/*

 * Copyright (C) 2013 Colin Walters <walters@verbum.org>

 *

 * SPDX-License-Identifier: LGPL-2.0+

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#include "config.h"

#include "ostree-rollsum.h"

#include "libglnx.h"

int

main (int argc, char **argv)

{

  g_autoptr(GError) local_error = NULL;

  GError **error = &local_error;

  GBytes *from_bytes = NULL;

  GBytes *to_bytes = NULL;

  const char *from_path;

  const char *to_path;

  OstreeRollsumMatches *matches;

  GMappedFile *mfile;

  g_setenv ("GIO_USE_VFS", "local", TRUE);

  if (argc < 3)

    return 1;

  from_path = argv[1];

  to_path = argv[2];

  mfile = g_mapped_file_new (from_path, FALSE, error);

  if (!mfile)

    goto out;

  from_bytes = g_mapped_file_get_bytes (mfile);

  g_mapped_file_unref (mfile);

  mfile = g_mapped_file_new (to_path, FALSE, error);

  if (!mfile)

    goto out;

  to_bytes = g_mapped_file_get_bytes (mfile);

  g_mapped_file_unref (mfile);

  matches = _ostree_compute_rollsum_matches (from_bytes, to_bytes);

  g_printerr ("rollsum crcs=%u bufs=%u total=%u matchsize=%llu\n",

              matches->crcmatches,

              matches->bufmatches,

              matches->total, (unsigned long long)matches->match_size);

 out:

  if (local_error)

    {

      g_printerr ("%s\n", local_error->message);

      return 1;

    }

  return 0;

}