nil, 
        Nokogiri::XML::ParseOptions::DTDVALID
      )
      true
    rescue Nokogiri::XML::SyntaxError => e
      puts "#{file}: #{e}"
      false
    end
  end
end

path = ARGV[0]
unless path and File.directory?(path)
  puts "Usage: ruby #{__FILE__} /path/to/xml/directory"
  exit 1
end

XMLValidate.run path