From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 13 Aug 2025 21:40:17 GMT
Subject: Re: symmetric difference with --left-only vs. range notation
Message-ID: <xmqq8qjmc33y.fsf@gitster.g>
In-Reply-To: <CALnO6CBOWTCd-cREfGYL8DPPd=S-s3Y6s0cgwvBzCJZr6E6hvA@mail.gmail.com>

"D. Ben Knoble" <ben.knoble@gmail.com> writes:

>     git rev-list --count --left-only @{u}...
>     git rev-list --count ..@{u}
>
> In my estimation, since we're not using --cherry-pick here, the first
> says "list (count) the commits on upstream but not in HEAD, since the
> merge-base (which is reachable from both)" while the second says "list
> (count) the commits on upstream but not in HEAD." Is there ever a
> situation where those sets aren't the same?

I don't think of any; let us know when you find a case that the
above does not hold true ;-).