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From: Junio C Hamano <gitster@pobox.com>
To: Toon Claes <toon@iotcl.com>
Cc: git@vger.kernel.org, phillip.wood123@gmail.com
Subject: Re: [PATCH v4 1/2] cat-file: extract printing batch error message into function
Date: Fri, 03 Mar 2023 15:14:16 -0800	[thread overview]
Message-ID: <xmqqilfhctrr.fsf@gitster.g> (raw)
In-Reply-To: <xmqqcz5peg3v.fsf@gitster.g> (Junio C. Hamano's message of "Fri, 03 Mar 2023 12:26:28 -0800")

Junio C Hamano <gitster@pobox.com> writes:

> As batch_object_cb() makes a call to batch_object_write() with
> obj_name set to NULL, I do not think this change is defensible,
> though.

This indeed seems to break t5313 when queued on top of 'master'; it
tries to run "git cat-file --batch-all-objects --batch-check" and
hits the exact codepath where a missing object is sent to the error
codepath without obj_name set to anything.

I guess we now have an existing test that you can mimic that
exhibits "missing" error?  I do not know offhand if this test
already qualifies as the test coverage Phillip wanted to make sure
exists.

..... >8 .......... >8 .......... >8 .......... >8 .......... >8 .....

expecting success of 5313.3 'pack/index object count mismatch': 
	do_pack $object &&
	munge $pack 8 "\377\0\0\0" &&
	clear_base &&

	# We enumerate the objects from the completely-fine
	# .idx, but notice later that the .pack is bogus
	# and fail to show any data.
	echo "$object missing" >expect &&
	git cat-file --batch-all-objects --batch-check >actual &&
	test_cmp expect actual &&

	# ...and here fail to load the object (without segfaulting),
	# but fallback to a good copy if available.
	test_must_fail git cat-file blob $object &&
	restore_base &&
	git cat-file blob $object >actual &&
	test_cmp file actual &&

	# ...and make sure that index-pack --verify, which has its
	# own reading routines, does not segfault.
	test_must_fail git index-pack --verify $pack

4+0 records in
4+0 records out
4 bytes copied, 0.000119221 s, 33.6 kB/s
error: packfile .git/objects/pack/pack-67be769e2843d598c78218852612520795998892.pack claims to have 4278190080 objects while index indicates 1 objects
error: packfile .git/objects/pack/pack-67be769e2843d598c78218852612520795998892.pack claims to have 4278190080 objects while index indicates 1 objects
--- expect	2023-03-03 23:11:37.504011940 +0000
+++ actual	2023-03-03 23:11:37.508012250 +0000
@@ -1 +1 @@
-fff0a2476aa5c8e60a3ef21cfc66e0cc670920be missing
+(null) missing
not ok 3 - pack/index object count mismatch

  reply	other threads:[~2023-03-03 23:14 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-09 15:00 [PATCH 0/1] cat-file: quote-format name in error when using -z Toon Claes
2022-12-09 15:00 ` [PATCH 1/1] " Toon Claes
2022-12-09 19:33   ` Phillip Wood
2022-12-09 23:58     ` Junio C Hamano
2022-12-11 16:30       ` Phillip Wood
2022-12-12  0:11         ` Junio C Hamano
2022-12-12 11:34           ` Toon Claes
2022-12-12 22:09             ` Junio C Hamano
2022-12-13 15:06           ` Phillip Wood
2022-12-14  8:29             ` Junio C Hamano
2022-12-20  5:31     ` Toon Claes
2022-12-20 10:18       ` Phillip Wood
2022-12-21 12:42         ` Toon Claes
2023-01-05  6:24 ` [PATCH v2 0/1] " Toon Claes
2023-01-05  6:24   ` [PATCH v2 1/1] " Toon Claes
2023-01-16 19:07   ` [PATCH v3 0/1] " Toon Claes
2023-01-16 19:07     ` [PATCH v3 1/1] " Toon Claes
2023-01-17 15:24       ` Phillip Wood
2023-03-03 19:17     ` [PATCH v4 0/2] " Toon Claes
2023-03-03 19:17       ` [PATCH v4 1/2] cat-file: extract printing batch error message into function Toon Claes
2023-03-03 20:26         ` Junio C Hamano
2023-03-03 23:14           ` Junio C Hamano [this message]
2023-05-10 19:01             ` [PATCH v5 0/1] cat-file: quote-format name in error when using -z Toon Claes
2023-05-10 19:01               ` [PATCH v5 1/1] " Toon Claes
2023-05-10 20:13                 ` Junio C Hamano
2023-05-12  8:54                   ` Toon Claes
2023-05-12 16:57                     ` Junio C Hamano
2023-05-15  8:47                       ` Phillip Wood
2023-05-15 17:20                         ` Junio C Hamano
2023-06-02 13:29                           ` Phillip Wood
2023-03-03 19:17       ` [PATCH v4 2/2] " Toon Claes
2023-03-03 20:14       ` [PATCH v4 0/2] " Junio C Hamano

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