Beispiel #1
0
static gboolean
delete_commit (OstreeRepo *repo, const char *commit_to_delete, GCancellable *cancellable, GError **error)
{
  g_autoptr(GHashTable) refs = NULL;
  GHashTableIter hashiter;
  gpointer hashkey, hashvalue;
  gboolean ret = FALSE;

  if (!ostree_repo_list_refs (repo, NULL, &refs, cancellable, error))
    goto out;

  g_hash_table_iter_init (&hashiter, refs);
  while (g_hash_table_iter_next (&hashiter, &hashkey, &hashvalue))
    {
      const char *ref = hashkey;
      const char *commit = hashvalue;
      if (g_strcmp0 (commit_to_delete, commit) == 0)
        {
          g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                       "Commit '%s' is referenced by '%s'", commit_to_delete, ref);
          goto out;
        }
    }

  if (!ot_enable_tombstone_commits (repo, error))
    goto out;

  if (!ostree_repo_delete_object (repo, OSTREE_OBJECT_TYPE_COMMIT, commit_to_delete, cancellable, error))
    goto out;

  ret = TRUE;

 out:
  return ret;
}
Beispiel #2
0
/**
 * ostree_repo_traverse_reachable_refs:
 * @self: Repo
 * @depth: Depth of traversal
 * @reachable: (element-type GVariant GVariant): Set of reachable objects (will be modified)
 * @cancellable: Cancellable
 * @error: Error
 *
 * Add all commit objects directly reachable via a ref to @reachable.
 *
 * Locking: shared
 * Since: 2018.6
 */
gboolean
ostree_repo_traverse_reachable_refs (OstreeRepo *self,
                                     guint       depth,
                                     GHashTable *reachable,
                                     GCancellable *cancellable,
                                     GError      **error)
{
  g_autoptr(OstreeRepoAutoLock) lock =
    _ostree_repo_auto_lock_push (self, OSTREE_REPO_LOCK_SHARED, cancellable, error);
  if (!lock)
    return FALSE;

  /* Ignoring collections. */
  g_autoptr(GHashTable) all_refs = NULL;  /* (element-type utf8 utf8) */

  if (!ostree_repo_list_refs (self, NULL, &all_refs,
                              cancellable, error))
    return FALSE;

  GLNX_HASH_TABLE_FOREACH_V (all_refs, const char*, checksum)
    {
      g_debug ("Finding objects to keep for commit %s", checksum);
      if (!ostree_repo_traverse_commit_union (self, checksum, depth, reachable,
                                              cancellable, error))
        return FALSE;
    }
Beispiel #3
0
gboolean
ostree_builtin_refs (int argc, char **argv, GCancellable *cancellable, GError **error)
{
  gboolean ret = FALSE;
  GOptionContext *context;
  gs_unref_object OstreeRepo *repo = NULL;
  const char *refspec_prefix = NULL;
  gs_unref_hashtable GHashTable *refs = NULL;
  GHashTableIter hashiter;
  gpointer hashkey, hashvalue;

  context = g_option_context_new ("[PREFIX] - List refs");

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

  if (argc >= 2)
    refspec_prefix = argv[1];

  if (!ostree_repo_list_refs (repo, refspec_prefix, &refs,
                              cancellable, error))
    goto out;

  if (!opt_delete)
    {
      g_hash_table_iter_init (&hashiter, refs);
      while (g_hash_table_iter_next (&hashiter, &hashkey, &hashvalue))
        {
          const char *ref = hashkey;
          g_print ("%s\n", ref);
        }
    }
  else
    {
      g_hash_table_iter_init (&hashiter, refs);
      while (g_hash_table_iter_next (&hashiter, &hashkey, &hashvalue))
        {
          const char *refspec = hashkey;
          gs_free char *remote = NULL;
          gs_free char *ref = NULL;

          if (!ostree_parse_refspec (refspec, &remote, &ref, error))
            goto out;
          
          if (!ostree_repo_set_ref_immediate (repo, remote, ref, NULL,
                                              cancellable, error))
            goto out;
        }
    }

  ret = TRUE;
 out:
  if (context)
    g_option_context_free (context);
  if (repo)
    ostree_repo_abort_transaction (repo, cancellable, NULL);
  return ret;
}
Beispiel #4
0
gboolean
ostree_builtin_reset (int           argc,
                      char        **argv,
                      OstreeCommandInvocation *invocation,
                      GCancellable *cancellable,
                      GError      **error)
{
  g_autoptr(GOptionContext) context = NULL;
  g_autoptr(OstreeRepo) repo = NULL;
  g_autoptr(GHashTable) known_refs = NULL;
  gboolean ret = FALSE;
  const char *ref;
  const char *target = NULL;
  g_autofree char *checksum = NULL;

  /* FIXME: Add support for collection–refs. */
  context = g_option_context_new ("REF COMMIT");

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

  if (!ostree_ensure_repo_writable (repo, error))
    goto out;

  if (argc <= 2)
    {
      ot_util_usage_error (context, "A REF and COMMIT argument is required", error);
      goto out;
    }
  ref = argv[1];
  target = argv[2];

  if (!ostree_repo_list_refs (repo, NULL, &known_refs, cancellable, error))
    goto out;

  if (!g_hash_table_contains (known_refs, ref))
    {
      g_set_error (error, G_IO_ERROR, G_IO_ERROR, "Invalid ref '%s'", ref);
      goto out;
    }

  if (!ostree_repo_resolve_rev (repo, target, FALSE, &checksum, error))
    goto out;

  if (!ostree_repo_prepare_transaction (repo, NULL, cancellable, error))
    goto out;

  ostree_repo_transaction_set_ref (repo, NULL, ref, checksum);

  if (!ostree_repo_commit_transaction (repo, NULL, cancellable, error))
    goto out;

  ret = TRUE;
 out:
  if (repo)
    ostree_repo_abort_transaction (repo, cancellable, NULL);
  return ret;
}
static gboolean
cleanup_ref_prefix (OstreeRepo         *repo,
                    int                 bootversion,
                    int                 subbootversion,
                    GCancellable       *cancellable,
                    GError            **error)
{
    gboolean ret = FALSE;
    gs_free char *prefix = NULL;
    gs_unref_hashtable GHashTable *refs = NULL;
    GHashTableIter hashiter;
    gpointer hashkey, hashvalue;

    prefix = g_strdup_printf ("ostree/%d/%d", bootversion, subbootversion);

    if (!ostree_repo_list_refs (repo, prefix, &refs, cancellable, error))
        goto out;

    if (!ostree_repo_prepare_transaction (repo, NULL, cancellable, error))
        goto out;

