Function write_reflog_existence_table

refs/reftable-backend.c:2306–2336

};

static int write_reflog_existence_table(struct reftable_writer *writer,
					void *cb_data)
{
	struct write_reflog_existence_arg *arg = cb_data;
	uint64_t ts = reftable_stack_next_update_index(arg->stack);
	struct reftable_log_record log = {0};
	int ret;

	ret = reftable_stack_read_log(arg->stack, arg->refname, &log);
	if (ret <= 0)
		goto done;

	ret = reftable_writer_set_limits(writer, ts, ts);
	if (ret < 0)
		goto done;

	/*
	 * The existence entry has both old and new object ID set to the
	 * null object ID. Our iterators are aware of this and will not present
	 * them to their callers.
	 */
	log.refname = xstrdup(arg->refname);
	log.update_index = ts;
	log.value_type = REFTABLE_LOG_UPDATE;
	ret = reftable_writer_add_log(writer, &log);

done:
	assert(ret != REFTABLE_API_ERROR);
	reftable_log_record_release(&log);
	return ret;
}

static int reftable_be_create_reflog(struct ref_store *ref_store,
				     const char *refname,