From: Junio C Hamano <gitster@pobox.com>
Date: Sun, 06 Jul 2008 20:04:18 GMT
Subject: Re: [q] git-diff --reverse 7def2be1..7def2be1^
Message-ID: <7vprpqdbjx.fsf@gitster.siamese.dyndns.org>
In-Reply-To: <37fcd2780807060916h7d8c4e6mba7f30570d527dc3@mail.gmail.com>

"Dmitry Potapov" <dpotapov@gmail.com> writes:

> On Fri, Jun 20, 2008 at 2:05 PM, Jakub Narebski <jnareb@gmail.com> wrote:
>>
>> There is shortcut for rev^..rev, namely rev^! (I'm not sure if it is
>> documented anywhere, though),
>
> The latter is not exactly a shortcut for the former.  You can try it at any
> merge commit, and you will see different log. For instance, in Git repo:
> ...
> So, I believe, rev^! means --first-parent rev^..rev

Not quite.  From Documentation/git-rev-parse.txt:

    SPECIFYING RANGES
    -----------------

    Two other shorthands for naming a set that is formed by a commit
    and its parent commits exists.  `r1{caret}@` notation means all
    parents of `r1`.  `r1{caret}!` includes commit `r1` but excludes
    its all parents.