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From: Karthik Nayak <karthik.188@gmail.com>
To: karthik.188@gmail.com
Cc: christian.couder@gmail.com, git@vger.kernel.org,
	gitster@pobox.com, ps@pks.im
Subject: [PATCH v5 5/7] refs: use transaction in `refs_create_symref()`
Date: Wed,  1 May 2024 22:22:27 +0200	[thread overview]
Message-ID: <20240501202229.2695774-6-knayak@gitlab.com> (raw)
In-Reply-To: <20240501202229.2695774-1-knayak@gitlab.com>

From: Karthik Nayak <karthik.188@gmail.com>

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@gmail.com>
---
 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


  parent reply	other threads:[~2024-05-01 20:22 UTC|newest]

Thread overview: 194+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-30 22:46 [PATCH 0/8] update-ref: add support for update-symref option Karthik Nayak
2024-03-30 22:46 ` [PATCH 1/8] files-backend: extract out `create_symref_lock` Karthik Nayak
2024-04-02 12:20   ` Patrick Steinhardt
2024-04-03 14:52     ` Karthik Nayak
2024-03-30 22:46 ` [PATCH 2/8] reftable-backend: extract out `write_symref_with_log` Karthik Nayak
2024-04-02 12:20   ` Patrick Steinhardt
2024-03-30 22:46 ` [PATCH 3/8] reftable-backend: move `write_symref_with_log` up Karthik Nayak
2024-03-30 22:46 ` [PATCH 4/8] refs: accept symref in `ref_transaction_add_update` Karthik Nayak
2024-03-30 22:46 ` [PATCH 5/8] refs/files-backend: add support for symref updates Karthik Nayak
2024-04-02 12:20   ` Patrick Steinhardt
2024-03-30 22:46 ` [PATCH 6/8] refs/reftable-backend: " Karthik Nayak
2024-04-02 12:20   ` Patrick Steinhardt
2024-03-30 22:46 ` [PATCH 7/8] refs: add 'update-symref' command to 'update-ref' Karthik Nayak
2024-03-31 22:08   ` Junio C Hamano
2024-03-31 22:27     ` Chris Torek
2024-03-31 23:14       ` Junio C Hamano
2024-04-01  1:31         ` Junio C Hamano
2024-04-02 12:20           ` Patrick Steinhardt
2024-04-02 16:40             ` Junio C Hamano
2024-04-09 11:55               ` Patrick Steinhardt
2024-04-09 16:15                 ` Karthik Nayak
2024-04-10  4:20                   ` Patrick Steinhardt
2024-04-10 16:06                     ` Junio C Hamano
2024-04-10 17:31                       ` Patrick Steinhardt
2024-04-01 10:38       ` Karthik Nayak
2024-04-01 11:48     ` Karthik Nayak
2024-04-01 16:17       ` Junio C Hamano
2024-04-01 20:40         ` Junio C Hamano
2024-04-01 22:37         ` Karthik Nayak
2024-03-30 22:46 ` [PATCH 8/8] refs: support symrefs in 'reference-transaction' hook Karthik Nayak
2024-04-02 12:20   ` Patrick Steinhardt
2024-04-12  9:59 ` [PATCH v2 0/7] update-ref: add symref oriented commands Karthik Nayak
2024-04-12  9:59   ` [PATCH v2 1/7] refs: accept symref values in `ref_transaction[_add]_update` Karthik Nayak
2024-04-18 14:25     ` Christian Couder
2024-04-19 10:28       ` Karthik Nayak
2024-04-18 15:08     ` Phillip Wood
2024-04-19  9:40       ` Patrick Steinhardt
2024-04-19 15:47       ` Karthik Nayak
2024-05-04 15:15         ` phillip.wood123
2024-04-19  9:40     ` Patrick Steinhardt
2024-04-19 18:09       ` Karthik Nayak
2024-04-23  6:31         ` Patrick Steinhardt
2024-04-23 10:48           ` Karthik Nayak
2024-04-12  9:59   ` [PATCH v2 2/7] update-ref: add support for symref-verify Karthik Nayak
2024-04-18 14:26     ` Christian Couder
2024-04-19 21:21       ` Karthik Nayak
2024-04-19  9:40     ` Patrick Steinhardt
2024-04-19 21:53       ` Karthik Nayak
2024-04-12  9:59   ` [PATCH v2 3/7] update-ref: add support for symref-delete Karthik Nayak
