From: Patrick Steinhardt <ps@pks.im>
To: Karthik Nayak <karthik.188@gmail.com>
Cc: git@vger.kernel.org, Jeff King <peff@peff.net>
Subject: Re: [PATCH 3/3] refs: fix segfault in `is_pseudoref()` when ref cannot be resolved
Date: Tue, 30 Apr 2024 09:30:11 +0200 [thread overview]
Message-ID: <ZjCeAxbL9bufwGEN@tanuki> (raw)
In-Reply-To: <CAOLa=ZTCCgtQiQbm_GU--1+Yq-qYJANzTvRmvVrqNmzchkVevw@mail.gmail.com>
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On Mon, Apr 29, 2024 at 11:57:53AM -0700, Karthik Nayak wrote:
> > It is somewhat questionable in the first place that we declare a ref to
> > be a pseudorefe depending on whether it resolves to an object ID or not.
>
> s/pseudorefe/pseudoref
>
> [snip]
>
> Phillip Wood <phillip.wood123@gmail.com> writes:
> >> via the uninitialized value when calling `is_null_oid()`, which causes
> >> us to segfault.
> >>
> >> It is somewhat questionable in the first place that we declare a ref to
> >> be a pseudorefe depending on whether it resolves to an object ID or not.
> >
> > If I remember rightly Karthik added that check to avoid the files
> > backend calling a file with a name that matched the pseudoref syntax a
> > pseudoref when it wasn't actually a pseudoref.
>
> Not sure I follow. I think it was strictly done to ensure we don't
> consider symrefs as pseudorefs [1].
>
> [1]: https://lore.kernel.org/git/xmqqfrymeega.fsf@gitster.g/
And that's fair from a terminology perspective. But honestly, I really
doubt that any user will understand that REBASE_HEAD is a pseudoref when
it contains an object ID, but is not a pseudoref when it is a symref.
Anyway, as I've said in parallel mails, I want to change the definition
of what a pseudoref is. I just think that the current mess is understood
by nobody and doesn't make any sense.
I'll thus implicitly address this in my v2.
Patrick
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next prev parent reply other threads:[~2024-04-30 7:33 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 13:41 [PATCH 0/3] Clarify pseudo-ref terminology Patrick Steinhardt
2024-04-29 13:41 ` [PATCH 1/3] refs: move `is_special_ref()` Patrick Steinhardt
2024-04-29 13:41 ` [PATCH 2/3] refs: do not label special refs as pseudo refs Patrick Steinhardt
2024-04-29 15:12 ` Phillip Wood
2024-04-30 7:30 ` Patrick Steinhardt
2024-04-30 9:59 ` Phillip Wood
2024-04-30 12:11 ` Patrick Steinhardt
2024-04-30 10:23 ` Jeff King
2024-04-30 12:07 ` Karthik Nayak
2024-04-30 12:33 ` Patrick Steinhardt
2024-04-30 12:16 ` Patrick Steinhardt
2024-04-29 16:24 ` Junio C Hamano
2024-04-29 22:52 ` Justin Tobler
2024-04-30 7:29 ` Patrick Steinhardt
2024-05-09 17:29 ` Jean-Noël AVILA
2024-05-10 8:33 ` Patrick Steinhardt
2024-04-29 13:41 ` [PATCH 3/3] refs: fix segfault in `is_pseudoref()` when ref cannot be resolved Patrick Steinhardt
2024-04-29 15:25 ` Phillip Wood
2024-04-29 18:57 ` Karthik Nayak
2024-04-29 19:47 ` Phillip Wood
2024-04-29 20:44 ` Karthik Nayak
2024-04-30 7:30 ` Patrick Steinhardt [this message]
2024-04-30 12:26 ` [PATCH v2 00/10] Clarify pseudo-ref terminology Patrick Steinhardt
2024-04-30 12:26 ` [PATCH v2 01/10] Documentation/glossary: redefine pseudorefs as special refs Patrick Steinhardt
2024-04-30 12:49 ` Karthik Nayak
2024-04-30 17:17 ` Justin Tobler
2024-04-30 20:12 ` Junio C Hamano
2024-05-02 8:07 ` Patrick Steinhardt
2024-04-30 12:26 ` [PATCH v2 02/10] Documentation/glossary: clarify limitations of pseudorefs Patrick Steinhardt
2024-04-30 13:35 ` Kristoffer Haugsbakk
2024-04-30 12:26 ` [PATCH v2 03/10] Documentation/glossary: define root refs as refs Patrick Steinhardt
2024-04-30 12:56 ` Karthik Nayak
2024-04-30 12:26 ` [PATCH v2 04/10] refs: rename `is_pseudoref()` to `is_root_ref()` Patrick Steinhardt
2024-04-30 20:20 ` Junio C Hamano
2024-04-30 12:26 ` [PATCH v2 05/10] refs: refname `is_special_ref()` to `is_pseudo_ref()` Patrick Steinhardt
2024-04-30 12:58 ` Karthik Nayak
2024-04-30 12:26 ` [PATCH v2 06/10] refs: classify HEAD as a root ref Patrick Steinhardt
2024-04-30 12:26 ` [PATCH v2 07/10] refs: root refs can be symbolic refs Patrick Steinhardt
2024-04-30 17:09 ` Justin Tobler
2024-05-02 8:07 ` Patrick Steinhardt
2024-05-03 20:49 ` Justin Tobler
2024-05-07 10:32 ` Patrick Steinhardt
