From: "Randall S. Becker" <rsbecker@nexbridge.com>
To: "'Junio C Hamano'" <gitster@pobox.com>,
"'Ævar Arnfjörð Bjarmason'" <avarab@gmail.com>
Cc: <git@vger.kernel.org>, "'Jeff King'" <peff@peff.net>,
"'brian m . carlson'" <sandals@crustytoothpaste.net>,
"'Bagas Sanjaya'" <bagasdotme@gmail.com>
Subject: RE: [PATCH v2 0/8] post-v2.33 "drop support for ancient curl" follow-up
Date: Fri, 10 Sep 2021 13:06:52 -0400 [thread overview]
Message-ID: <024f01d7a666$4338a620$c9a9f260$@nexbridge.com> (raw)
In-Reply-To: <xmqqr1dwtlt1.fsf@gitster.g>
On September 10, 2021 12:53 PM, Junio C Hamano wrote:
>To: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
>Cc: git@vger.kernel.org; Jeff King <peff@peff.net>; brian m . carlson <sandals@crustytoothpaste.net>; Bagas Sanjaya
><bagasdotme@gmail.com>
>Subject: Re: [PATCH v2 0/8] post-v2.33 "drop support for ancient curl" follow-up
>
>Ævar Arnfjörð Bjarmason <avarab@gmail.com> writes:
>
>> Version 1 of this had a really bad bug where we'd effectively make all
>> supported curl versions act like 7.19.4, i.e. the oldest supported
>> version except for a couple of our supported features. This is because
>> most of the things checked with the "ifdef" checks are enum fields,
>> not macros. So basically the "devil's advocate" Jeff King pointed out
>> in [2] was already the case. Oops!
>
>Wow. Thanks for bothering to actually test ;-)
>
>Because we learned that "#ifdef CURL_SOME_FEATURE_WE_WANT" is not a generally applicable way to conditionally build for various
>features and we'd need to switch on the version numbers, it is now clear (at least to me) that the central registry approach would be a
>direction to go.
>
>> In this v2 we're instead checking LIBCURL_VERSION_NUM consistently,
>> even in those cases where we are checking things that are defined via
>> macros.
>
>Nice.
>
>> ++ * For each X symbol we need from curl we define our own
>> ++ * GIT_CURL_HAVE_X. If multiple similar symbols with the same prefix
>> ++ * were defined in the same version we pick one and check for that name.
>> + *
>> + * Keep any symbols in date order of when their support was
>> + * introduced, oldest first, in the official version of cURL library.
>> @@ git-curl-compat.h (new)
>> +/**
>> + * CURLOPT_TCP_KEEPALIVE was added in 7.25.0, released in March 2012.
>> + */
>> -+#ifdef CURLOPT_TCP_KEEPALIVE
>> ++#if LIBCURL_VERSION_NUM >= 0x071900
>> +#define GITCURL_HAVE_CURLOPT_TCP_KEEPALIVE 1
>> +#endif
>
>What we have in the posted patch is perfectly OK and serviceable, but this organization somewhat surprised me.
>
>Instead of one #if...#endif block per a feature macro, I expected to see a sequence of
>
> /* 7.34.0 (0x072200) - Dec 2013 */
> #if 0x072200 < VERSION
> #define HAVE_FOO 1
> #define HAVE_BAR 1
> ...
> #endif
>
> /* 7.25.0 (0x071900) - March 2012 */
> #if 0x071900 < VERSION
> #define HAVE_BAZ 1
> #define HAVE_QUX 1
> ...
> #endif
>
>
>because it would make it more clear which features can now be unconditionally used when we raise the cut-off point for the oldest
>supported version if we group these entries along the versions.
>
>Thanks.
Not that it might matter much, but both NonStop platforms are now on curl 7.78.0 and we are deploying git under OpenSSL 3 this week or next. So any objections I might previously have had are now fortunately really moot.
