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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: "brian m. carlson" <sandals@crustytoothpaste.net>
Cc: git@vger.kernel.org, "René Scharfe" <l.s.r@web.de>,
	"Duy Nguyen" <pclouds@gmail.com>
Subject: Re: [PATCH 23/31] remote-curl: make hash size independent
Date: Tue, 12 Feb 2019 12:11:12 +0100	[thread overview]
Message-ID: <87wom5jm7j.fsf@evledraar.gmail.com> (raw)
In-Reply-To: <20190212012256.1005924-24-sandals@crustytoothpaste.net>


On Tue, Feb 12 2019, brian m. carlson wrote:

> Change one hard-coded use of the constant 40 to a reference to
> the_hash_algo.  In addition, switch a use of get_oid_hex to
> parse_oid_hex to avoid the need to use a constant.
>
> Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
> ---
>  remote-curl.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/remote-curl.c b/remote-curl.c
> index bb7421023b..8395b71bbb 100644
> --- a/remote-curl.c
> +++ b/remote-curl.c
> @@ -249,7 +249,7 @@ static struct ref *parse_info_refs(struct discovery *heads)
>  		if (data[i] == '\t')
>  			mid = &data[i];
>  		if (data[i] == '\n') {
> -			if (mid - start != 40)
> +			if (mid - start != the_hash_algo->hexsz)
>  				die("%sinfo/refs not valid: is this a git repository?",
>  				    url.buf);
>  			data[i] = 0;

Similar to my comment on 28/31 I may be missing something, but this is
the part where we're parsing the ref advertisement from a remote
repository, which may e.g. be SHA-1, and our local "the hash algo" may
be SHA-256, no?

So isn't this a point where we need to accept both, and parse it into
some structure where we mark it as either/or SHA-1 or SHA-256, and late
or consult SHA-1<->SHA-256 lookup tables etc.?

  reply	other threads:[~2019-02-12 11:11 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-12  1:22 [PATCH 00/31] Hash function transition part 16 brian m. carlson
2019-02-12  1:22 ` [PATCH 01/31] t/lib-submodule-update: use appropriate length constant brian m. carlson
2019-02-12  1:22 ` [PATCH 02/31] pack-bitmap: make bitmap header handling hash agnostic brian m. carlson
2019-02-12  1:22 ` [PATCH 03/31] pack-bitmap: convert struct stored_bitmap to object_id brian m. carlson
2019-02-12  1:22 ` [PATCH 04/31] pack-bitmap: replace sha1_to_hex brian m. carlson
2019-02-12  6:37   ` Jeff King
2019-02-13  0:00     ` brian m. carlson
2019-02-14  4:41       ` Jeff King
2019-02-12  1:22 ` [PATCH 05/31] pack-bitmap: switch hard-coded constants to the_hash_algo brian m. carlson
2019-02-12 11:13   ` Ævar Arnfjörð Bjarmason
2019-02-12  1:22 ` [PATCH 06/31] submodule: avoid hard-coded constants brian m. carlson
2019-02-12  1:22 ` [PATCH 07/31] notes-merge: switch to use the_hash_algo brian m. carlson
2019-02-12  1:22 ` [PATCH 08/31] notes: make hash size independent brian m. carlson
2019-02-12  1:37   ` Eric Sunshine
2019-02-12  1:42     ` brian m. carlson
2019-02-12  1:22 ` [PATCH 09/31] notes: replace sha1_to_hex brian m. carlson
2019-02-12  1:22 ` [PATCH 10/31] object-store: rename and expand packed_git's sha1 member brian m. carlson
2019-02-12  3:32   ` Eric Sunshine
2019-02-14  3:33     ` brian m. carlson
2019-02-12  1:22 ` [PATCH 11/31] builtin/name-rev: make hash-size independent brian m. carlson
2019-02-12  1:22 ` [PATCH 12/31] fast-import: " brian m. carlson
2019-02-12  3:44   ` Eric Sunshine
2019-02-12 23:36     ` brian m. carlson
2019-02-12  1:22 ` [PATCH 13/31] fast-import: replace sha1_to_hex brian m. carlson
2019-02-12  1:22 ` [PATCH 14/31] builtin/am: make hash size independent brian m. carlson
2019-02-12  1:22 ` [PATCH 15/31] builtin/pull: make hash-size independent brian m. carlson
2019-02-12  3:47   ` Eric Sunshine
2019-02-12  1:22 ` [PATCH 16/31] http-push: convert to use the_hash_algo brian m. carlson
2019-02-12  1:22 ` [PATCH 17/31] http-backend: allow 64-character hex names brian m. carlson
2019-02-12  1:22 ` [PATCH 18/31] http-push: remove remaining uses of sha1_to_hex brian m. carlson
2019-02-12  1:22 ` [PATCH 19/31] http-walker: replace sha1_to_hex brian m. carlson
2019-02-12  3:51   ` Eric Sunshine
2019-02-12  1:22 ` [PATCH 20/31] http: replace hard-coded constant with the_hash_algo brian m. carlson
2019-02-12  1:22 ` [PATCH 21/31] http: compute hash of downloaded objects using the_hash_algo brian m. carlson
2019-02-12  1:22 ` [PATCH 22/31] http: replace sha1_to_hex brian m. carlson
2019-02-12  1:22 ` [PATCH 23/31] remote-curl: make hash size independent brian m. carlson
2019-02-12 11:11   ` Ævar Arnfjörð Bjarmason [this message]
2019-02-12  1:22 ` [PATCH 24/31] archive-tar: " brian m. carlson
2019-02-12  7:20   ` René Scharfe
2019-02-12 17:33     ` René Scharfe
2019-02-13  0:11       ` brian m. carlson
2019-02-12  1:22 ` [PATCH 25/31] archive: convert struct archiver_args to object_id brian m. carlson
2019-02-12  1:22 ` [PATCH 26/31] refspec: make hash size independent brian m. carlson
2019-02-12  1:22 ` [PATCH 27/31] builtin/difftool: use parse_oid_hex brian m. carlson
2019-02-12  8:27   ` Eric Sunshine
2019-02-12  1:22 ` [PATCH 28/31] dir: make untracked cache extension hash size independent brian m. carlson
2019-02-12 11:08   ` Ævar Arnfjörð Bjarmason
2019-02-13  0:30     ` brian m. carlson
2019-02-12  1:22 ` [PATCH 29/31] read-cache: read data in a hash-independent way brian m. carlson
2019-02-12  1:22 ` [PATCH 30/31] Git.pm: make hash size independent brian m. carlson
2019-02-12 10:59   ` Ævar Arnfjörð Bjarmason
2019-02-18 19:09     ` brian m. carlson
2019-02-18 21:00       ` Ævar Arnfjörð Bjarmason
2019-02-12  1:22 ` [PATCH 31/31] gitweb: " brian m. carlson
2019-02-12 10:57   ` Ævar Arnfjörð Bjarmason
2019-02-12 11:15 ` [PATCH 00/31] Hash function transition part 16 Ævar Arnfjörð Bjarmason

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