refs: do not execute reference-transaction hook on packing refs

The reference-transaction hook is supposed to track logical changes to
references, but it currently also gets executed when packing refs in a
repository. This is unexpected and ultimately not all that useful:
packing refs is not supposed to result in any user-visible change to the
refs' state, and it ultimately is an implementation detail of how refs
stores work.

Fix this excessive execution of the hook when packing refs.

Reported-by: Waleed Khan <me@waleedkhan.name>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2022-01-17 09:12:48 +01:00 committed by Junio C Hamano
parent 2ce8254362
commit ffad994138
2 changed files with 5 additions and 12 deletions

View File

@ -1121,7 +1121,8 @@ static void prune_ref(struct files_ref_store *refs, struct ref_to_prune *r)
if (check_refname_format(r->name, 0))
return;
transaction = ref_store_transaction_begin(&refs->base, 0, &err);
transaction = ref_store_transaction_begin(&refs->base,
REF_TRANSACTION_SKIP_HOOK, &err);
if (!transaction)
goto cleanup;
ref_transaction_add_update(
@ -1192,7 +1193,8 @@ static int files_pack_refs(struct ref_store *ref_store, unsigned int flags)
struct strbuf err = STRBUF_INIT;
struct ref_transaction *transaction;
transaction = ref_store_transaction_begin(refs->packed_ref_store, 0, &err);
transaction = ref_store_transaction_begin(refs->packed_ref_store,
REF_TRANSACTION_SKIP_HOOK, &err);
if (!transaction)
return -1;

View File

@ -150,21 +150,12 @@ test_expect_success 'hook does not get called on packing refs' '
git pack-refs --all &&
# We only expect a single hook invocation, which is the call to
# git-update-ref(1). But currently, packing refs will also trigger the
# hook.
# git-update-ref(1).
cat >expect <<-EOF &&
prepared
$ZERO_OID $POST_OID refs/heads/unpacked-ref
committed
$ZERO_OID $POST_OID refs/heads/unpacked-ref
prepared
$ZERO_OID $POST_OID refs/heads/unpacked-ref
committed
$ZERO_OID $POST_OID refs/heads/unpacked-ref
prepared
$POST_OID $ZERO_OID refs/heads/unpacked-ref
committed
$POST_OID $ZERO_OID refs/heads/unpacked-ref
EOF
test_cmp expect actual