Function prune_worktrees

builtin/worktree.c:212–246

}

static void prune_worktrees(void)
{
	struct strbuf reason = STRBUF_INIT;
	struct strbuf main_path = STRBUF_INIT;
	struct string_list kept = STRING_LIST_INIT_DUP;
	char *path;
	DIR *dir;
	struct dirent *d;

	path = repo_git_path(the_repository, "worktrees");
	dir = opendir(path);
	free(path);
	if (!dir)
		return;
	while ((d = readdir_skip_dot_and_dotdot(dir)) != NULL) {
		char *path;
		strbuf_reset(&reason);
		if (should_prune_worktree(d->d_name, &reason, &path, expire))
			prune_worktree(d->d_name, reason.buf);
		else if (path)
			string_list_append_nodup(&kept, path)->util = xstrdup(d->d_name);
	}
	closedir(dir);

	strbuf_add_absolute_path(&main_path, repo_get_common_dir(the_repository));
	/* massage main worktree absolute path to match 'gitdir' content */
	strbuf_strip_suffix(&main_path, "/.");
	string_list_append_nodup(&kept, strbuf_detach(&main_path, NULL));
	prune_dups(&kept);
	string_list_clear(&kept, 1);

	if (!show_only)
		delete_worktrees_dir_if_empty();
	strbuf_release(&reason);
}

static int prune(int ac, const char **av, const char *prefix,
		 struct repository *repo UNUSED)