From: Junio C Hamano <gitster@pobox.com>
Date: Tue, 28 Jul 2015 20:04:39 GMT
Subject: Re: [PATCH] cache-tree: populate cache-tree on successful merge
Message-ID: <xmqq1tfsdp60.fsf@gitster.dls.corp.google.com>
In-Reply-To: <xmqq6154dpkt.fsf@gitster.dls.corp.google.com>

Junio C Hamano <gitster@pobox.com> writes:

> David Turner <dturner@twopensource.com> writes:
>
>> The work done to produce the cache-tree is work that the commit would
>> otherwise have to do.  So we're spending extra time in one place to
>> eliminate that work in a different place.
>
> Good point.  Thanks.

Hmm, I forgot about another codepath.  What about operations that
are purely done to pouplate the index, without necessarily creating
a tree out of the index?

The most worrisome is "git checkout $branch" (two-tree merge).