Exemple #1
0
static gboolean
dump_runtime (GFile *root, GCancellable *cancellable, GError **error)
{
  int i;

  g_autoptr(write_archive_t) archive = NULL;
  g_autoptr(GFile) files = g_file_get_child (root, "files");

  archive = archive_write_new ();
  if (archive == NULL)
    return xdg_app_fail (error, "Can't allocate archive");

  if (archive_write_set_format_gnutar (archive) < ARCHIVE_OK)
    return xdg_app_fail (error, "Can't set tar format");

  if (archive_write_open_FILE (archive, stdout) < ARCHIVE_OK)
    return xdg_app_fail (error, "can't open stdout");

  for (i = 0; i < G_N_ELEMENTS(extra_dirs); i++)
    {
      g_autoptr(archive_entry_t) entry = archive_entry_new2 (archive);

      archive_entry_set_pathname (entry, extra_dirs[i]);
      archive_entry_set_uid(entry, 0);
      archive_entry_set_gid(entry, 0);
      archive_entry_set_perm(entry, 0755);
      archive_entry_set_mtime(entry, 0, 0);
      archive_entry_set_filetype (entry, AE_IFDIR);

      if (archive_write_header (archive, entry) < ARCHIVE_OK)
        return xdg_app_fail (error, "Can't write tar header");
    }

  for (i = 0; i < G_N_ELEMENTS(extra_symlinks); i++)
    {
      g_autoptr(archive_entry_t) entry = NULL;

      if (g_str_has_prefix (extra_symlinks[i].target, "usr/"))
        {
          g_autoptr(GFile) dest = g_file_resolve_relative_path (files, extra_symlinks[i].target + 4);

          if (!g_file_query_exists (dest, cancellable))
            continue;
        }

      entry = archive_entry_new2 (archive);

      archive_entry_set_pathname (entry, extra_symlinks[i].path);
      archive_entry_set_uid(entry, 0);
      archive_entry_set_gid(entry, 0);
      archive_entry_set_perm(entry, 0755);
      archive_entry_set_mtime(entry, 0, 0);
      archive_entry_set_filetype (entry, AE_IFLNK);
      archive_entry_set_symlink (entry, extra_symlinks[i].target);

      if (archive_write_header (archive, entry) < ARCHIVE_OK)
        return xdg_app_fail (error, "Can't write tar header");
    }

  if (!dump_files (files, archive, cancellable, "usr", error))
    return FALSE;

  if (archive_write_close (archive) < ARCHIVE_OK)
    return xdg_app_fail (error, "can't close archive");

  return TRUE;
}
Exemple #2
0
gboolean
ostree_builtin_export (int argc, char **argv, GCancellable *cancellable, GError **error)
{
  GOptionContext *context;
  glnx_unref_object OstreeRepo *repo = NULL;
  gboolean ret = FALSE;
  const char *rev;
  g_autoptr(GFile) root = NULL;
  g_autoptr(GFile) subtree = NULL;
  g_autofree char *commit = NULL;
  g_autoptr(GVariant) commit_data = NULL;
  struct archive *a;
  OstreeRepoExportArchiveOptions opts = { 0, };

  context = g_option_context_new ("COMMIT - Stream COMMIT to stdout in tar format");

  if (!ostree_option_context_parse (context, options, &argc, &argv, OSTREE_BUILTIN_FLAG_NONE, &repo, cancellable, error))
    goto out;

#ifdef HAVE_LIBARCHIVE  

  if (argc <= 1)
    {
      ot_util_usage_error (context, "A COMMIT argument is required", error);
      goto out;
    }
  rev = argv[1];

  a = archive_write_new ();
  /* Yes, this is hardcoded for now.  There is
   * archive_write_set_format_filter_by_ext() but it's fairly magic.
   * Many programs have support now for GNU tar, so should be a good
   * default.  I also don't want to lock us into everything libarchive
   * supports.
   */
  if (archive_write_set_format_gnutar (a) != ARCHIVE_OK)
    {
      propagate_libarchive_error (error, a);
      goto out;
    }
  if (archive_write_add_filter_none (a) != ARCHIVE_OK)
    {
      propagate_libarchive_error (error, a);
      goto out;
    }
  if (opt_output_path)
    {
      if (archive_write_open_filename (a, opt_output_path) != ARCHIVE_OK)
        {
          propagate_libarchive_error (error, a);
          goto out;
        }
    }
  else
    {
      if (archive_write_open_FILE (a, stdout) != ARCHIVE_OK)
        {
          propagate_libarchive_error (error, a);
          goto out;
        }
    }

  if (opt_no_xattrs)
    opts.disable_xattrs = TRUE;

  if (!ostree_repo_read_commit (repo, rev, &root, &commit, cancellable, error))
    goto out;

  if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT, commit, &commit_data, error))
    goto out;

  opts.timestamp_secs = ostree_commit_get_timestamp (commit_data);

  if (opt_subpath)
    subtree = g_file_resolve_relative_path (root, opt_subpath);
  else
    subtree = g_object_ref (root);

  opts.path_prefix = opt_prefix;

  if (!ostree_repo_export_tree_to_archive (repo, &opts, (OstreeRepoFile*)subtree, a,
                                           cancellable, error))
    goto out;

  if (archive_write_close (a) != ARCHIVE_OK)
    {
      propagate_libarchive_error (error, a);
      goto out;
    }

#else
  g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
               "This version of ostree is not compiled with libarchive support");
  goto out;
#endif  
  
  ret = TRUE;
 out:
  if (context)
    g_option_context_free (context);
  return ret;
}