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From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: "brian m. carlson" <sandals@crustytoothpaste.net>,
	git@vger.kernel.org, Adam Majer <adamm@zombino.com>
Subject: Re: [PATCH 1/2] http: advertise capabilities when cloning empty repos
Date: Thu, 27 Apr 2023 13:40:23 -0700	[thread overview]
Message-ID: <xmqq8redjbyg.fsf@gitster.g> (raw)
In-Reply-To: <20230427053016.GD982277@coredump.intra.peff.net> (Jeff King's message of "Thu, 27 Apr 2023 01:30:16 -0400")

Jeff King <peff@peff.net> writes:

> So I think in this hunk:
>
>> @@ -1379,6 +1381,8 @@ void upload_pack(const int advertise_refs, const int stateless_rpc,
>>  			data.no_done = 1;
>>  		head_ref_namespaced(send_ref, &data);
>>  		for_each_namespaced_ref(send_ref, &data);
>> +		if (!data.sent_capabilities && advertise_refs)
>> +			send_ref("capabilities^{}", null_oid(), 0, &data);
>>  		/*
>>  		 * fflush stdout before calling advertise_shallow_grafts because send_ref
>>  		 * uses stdio.
>
> you would want to drop the "&& advertise_refs" bit, after which both of
> the cases above would yield a sha256 repository.

Good suggestion.

>> +test_expect_success 'clone empty SHA-256 repository with protocol v0' '
>> +	rm -fr sha256 &&
>> +	echo sha256 >expected &&
>> +	GIT_TRACE=1 GIT_TRACE_PACKET=1 git -c protocol.version=0 clone "$HTTPD_URL/smart/sha256.git" &&
>> +	git -C sha256 rev-parse --show-object-format >actual &&
>> +	test_cmp actual expected &&
>> +	git ls-remote "$HTTPD_URL/smart/sha256.git" >actual &&
>> +	test_must_be_empty actual
>> +'
>
> This looks reasonable, though I think if we do not need HTTP to
> demonstrate the issue (and I don't think we do), then we should probably
> avoid it, just to get test coverage on platforms that don't support
> HTTP.

HTTP tests tend to be more cumbersome to set up and harder to debug
than the plain vanilla "over the pipe on the same machine"
transport, so I tend to agree with the statement.

They however represent a more common use case, so having HTTP tests
in addition to non-HTTP tests would be nicer, if we can afford to.

Thanks.


  reply	other threads:[~2023-04-27 20:40 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
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 [this message]
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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