From: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Date: Tue, 01 Feb 2011 17:05:55 GMT
Subject: Re: Features from GitSurvey 2010
Message-ID: <AANLkTi=oTL2_ObcyKRb7bf7ZMPZoa1BU7uNH5pJRQtVC@mail.gmail.com>
In-Reply-To: <AANLkTinPAL2rEUMe-tRGFxSQ0-gfAJvSO7WW+f+2Fd2u@mail.gmail.com>

On Tue, Feb 1, 2011 at 11:27 PM, Shawn Pearce <spearce@spearce.org> wrote:
>>> > subtree clone
>>>
>>> Nguyễn Thái Ngọc Duy and Elijah Newren have done some design and
>>> prototyping work.
>>
>> Git mailing list archives should contain proof of concept / RFC patches
>> for this feature.  Quite interesting.
>
> I think Junio has already started thinking about this one.

I need to get nd/pathspec right and implement negative pathspecs
before returning to this feature. But there are still interesting
issues:

 - narrow by directories or pathspecs (or unpack_trees() by
directories or pathspecs)
 - widen a clone (negative pathspecs should help calculating necessary objects)
 - should commit objects that does not update narrow area be fetched
(I recall it consumes a considerable amount. Security is also an
issue)
 - push support for shallow clone (Elijah approach does not base on
shallow clone, so it's non-issue)
-- 
Duy