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serve: advertise object-format capability for protocol v2

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In order to communicate the protocol supported by the server side, add
support for advertising the object-format capability.  We check that the
client side sends us an identical algorithm if it sends us its own
object-format capability, and assume it speaks SHA-1 if not.

In the test, when we're using an algorithm other than SHA-1, we need to
specify the algorithm in use so we don't get a failure with an "unknown
format" message.  Add a test that we handle a mismatched algorithm.
Remove the test_oid_init call since it's no longer necessary.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
brian m. carlson
2020-05-25 19:59:17 +00:00
committed by Junio C Hamano
parent ab67235bc4
commit 9de0dd361c
3 changed files with 54 additions and 0 deletions
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2
connect.c
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@@ -460,6 +460,8 @@ struct ref **get_remote_refs(int fd_out, struct packet_reader *reader,
die(_("unknown object format '%s' specified by server"), hash_name);
reader->hash_algo = &hash_algos[hash_algo];
packet_write_fmt(fd_out, "object-format=%s", reader->hash_algo->name);
} else {
reader->hash_algo = &hash_algos[GIT_HASH_SHA1];
}
if (server_options && server_options->nr &&