Merge "releasetools: Work around the issue with mke2fs created images."

      diff_total = len(diff_queue)

      patches = [None] * diff_total

      error_messages = []

      warning_messages = []

      if sys.stdout.isatty():

        global diff_done

        diff_done = 0

            with open(tgt_file, "wb") as fd:

              self.tgt.WriteRangeDataToFd(tgt_ranges, fd)

          message = []

          try:

            patch = compute_patch(src_file, tgt_file, imgdiff)

          except ValueError as e:

            with lock:

              error_messages.append(

            message.append(

                "Failed to generate %s for %s: tgt=%s, src=%s:\n%s" % (

                "imgdiff" if imgdiff else "bsdiff",

                xf.tgt_name if xf.tgt_name == xf.src_name else

                    xf.tgt_name + " (from " + xf.src_name + ")",

                xf.tgt_ranges, xf.src_ranges, e.message))

            # TODO(b/68016761): Better handle the holes in mke2fs created images.

            if imgdiff:

              try:

                patch = compute_patch(src_file, tgt_file, imgdiff=False)

                message.append(

                    "Fell back and generated with bsdiff instead for %s" % (

                    xf.tgt_name,))

                with lock:

                  warning_messages.extend(message)

                del message[:]

              except ValueError as e:

                message.append(

                    "Also failed to generate with bsdiff for %s:\n%s" % (

                    xf.tgt_name, e.message))

          if message:

            with lock:

              error_messages.extend(message)

          with lock:

            patches[patch_index] = (xf_index, patch)

      if sys.stdout.isatty():

        print('\n')

      if warning_messages:

        print('WARNING:')

        print('\n'.join(warning_messages))

        print('\n\n\n')

      if error_messages:

        print('ERROR:')

        print('\n'.join(error_messages))

        print('\n\n\n')

        sys.exit(1)

    else:

      patches = []