2024-04-18 14:52     ` Christian Couder
2024-04-21 10:43       ` Karthik Nayak
2024-04-19  9:40     ` Patrick Steinhardt
2024-04-21 10:45       ` Karthik Nayak
2024-04-12  9:59   ` [PATCH v2 4/7] files-backend: extract out `create_symref_lock` Karthik Nayak
2024-04-12  9:59   ` [PATCH v2 5/7] update-ref: add support for symref-create Karthik Nayak
2024-04-19  9:40     ` Patrick Steinhardt
2024-04-19 15:48       ` Junio C Hamano
2024-04-21 12:50       ` Karthik Nayak
2024-04-21 15:57         ` Karthik Nayak
2024-04-23  6:39         ` Patrick Steinhardt
2024-04-23 10:52           ` Karthik Nayak
2024-04-12  9:59   ` [PATCH v2 6/7] update-ref: add support for symref-update Karthik Nayak
2024-04-19  9:40     ` Patrick Steinhardt
2024-04-21 19:00       ` Karthik Nayak
2024-04-23  6:49         ` Patrick Steinhardt
2024-04-23 11:30           ` Karthik Nayak
2024-04-12  9:59   ` [PATCH v2 7/7] refs: support symrefs in 'reference-transaction' hook Karthik Nayak
2024-04-12 18:01   ` [PATCH v2 0/7] update-ref: add symref oriented commands Junio C Hamano
2024-04-12 18:49     ` Karthik Nayak
2024-04-18 15:05   ` Christian Couder
2024-04-21 19:06     ` Karthik Nayak
2024-04-20  6:16   ` Patrick Steinhardt
2024-04-21 19:11     ` Karthik Nayak
2024-04-23 21:28   ` [PATCH v3 0/8] refs: add symref support to 'git-update-ref' Karthik Nayak
2024-04-23 21:28     ` [PATCH v3 1/8] refs: accept symref values in `ref_transaction[_add]_update` Karthik Nayak
2024-04-23 21:28     ` [PATCH v3 2/8] update-ref: support parsing ref targets in `parse_next_oid` Karthik Nayak
2024-04-23 21:28     ` [PATCH v3 3/8] files-backend: extract out `create_symref_lock` Karthik Nayak
2024-04-23 21:28     ` [PATCH v3 4/8] update-ref: support symrefs in the verify command Karthik Nayak
2024-04-23 21:28     ` [PATCH v3 5/8] update-ref: support symrefs in the delete command Karthik Nayak
2024-04-23 21:28     ` [PATCH v3 6/8] update-ref: support symrefs in the create command Karthik Nayak
2024-04-23 21:28     ` [PATCH v3 7/8] update-ref: support symrefs in the update command Karthik Nayak
2024-04-23 21:28     ` [PATCH v3 8/8] ref: support symrefs in 'reference-transaction' hook Karthik Nayak
2024-04-23 22:03     ` [PATCH v3 0/8] refs: add symref support to 'git-update-ref' Jeff King
2024-04-24  1:17       ` Junio C Hamano
2024-04-24 16:25       ` Karthik Nayak
2024-04-25  6:40         ` Patrick Steinhardt
2024-04-25 21:12           ` Karthik Nayak
2024-04-25 18:01         ` Junio C Hamano
2024-04-25 21:14           ` Karthik Nayak
2024-04-25 21:55             ` Junio C Hamano
2024-04-26 12:48               ` Karthik Nayak
2024-04-26 20:41         ` Jeff King
2024-04-25 17:09     ` Junio C Hamano
2024-04-25 21:07       ` Karthik Nayak
2024-04-26 15:24     ` [PATCH v4 0/7] add symref-* commands to 'git-update-ref --stdin' Karthik Nayak
2024-04-26 15:24       ` [PATCH v4 1/7] refs: accept symref values in `ref_transaction[_add]_update` Karthik Nayak
2024-04-26 19:31         ` Junio C Hamano
2024-04-26 21:15           ` Jeff King
2024-04-29  7:02             ` Patrick Steinhardt
2024-04-29  7:55               ` Jeff King
2024-04-29  9:29                 ` phillip.wood123
2024-04-29  9:32             ` phillip.wood123
2024-04-29 16:18               ` Junio C Hamano
2024-04-30 10:33                 ` Jeff King
2024-04-30 10:30               ` Jeff King
2024-04-28 19:36           ` Karthik Nayak
