Function mark_object

builtin/fsck.c:125–179

static struct object_array pending;

static int mark_object(struct object *obj, enum object_type type,
		       void *data, struct fsck_options *options)
{
	struct object *parent = data;

	/*
	 * The only case data is NULL or type is OBJ_ANY is when
	 * mark_object_reachable() calls us.  All the callers of
	 * that function has non-NULL obj hence ...
	 */
	if (!obj) {
		/* ... these references to parent->fld are safe here */
		printf_ln(_("broken link from %7s %s"),
			  printable_type(options->repo, &parent->oid, parent->type),
			  describe_object(&parent->oid));
		printf_ln(_("broken link from %7s %s"),
			  (type == OBJ_ANY ? _("unknown") : type_name(type)),
			  _("unknown"));
		errors_found |= ERROR_REACHABLE;
		return 1;
	}

	if (type != OBJ_ANY && obj->type != type)
		/* ... and the reference to parent is safe here */
		objerror(options->repo, parent, _("wrong object type in link"));

	if (obj->flags & REACHABLE)
		return 0;
	obj->flags |= REACHABLE;

	if (is_promisor_object(options->repo, &obj->oid))
		/*
		 * Further recursion does not need to be performed on this
		 * object since it is a promisor object (so it does not need to
		 * be added to "pending").
		 */
		return 0;

	if (!(obj->flags & HAS_OBJ)) {
		if (parent && !odb_has_object(options->repo->objects, &obj->oid,
					      ODB_HAS_OBJECT_RECHECK_PACKED)) {
			printf_ln(_("broken link from %7s %s\n"
				    "              to %7s %s"),
				  printable_type(options->repo, &parent->oid, parent->type),
				  describe_object(&parent->oid),
				  printable_type(options->repo, &obj->oid, obj->type),
				  describe_object(&obj->oid));
			errors_found |= ERROR_REACHABLE;
		}
		return 1;
	}

	add_object_array(obj, NULL, &pending);
	return 0;
}

static void mark_object_reachable(struct object *obj)
{