Cheers,
-Randall
next prev parent reply other threads:[~2021-09-10 17:07 UTC|newest]
Thread overview: 173+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-09 12:00 [PATCH 0/4] dropping support for older curl Jeff King
2017-08-09 12:01 ` [PATCH 1/4] http: drop support for curl < 7.11.1 Jeff King
2017-08-09 12:01 ` [PATCH 2/4] http: drop support for curl < 7.16.0 Jeff King
2017-08-09 17:29 ` Stefan Beller
2017-08-09 21:13 ` Jeff King
2017-08-09 17:40 ` Junio C Hamano
2017-08-09 18:03 ` Nicolas Morey-Chaisemartin
2017-08-09 21:17 ` Jeff King
2017-08-09 21:29 ` Nicolas Morey-Chaisemartin
2017-08-09 21:49 ` Jeff King
2017-08-09 21:15 ` Jeff King
2017-08-09 12:02 ` [PATCH 3/4] http: drop support for curl < 7.19.4 Jeff King
2017-08-09 13:14 ` Ævar Arnfjörð Bjarmason
2017-08-09 13:38 ` Jeff King
2017-08-09 13:49 ` [PATCH 5/4] curl: remove ifdef'd code never used with curl >=7.19.4 Ævar Arnfjörð Bjarmason
2017-08-09 17:34 ` [PATCH 3/4] http: drop support for curl < 7.19.4 Stefan Beller
2017-08-09 21:19 ` Jeff King
2017-08-10 12:36 ` Mischa POSLAWSKY
2017-08-10 17:34 ` Jeff King
2017-08-09 12:02 ` [PATCH 4/4] http: #error on too-old curl Jeff King
2017-08-09 17:37 ` Stefan Beller
2017-08-09 21:42 ` [PATCH 0/4] dropping support for older curl Johannes Schindelin
2017-08-09 21:47 ` Jeff King
2017-08-10 9:01 ` Tom G. Christensen
2017-08-10 9:36 ` Johannes Schindelin
2017-08-10 21:33 ` Jeff King
2017-08-10 22:17 ` Junio C Hamano
2017-08-10 23:09 ` Jeff King
2017-08-11 0:17 ` Jeff King
[not found] ` <CAHVLzcnnrABmkYNg31Aq99NgBbyuCKEM60pHGygyjXbjmaUEYQ@mail.gmail.com>
2017-08-14 21:50 ` Johannes Schindelin
2017-08-10 20:33 ` Tom G. Christensen
2017-08-10 21:32 ` Jeff King
2017-08-10 22:23 ` Tom G. Christensen
2017-08-10 22:54 ` Jeff King
2017-08-10 23:17 ` Tom G. Christensen
2017-08-10 23:23 ` Jeff King
2017-08-10 23:36 ` Tom G. Christensen
2017-08-11 16:37 ` [PATCH 0/2] http: handle curl with vendor backports Tom G. Christensen
2017-08-11 22:15 ` Junio C Hamano
2017-08-12 6:20 ` Tom G. Christensen
2017-08-20 8:47 ` Jeff King
2017-08-20 16:28 ` Junio C Hamano
2017-08-23 15:41 ` Jeff King
2017-08-11 16:37 ` [PATCH 1/2] http: Fix handling of missing CURLPROTO_* Tom G. Christensen
2017-08-12 0:30 ` Junio C Hamano
2017-08-12 9:04 ` Tom G. Christensen
2017-08-20 8:59 ` Jeff King
2017-08-11 16:37 ` [PATCH 2/2] http: use a feature check to enable GSSAPI delegation control Tom G. Christensen
2017-08-09 23:39 ` [PATCH 0/4] dropping support for older curl Ævar Arnfjörð Bjarmason
[not found] ` <87zib8g8ub.fsf@gmail.com>
2017-08-10 10:04 ` Dropping support for older perl Tom G. Christensen
2021-07-21 22:22 ` [PATCH v2 0/5] drop support for ancient curl Ævar Arnfjörð Bjarmason
2021-07-21 22:22 ` [PATCH v2 1/5] http: drop support for curl < 7.11.1 Ævar Arnfjörð Bjarmason
2021-07-21 22:56 ` Junio C Hamano
2021-07-21 22:22 ` [PATCH v2 2/5] http: drop support for curl < 7.16.0 Ævar Arnfjörð Bjarmason
2021-07-21 22:22 ` [PATCH v2 3/5] http: drop support for curl < 7.19.4 Ævar Arnfjörð Bjarmason
2021-07-21 23:05 ` Junio C Hamano
2021-07-21 22:22 ` [PATCH v2 4/5] http: drop support for curl < 7.19.3 and < 7.16.4 (again) Ævar Arnfjörð Bjarmason
2021-07-21 23:17 ` Junio C Hamano
2021-07-21 22:22 ` [PATCH v2 5/5] http: rename CURLOPT_FILE to CURLOPT_WRITEDATA Ævar Arnfjörð Bjarmason
2021-07-21 23:19 ` Junio C Hamano
2021-07-21 22:39 ` [PATCH v2 0/5] drop support for ancient curl Junio C Hamano
2021-07-21 22:56 ` brian m. carlson
2021-07-22 7:09 ` Ævar Arnfjörð Bjarmason
2021-07-22 22:56 ` brian m. carlson
2021-07-23 7:17 ` Ævar Arnfjörð Bjarmason
2021-07-22 6:27 ` Bagas Sanjaya
2021-07-23 10:16 ` Jeff King
2021-07-23 16:21 ` Junio C Hamano
