Subject: Re: [PATCH v3] worktree: add 'list' command

From: David Turner <[email-masked]>
Date: Mon, 10 Aug 2015 22:55:25 -0400

On Mon, 2015-08-10 at 16:53 -0400, Michael Rappazzo wrote:
> +			while ((d = readdir(dir)) != NULL) {

I think it would be useful to break this loop out into a
for_each_worktree function.

While looking into per-worktree ref stuff, I have just noticed that git
prune will delete objects that are only referenced in a different
worktree's detached HEAD.  To fix this, git prune will need to walk over
each worktree, looking at that worktree's HEAD (and other per-worktree
refs).  It would be useful to be able to reuse some of this code for
that task.