From: "Ramkumar Ramachandra" <r@artagnon.com>
To: "Junio C Hamano" <gitster@pobox.com>
Cc: "Git List" <git@vger.kernel.org>
Subject: Re: git bisect bad @
Date: Sun, 09 Jan 2022 21:48:19 +0100 [thread overview]
Message-ID: <fead25d6-6f5f-487a-ad4c-0657fe9785fd@www.fastmail.com> (raw)
In-Reply-To: <xmqqilus3ctf.fsf@gitster.g>
Hi,
Junio C Hamano wrote:
> So, perhaps there is something you are not quite telling us,
> e.g. your problem happens during a replay an old bisect session
> after HEAD has moved---if we had a bug that records symbolic object
> names in the replay log, it may produce a nonsense result in such a
> case (but I doubt that is the case---I am reasonably sure that the
> log also records concrete object names)?
>
> Perhaps you can try again with a better minimum reproducible
> example?
Indeed, I was a bit naive to assume that bisect didn't rev-parse. I'm happy to report that I've found the minimum reproducible example.
# on coq.git, for those curious
$ git bisect start
$ git bisect bad @
$ git bisect good V8.14.1
$ git bisect run bisect.sh # oops!
Lancement de 'bisect.sh'
'bisect.sh': bisect.sh: command not found
La base de fusion ea3595845f5013359b2ba4402f948e454350a74c est mauvaise.
Cela signifie que le bogue été corrigé entre
ea3595845f5013359b2ba4402f948e454350a74c et [2e100906d5d0c276335665ffefedb906d21165ca].
error: la bissection a échoué : 'git bisect--helper --bisect-state (null)' a retourné le code erreur -3
$ git bisect run ./bisect.sh # let's try again!
# churn ... build ... test
Cela signifie que le bogue été corrigé entre ea3595845f5013359b2ba4402f948e454350a74c et
[2e100906d5d0c276335665ffefedb906d21165ca ea3595845f5013359b2ba4402f948e454350a74c].
error: la bissection a échoué : 'git bisect--helper --bisect-state (null)' a retourné le code erreur -3
In all three of my runs, there was never a straightforward non-erroring sequence of git-bisect invocations (although my terminal history is lost). Perhaps git-bisect can be hardened a bit, instead of needlessly punishing the user with a long build + test that doesn't lead anywhere?
Warm regards,
Ram
next prev parent reply other threads:[~2022-01-09 20:48 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-09 19:29 git bisect bad @ Ramkumar Ramachandra
2022-01-09 19:54 ` Junio C Hamano
2022-01-09 20:48 ` Ramkumar Ramachandra [this message]
2022-01-10 9:01 ` [PATCH] bisect: report actual bisect_state() argument on error René Scharfe
2022-01-10 10:04 ` Ramkumar Ramachandra
2022-01-10 17:06 ` git bisect bad @ Junio C Hamano
2022-01-10 21:04 ` Ramkumar Ramachandra
2022-01-12 9:04 ` René Scharfe
2022-01-12 17:50 ` Junio C Hamano
2022-01-12 18:34 ` René Scharfe
2022-01-13 5:10 ` René Scharfe
2022-01-13 9:32 ` Ramkumar Ramachandra
2022-01-13 12:28 ` Christian Couder
2022-01-13 13:55 ` René Scharfe
2022-01-13 15:16 ` Ramkumar Ramachandra
2022-01-14 7:47 ` René Scharfe
2022-01-14 8:04 ` Ramkumar Ramachandra
2022-01-18 12:45 ` René Scharfe
2022-01-14 18:42 ` Junio C Hamano
2022-01-13 18:40 ` Junio C Hamano
2022-01-18 12:45 ` [PATCH v2 1/4] bisect--helper: report actual bisect_state() argument on error René Scharfe
2022-01-18 12:46 ` [PATCH v2 2/4] bisect--helper: release strbuf and strvec on run error René Scharfe
2022-01-18 12:46 ` [PATCH v2 3/4] bisect: document run behavior with exit codes 126 and 127 René Scharfe
2022-01-18 12:46 ` [PATCH v2 4/4] bisect--helper: double-check run command on exit code " René Scharfe
2022-01-19 2:36 ` Junio C Hamano
2022-01-19 7:52 ` René Scharfe
2022-02-04 0:42 ` Junio C Hamano
2022-02-04 17:16 ` René Scharfe
2022-02-04 18:16 ` Ramkumar Ramachandra
2022-02-04 19:32 ` Junio C Hamano
2022-02-04 18:09 ` Ramkumar Ramachandra
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