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From: Junio C Hamano <gitster@pobox.com>
To: "Rubén Justo" <rjusto@gmail.com>
Cc: Git List <git@vger.kernel.org>,
	Phillip Wood <phillip.wood@dunelm.org.uk>
Subject: Re: [PATCH] bisect: fix "reset" when branch is checked out elsewhere
Date: Mon, 06 Feb 2023 11:04:58 -0800	[thread overview]
Message-ID: <xmqqwn4u7gyt.fsf@gitster.g> (raw)
In-Reply-To: <a66218a3-919d-eca2-1859-41ac02aa38e7@gmail.com> ("Rubén Justo"'s message of "Sat, 4 Feb 2023 23:46:47 +0100")

Rubén Justo <rjusto@gmail.com> writes:

> The devil is in the details: "git branch -m", "git branch -d".
>
> We're not ready to have BISECT_START pointing to a deleted branch, or
> renaming a branch pointed by it.

It indicates that the callers of find_shared_symref() to see if "is
this branch being actively used by checked out, bisected, or
rebased, and I shouldn't touch it?" need to know more than what
find_shared_symref() interface gives them---namely, "can I repoint
it to a different commit?" and "can I make it disappear?" are
different conditions they need to be able to learn.

Until that distinction becomes expressible, I am actually OK with
forbidding both operations, i.e. while a branch is being bisected
elsewhere, we should be able to update its tip to point at a
different commit, but it is OK to forbid that because we cannot
allow the branch be renamed away or removed.

Thanks.

  reply	other threads:[~2023-02-06 19:05 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-22  1:38 [PATCH] bisect: fix "reset" when branch is checked out elsewhere Rubén Justo
2023-01-23  2:01 ` Junio C Hamano
2023-01-26  2:18   ` Rubén Justo
2023-01-26 17:06     ` Junio C Hamano
2023-01-26 17:13       ` Junio C Hamano
2023-02-04 22:46       ` Rubén Justo
2023-02-06 19:04         ` Junio C Hamano [this message]
2023-02-04 22:57 ` [PATCH v2] " Rubén Justo
2023-02-06 22:29   ` Junio C Hamano
2023-02-08  0:30     ` Rubén Justo
2023-02-08  5:16       ` Junio C Hamano
2023-02-08 21:54         ` Rubén Justo
2023-02-15  4:52   ` Eric Sunshine
2023-02-15 22:20     ` Rubén Justo
2023-02-20 22:53   ` [PATCH v3] " Rubén Justo

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