2024-04-29 13:38         ` Phillip Wood
2024-04-29 14:01           ` Karthik Nayak
2024-04-26 15:24       ` [PATCH v4 2/7] files-backend: extract out `create_symref_lock` Karthik Nayak
2024-04-26 21:39         ` Junio C Hamano
2024-04-28 19:57           ` Karthik Nayak
2024-04-26 15:24       ` [PATCH v4 3/7] update-ref: add support for 'symref-verify' command Karthik Nayak
2024-04-26 22:51         ` Junio C Hamano
2024-04-28 22:28           ` Karthik Nayak
2024-04-26 15:24       ` [PATCH v4 4/7] update-ref: add support for 'symref-delete' command Karthik Nayak
2024-04-26 15:24       ` [PATCH v4 5/7] update-ref: add support for 'symref-create' command Karthik Nayak
2024-04-26 15:24       ` [PATCH v4 6/7] update-ref: add support for 'symref-update' command Karthik Nayak
2024-04-26 15:24       ` [PATCH v4 7/7] ref: support symrefs in 'reference-transaction' hook Karthik Nayak
2024-04-30 10:14       ` [PATCH v4 0/7] add symref-* commands to 'git-update-ref --stdin' Karthik Nayak
2024-05-01 20:22       ` [PATCH v5 0/7] refs: add support for transactional symref updates Karthik Nayak
2024-05-01 20:22         ` [PATCH v5 1/7] refs: accept symref values in `ref_transaction_update()` Karthik Nayak
2024-05-01 20:22         ` [PATCH v5 2/7] files-backend: extract out `create_symref_lock()` Karthik Nayak
2024-05-01 22:06           ` Junio C Hamano
2024-05-02  7:47             ` Patrick Steinhardt
2024-05-02 11:05               ` Karthik Nayak
2024-05-02 16:49               ` Junio C Hamano
2024-05-01 20:22         ` [PATCH v5 3/7] refs: support symrefs in 'reference-transaction' hook Karthik Nayak
2024-05-01 23:05           ` Junio C Hamano
2024-05-02  5:32             ` Karthik Nayak
2024-05-01 20:22         ` [PATCH v5 4/7] refs: add support for transactional symref updates Karthik Nayak
2024-05-01 23:52           ` Junio C Hamano
2024-05-02  5:50             ` Karthik Nayak
2024-05-02  7:47               ` Patrick Steinhardt
2024-05-02 11:10                 ` Karthik Nayak
2024-05-02 16:51                 ` Junio C Hamano
2024-05-02 16:00               ` Junio C Hamano
2024-05-02 17:53           ` Junio C Hamano
2024-05-01 20:22         ` Karthik Nayak [this message]
2024-05-02  7:47           ` [PATCH v5 5/7] refs: use transaction in `refs_create_symref()` Patrick Steinhardt
2024-05-01 20:22         ` [PATCH v5 6/7] refs: rename `refs_create_symref()` to `refs_update_symref()` Karthik Nayak
2024-05-02  7:47           ` Patrick Steinhardt
2024-05-02 11:34             ` Karthik Nayak
2024-05-01 20:22         ` [PATCH v5 7/7] refs: remove `create_symref` and associated dead code Karthik Nayak
2024-05-02  7:47           ` Patrick Steinhardt
2024-05-02 16:53             ` Junio C Hamano
2024-05-02  0:20         ` [PATCH v5 0/7] refs: add support for transactional symref updates Junio C Hamano
2024-05-02  5:53           ` Karthik Nayak
2024-05-03 12:41         ` [PATCH v6 " Karthik Nayak
2024-05-03 12:41           ` [PATCH v6 1/7] refs: accept symref values in `ref_transaction_update()` Karthik Nayak
2024-05-04 15:18             ` Phillip Wood
2024-05-05 15:10               ` Karthik Nayak
2024-05-05 15:19                 ` phillip.wood123
2024-05-03 12:41           ` [PATCH v6 2/7] files-backend: extract out `create_symref_lock()` Karthik Nayak
2024-05-03 12:41           ` [PATCH v6 3/7] refs: support symrefs in 'reference-transaction' hook Karthik Nayak
2024-05-03 12:41           ` [PATCH v6 4/7] refs: add support for transactional symref updates Karthik Nayak
