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[PATCH 10/12] fetch.c: change s_update_ref to use a ref transaction

From
Ronnie Sahlberg <sahlberg@google.com>
Date
Jul 16, 2014, 22:23 UTC
Message-ID
<1405549392-27306-11-git-send-email-sahlberg@google.com>
In-Reply-To
<1405549392-27306-1-git-send-email-sahlberg@google.com>
Change s_update_ref to use a ref transaction for the ref update.
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
---
 builtin/fetch.c | 33 +++++++++++++++++++++++----------
 1 file changed, 23 insertions(+), 10 deletions(-)
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 92fad2d..383c385 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -404,23 +404,36 @@ static int s_update_ref(const char *action,
 {
 	char msg[1024];
 	char *rla = getenv("GIT_REFLOG_ACTION");
-	static struct ref_lock *lock;
+	struct ref_transaction *transaction;
+	struct strbuf err = STRBUF_INIT;
+	int ret, df_conflict = 0;
 
 	if (dry_run)
 		return 0;
 	if (!rla)
 		rla = default_rla.buf;
 	snprintf(msg, sizeof(msg), "%s: %s", rla, action);
-	lock = lock_any_ref_for_update(ref->name,
-				       check_old ? ref->old_sha1 : NULL,
-				       0, NULL);
-	if (!lock)
-		return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
-					  STORE_REF_ERROR_OTHER;
-	if (write_ref_sha1(lock, ref->new_sha1, msg) < 0)
-		return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
-					  STORE_REF_ERROR_OTHER;
+
+	transaction = ref_transaction_begin(&err);
+	if (!transaction ||
+	    ref_transaction_update(transaction, ref->name, ref->new_sha1,
+				   ref->old_sha1, 0, check_old, msg, &err))
+		goto fail;
+
+	ret = ref_transaction_commit(transaction, &err);
+	if (ret == UPDATE_REFS_NAME_CONFLICT)
+		df_conflict = 1;
+	if (ret)
+		goto fail;
+
+	ref_transaction_free(transaction);
 	return 0;
+fail:
+	ref_transaction_free(transaction);
+	error("%s", err.buf);
+	strbuf_release(&err);
+	return df_conflict ? STORE_REF_ERROR_DF_CONFLICT
+			   : STORE_REF_ERROR_OTHER;
 }
 
 #define REFCOL_WIDTH  10
-- 
2.0.1.527.gc6b782e
Previous: Ronnie SahlbergNext: Ronnie Sahlberg
Message 20 of 26 in “Use ref transactions part 3”
  1. 00/12 Use ref transactions part 3Ronnie Sahlberg, Jul 16, 2014
  2. 01/12 wrapper.c: simplify warn_if_unremovableRonnie Sahlberg, Jul 16, 2014
  3. Junio C HamanoJul 18, 2014
  4. 02/12 wrapper.c: add a new function unlink_or_msgRonnie Sahlberg, Jul 16, 2014
  5. Junio C HamanoJul 18, 2014
  6. Junio C HamanoJul 18, 2014
  7. Ronnie SahlbergJul 22, 2014
  8. Junio C HamanoJul 22, 2014
  9. 03/12 refs.c: add an err argument to delete_ref_looseRonnie Sahlberg, Jul 16, 2014
  10. 04/12 refs.c: pass the ref log message to _create/delete/update instead of _commitRonnie Sahlberg, Jul 16, 2014
  11. 05/12 refs.c: pass NULL as *flags to read_ref_fullRonnie Sahlberg, Jul 16, 2014
  12. Junio C HamanoJul 18, 2014
  13. Ronnie SahlbergJul 22, 2014
  14. Ronnie SahlbergJul 22, 2014
  15. 06/12 refs.c: move the check for valid refname to lock_ref_sha1_basicRonnie Sahlberg, Jul 16, 2014
  16. Junio C HamanoJul 18, 2014
  17. 07/12 refs.c: call lock_ref_sha1_basic directly from commitRonnie Sahlberg, Jul 16, 2014
  18. 08/12 refs.c: pass a skip list to name_conflict_fnRonnie Sahlberg, Jul 16, 2014
  19. 09/12 refs.c: propagate any errno==ENOTDIR from _commit back to the callersRonnie Sahlberg, Jul 16, 2014
  20. 10/12 fetch.c: change s_update_ref to use a ref transactionRonnie Sahlberg, Jul 16, 2014
  21. 11/12 refs.c: make write_ref_sha1 staticRonnie Sahlberg, Jul 16, 2014
  22. 12/12 refs.c: fix handling of badly named refsRonnie Sahlberg, Jul 16, 2014
  23. Junio C HamanoJul 22, 2014
  24. Ronnie SahlbergJul 22, 2014
  25. Ronnie SahlbergJul 22, 2014
  26. Junio C HamanoJul 22, 2014

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