From: Karthik Nayak <karthik.188@xxxxxxxxx>
The `refs_create_symref()` function updates a symref to a given new
target. To do this, it uses a ref-backend specific function
`create_symref()`.
In this previous commit, we introduce symref support in transactions.
This means we can now use transactions to perform symref updates and not
have to resort to `create_symref()`. Doing this allows us to remove and
cleanup `create_symref()`, which we will do in the following commit.
Modify the expected error message for a test in
't/t0610-reftable-basics.sh', since the error is now thrown from the
'refs.c'. This is because in transactional updates, F/D conflicts are
caught before we're in the reference backend.
Signed-off-by: Karthik Nayak <karthik.188@xxxxxxxxx>
---
refs.c | 24 +++++++++++++++++-------
t/t0610-reftable-basics.sh | 2 +-
t/t1416-ref-transaction-hooks.sh | 23 +++++++++++++++++++++++
3 files changed, 41 insertions(+), 8 deletions(-)
diff --git a/refs.c b/refs.c
index a4dca08244..1b67c87f47 100644
--- a/refs.c
+++ b/refs.c
@@ -2291,14 +2291,24 @@ int refs_create_symref(struct ref_store *refs,
const char *refs_heads_master,
const char *logmsg)
{
- char *msg;
- int retval;
+ struct ref_transaction *transaction;
+ struct strbuf err = STRBUF_INIT;
+ int ret = 0;
- msg = normalize_reflog_message(logmsg);
- retval = refs->be->create_symref(refs, ref_target, refs_heads_master,
- msg);
- free(msg);
- return retval;
+ transaction = ref_store_transaction_begin(refs, &err);
+ if (!transaction ||
+ ref_transaction_update(transaction, ref_target, NULL, NULL,
+ refs_heads_master, NULL, REF_NO_DEREF,
+ logmsg, &err) ||
+ ref_transaction_commit(transaction, &err)) {
+ ret = error("%s", err.buf);
+ }
+
+ strbuf_release(&err);
+ if (transaction)
+ ref_transaction_free(transaction);
+
+ return ret;
}
int create_symref(const char *ref_target, const char *refs_heads_master,
diff --git a/t/t0610-reftable-basics.sh b/t/t0610-reftable-basics.sh
index 178791e086..9e8d22bcbd 100755
--- a/t/t0610-reftable-basics.sh
+++ b/t/t0610-reftable-basics.sh
@@ -286,7 +286,7 @@ test_expect_success 'ref transaction: creating symbolic ref fails with F/D confl
git init repo &&
test_commit -C repo A &&
cat >expect <<-EOF &&
- error: unable to write symref for refs/heads: file/directory conflict
+ error: ${SQ}refs/heads/main${SQ} exists; cannot create ${SQ}refs/heads${SQ}
EOF
test_must_fail git -C repo symbolic-ref refs/heads refs/heads/foo 2>err &&
test_cmp expect err
diff --git a/t/t1416-ref-transaction-hooks.sh b/t/t1416-ref-transaction-hooks.sh
index 2092488090..4433ac2177 100755
--- a/t/t1416-ref-transaction-hooks.sh
+++ b/t/t1416-ref-transaction-hooks.sh
@@ -134,4 +134,27 @@ test_expect_success 'interleaving hook calls succeed' '
test_cmp expect target-repo.git/actual
'
+test_expect_success 'hook captures git-symbolic-ref updates' '
+ test_when_finished "rm actual" &&
+
+ test_hook reference-transaction <<-\EOF &&
+ echo "$*" >>actual
+ while read -r line
+ do
+ printf "%s\n" "$line"
+ done >>actual
+ EOF
+
+ git symbolic-ref refs/heads/symref refs/heads/main &&
+
+ cat >expect <<-EOF &&
+ prepared
+ $ZERO_OID ref:refs/heads/main refs/heads/symref
+ committed
+ $ZERO_OID ref:refs/heads/main refs/heads/symref
+ EOF
+
+ test_cmp expect actual
+'
+
test_done
--
2.43.GIT