2024-05-05 14:09             ` Phillip Wood
2024-05-05 16:09               ` Karthik Nayak
2024-05-06  9:35                 ` Phillip Wood
2024-05-06 11:19                   ` Karthik Nayak
2024-05-06 13:19                     ` Phillip Wood
2024-05-06  9:54                 ` Phillip Wood
2024-05-06 11:22                   ` Karthik Nayak
2024-05-06 13:17                     ` Phillip Wood
2024-05-03 12:41           ` [PATCH v6 5/7] refs: use transaction in `refs_create_symref()` Karthik Nayak
2024-05-03 12:41           ` [PATCH v6 6/7] refs: rename `refs_create_symref()` to `refs_update_symref()` Karthik Nayak
2024-05-03 12:41           ` [PATCH v6 7/7] refs: remove `create_symref` and associated dead code Karthik Nayak
2024-05-03 23:09             ` Junio C Hamano
2024-05-04  9:30               ` Karthik Nayak
2024-05-03 16:45           ` [PATCH v6 0/7] refs: add support for transactional symref updates Junio C Hamano
2024-05-06  7:36           ` Patrick Steinhardt
2024-05-07  6:00           ` [PATCH v7 0/8] " Karthik Nayak
2024-05-07  6:00             ` [PATCH v7 1/8] refs: accept symref values in `ref_transaction_update()` Karthik Nayak
2024-05-07  6:00             ` [PATCH v7 2/8] files-backend: extract out `create_symref_lock()` Karthik Nayak
2024-05-07  6:00             ` [PATCH v7 3/8] refs: support symrefs in 'reference-transaction' hook Karthik Nayak
2024-05-07  6:00             ` [PATCH v7 4/8] refs: move `original_update_refname` to 'refs.c' Karthik Nayak
2024-05-07  6:00             ` [PATCH v7 5/8] refs: add support for transactional symref updates Karthik Nayak
2024-05-07  6:00             ` [PATCH v7 6/8] refs: use transaction in `refs_create_symref()` Karthik Nayak
2024-05-07  6:00             ` [PATCH v7 7/8] refs: rename `refs_create_symref()` to `refs_update_symref()` Karthik Nayak
2024-05-07  6:00             ` [PATCH v7 8/8] refs: remove `create_symref` and associated dead code Karthik Nayak
2024-05-07  6:25             ` [PATCH v7 0/8] refs: add support for transactional symref updates Junio C Hamano
2024-05-07  6:31               ` Junio C Hamano
2024-05-07 12:58             ` [PATCH v8 " Karthik Nayak
2024-05-07 12:58               ` [PATCH v8 1/8] refs: accept symref values in `ref_transaction_update()` Karthik Nayak
2024-05-07 12:58               ` [PATCH v8 2/8] files-backend: extract out `create_symref_lock()` Karthik Nayak
2024-05-07 12:58               ` [PATCH v8 3/8] refs: support symrefs in 'reference-transaction' hook Karthik Nayak
2024-05-07 12:58               ` [PATCH v8 4/8] refs: move `original_update_refname` to 'refs.c' Karthik Nayak
2024-05-07 12:58               ` [PATCH v8 5/8] refs: add support for transactional symref updates Karthik Nayak
2024-05-07 12:58               ` [PATCH v8 6/8] refs: use transaction in `refs_create_symref()` Karthik Nayak
2024-05-07 12:58               ` [PATCH v8 7/8] refs: rename `refs_create_symref()` to `refs_update_symref()` Karthik Nayak
2024-05-07 12:58               ` [PATCH v8 8/8] refs: remove `create_symref` and associated dead code Karthik Nayak
2024-05-07 15:50               ` [PATCH v8 0/8] refs: add support for transactional symref updates phillip.wood123
2024-05-07 16:32               ` Junio C Hamano
2024-05-12 17:17                 ` Karthik Nayak
2024-05-13 17:15                   ` Junio C Hamano

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