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From: Junio C Hamano <gitster@pobox.com>
To: Miklos Vajna <vmiklos@frugalware.org>
Cc: Russell King <rmk@arm.linux.org.uk>, git@vger.kernel.org
Subject: Re: git merge vs git commit
Date: Tue, 09 Sep 2008 12:11:34 -0700	[thread overview]
Message-ID: <7vd4jd6snt.fsf@gitster.siamese.dyndns.org> (raw)
In-Reply-To: <20080909185418.GI4829@genesis.frugalware.org> (Miklos Vajna's message of "Tue, 9 Sep 2008 20:54:18 +0200")

Miklos Vajna <vmiklos@frugalware.org> writes:

> On Tue, Sep 09, 2008 at 10:34:42AM -0700, Junio C Hamano <gitster@pobox.com> wrote:
>> I think some changes went into 1.6.0 around this area to (r)eject parents
>> that are redundant.
>
> Yes, it was your 98cf9c3 (Introduce reduce_heads(), 2008-06-27).

That does not necessarily mean git-merge (or git-merge-octopus) uses that
C function when coming up with the set of commits to record as parents.

As to what the correct behaviour is, I personally do not have a strong
preference either way.

 - If you specify a fast-foward on the command line to merge into your
   HEAD, that is your choice and you may deserve the extra parent, even if
   it is redundant.  

 - On the other hand, if you try to merge a single fast-forward, we do not
   even create a merge commit, so in the same spirit it may be better if
   we dropped the original HEAD from the merged result (i.e. Russell's
   "cleanly merged" case).

I dunno.

  reply	other threads:[~2008-09-09 19:12 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-09 16:52 git merge vs git commit Russell King
2008-09-09 17:34 ` Junio C Hamano
2008-09-09 18:54   ` Miklos Vajna
2008-09-09 19:11     ` Junio C Hamano [this message]
2008-09-09 21:32 ` Matthieu Moy
  -- strict thread matches above, loose matches on Subject: below --
2008-09-10 17:42 Ulrik Sverdrup

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