    g_hash_table_iter_init (&hashiter, refs);
    while (g_hash_table_iter_next (&hashiter, &hashkey, &hashvalue))
    {
        const char *suffix = hashkey;
        gs_free char *ref = g_strconcat (prefix, "/", suffix, NULL);
        ostree_repo_transaction_set_refspec (repo, ref, NULL);
    }

    if (!ostree_repo_commit_transaction (repo, NULL, cancellable, error))
        goto out;

    ret = TRUE;
out:
    ostree_repo_abort_transaction (repo, cancellable, NULL);
    return ret;
}
Beispiel #6
0
gboolean
ostree_builtin_fsck (int argc, char **argv, OstreeCommandInvocation *invocation, GCancellable *cancellable, GError **error)
{
  g_autoptr(OstreeRepo) repo = NULL;
  gboolean found_corruption = FALSE;

  g_autoptr(GOptionContext) context = g_option_context_new ("");
  if (!ostree_option_context_parse (context, options, &argc, &argv, invocation, &repo, cancellable, error))
    return FALSE;

  if (!opt_quiet)
    g_print ("Validating refs...\n");

  /* Validate that the commit for each ref is available */
  g_autoptr(GHashTable) all_refs = NULL;
  if (!ostree_repo_list_refs (repo, NULL, &all_refs,
                              cancellable, error))
    return FALSE;

  GHashTableIter hash_iter;
  gpointer key, value;
  g_hash_table_iter_init (&hash_iter, all_refs);
  while (g_hash_table_iter_next (&hash_iter, &key, &value))
    {
      const char *refspec = key;
      const char *checksum = value;
      g_autofree char *ref_name = NULL;
      if (!ostree_parse_refspec (refspec, NULL, &ref_name, error))
        return FALSE;
      if (!fsck_commit_for_ref (repo, checksum, NULL, ref_name,
                                &found_corruption, cancellable, error))
        return FALSE;
    }

  if (!opt_quiet)
    g_print ("Validating refs in collections...\n");

  g_autoptr(GHashTable) all_collection_refs = NULL;  /* (element-type OstreeCollectionRef utf8) */
  if (!ostree_repo_list_collection_refs (repo, NULL, &all_collection_refs,
                                         OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_REMOTES,
                                         cancellable, error))
    return FALSE;

  g_hash_table_iter_init (&hash_iter, all_collection_refs);
  while (g_hash_table_iter_next (&hash_iter, &key, &value))
    {
      const OstreeCollectionRef *ref = key;
      if (!fsck_commit_for_ref (repo, value, ref->collection_id, ref->ref_name,
                                &found_corruption, cancellable, error))
        return FALSE;
    }

  if (!opt_quiet)
    g_print ("Enumerating objects...\n");

  g_autoptr(GHashTable) objects = NULL;
  if (!ostree_repo_list_objects (repo, OSTREE_REPO_LIST_OBJECTS_ALL,
                                 &objects, cancellable, error))
    return FALSE;

  g_autoptr(GHashTable) commits = g_hash_table_new_full (ostree_hash_object_name, g_variant_equal,
                                                         (GDestroyNotify)g_variant_unref, NULL);


  g_autoptr(GPtrArray) tombstones = NULL;
  if (opt_add_tombstones)
    tombstones = g_ptr_array_new_with_free_func (g_free);

  if (opt_verify_back_refs)
    opt_verify_bindings = TRUE;

  guint n_partial = 0;
  g_hash_table_iter_init (&hash_iter, objects);
  while (g_hash_table_iter_next (&hash_iter, &key, &value))
    {
      GVariant *serialized_key = key;
      const char *checksum;
      OstreeObjectType objtype;
      OstreeRepoCommitState commitstate = 0;
      g_autoptr(GVariant) commit = NULL;

      ostree_object_name_deserialize (serialized_key, &checksum, &objtype);

      if (objtype == OSTREE_OBJECT_TYPE_COMMIT)
        {
          if (!ostree_repo_load_commit (repo, checksum, &commit, &commitstate, error))
            return FALSE;

          /* If requested, check that all the refs listed in the ref-bindings
           * for this commit resolve back to this commit. */
          if (opt_verify_back_refs)
            {
              g_autoptr(GVariant) metadata = g_variant_get_child_value (commit, 0);

              const char *collection_id = NULL;
              if (!g_variant_lookup (metadata,
                                     OSTREE_COMMIT_META_KEY_COLLECTION_BINDING,
                                     "&s",
                                     &collection_id))
                collection_id = NULL;

              g_autofree const char **refs = NULL;
              if (g_variant_lookup (metadata,
                                    OSTREE_COMMIT_META_KEY_REF_BINDING,
                                    "^a&s",
                                    &refs))
                {
                  for (const char **iter = refs; *iter != NULL; ++iter)
                    {
                      g_autofree char *checksum_for_ref = NULL;

                      if (collection_id != NULL)
                        {
                          const OstreeCollectionRef collection_ref = { (char *) collection_id, (char *) *iter };
                          if (!ostree_repo_resolve_collection_ref (repo, &collection_ref,
                                                                   TRUE,
                                                                   OSTREE_REPO_RESOLVE_REV_EXT_NONE,
                                                                   &checksum_for_ref,
                                                                   cancellable,
                                                                   error))
                            return FALSE;
                        }
                      else
                        {
                          if (!ostree_repo_resolve_rev (repo, *iter, TRUE,
                                                        &checksum_for_ref, error))
                            return FALSE;
                        }

                      if (checksum_for_ref == NULL)
                        {
                          if (collection_id != NULL)
                            return glnx_throw (error,
                                               "Collection–ref (%s, %s) in bindings for commit %s does not exist",
                                               collection_id, *iter, checksum);
                          else
                            return glnx_throw (error,
                                               "Ref ‘%s’ in bindings for commit %s does not exist",
                                               *iter, checksum);
                        }
                      else if (g_strcmp0 (checksum_for_ref, checksum) != 0)
                        {
                          if (collection_id != NULL)
                            return glnx_throw (error,
                                               "Collection–ref (%s, %s) in bindings for commit %s does not resolve to that commit",
                                               collection_id, *iter, checksum);
                          else
                            return glnx_throw (error,
                                               "Ref ‘%s’ in bindings for commit %s does not resolve to that commit",
                                               *iter, checksum);
                        }
                    }
                }
            }

          if (opt_add_tombstones)
            {
              GError *local_error = NULL;
              g_autofree char *parent = ostree_commit_get_parent (commit);
              if (parent)
                {
                  g_autoptr(GVariant) parent_commit = NULL;
                  if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT, parent,
                                                 &parent_commit, &local_error))
                    {
                      if (g_error_matches (local_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
                        {
                          g_ptr_array_add (tombstones, g_strdup (checksum));
                          g_clear_error (&local_error);
                        }
                      else
                        {
                          g_propagate_error (error, local_error);
                          return FALSE;
                        }
                    }
                }
            }

