Function reftable_stack_destroy

reftable/stack.c:161–213

Close and free the stack */

/* Close and free the stack */
void reftable_stack_destroy(struct reftable_stack *st)
{
	char **names = NULL;
	int err = 0;

	if (!st)
		return;

	if (st->merged) {
		reftable_merged_table_free(st->merged);
		st->merged = NULL;
	}

	err = read_lines(st->list_file, &names);
	if (err < 0) {
		REFTABLE_FREE_AND_NULL(names);
	}

	if (st->tables) {
		struct reftable_buf filename = REFTABLE_BUF_INIT;

		for (size_t i = 0; i < st->tables_len; i++) {
			const char *name = reftable_table_name(st->tables[i]);
			int try_unlinking = 1;

			reftable_buf_reset(&filename);
			if (names && !has_name(names, name)) {
				if (stack_filename(&filename, st, name) < 0)
					try_unlinking = 0;
			}
			reftable_table_decref(st->tables[i]);

			if (try_unlinking && filename.len) {
				/* On Windows, can only unlink after closing. */
				unlink(filename.buf);
			}
		}

		reftable_buf_release(&filename);
		st->tables_len = 0;
		REFTABLE_FREE_AND_NULL(st->tables);
	}

	if (st->list_fd >= 0) {
		close(st->list_fd);
		st->list_fd = -1;
	}

	REFTABLE_FREE_AND_NULL(st->list_file);
	REFTABLE_FREE_AND_NULL(st->reftable_dir);
	reftable_free(st);
	free_names(names);
}

static struct reftable_table **stack_copy_tables(struct reftable_stack *st,
						 size_t cur_len)