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From: Mike Hommey <mh@glandium.org>
To: git@vger.kernel.org
Subject: Ambiguous sha-1 during a rebase
Date: Thu, 14 Apr 2016 07:29:19 +0900	[thread overview]
Message-ID: <20160413222919.GA10474@glandium.org> (raw)

Hi,

Something interesting happened to me. I was in the middle of an
interactive rebase, and after a --continue, I got:

error: short SHA1 e34ff55 is ambiguous.
fatal: Needed a single revision
Invalid commit name: e34ff55

One thing that happened, is that, while running that interactive rebase,
I /also/ did a `git remote update` from an other shell, which, I guess,
happened to have imported another object that made e34ff55 ambiguous.

Should git-rebase use full sha-1s under the hood to avoid these type of
races?

Relatedly, having looked up the ambiguity, it turns out the other object
that fits the same short sha1 is a tree... maybe git should be able to
disambiguate in that case, since it was looking for a commit, and
there's only one commit with that short sha1?

Mike

             reply	other threads:[~2016-04-13 22:29 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-13 22:29 Mike Hommey [this message]
2016-04-13 22:42 ` Ambiguous sha-1 during a rebase Junio C Hamano
2016-04-13 22:52   ` Mike Hommey
2016-04-14  9:09     ` Matthieu Moy
2016-04-14  9:38       ` Mike Hommey
2016-04-14 13:24         ` Matthieu Moy
2016-04-14 17:27           ` Remi Galan Alfonso
2016-04-14 15:55   ` Johannes Schindelin

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