          if (commitstate & OSTREE_REPO_COMMIT_STATE_PARTIAL)
            n_partial++;
          else
            g_hash_table_add (commits, g_variant_ref (serialized_key));
        }
    }

  g_clear_pointer (&objects, (GDestroyNotify) g_hash_table_unref);

  if (!opt_quiet)
    g_print ("Verifying content integrity of %u commit objects...\n",
             (guint)g_hash_table_size (commits));

  if (!fsck_reachable_objects_from_commits (repo, commits, &found_corruption,
                                            cancellable, error))
    return FALSE;

  if (opt_add_tombstones)
    {
      guint i;
      if (tombstones->len)
        {
          if (!ot_enable_tombstone_commits (repo, error))
            return FALSE;
        }
      for (i = 0; i < tombstones->len; i++)
        {
          const char *checksum = tombstones->pdata[i];
          g_print ("Adding tombstone for commit %s\n", checksum);
          if (!ostree_repo_delete_object (repo, OSTREE_OBJECT_TYPE_COMMIT, checksum, cancellable, error))
            return FALSE;
        }
    }
  else if (n_partial > 0)
    {
      g_print ("%u partial commits not verified\n", n_partial);
    }

  if (found_corruption)
    return glnx_throw (error, "Repository corruption encountered");

  return TRUE;
}
Beispiel #7
0
static gboolean
prune_commits_keep_younger_than_date (OstreeRepo *repo, const char *date, GCancellable *cancellable, GError **error)
{
  g_autoptr(GHashTable) refs = NULL;
  g_autoptr(GHashTable) ref_heads = g_hash_table_new (g_str_hash, g_str_equal);
  g_autoptr(GHashTable) objects = NULL;
  GHashTableIter hash_iter;
  gpointer key, value;
  struct timespec ts;
  gboolean ret = FALSE;

  if (!parse_datetime (&ts, date, NULL))
    {
      g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                   "Could not parse '%s'", date);
      goto out;
    }

  if (!ot_enable_tombstone_commits (repo, error))
    goto out;

  if (!ostree_repo_list_refs (repo, NULL, &refs, cancellable, error))
    goto out;

  /* We used to prune the HEAD of a given ref by default, but that's
   * broken for a few reasons.  One is that people may use branches as
   * tags.  Second is that if we do it, we should be deleting the ref
   * too, otherwise e.g. `summary -u` breaks trying to load it, etc.
   */
  g_hash_table_iter_init (&hash_iter, refs);
  while (g_hash_table_iter_next (&hash_iter, &key, &value))
    {
      /* Value is lifecycle bound to refs */
      g_hash_table_add (ref_heads, (char*)value);
    }

  if (!ostree_repo_list_objects (repo, OSTREE_REPO_LIST_OBJECTS_ALL, &objects,
                                 cancellable, error))
    goto out;

  g_hash_table_iter_init (&hash_iter, objects);

  while (g_hash_table_iter_next (&hash_iter, &key, &value))
    {
      GVariant *serialized_key = key;
      const char *checksum;
      OstreeObjectType objtype;
      guint64 commit_timestamp;
      g_autoptr(GVariant) commit = NULL;

      ostree_object_name_deserialize (serialized_key, &checksum, &objtype);

      if (objtype != OSTREE_OBJECT_TYPE_COMMIT)
        continue;

      if (g_hash_table_contains (ref_heads, checksum))
        continue;

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

      commit_timestamp = ostree_commit_get_timestamp (commit);
      if (commit_timestamp < ts.tv_sec)
        {
          if (opt_static_deltas_only)
            {
              if(!ostree_repo_prune_static_deltas (repo, checksum, cancellable, error))
                goto out;
            }
          else
            {
              if (!ostree_repo_delete_object (repo, OSTREE_OBJECT_TYPE_COMMIT, checksum, cancellable, error))
                goto out;
            }
        }
    }

  ret = TRUE;

 out:
  return ret;
}
gboolean
flatpak_builtin_build_commit_from (int argc, char **argv, GCancellable *cancellable, GError **error)
{
  g_autoptr(GOptionContext) context = NULL;
  g_autoptr(GFile) dst_repofile = NULL;
  g_autoptr(OstreeRepo) dst_repo = NULL;
  g_autoptr(GFile) src_repofile = NULL;
  g_autoptr(OstreeRepo) src_repo = NULL;
  g_autofree char *src_repo_uri = NULL;
  const char *dst_repo_arg;
  const char **dst_refs;
  int n_dst_refs = 0;
  g_autoptr(FlatpakRepoTransaction) transaction = NULL;
  g_autoptr(GPtrArray) src_refs = NULL;
  g_autoptr(GPtrArray) resolved_src_refs = NULL;
  OstreeRepoCommitState src_commit_state;
  struct timespec ts;
  guint64 timestamp;
  int i;

  context = g_option_context_new (_("DST-REPO [DST-REF…] - Make a new commit from existing commits"));
  g_option_context_set_translation_domain (context, GETTEXT_PACKAGE);

  if (!flatpak_option_context_parse (context, options, &argc, &argv, FLATPAK_BUILTIN_FLAG_NO_DIR, NULL, cancellable, error))
    return FALSE;

  if (argc < 2)
    return usage_error (context, _("DST-REPO must be specified"), error);

  dst_repo_arg = argv[1];

  dst_refs = (const char **) argv + 2;
  n_dst_refs = argc - 2;

  if (opt_src_repo == NULL && n_dst_refs != 1)
    return usage_error (context, _("If --src-repo is not specified, exactly one destination ref must be specified"), error);

  if (opt_src_ref != NULL && n_dst_refs != 1)
    return usage_error (context, _("If --src-ref is specified, exactly one destination ref must be specified"), error);

  if (opt_src_repo == NULL && opt_src_ref == NULL)
    return flatpak_fail (error, _("Either --src-repo or --src-ref must be specified."));

