if ENV['COVERAGE'] == "1"

  SimpleCov.start do
    add_filter "/test/"
    add_filter "/bin/"
    add_filter "/scripts/"
    add_filter "/tmp/"
    add_filter "/vendor/"
    add_filter "/spec/"
  end

  all_files = Dir['**/*.rb']
  base_result = {}
  all_files.each do |file|
    absolute = File::expand_path(file)
    lines = File.readlines(absolute, :encoding => 'UTF-8')
    base_result[absolute] = lines.map do |l|
      l.encode!('UTF-16', 'UTF-8', :invalid => :replace, :replace => '')
      l.encode!('UTF-8', 'UTF-16')
      l.strip!
      l.empty? || l =~ /^end$/ || l[0] == '#' ? nil : 0
    end
  end

  SimpleCov.at_exit do
    coverage_result = Coverage.result
    covered_files = coverage_result.keys
    covered_files.each do |covered_file|
      base_result.delete(covered_file)
    end
    merged = SimpleCov::Result.new(coverage_result).original_result.merge_resultset(base_result)
    result = SimpleCov::Result.new(merged)
    result.format!
  end

end