# File lib/travis/client/repository.rb, line 132
      def job(number)
        build_number = number.to_s[/^\d+/] or return nil
        build        = build(build_number) or return nil
        job          = build.jobs.detect { |j| j.number == number } if number != build_number
        job        ||= build.jobs.first if build and build.jobs.size == 1
        job
      end