  /* Always create a commit if we're eol:ing, even though the app is the same */
  if (opt_endoflife != NULL || opt_endoflife_rebase != NULL)
    opt_force = TRUE;

  if (opt_endoflife_rebase)
    {
      opt_endoflife_rebase_new = g_new0 (char *, g_strv_length (opt_endoflife_rebase));

      for (i = 0; opt_endoflife_rebase[i] != NULL; i++)
        {
          char *rebase_old = opt_endoflife_rebase[i];
          char *rebase_new = strchr (rebase_old, '=');

          if (rebase_new == NULL) {
            return usage_error (context, _("Invalid argument format of use  --end-of-life-rebase=OLDID=NEWID"), error);
          }
          *rebase_new = 0;
          rebase_new++;

          if (!flatpak_is_valid_name (rebase_old, error))
            return glnx_prefix_error (error, _("Invalid name %s in --end-of-life-rebase"), rebase_old);

          if (!flatpak_is_valid_name (rebase_new, error))
            return glnx_prefix_error (error, _("Invalid name %s in --end-of-life-rebase"), rebase_new);

          opt_endoflife_rebase_new[i] = rebase_new;
        }
    }

  if (opt_timestamp)
    {
      if (!parse_datetime (&ts, opt_timestamp, NULL))
        return flatpak_fail (error, _("Could not parse '%s'"), opt_timestamp);
    }

  dst_repofile = g_file_new_for_commandline_arg (dst_repo_arg);
  if (!g_file_query_exists (dst_repofile, cancellable))
    return flatpak_fail (error, _("'%s' is not a valid repository"), dst_repo_arg);

  dst_repo = ostree_repo_new (dst_repofile);
  if (!ostree_repo_open (dst_repo, cancellable, error))
    return FALSE;

  if (opt_disable_fsync)
    ostree_repo_set_disable_fsync (dst_repo, TRUE);

  if (opt_src_repo)
    {
      src_repofile = g_file_new_for_commandline_arg (opt_src_repo);
      if (!g_file_query_exists (src_repofile, cancellable))
        return flatpak_fail (error, _("'%s' is not a valid repository"), opt_src_repo);

      src_repo_uri = g_file_get_uri (src_repofile);
      src_repo = ostree_repo_new (src_repofile);
      if (!ostree_repo_open (src_repo, cancellable, error))
        return FALSE;
    }
  else
    {
      src_repo = g_object_ref (dst_repo);
    }

  src_refs = g_ptr_array_new_with_free_func (g_free);
  if (opt_src_ref)
    {
      g_assert (n_dst_refs == 1);
      g_ptr_array_add (src_refs, g_strdup (opt_src_ref));
    }
  else
    {
      g_assert (opt_src_repo != NULL);
      if (n_dst_refs == 0)
        {
          g_autofree const char **keys = NULL;
          g_autoptr(GHashTable) all_src_refs = NULL;

          if (!ostree_repo_list_refs (src_repo, NULL, &all_src_refs,
                                      cancellable, error))
            return FALSE;

          keys = (const char **) g_hash_table_get_keys_as_array (all_src_refs, NULL);

          for (i = 0; keys[i] != NULL; i++)
            {
              if (g_str_has_prefix (keys[i], "runtime/") ||
                  g_str_has_prefix (keys[i], "app/"))
                g_ptr_array_add (src_refs, g_strdup (keys[i]));
            }
          n_dst_refs = src_refs->len;
          dst_refs = (const char **) src_refs->pdata;
        }
      else
        {
          for (i = 0; i < n_dst_refs; i++)
            g_ptr_array_add (src_refs, g_strdup (dst_refs[i]));
        }
    }

  resolved_src_refs = g_ptr_array_new_with_free_func (g_free);
  for (i = 0; i < src_refs->len; i++)
    {
      const char *src_ref = g_ptr_array_index (src_refs, i);
      char *resolved_ref;

      if (!ostree_repo_resolve_rev (src_repo, src_ref, FALSE, &resolved_ref, error))
        return FALSE;

      g_ptr_array_add (resolved_src_refs, resolved_ref);
    }

  if (src_repo_uri != NULL)
    {
      OstreeRepoPullFlags pullflags = 0;
      GVariantBuilder builder;
      g_autoptr(OstreeAsyncProgress) progress = NULL;
      g_auto(GLnxConsoleRef) console = { 0, };
      g_autoptr(GVariant) options = NULL;
      gboolean res;

      if (opt_untrusted)
        pullflags |= OSTREE_REPO_PULL_FLAGS_UNTRUSTED;

      glnx_console_lock (&console);
      if (console.is_tty)
        progress = ostree_async_progress_new_and_connect (ostree_repo_pull_default_console_progress_changed, &console);

      g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));
      g_variant_builder_add (&builder, "{s@v}", "flags",
                             g_variant_new_variant (g_variant_new_int32 (pullflags)));
      g_variant_builder_add (&builder, "{s@v}", "refs",
                             g_variant_new_variant (g_variant_new_strv ((const char * const *) resolved_src_refs->pdata,
                                                                        resolved_src_refs->len)));
      g_variant_builder_add (&builder, "{s@v}", "depth",
                             g_variant_new_variant (g_variant_new_int32 (0)));

      options = g_variant_ref_sink (g_variant_builder_end (&builder));
      res = ostree_repo_pull_with_options (dst_repo, src_repo_uri,
                                           options,
                                           progress,
                                           cancellable, error);

      if (progress)
        ostree_async_progress_finish (progress);

      if (!res)
        return FALSE;
    }

  /* By now we have the commit with commit_id==resolved_ref and dependencies in dst_repo. We now create a new
   * commit based on the toplevel tree ref from that commit.
   * This is equivalent to:
   *   ostree commit --skip-if-unchanged --repo=${destrepo} --tree=ref=${resolved_ref}
   */

  transaction = flatpak_repo_transaction_start (dst_repo, cancellable, error);
  if (transaction == NULL)
    return FALSE;

  for (i = 0; i < resolved_src_refs->len; i++)
    {
      const char *dst_ref = dst_refs[i];
      const char *resolved_ref = g_ptr_array_index (resolved_src_refs, i);
      g_autofree char *dst_parent = NULL;
      g_autoptr(GFile) dst_parent_root = NULL;
      g_autoptr(GFile) src_ref_root = NULL;
      g_autoptr(GVariant) src_commitv = NULL;
      g_autoptr(GVariant) dst_commitv = NULL;
      g_autoptr(OstreeMutableTree) mtree = NULL;
      g_autoptr(GFile) dst_root = NULL;
      g_autoptr(GVariant) commitv_metadata = NULL;
      g_autoptr(GVariant) metadata = NULL;
      const char *subject;
      const char *body;
      g_autofree char *commit_checksum = NULL;
      GVariantBuilder metadata_builder;
      gint j;
      const char *dst_collection_id = NULL;
      const char *main_collection_id = NULL;
      g_autoptr(GPtrArray) collection_ids = NULL;

      if (!ostree_repo_resolve_rev (dst_repo, dst_ref, TRUE, &dst_parent, error))
        return FALSE;

      if (dst_parent != NULL &&
          !ostree_repo_read_commit (dst_repo, dst_parent, &dst_parent_root, NULL, cancellable, error))
        return FALSE;

      if (!ostree_repo_read_commit (dst_repo, resolved_ref, &src_ref_root, NULL, cancellable, error))
        return FALSE;

      if (!ostree_repo_load_commit (dst_repo, resolved_ref, &src_commitv, &src_commit_state, error))
        return FALSE;

      if (src_commit_state & OSTREE_REPO_COMMIT_STATE_PARTIAL)
        return flatpak_fail (error, _("Can't commit from partial source commit."));

