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send-pack: new return code "ERROR_SEND_PACK_BAD_REF_STATUS"

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The "push_refs" function in the transport_vtable is the handler for
git-push operation. All the "push_refs" functions for different
transports (protocols) should have the same behavior, but the behavior
of "git_transport_push()" function for builtin_smart_vtable in
"transport.c" (which calls "send_pack()" in "send-pack.c") differs from
the handler of the HTTP protocol.

The "push_refs()" function for the HTTP protocol which calls the
"push_refs_with_push()" function in "transport-helper.c" will return 0
even when a bad REF_STATUS (such as REF_STATUS_REJECT_NONFASTFORWARD)
was found. But "send_pack()" for Git smart protocol will return -1 for
a bad REF_STATUS.

We cannot ignore bad REF_STATUS directly in the "send_pack()" function,
because the function is also used in "builtin/send-pack.c". So we add a
new non-zero error code "SEND_PACK_ERROR_REF_STATUS" for "send_pack()".

Ignore the specific error code in the "git_transport_push()" function to
have the same behavior as "push_refs()" for HTTP protocol. Note that
even though we ignore the error here, we'll ultimately still end up
detecting that a subset of refs was not pushed in `transport_push()`
because we eventually call `push_had_errors()` on the remote refs.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jiang Xin
2025-02-03 07:29:36 +01:00
committed by Junio C Hamano
parent dd69a12e6a
commit 3028db4af2
3 changed files with 22 additions and 7 deletions
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9
send-pack.c
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@@ -632,7 +632,7 @@ int send_pack(struct repository *r,
reject_atomic_push(remote_refs, args->send_mirror);
error("atomic push failed for ref %s. status: %d",
ref->name, ref->status);
ret = args->porcelain ? 0 : -1;
ret = ERROR_SEND_PACK_BAD_REF_STATUS;
goto out;
}
/* else fallthrough */
@@ -763,11 +763,6 @@ int send_pack(struct repository *r,
if (ret < 0)
goto out;
if (args->porcelain) {
ret = 0;
goto out;
}
for (ref = remote_refs; ref; ref = ref->next) {
switch (ref->status) {
case REF_STATUS_NONE:
@@ -775,7 +770,7 @@ int send_pack(struct repository *r,
case REF_STATUS_OK:
break;
default:
ret = -1;
ret = ERROR_SEND_PACK_BAD_REF_STATUS;
goto out;
}
}