2021-07-23 16:49 ` Randall S. Becker
2021-07-24 1:19 ` Jeff King
2021-07-30 9:31 ` [PATCH v3 0/7] drop support for ancient curl, improve version checks Ævar Arnfjörð Bjarmason
2021-07-30 9:31 ` [PATCH v3 1/7] http: drop support for curl < 7.11.1 Ævar Arnfjörð Bjarmason
2021-07-30 9:31 ` [PATCH v3 2/7] http: drop support for curl < 7.16.0 Ævar Arnfjörð Bjarmason
2021-07-30 9:31 ` [PATCH v3 3/7] http: drop support for curl < 7.19.4 Ævar Arnfjörð Bjarmason
2021-07-30 9:31 ` [PATCH v3 4/7] http: drop support for curl < 7.19.3 and <= 7.16.4 (or <7.17.0) (again) Ævar Arnfjörð Bjarmason
2021-07-30 16:18 ` Junio C Hamano
2021-07-30 9:31 ` [PATCH v3 5/7] http: drop support for curl < 7.18.0 (again) Ævar Arnfjörð Bjarmason
2021-07-30 16:22 ` Junio C Hamano
2021-07-30 9:31 ` [PATCH v3 6/7] http: rename CURLOPT_FILE to CURLOPT_WRITEDATA Ævar Arnfjörð Bjarmason
2021-07-30 9:31 ` [PATCH v3 7/7] http: centralize the accounting of libcurl dependencies Ævar Arnfjörð Bjarmason
2021-07-30 16:47 ` Junio C Hamano
2021-07-30 17:59 ` [PATCH v4 0/5] drop support for ancient curl Ævar Arnfjörð Bjarmason
2021-07-30 17:59 ` [PATCH v4 1/5] http: drop support for curl < 7.11.1 Ævar Arnfjörð Bjarmason
2021-07-30 17:59 ` [PATCH v4 2/5] http: drop support for curl < 7.16.0 Ævar Arnfjörð Bjarmason
2021-09-10 22:28 ` Andrei Rybak
2021-09-11 14:32 ` Jeff King
2021-09-11 21:39 ` Junio C Hamano
2021-09-11 21:58 ` Jeff King
2021-07-30 17:59 ` [PATCH v4 3/5] http: drop support for curl < 7.19.4 Ævar Arnfjörð Bjarmason
2021-07-30 17:59 ` [PATCH v4 4/5] http: drop support for curl < 7.19.3 and < 7.17.0 (again) Ævar Arnfjörð Bjarmason
2021-07-30 17:59 ` [PATCH v4 5/5] http: rename CURLOPT_FILE to CURLOPT_WRITEDATA Ævar Arnfjörð Bjarmason
2021-07-30 19:03 ` [PATCH v4 0/5] drop support for ancient curl Junio C Hamano
2021-07-30 19:50 ` Junio C Hamano
2021-07-30 22:49 ` Junio C Hamano
2021-09-08 15:31 ` [PATCH 0/5] post-v2.33 "drop support for ancient curl" follow-up Ævar Arnfjörð Bjarmason
2021-09-08 15:31 ` [PATCH 1/5] http: drop support for curl < 7.18.0 (again) Ævar Arnfjörð Bjarmason
2021-09-09 22:58 ` Junio C Hamano
2021-09-08 15:31 ` [PATCH 2/5] http: correct curl version check for CURLOPT_PINNEDPUBLICKEY Ævar Arnfjörð Bjarmason
2021-09-08 19:22 ` Jeff King
2021-09-09 23:12 ` Junio C Hamano
2021-09-10 14:19 ` Jeff King
2021-09-10 14:30 ` Jeff King
2021-09-10 14:37 ` Ævar Arnfjörð Bjarmason
2021-09-10 15:28 ` Jeff King
2021-09-10 15:45 ` Daniel Stenberg
2021-09-10 19:41 ` Ævar Arnfjörð Bjarmason
2021-09-10 21:57 ` Daniel Stenberg
2021-09-08 15:31 ` [PATCH 3/5] http: correct version check for CURL_HTTP_VERSION_2_0 Ævar Arnfjörð Bjarmason
2021-09-08 19:27 ` Jeff King
2021-09-08 15:31 ` [PATCH 4/5] http: centralize the accounting of libcurl dependencies Ævar Arnfjörð Bjarmason
2021-09-08 19:31 ` Jeff King
2021-09-09 17:40 ` Junio C Hamano
2021-09-09 19:26 ` Jeff King
2021-09-08 15:31 ` [PATCH 5/5] http: don't hardcode the value of CURL_SOCKOPT_OK Ævar Arnfjörð Bjarmason
2021-09-09 23:15 ` Junio C Hamano
2021-09-09 23:22 ` Junio C Hamano
2021-09-08 19:32 ` [PATCH 0/5] post-v2.33 "drop support for ancient curl" follow-up Jeff King
2021-09-10 11:04 ` [PATCH v2 0/8] " Ævar Arnfjörð Bjarmason
2021-09-10 11:04 ` [PATCH v2 1/8] INSTALL: don't mention the "curl" executable at all Ævar Arnfjörð Bjarmason
2021-09-10 14:53 ` Jeff King
2021-09-10 11:04 ` [PATCH v2 2/8] INSTALL: mention that we need libcurl 7.19.4 or newer to build Ævar Arnfjörð Bjarmason
2021-09-10 14:54 ` Jeff King
2021-09-10 16:56 ` Junio C Hamano
2021-09-10 17:46 ` Jeff King
2021-09-10 11:04 ` [PATCH v2 3/8] Makefile: drop support for curl < 7.9.8 (again) Ævar Arnfjörð Bjarmason
2021-09-10 15:04 ` Jeff King