      /* Don't create a new commit if this is the same tree */
      if (!opt_force && dst_parent_root != NULL && g_file_equal (dst_parent_root, src_ref_root))
        {
          g_print (_("%s: no change\n"), dst_ref);
          continue;
        }

      mtree = ostree_mutable_tree_new ();
      if (!ostree_repo_write_directory_to_mtree (dst_repo, src_ref_root, mtree, NULL,
                                                 cancellable, error))
        return FALSE;

      if (!ostree_repo_write_mtree (dst_repo, mtree, &dst_root, cancellable, error))
        return FALSE;

      commitv_metadata = g_variant_get_child_value (src_commitv, 0);

      g_variant_get_child (src_commitv, 3, "&s", &subject);
      if (opt_subject)
        subject = (const char *) opt_subject;
      g_variant_get_child (src_commitv, 4, "&s", &body);
      if (opt_body)
        body = (const char *) opt_body;

      dst_collection_id = ostree_repo_get_collection_id (dst_repo);

      collection_ids = g_ptr_array_new_with_free_func (g_free);
      if (dst_collection_id)
        {
          main_collection_id = dst_collection_id;
          g_ptr_array_add (collection_ids, g_strdup (dst_collection_id));
        }

      if (opt_extra_collection_ids != NULL)
        {
          for (j = 0; opt_extra_collection_ids[j] != NULL; j++)
            {
              const char *cid = opt_extra_collection_ids[j];
              if (main_collection_id == NULL)
                main_collection_id = cid; /* Fall back to first arg */

              if (g_strcmp0 (cid, dst_collection_id) != 0)
                g_ptr_array_add (collection_ids, g_strdup (cid));
            }
        }

      g_ptr_array_sort (collection_ids, (GCompareFunc) flatpak_strcmp0_ptr);

      /* Copy old metadata */
      g_variant_builder_init (&metadata_builder, G_VARIANT_TYPE ("a{sv}"));

      /* Bindings. xa.ref is deprecated but added anyway for backwards compatibility. */
      g_variant_builder_add (&metadata_builder, "{sv}", "ostree.collection-binding",
                             g_variant_new_string (main_collection_id ? main_collection_id : ""));
      if (collection_ids->len > 0)
        {
          g_autoptr(GVariantBuilder) cr_builder = g_variant_builder_new (G_VARIANT_TYPE ("a(ss)"));

          for (j = 0; j < collection_ids->len; j++)
            g_variant_builder_add (cr_builder, "(ss)", g_ptr_array_index (collection_ids, j), dst_ref);

          g_variant_builder_add (&metadata_builder, "{sv}", "ostree.collection-refs-binding",
                                 g_variant_builder_end (cr_builder));
        }
      g_variant_builder_add (&metadata_builder, "{sv}", "ostree.ref-binding",
                             g_variant_new_strv (&dst_ref, 1));
      g_variant_builder_add (&metadata_builder, "{sv}", "xa.ref", g_variant_new_string (dst_ref));

      /* Record the source commit. This is nice to have, but it also
         means the commit-from gets a different commit id, which
         avoids problems with e.g.  sharing .commitmeta files
         (signatures) */
      g_variant_builder_add (&metadata_builder, "{sv}", "xa.from_commit", g_variant_new_string (resolved_ref));

      for (j = 0; j < g_variant_n_children (commitv_metadata); j++)
        {
          g_autoptr(GVariant) child = g_variant_get_child_value (commitv_metadata, j);
          g_autoptr(GVariant) keyv = g_variant_get_child_value (child, 0);
          const char *key = g_variant_get_string (keyv, NULL);

          if (strcmp (key, "xa.ref") == 0 ||
              strcmp (key, "xa.from_commit") == 0 ||
              strcmp (key, "ostree.collection-binding") == 0 ||
              strcmp (key, "ostree.collection-refs-binding") == 0 ||
              strcmp (key, "ostree.ref-binding") == 0)
            continue;

          if (opt_endoflife &&
              strcmp (key, OSTREE_COMMIT_META_KEY_ENDOFLIFE) == 0)
            continue;

          if (opt_endoflife_rebase &&
              strcmp (key, OSTREE_COMMIT_META_KEY_ENDOFLIFE_REBASE) == 0)
            continue;

          g_variant_builder_add_value (&metadata_builder, child);
        }

      if (opt_endoflife && *opt_endoflife)
        g_variant_builder_add (&metadata_builder, "{sv}", OSTREE_COMMIT_META_KEY_ENDOFLIFE,
                               g_variant_new_string (opt_endoflife));

      if (opt_endoflife_rebase)
        {
          g_auto(GStrv) dst_ref_parts = g_strsplit (dst_ref, "/", 0);

          for (j = 0; opt_endoflife_rebase[j] != NULL; j++)
            {
              const char *old_prefix = opt_endoflife_rebase[j];

              if (flatpak_has_name_prefix (dst_ref_parts[1], old_prefix))
                {
                  g_autofree char *new_id = g_strconcat (opt_endoflife_rebase_new[j], dst_ref_parts[1] + strlen(old_prefix), NULL);
                  g_autofree char *rebased_ref = g_build_filename (dst_ref_parts[0], new_id, dst_ref_parts[2], dst_ref_parts[3], NULL);

                  g_variant_builder_add (&metadata_builder, "{sv}", OSTREE_COMMIT_META_KEY_ENDOFLIFE_REBASE,
                                         g_variant_new_string (rebased_ref));
                  break;
                }
            }
        }

      timestamp = ostree_commit_get_timestamp (src_commitv);
      if (opt_timestamp)
        timestamp = ts.tv_sec;

      metadata = g_variant_ref_sink (g_variant_builder_end (&metadata_builder));
      if (!ostree_repo_write_commit_with_time (dst_repo, dst_parent, subject, body, metadata,
                                               OSTREE_REPO_FILE (dst_root),
                                               timestamp,
                                               &commit_checksum, cancellable, error))
        return FALSE;

      g_print ("%s: %s\n", dst_ref, commit_checksum);

      if (!ostree_repo_load_commit (dst_repo, commit_checksum, &dst_commitv, NULL, error))
        return FALSE;

