From: Junio C Hamano <gitster@pobox.com>
Date: Sun, 09 Nov 2014 17:23:58 GMT
Subject: Re: What is the default refspec for fetch?
Message-ID: <xmqq7fz4e18x.fsf@gitster.dls.corp.google.com>
In-Reply-To: <545E2A2D.2040205@gmail.com>

Jakub Narębski <jnareb@gmail.com> writes:

> W dniu 2014-11-08 11:52, Jeff King pisze:
>> On Fri, Nov 07, 2014 at 04:31:08PM +0100, Christian Halstrick wrote:
>>
>>> In a repo where no remote.<name>.fetch config parameter is set what
>>> should a "git fetch" do? My experiments let me think it's
>>> "HEAD:FETCH_HEAD". Right?
>>
>> Basically, yes. We always write FETCH_HEAD, regardless of the refspec.
>> We choose "HEAD" if no other refspec was provided. So it is really more
>> like
>>
>>    git fetch $remote HEAD
>>
>> This is what makes one-off bare-url pulls work, like:
>>
>>    git pull git://...
>>
>> It runs fetch under the hood, which writes into FETCH_HEAD, and then we
>> merge that.
>
> Actually FETCH_HEAD consists of multiple lines, one per ref...
> but only top ref is merged.

Incorrect in that "only top" is misinformation, and irrelevant in
the context of discussing the "what is fetched in a one-off fetch".