2024-04-30 12:26 ` [PATCH v2 08/10] refs: pseudorefs are no refs Patrick Steinhardt
2024-04-30 12:27 ` [PATCH v2 09/10] ref-filter: properly distinuish pseudo and root refs Patrick Steinhardt
2024-04-30 13:11 ` Karthik Nayak
2024-05-02 8:08 ` Patrick Steinhardt
2024-05-02 10:03 ` Karthik Nayak
2024-04-30 12:27 ` [PATCH v2 10/10] refs: refuse to write pseudorefs Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 00/10] Clarify pseudo-ref terminology Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 01/10] Documentation/glossary: redefine pseudorefs as special refs Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 02/10] Documentation/glossary: clarify limitations of pseudorefs Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 03/10] Documentation/glossary: define root refs as refs Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 04/10] refs: rename `is_pseudoref()` to `is_root_ref()` Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 05/10] refs: refname `is_special_ref()` to `is_pseudo_ref()` Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 06/10] refs: classify HEAD as a root ref Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 07/10] refs: root refs can be symbolic refs Patrick Steinhardt
2024-05-03 18:13 ` Jeff King
2024-05-15 4:16 ` Patrick Steinhardt
2024-05-15 4:39 ` Patrick Steinhardt
2024-05-15 6:22 ` Jeff King
2024-05-15 6:35 ` Patrick Steinhardt
2024-05-15 6:49 ` Jeff King
2024-05-15 6:59 ` Patrick Steinhardt
2024-05-15 6:20 ` Jeff King
2024-05-02 8:17 ` [PATCH v3 08/10] refs: pseudorefs are no refs Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 09/10] ref-filter: properly distinuish pseudo and root refs Patrick Steinhardt
2024-05-02 8:17 ` [PATCH v3 10/10] refs: refuse to write pseudorefs Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 00/10] Clarify pseudo-ref terminology Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 01/10] Documentation/glossary: redefine pseudorefs as special refs Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 02/10] Documentation/glossary: clarify limitations of pseudorefs Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 03/10] Documentation/glossary: define root refs as refs Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 04/10] refs: rename `is_pseudoref()` to `is_root_ref()` Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 05/10] refs: refname `is_special_ref()` to `is_pseudo_ref()` Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 06/10] refs: root refs can be symbolic refs Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 07/10] refs: classify HEAD as a root ref Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 08/10] refs: pseudorefs are no refs Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 09/10] ref-filter: properly distinuish pseudo and root refs Patrick Steinhardt
2024-05-10 8:48 ` [PATCH v4 10/10] refs: refuse to write pseudorefs Patrick Steinhardt
2024-05-10 18:59 ` [PATCH v4 00/10] Clarify pseudo-ref terminology Junio C Hamano
2024-05-15 6:50 ` [PATCH v5 " Patrick Steinhardt
2024-05-15 6:50 ` [PATCH v5 01/10] Documentation/glossary: redefine pseudorefs as special refs Patrick Steinhardt
2024-05-15 6:50 ` [PATCH v5 02/10] Documentation/glossary: clarify limitations of pseudorefs Patrick Steinhardt
2024-05-15 6:50 ` [PATCH v5 03/10] Documentation/glossary: define root refs as refs Patrick Steinhardt
2024-05-15 6:50 ` [PATCH v5 04/10] refs: rename `is_pseudoref()` to `is_root_ref()` Patrick Steinhardt
2024-05-15 6:50 ` [PATCH v5 05/10] refs: rename `is_special_ref()` to `is_pseudo_ref()` Patrick Steinhardt
2024-05-15 6:50 ` [PATCH v5 06/10] refs: do not check ref existence in `is_root_ref()` Patrick Steinhardt
2024-05-15 20:38 ` Justin Tobler
2024-05-16 4:13 ` Patrick Steinhardt
2024-05-15 6:50 ` [PATCH v5 07/10] refs: classify HEAD as a root ref Patrick Steinhardt
2024-05-15 20:44 ` Justin Tobler
2024-05-15 6:51 ` [PATCH v5 08/10] refs: pseudorefs are no refs Patrick Steinhardt
2024-05-15 6:51 ` [PATCH v5 09/10] ref-filter: properly distinuish pseudo and root refs Patrick Steinhardt
2024-05-15 6:51 ` [PATCH v5 10/10] refs: refuse to write pseudorefs Patrick Steinhardt
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