      /* This doesn't copy the detached metadata. I'm not sure if this is a problem.
       * The main thing there is commit signatures, and we can't copy those, as the commit hash changes.
       */

      if (opt_gpg_key_ids)
        {
          char **iter;

          for (iter = opt_gpg_key_ids; iter && *iter; iter++)
            {
              const char *keyid = *iter;
              g_autoptr(GError) my_error = NULL;

              if (!ostree_repo_sign_commit (dst_repo,
                                            commit_checksum,
                                            keyid,
                                            opt_gpg_homedir,
                                            cancellable,
                                            &my_error) &&
                  !g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
                {
                  g_propagate_error (error, g_steal_pointer (&my_error));
                  return FALSE;
                }
            }
        }

      if (dst_collection_id != NULL)
        {
          OstreeCollectionRef ref = { (char *) dst_collection_id, (char *) dst_ref };
          ostree_repo_transaction_set_collection_ref (dst_repo, &ref, commit_checksum);
        }
      else
        {
          ostree_repo_transaction_set_ref (dst_repo, NULL, dst_ref, commit_checksum);
        }

      if (opt_extra_collection_ids)
        {
          for (j = 0; opt_extra_collection_ids[j] != NULL; j++)
            {
              OstreeCollectionRef ref = { (char *) opt_extra_collection_ids[j], (char *) dst_ref };
              ostree_repo_transaction_set_collection_ref (dst_repo, &ref, commit_checksum);
            }
        }

      /* Copy + Rewrite any deltas */
      {
        const char *from[2];
        gsize j, n_from = 0;

        if (dst_parent != NULL)
          from[n_from++] = dst_parent;
        from[n_from++] = NULL;

        for (j = 0; j < n_from; j++)
          {
            g_autoptr(GError) local_error = NULL;
            if (!rewrite_delta (src_repo, resolved_ref, dst_repo, commit_checksum, dst_commitv, from[j], &local_error))
              g_debug ("Failed to copy delta: %s", local_error->message);
          }
      }
    }

  if (!ostree_repo_commit_transaction (dst_repo, NULL, cancellable, error))
    return FALSE;

  if (opt_update_appstream &&
      !flatpak_repo_generate_appstream (dst_repo, (const char **) opt_gpg_key_ids, opt_gpg_homedir, 0, cancellable, error))
    return FALSE;

  if (!opt_no_update_summary &&
      !flatpak_repo_update (dst_repo,
                            (const char **) opt_gpg_key_ids,
                            opt_gpg_homedir,
                            cancellable,
                            error))
    return FALSE;

  return TRUE;
}
Beispiel #9
0
/**
 * ostree_repo_prune:
 * @self: Repo
 * @flags: Options controlling prune process
 * @depth: Stop traversal after this many iterations (-1 for unlimited)
 * @out_objects_total: (out): Number of objects found
 * @out_objects_pruned: (out): Number of objects deleted
 * @out_pruned_object_size_total: (out): Storage size in bytes of objects deleted
 * @cancellable: Cancellable
 * @error: Error
 *
 * Delete content from the repository.  By default, this function will
 * only delete "orphaned" objects not referred to by any commit.  This
 * can happen during a local commit operation, when we have written
 * content objects but not saved the commit referencing them.
 *
 * However, if %OSTREE_REPO_PRUNE_FLAGS_REFS_ONLY is provided, instead
 * of traversing all commits, only refs will be used.  Particularly
 * when combined with @depth, this is a convenient way to delete
 * history from the repository.
 * 
 * Use the %OSTREE_REPO_PRUNE_FLAGS_NO_PRUNE to just determine
 * statistics on objects that would be deleted, without actually
 * deleting them.
 */
gboolean
ostree_repo_prune (OstreeRepo        *self,
                   OstreeRepoPruneFlags   flags,
                   gint               depth,
                   gint              *out_objects_total,
                   gint              *out_objects_pruned,
                   guint64           *out_pruned_object_size_total,
                   GCancellable      *cancellable,
                   GError           **error)
{
  GHashTableIter hash_iter;
  gpointer key, value;
  g_autoptr(GHashTable) objects = NULL;
  g_autoptr(GHashTable) all_refs = NULL;
  g_autoptr(GHashTable) reachable = NULL;
  gboolean refs_only = flags & OSTREE_REPO_PRUNE_FLAGS_REFS_ONLY;

  reachable = ostree_repo_traverse_new_reachable ();

  /* This original prune API has fixed logic for traversing refs or all commits
   * combined with actually deleting content. The newer backend API just does
   * the deletion.
   */

  if (refs_only)
    {
      if (!ostree_repo_list_refs (self, NULL, &all_refs,
                                  cancellable, error))
        return FALSE;

      g_hash_table_iter_init (&hash_iter, all_refs);

      while (g_hash_table_iter_next (&hash_iter, &key, &value))
        {
          const char *checksum = value;

          g_debug ("Finding objects to keep for commit %s", checksum);
          if (!ostree_repo_traverse_commit_union (self, checksum, depth, reachable,
                                                  cancellable, error))
            return FALSE;
        }
    }

  if (!ostree_repo_list_objects (self, OSTREE_REPO_LIST_OBJECTS_ALL | OSTREE_REPO_LIST_OBJECTS_NO_PARENTS,
                                 &objects, cancellable, error))
    return FALSE;

  if (!refs_only)
    {
      g_hash_table_iter_init (&hash_iter, objects);
      while (g_hash_table_iter_next (&hash_iter, &key, &value))
        {
          GVariant *serialized_key = key;
          const char *checksum;
          OstreeObjectType objtype;

          ostree_object_name_deserialize (serialized_key, &checksum, &objtype);

          if (objtype != OSTREE_OBJECT_TYPE_COMMIT)
            continue;

          g_debug ("Finding objects to keep for commit %s", checksum);
          if (!ostree_repo_traverse_commit_union (self, checksum, depth, reachable,
                                                  cancellable, error))
            return FALSE;
        }
    }

  { OstreeRepoPruneOptions opts = { flags, reachable };
    return repo_prune_internal (self, objects, &opts,
                                out_objects_total, out_objects_pruned,
                                out_pruned_object_size_total, cancellable, error);
  }
}
gboolean
ostree_builtin_pull_local (int argc, char **argv, OstreeCommandInvocation *invocation, GCancellable *cancellable, GError **error)
{
  gboolean ret = FALSE;
  g_autoptr(GOptionContext) context = NULL;
  g_autoptr(OstreeRepo) repo = NULL;
  int i;
  const char *src_repo_arg;
  g_autofree char *src_repo_uri = NULL;
  g_autoptr(OstreeAsyncProgress) progress = NULL;
  g_autoptr(GPtrArray) refs_to_fetch = NULL;
  OstreeRepoPullFlags pullflags = 0;

  context = g_option_context_new ("SRC_REPO [REFS...]");

