From: Junio C Hamano <gitster@pobox.com>
To: git@vger.kernel.org
Cc: Patrick Steinhardt <ps@pks.im>
Subject: Re: [PATCH v4 4/5] builtin/hash-object: fix uninitialized hash function
Date: Fri, 17 May 2024 16:49:05 -0700 [thread overview]
Message-ID: <xmqqmsoodmoe.fsf@gitster.g> (raw)
In-Reply-To: <20240514011437.3779151-5-gitster@pobox.com> (Junio C. Hamano's message of "Mon, 13 May 2024 18:14:36 -0700")
Junio C Hamano <gitster@pobox.com> writes:
> From: Patrick Steinhardt <ps@pks.im>
>
> The git-hash-object(1) command allows users to hash an object even
> without a repository. Starting with c8aed5e8da (repository: stop setting
> SHA1 as the default object hash, 2024-05-07), this will make us hit an
> uninitialized hash function, which subsequently leads to a segfault.
>
> Fix this by falling back to SHA-1 explicitly when running outside of
> a Git repository. Users can use GIT_DEFAULT_HASH environment to
> specify what hash algorithm they want, so arguably this code should
> not be needed.
By the way, this breaks the expectation of t1007 and t1517 when run
with GIT_DEFAULT_HASH=sha256 (I recall that they passed with the
earlier iteration of my "fall back to GIT_DEFAULT_HASH" in [1/5],
but we decided abusing GIT_DEFAULT_HASH is a bad idea).
https://github.com/git/git/actions/runs/9135149292/job/25122031380
next prev parent reply other threads:[~2024-05-17 23:49 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-13 7:15 [PATCH 0/2] Fix use of uninitialized hash algos Patrick Steinhardt
2024-05-13 7:15 ` [PATCH 1/2] builtin/patch-id: fix uninitialized hash function Patrick Steinhardt
2024-05-13 7:15 ` [PATCH 2/2] builtin/hash-object: " Patrick Steinhardt
2024-05-14 0:16 ` Junio C Hamano
2024-05-13 16:01 ` [PATCH 0/2] Fix use of uninitialized hash algos Junio C Hamano
2024-05-13 18:36 ` Junio C Hamano
2024-05-13 19:21 ` [PATCH v2 0/4] Fix use of uninitialized hash algorithms Junio C Hamano
2024-05-13 19:21 ` [PATCH v2 1/4] setup: add an escape hatch for "no more default hash algorithm" change Junio C Hamano
2024-05-13 19:48 ` Kyle Lippincott
2024-05-13 19:21 ` [PATCH v2 2/4] t1517: test commands that are designed to be run outside repository Junio C Hamano
2024-05-13 19:57 ` Kyle Lippincott
2024-05-13 20:33 ` Junio C Hamano
2024-05-13 21:00 ` Junio C Hamano
2024-05-13 21:07 ` Kyle Lippincott
2024-05-13 19:21 ` [PATCH v2 3/4] builtin/patch-id: fix uninitialized hash function Junio C Hamano
2024-05-13 19:21 ` [PATCH v2 4/4] builtin/hash-object: " Junio C Hamano
2024-05-13 21:28 ` [PATCH 5/4] apply: " Junio C Hamano
2024-05-13 22:41 ` [PATCH v3 0/5] Fix use of uninitialized hash algorithms Junio C Hamano
2024-05-13 22:41 ` [PATCH v3 1/5] setup: add an escape hatch for "no more default hash algorithm" change Junio C Hamano
2024-05-13 22:41 ` [PATCH v3 2/5] t1517: test commands that are designed to be run outside repository Junio C Hamano
2024-05-13 22:41 ` [PATCH v3 3/5] builtin/patch-id: fix uninitialized hash function Junio C Hamano
2024-05-13 23:11 ` Junio C Hamano
2024-05-14 4:31 ` Patrick Steinhardt
2024-05-14 15:52 ` Junio C Hamano
2024-05-13 22:41 ` [PATCH v3 4/5] builtin/hash-object: " Junio C Hamano
2024-05-13 23:13 ` Junio C Hamano
2024-05-14 4:32 ` Patrick Steinhardt
2024-05-14 15:55 ` Junio C Hamano
2024-05-13 22:41 ` [PATCH v3 5/5] apply: " Junio C Hamano
2024-05-14 1:14 ` [PATCH v4 0/5] Fix use of uninitialized hash algorithms Junio C Hamano
2024-05-14 1:14 ` [PATCH v4 1/5] setup: add an escape hatch for "no more default hash algorithm" change Junio C Hamano
2024-05-14 4:32 ` Patrick Steinhardt
2024-05-14 15:05 ` Junio C Hamano
2024-05-14 17:19 ` Junio C Hamano
2024-05-15 12:23 ` Patrick Steinhardt
2024-05-16 15:31 ` Junio C Hamano
2024-05-14 1:14 ` [PATCH v4 2/5] t1517: test commands that are designed to be run outside repository Junio C Hamano
2024-05-14 4:32 ` Patrick Steinhardt
2024-05-14 15:08 ` Junio C Hamano
2024-05-15 12:24 ` Patrick Steinhardt
2024-05-15 14:15 ` Junio C Hamano
2024-05-15 14:25 ` Patrick Steinhardt
2024-05-15 15:40 ` Junio C Hamano
2024-05-14 1:14 ` [PATCH v4 3/5] builtin/patch-id: fix uninitialized hash function Junio C Hamano
2024-05-14 1:14 ` [PATCH v4 4/5] builtin/hash-object: " Junio C Hamano
2024-05-17 23:49 ` Junio C Hamano [this message]
2024-05-20 21:19 ` Junio C Hamano
2024-05-20 22:45 ` Junio C Hamano
2024-05-14 1:14 ` [PATCH v4 5/5] apply: " Junio C Hamano
2024-05-20 23:14 ` [PATCH v5 0/5] Fix use of uninitialized hash algorithms Junio C Hamano
2024-05-20 23:14 ` [PATCH v5 1/5] setup: add an escape hatch for "no more default hash algorithm" change Junio C Hamano
2024-05-21 7:57 ` Patrick Steinhardt
2024-05-21 15:59 ` Junio C Hamano
2024-05-20 23:14 ` [PATCH v5 2/5] t1517: test commands that are designed to be run outside repository Junio C Hamano
2024-05-20 23:14 ` [PATCH v5 3/5] builtin/patch-id: fix uninitialized hash function Junio C Hamano
2024-05-20 23:14 ` [PATCH v5 4/5] builtin/hash-object: " Junio C Hamano
2024-05-20 23:14 ` [PATCH v5 5/5] apply: " Junio C Hamano
2024-05-21 7:58 ` Patrick Steinhardt
2024-05-21 13:36 ` Junio C Hamano
2024-05-21 7:58 ` [PATCH v5 0/5] Fix use of uninitialized hash algorithms Patrick Steinhardt
2024-05-21 18:07 ` Junio C Hamano
2024-05-22 4:51 ` Patrick Steinhardt
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