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AJvYcCXtGtDYZveVzgQ2O75Ve6kNarWyYDRiAfW7VZZGBMUMnyXbTNSjNk8dOpMpTxLHpL31i7R8sA+Cyaxwyxvrkt2uF740 X-Gm-Message-State: AOJu0Yz2Y3NTofBN7VarVOntXlJ9jsjrqT8WrW5OJ3/xcSoTqZbZuNqn eLCKVm5yJOZhm3M6/M4iff3jkFx5oFcbx7IUpraEsBWNbDwhOqfH X-Google-Smtp-Source: AGHT+IEbMOor0TsywBI1sHkozXOdeN5/vCqvVSGpaDjg1KzdcsczNJjbSwSUybM7C20f8gkCJG6afA== X-Received: by 2002:a19:ae12:0:b0:51b:812:3c87 with SMTP id f18-20020a19ae12000000b0051b08123c87mr1916808lfc.39.1714594958320; Wed, 01 May 2024 13:22:38 -0700 (PDT) Received: from laptop.fritz.box ([2a02:2455:826e:4900:8270:9642:2bfa:e177]) by smtp.gmail.com with ESMTPSA id hg25-20020a170906f35900b00a58eec6f5acsm5290686ejb.102.2024.05.01.13.22.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 May 2024 13:22:37 -0700 (PDT) From: Karthik Nayak X-Google-Original-From: Karthik Nayak 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 Message-ID: <20240501202229.2695774-6-knayak@gitlab.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240501202229.2695774-1-knayak@gitlab.com> References: <20240426152449.228860-1-knayak@gitlab.com> <20240501202229.2695774-1-knayak@gitlab.com> Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Karthik Nayak 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 --- 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