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

  if (!ostree_ensure_repo_writable (repo, error))
    goto out;

  if (argc < 2)
    {
      gchar *help = g_option_context_get_help (context, TRUE, NULL);
      g_printerr ("%s\n", help);
      g_free (help);
      g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                               "DESTINATION must be specified");
      goto out;
    }

  src_repo_arg = argv[1];

  if (src_repo_arg[0] == '/')
    src_repo_uri = g_strconcat ("file://", src_repo_arg, NULL);
  else
    { 
      g_autofree char *cwd = g_get_current_dir ();
      src_repo_uri = g_strconcat ("file://", cwd, "/", src_repo_arg, NULL);
    }

  if (opt_untrusted)
    pullflags |= OSTREE_REPO_PULL_FLAGS_UNTRUSTED;
  if (opt_bareuseronly_files)
    pullflags |= OSTREE_REPO_PULL_FLAGS_BAREUSERONLY_FILES;

  if (opt_disable_fsync)
    ostree_repo_set_disable_fsync (repo, TRUE);

  if (argc == 2)
    {
      g_autoptr(GFile) src_repo_path = g_file_new_for_path (src_repo_arg);
      g_autoptr(OstreeRepo) src_repo = ostree_repo_new (src_repo_path);
      g_autoptr(GHashTable) refs_to_clone = NULL;

      refs_to_fetch = g_ptr_array_new_with_free_func (g_free);

      if (!ostree_repo_open (src_repo, cancellable, error))
        goto out;

      /* FIXME: This should grow support for pulling refs from refs/mirrors on
       * a local repository, using ostree_repo_list_collection_refs(). */
      if (!ostree_repo_list_refs (src_repo, NULL, &refs_to_clone,
                                  cancellable, error))
        goto out;

      { GHashTableIter hashiter;
        gpointer hkey, hvalue;
        
        g_hash_table_iter_init (&hashiter, refs_to_clone);
        while (g_hash_table_iter_next (&hashiter, &hkey, &hvalue))
          g_ptr_array_add (refs_to_fetch, g_strdup (hkey));
      }
      g_ptr_array_add (refs_to_fetch, NULL);
    }
  else
    {
      refs_to_fetch = g_ptr_array_new ();
      for (i = 2; i < argc; i++)
        {
          const char *ref = argv[i];
          
          g_ptr_array_add (refs_to_fetch, (char*)ref);
        }
      g_ptr_array_add (refs_to_fetch, NULL);
    }

  { GVariantBuilder builder;
    g_autoptr(GVariant) opts = NULL;
    g_auto(GLnxConsoleRef) console = { 0, };

    glnx_console_lock (&console);

    g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));

    g_variant_builder_add (&builder, "{s@v}", "flags",
                           g_variant_new_variant (g_variant_new_int32 (pullflags)));
    g_variant_builder_add (&builder, "{s@v}", "refs",
                           g_variant_new_variant (g_variant_new_strv ((const char *const*) refs_to_fetch->pdata, -1)));
    if (opt_remote)
      g_variant_builder_add (&builder, "{s@v}", "override-remote-name",
                             g_variant_new_variant (g_variant_new_string (opt_remote)));
    g_variant_builder_add (&builder, "{s@v}", "require-static-deltas",
                           g_variant_new_variant (g_variant_new_boolean (opt_require_static_deltas)));
    if (opt_gpg_verify)
      g_variant_builder_add (&builder, "{s@v}", "gpg-verify",
                             g_variant_new_variant (g_variant_new_boolean (TRUE)));
    if (opt_gpg_verify_summary)
      g_variant_builder_add (&builder, "{s@v}", "gpg-verify-summary",
                             g_variant_new_variant (g_variant_new_boolean (TRUE)));
    g_variant_builder_add (&builder, "{s@v}", "depth",
                           g_variant_new_variant (g_variant_new_int32 (opt_depth)));

    if (console.is_tty)
      progress = ostree_async_progress_new_and_connect (ostree_repo_pull_default_console_progress_changed, &console);
    else
      progress = ostree_async_progress_new_and_connect (noninteractive_console_progress_changed, &console);

    opts = g_variant_ref_sink (g_variant_builder_end (&builder));
    if (!ostree_repo_pull_with_options (repo, src_repo_uri, 
                                        opts,
                                        progress,
                                        cancellable, error))
      goto out;

    if (!console.is_tty)
      {
        g_assert (progress);
        const char *status = ostree_async_progress_get_status (progress);
        if (status)
          g_print ("%s\n", status);
      }
    ostree_async_progress_finish (progress);
  }

  ret = TRUE;
 out:
  if (repo)
    ostree_repo_abort_transaction (repo, cancellable, NULL);
  return ret;
}
static gboolean
generate_all_deltas (OstreeRepo   *repo,
                     GPtrArray   **unwanted_deltas,
                     GCancellable *cancellable,
                     GError      **error)
{
  g_autoptr(GHashTable) all_refs = NULL;
  g_autoptr(GHashTable) all_deltas_hash = NULL;
  g_autoptr(GHashTable) wanted_deltas_hash = NULL;
  g_autoptr(GPtrArray) all_deltas = NULL;
  int i;
  GHashTableIter iter;
  gpointer key, value;
  g_autoptr(GVariantBuilder) parambuilder = NULL;
  g_autoptr(GVariant) params = NULL;
  int n_spawned_delta_generate = 0;
  g_autoptr(GMainContextPopDefault) context = NULL;
  g_autoptr(GPtrArray) ignore_patterns = g_ptr_array_new_with_free_func ((GDestroyNotify)g_pattern_spec_free);

  g_print ("Generating static deltas\n");

  parambuilder = g_variant_builder_new (G_VARIANT_TYPE ("a{sv}"));
  /* Fall back for 1 meg files */
  g_variant_builder_add (parambuilder, "{sv}",
                         "min-fallback-size", g_variant_new_uint32 (1));
  params = g_variant_ref_sink (g_variant_builder_end (parambuilder));

  if (!ostree_repo_list_static_delta_names (repo, &all_deltas,
                                            cancellable, error))
    return FALSE;

  wanted_deltas_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);

  all_deltas_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
  for (i = 0; i < all_deltas->len; i++)
    g_hash_table_insert (all_deltas_hash,
                         g_strdup (g_ptr_array_index (all_deltas, i)),
                         NULL);

  if (!ostree_repo_list_refs (repo, NULL, &all_refs,
                              cancellable, error))
    return FALSE;

