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From: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
To: Vishal Verma <vishal@kernel.org>
Cc: tools <tools@linux.kernel.org>
Subject: Re: b4 prep -e oddness
Date: Wed, 11 Jan 2023 17:00:07 -0500	[thread overview]
Message-ID: <20230111220007.b5kjtmcvrq3tn7xj@meerkat.local> (raw)
In-Reply-To: <ad77e06d2cb9ba322abad4f27865d4d6f79f6644.camel@kernel.org>

On Wed, Jan 11, 2023 at 01:56:24PM -0700, Vishal Verma wrote:
> The problematic step seems to be:
> 
> $ git --no-pager merge-base --fork-point master new_branch
> 9652673e06ea84926e3be7c5cef0285c60fe31ff

I'm not sure it's problematic as much as it's just not something you're
expecting in this particular case. 

I did think that finding the actual fork-point would be useful, but I'm happy
to drop that if the expectation is that we're just looking for the best
merge-base, as opposed to the actual forking point.

> It looks like --fork-point uses the reflog, which has an entry for, I
> guess, a stale new_commit on master. (Maybe a gc will clean this up?)
> 
> Instead, if I did this (drop --fork-point and just do a vanilla merge-
> base):
> 
> $ git --no-pager merge-base master new_branch
> b7bfaa761d760e72a969d116517eaa12e404c262
> 
> This is what I'd expect (-rc3).
> 
> I'm not sure if switching to this breaks other expectations though?

No, this is literally up to what makes most sense. Do we always want to use
the actual merge-base and ignore any reflog forking history when enrolling
branches?

-K

  reply	other threads:[~2023-01-11 22:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-11 20:56 b4 prep -e oddness Vishal Verma
2023-01-11 22:00 ` Konstantin Ryabitsev [this message]
2023-01-11 22:22   ` Vishal Verma

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