Re: [PATCH v2 3/3] clean: improve performance when removing lots of directories

[Junio C Hamano <gitster@pobox.com>]

Jeff King <peff@peff.net> writes:

>> Option 1:
>>  Plug the hole in my new is_git_repository function. A quick and dirty
>>  fix that passes the above test would be:
>
> I think that makes sense. It would be nice if you could just call
> read_gitfile, but that function is very anxious to die on error. So the
> prerequisite step would probably be to refactor that into a
> read_gitfile_gently that returns an error code.

I agree.

I was looking at the repository discovery loop to see if it makes
sense to update is-git-directory() to take a gitfile, but I do not
think it is a good idea (typically after is-git-directory() says
"yes", we would append paths e.g. "refs/heads/master" after it to
pass the result to system calls like open()).  I agree that adding
read-gitfile-gently and call it before running is-git-directory
would be a good solution for this change.

> PS Thank you for working on this.

That too.

Thanks.