2021-09-10 11:04 ` [PATCH v2 4/8] http: drop support for curl < 7.18.0 (again) Ævar Arnfjörð Bjarmason
2021-09-10 11:04 ` [PATCH v2 5/8] http: correct version check for CURL_HTTP_VERSION_2 Ævar Arnfjörð Bjarmason
2021-09-10 15:09 ` Jeff King
2021-09-10 15:20 ` Daniel Stenberg
2021-09-10 15:41 ` Jeff King
2021-09-10 17:19 ` Ævar Arnfjörð Bjarmason
2021-09-10 11:04 ` [PATCH v2 6/8] http: correct curl version check for CURLOPT_PINNEDPUBLICKEY Ævar Arnfjörð Bjarmason
2021-09-10 17:00 ` Junio C Hamano
2021-09-10 11:04 ` [PATCH v2 7/8] http: centralize the accounting of libcurl dependencies Ævar Arnfjörð Bjarmason
2021-09-10 15:15 ` Jeff King
2021-09-10 11:04 ` [PATCH v2 8/8] http: don't hardcode the value of CURL_SOCKOPT_OK Ævar Arnfjörð Bjarmason
2021-09-10 15:17 ` Jeff King
2021-09-10 14:37 ` [PATCH v2 0/8] post-v2.33 "drop support for ancient curl" follow-up Jeff King
2021-09-10 15:08 ` Ævar Arnfjörð Bjarmason
2021-09-10 15:20 ` Jeff King
2021-09-10 16:52 ` Junio C Hamano
2021-09-10 17:06 ` Randall S. Becker [this message]
2021-09-10 17:42 ` Ævar Arnfjörð Bjarmason
2021-09-10 17:14 ` Junio C Hamano
2021-09-10 17:32 ` Junio C Hamano
2021-09-10 19:05 ` Konstantin Ryabitsev
2021-09-10 19:49 ` Junio C Hamano
2021-09-10 17:47 ` Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 0/9] " Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 1/9] INSTALL: don't mention the "curl" executable at all Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 2/9] INSTALL: reword and copy-edit the "libcurl" section Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 3/9] INSTALL: mention that we need libcurl 7.19.4 or newer to build Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 4/9] Makefile: drop support for curl < 7.9.8 (again) Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 5/9] http: drop support for curl < 7.18.0 (again) Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 6/9] http: correct version check for CURL_HTTP_VERSION_2 Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 7/9] http: correct curl version check for CURLOPT_PINNEDPUBLICKEY Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 8/9] http: centralize the accounting of libcurl dependencies Ævar Arnfjörð Bjarmason
2021-09-11 9:34 ` [PATCH v3 9/9] http: don't hardcode the value of CURL_SOCKOPT_OK Ævar Arnfjörð Bjarmason
2021-09-11 14:46 ` [PATCH v3 0/9] post-v2.33 "drop support for ancient curl" follow-up Jeff King
2021-09-12 19:01 ` Junio C Hamano
2021-09-13 14:51 ` [PATCH v4 " Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 1/9] INSTALL: don't mention the "curl" executable at all Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 2/9] INSTALL: reword and copy-edit the "libcurl" section Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 3/9] INSTALL: mention that we need libcurl 7.19.4 or newer to build Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 4/9] Makefile: drop support for curl < 7.9.8 (again) Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 5/9] http: drop support for curl < 7.18.0 (again) Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 6/9] http: correct version check for CURL_HTTP_VERSION_2 Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 7/9] http: correct curl version check for CURLOPT_PINNEDPUBLICKEY Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 8/9] http: centralize the accounting of libcurl dependencies Ævar Arnfjörð Bjarmason
2021-09-13 14:51 ` [PATCH v4 9/9] http: don't hardcode the value of CURL_SOCKOPT_OK Ævar Arnfjörð Bjarmason
2021-09-13 17:02 ` [PATCH v4 0/9] post-v2.33 "drop support for ancient curl" follow-up Jeff King
2021-09-13 17:41 ` Junio C Hamano
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