  context = flatpak_main_context_new_default ();

  if (opt_static_delta_ignore_refs != NULL)
    {
      for (i = 0; opt_static_delta_ignore_refs[i] != NULL; i++)
        g_ptr_array_add (ignore_patterns,
                         g_pattern_spec_new (opt_static_delta_ignore_refs[i]));
    }

  g_hash_table_iter_init (&iter, all_refs);
  while (g_hash_table_iter_next (&iter, &key, &value))
    {
      const char *ref = key;
      const char *commit = value;
      g_autoptr(GVariant) variant = NULL;
      g_autoptr(GVariant) parent_variant = NULL;
      g_autofree char *parent_commit = NULL;
      g_autofree char *grandparent_commit = NULL;
      gboolean ignore_ref = FALSE;

      if (g_str_has_prefix (ref, "app/") || g_str_has_prefix (ref, "runtime/"))
        {
          g_auto(GStrv) parts = g_strsplit (ref, "/", 4);

          for (i = 0; i < ignore_patterns->len; i++)
            {
              GPatternSpec *pattern = g_ptr_array_index(ignore_patterns, i);
              if (g_pattern_match_string (pattern, parts[1]))
                {
                  ignore_ref = TRUE;
                  break;
                }
            }

        }
      else if (g_str_has_prefix (ref, "appstream/"))
        {
          /* Old appstream branch deltas poorly, and most users handle the new format */
          ignore_ref = TRUE;
        }
      else if (g_str_has_prefix (ref, "appstream2/"))
        {
          /* Always delta this */
          ignore_ref = FALSE;
        }
      else
        {
          /* Ignore unknown ref types */
          ignore_ref = FALSE;
        }

      if (ignore_ref)
        {
          g_debug ("Ignoring deltas for ref %s", ref);
          continue;
        }

      if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT, commit,
                                     &variant, NULL))
        {
          g_warning ("Couldn't load commit %s", commit);
          continue;
        }

      /* From empty */
      if (!g_hash_table_contains (all_deltas_hash, commit))
        {
          if (!spawn_delta_generation (context, &n_spawned_delta_generate, repo, params,
                                       ref, NULL, commit,
                                       error))
            return FALSE;
        }

      /* Mark this one as wanted */
      g_hash_table_insert (wanted_deltas_hash, g_strdup (commit), GINT_TO_POINTER (1));

      parent_commit = ostree_commit_get_parent (variant);

      if (parent_commit != NULL &&
          !ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT, parent_commit,
                                     &parent_variant, NULL))
        {
          g_warning ("Couldn't load parent commit %s", parent_commit);
          continue;
        }

      /* From parent */
      if (parent_variant != NULL)
        {
          g_autofree char *from_parent = g_strdup_printf ("%s-%s", parent_commit, commit);

          if (!g_hash_table_contains (all_deltas_hash, from_parent))
            {
              if (!spawn_delta_generation (context, &n_spawned_delta_generate, repo, params,
                                           ref, parent_commit, commit,
                                           error))
                return FALSE;
            }

          /* Mark parent-to-current as wanted */
          g_hash_table_insert (wanted_deltas_hash, g_strdup (from_parent), GINT_TO_POINTER (1));

          /* We also want to keep around the parent and the grandparent-to-parent deltas
           * because otherwise these will be deleted immediately which may cause a race if
           * someone is currently downloading them.
           * However, there is no need to generate these if they don't exist.
           */

          g_hash_table_insert (wanted_deltas_hash, g_strdup (parent_commit), GINT_TO_POINTER (1));
          grandparent_commit = ostree_commit_get_parent (parent_variant);
          if (grandparent_commit != NULL)
            g_hash_table_insert (wanted_deltas_hash,
                                 g_strdup_printf ("%s-%s", grandparent_commit, parent_commit),
                                 GINT_TO_POINTER (1));
        }
    }

  while (n_spawned_delta_generate > 0)
    g_main_context_iteration (context, TRUE);

  *unwanted_deltas = g_ptr_array_new_with_free_func (g_free);
  for (i = 0; i < all_deltas->len; i++)
    {
      const char *delta = g_ptr_array_index (all_deltas, i);
      if (!g_hash_table_contains (wanted_deltas_hash, delta))
        g_ptr_array_add (*unwanted_deltas, g_strdup (delta));
    }

  return TRUE;
}
Beispiel #12
0
static gboolean
write_checksum_file_at (OstreeRepo   *self,
                        int dfd,
                        const char *name,
                        const char *sha256,
                        GCancellable *cancellable,
                        GError **error)
{
  if (!ostree_validate_checksum_string (sha256, error))
    return FALSE;

  if (ostree_validate_checksum_string (name, NULL))
    return glnx_throw (error, "Rev name '%s' looks like a checksum", name);

  if (!*name)
    return glnx_throw (error, "Invalid empty ref name");

  const char *lastslash = strrchr (name, '/');

  if (lastslash)
    {
      char *parent = strdupa (name);
      parent[lastslash - name] = '\0';

      if (!glnx_shutil_mkdir_p_at (dfd, parent, 0777, cancellable, error))
        return FALSE;
    }

  {
    size_t l = strlen (sha256);
    char *bufnl = alloca (l + 2);
    g_autoptr(GError) temp_error = NULL;

    memcpy (bufnl, sha256, l);
    bufnl[l] = '\n';
    bufnl[l+1] = '\0';

    if (!_ostree_repo_file_replace_contents (self, dfd, name, (guint8*)bufnl, l + 1,
                                             cancellable, &temp_error))
      {
        if (g_error_matches (temp_error, G_IO_ERROR, G_IO_ERROR_IS_DIRECTORY))
          {
            g_autoptr(GHashTable) refs = NULL;
            GHashTableIter hashiter;
            gpointer hashkey, hashvalue;

            g_clear_error (&temp_error);

            if (!ostree_repo_list_refs (self, name, &refs, cancellable, error))
              return FALSE;

            g_hash_table_iter_init (&hashiter, refs);

            while ((g_hash_table_iter_next (&hashiter, &hashkey, &hashvalue)))
              {
                if (strcmp (name, (char *)hashkey) != 0)
                  return glnx_throw (error, "Conflict: %s exists under %s when attempting write", (char*)hashkey, name);
              }

            if (!glnx_shutil_rm_rf_at (dfd, name, cancellable, error))
              return FALSE;

            if (!_ostree_repo_file_replace_contents (self, dfd, name, (guint8*)bufnl, l + 1,
                                                     cancellable, error))
              return FALSE;
          }
        else
          {
            g_propagate_error (error, g_steal_pointer (&temp_error));
            return FALSE;
          }
      }
  }

  return TRUE;
}