Function trim_last_path_component

lockfile.c:20–36

* path = absolute or relative path name * * Remove the last path name element from path (leaving the preceding * "/", if any). If path is empty or the root directory ("/"), set * path to the empty string. */

 * path to the empty string.
 */
static void trim_last_path_component(struct strbuf *path)
{
	int i = path->len;

	/* back up past trailing slashes, if any */
	while (i && is_dir_sep(path->buf[i - 1]))
		i--;

	/*
	 * then go backwards until a slash, or the beginning of the
	 * string
	 */
	while (i && !is_dir_sep(path->buf[i - 1]))
		i--;

	strbuf_setlen(path, i);
}


/* We allow "recursive" symbolic links. Only within reason, though */