From: "brian m. carlson" <sandals@crustytoothpaste.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: Jeff King <peff@peff.net>, Adam Majer <adamm@zombino.com>,
git@vger.kernel.org
Subject: Re: git clone of empty repositories doesn't preserve hash
Date: Wed, 26 Apr 2023 00:20:00 +0000 [thread overview]
Message-ID: <ZEhuMML6n8F+cNLg@tapette.crustytoothpaste.net> (raw)
In-Reply-To: <xmqqcz3ry2sw.fsf@gitster.g>
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On 2023-04-25 at 23:12:15, Junio C Hamano wrote:
> "brian m. carlson" <sandals@crustytoothpaste.net> writes:
>
> > If nobody looks at this, I'll take a look tomorrow and hopefully send a
> > patch. I just wanted to point this out to the list right away in the
> > interest of getting it noticed.
>
> Thanks.
>
> The topic in question has been in 'master' for 2 weeks, since it was
> merged at 96f4113a (Merge branch 'jc/clone-object-format-from-void',
> 2023-04-11), and as I said, what your test demonstrates is not a
> regression caused by the topic but "was broken, did not get
> addressed, is still broken". So it does not sound like it needs
> "right away" kind of attention.
In my case, the clone is over HTTP, so this may not be the ideal way to
reproduce it and it may need a better testcase, but it does bisect to
the patch above and it is new in master (and doesn't reproduce in
2.40.0). Note that in our case in the Git LFS testsuite, we're using
GIT_DEFAULT_HASH=sha256.
I believe what is happening is that for some reason, the object-format
data in v0 and v1 is not being read properly, and so we're now setting
it to sha1 whereas before we were reading the value from the default
setting of the repository (sha256).
It very well may be that it's always been broken and this has just made
it obvious that it's broken, but I'll look tomorrow and probably send a
patch. I don't think we should revert this change, but I do think we
need to fix it before 2.41, since I think it means right now that all
clones over protocol v0 and v1 end up with a SHA-1 repository.
--
brian m. carlson (he/him or they/them)
Toronto, Ontario, CA
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next prev parent reply other threads:[~2023-04-26 0:20 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-05 10:28 git clone of empty repositories doesn't preserve hash Adam Majer
2023-04-05 19:04 ` Junio C Hamano
2023-04-05 19:47 ` Adam Majer
2023-04-05 20:01 ` Jeff King
2023-04-05 20:40 ` Junio C Hamano
2023-04-05 21:15 ` Junio C Hamano
2023-04-05 21:26 ` Jeff King
2023-04-05 22:48 ` brian m. carlson
2023-04-06 13:11 ` Adam Majer
2023-04-25 21:35 ` brian m. carlson
2023-04-25 22:24 ` Junio C Hamano
2023-04-25 23:12 ` Junio C Hamano
2023-04-26 0:20 ` brian m. carlson [this message]
2023-04-26 11:25 ` Jeff King
2023-04-26 15:08 ` Junio C Hamano
2023-04-26 15:13 ` [PATCH] doc: GIT_DEFAULT_HASH is and will be ignored during "clone" Junio C Hamano
2023-04-26 21:06 ` brian m. carlson
2023-04-27 4:46 ` git clone of empty repositories doesn't preserve hash Jeff King
2023-04-26 10:51 ` Jeff King
2023-04-26 15:42 ` Junio C Hamano
2023-04-26 20:40 ` brian m. carlson
2023-04-26 20:53 ` [PATCH 0/2] Fix empty SHA-256 clones with v0 and v1 brian m. carlson
2023-04-26 20:53 ` [PATCH 1/2] http: advertise capabilities when cloning empty repos brian m. carlson
2023-04-26 21:14 ` Junio C Hamano
2023-04-26 21:28 ` brian m. carlson
2023-04-27 5:00 ` Jeff King
2023-04-27 5:30 ` Jeff King
2023-04-27 20:40 ` Junio C Hamano
2023-04-26 20:53 ` [PATCH 2/2] Honor GIT_DEFAULT_HASH for empty clones without remote algo brian m. carlson
2023-04-26 21:18 ` Junio C Hamano
2023-04-26 21:33 ` Junio C Hamano
2023-04-27 5:43 ` Jeff King
2023-05-02 23:46 ` Is GIT_DEFAULT_HASH flawed? Felipe Contreras
2023-05-03 9:03 ` Adam Majer
2023-05-03 15:44 ` Felipe Contreras
2023-05-03 17:21 ` Adam Majer
2023-05-08 0:34 ` Felipe Contreras
2023-05-03 9:09 ` demerphq
2023-05-03 18:20 ` Felipe Contreras
2023-05-03 22:54 ` brian m. carlson
2023-05-08 2:00 ` Felipe Contreras
2023-05-08 21:38 ` brian m. carlson
2023-05-09 10:32 ` Oswald Buddenhagen
2023-05-09 16:47 ` Junio C Hamano
2023-04-26 21:12 ` [PATCH 0/2] Fix empty SHA-256 clones with v0 and v1 Junio C Hamano
2023-04-27 4:56 ` git clone of empty repositories doesn't preserve hash Jeff King
2023-05-01 17:00 ` [PATCH v2 0/1] Fix empty SHA-256 clones with v0 and v1 brian m. carlson
2023-05-01 17:00 ` [PATCH v2 1/1] upload-pack: advertise capabilities when cloning empty repos brian m. carlson
2023-05-01 22:40 ` Jeff King
2023-05-01 22:51 ` Junio C Hamano
2023-05-01 17:37 ` [PATCH v2 0/1] Fix empty SHA-256 clones with v0 and v1 Junio C Hamano
2023-05-17 19:24 ` [PATCH v3 " brian m. carlson
2023-05-17 19:24 ` [PATCH v3 1/1] upload-pack: advertise capabilities when cloning empty repos brian m. carlson
2023-05-17 21:48 ` [PATCH v3 0/1] Fix empty SHA-256 clones with v0 and v1 Junio C Hamano
2023-05-17 22:28 ` brian m. carlson
2023-05-18 18:28 ` Jeff King
2023-05-19 15:32 ` brian m. carlson
2023-04-05 21:23 ` git clone of empty repositories doesn't preserve hash Jeff King
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