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[PATCH 05/20] tag.c: use ref transactions when doing updates

From
Ronnie Sahlberg <sahlberg@google.com>
Date
Jul 15, 2014, 23:34 UTC
Message-ID
<1405467258-24102-6-git-send-email-sahlberg@google.com>
In-Reply-To
<1405467258-24102-1-git-send-email-sahlberg@google.com>
Change tag.c to use ref transactions for all ref updates.
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
---
 builtin/tag.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/builtin/tag.c b/builtin/tag.c
index c6e8a71..1aa88a2 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -548,7 +548,6 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 	struct strbuf ref = STRBUF_INIT;
 	unsigned char object[20], prev[20];
 	const char *object_ref, *tag;
-	struct ref_lock *lock;
 	struct create_tag_options opt;
 	char *cleanup_arg = NULL;
 	int annotate = 0, force = 0, lines = -1;
@@ -556,6 +555,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 	const char *msgfile = NULL, *keyid = NULL;
 	struct msg_arg msg = { 0, STRBUF_INIT };
 	struct commit_list *with_commit = NULL;
+	struct ref_transaction *transaction;
+	struct strbuf err = STRBUF_INIT;
 	struct option options[] = {
 		OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'),
 		{ OPTION_INTEGER, 'n', NULL, &lines, N_("n"),
@@ -701,11 +702,13 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 	if (annotate)
 		create_tag(object, tag, &buf, &opt, prev, object);
 
-	lock = lock_any_ref_for_update(ref.buf, prev, 0, NULL);
-	if (!lock)
-		die(_("%s: cannot lock the ref"), ref.buf);
-	if (write_ref_sha1(lock, object, NULL) < 0)
-		die(_("%s: cannot update the ref"), ref.buf);
+	transaction = ref_transaction_begin(&err);
+	if (!transaction ||
+	    ref_transaction_update(transaction, ref.buf, object, prev,
+				   0, 1, &err) ||
+	    ref_transaction_commit(transaction, NULL, &err))
+		die("%s", err.buf);
+	ref_transaction_free(transaction);
 	if (force && !is_null_sha1(prev) && hashcmp(prev, object))
 		printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev, DEFAULT_ABBREV));
 
-- 
2.0.1.442.g7fe6834.dirty
Previous: Ronnie SahlbergNext: Ronnie Sahlberg
Message 6 of 24 in “ref transactions part 2”
  1. 00/20 ref transactions part 2Ronnie Sahlberg, Jul 15, 2014
  2. 01/20 refs.c: change ref_transaction_create to do error checking and return statusRonnie Sahlberg, Jul 15, 2014
  3. 02/20 refs.c: update ref_transaction_delete to check for error and return statusRonnie Sahlberg, Jul 15, 2014
  4. 03/20 refs.c: make ref_transaction_begin take an err argumentRonnie Sahlberg, Jul 15, 2014
  5. 04/20 refs.c: add transaction.status and track OPEN/CLOSED/ERRORRonnie Sahlberg, Jul 15, 2014
  6. 05/20 tag.c: use ref transactions when doing updatesRonnie Sahlberg, Jul 15, 2014
  7. 06/20 replace.c: use the ref transaction functions for updatesRonnie Sahlberg, Jul 15, 2014
  8. 07/20 commit.c: use ref transactions for updatesRonnie Sahlberg, Jul 15, 2014
  9. 08/20 sequencer.c: use ref transactions for all ref updatesRonnie Sahlberg, Jul 15, 2014
  10. 09/20 fast-import.c: change update_branch to use ref transactionsRonnie Sahlberg, Jul 15, 2014
  11. 10/20 branch.c: use ref transaction for all ref updatesRonnie Sahlberg, Jul 15, 2014
  12. 11/20 refs.c: change update_ref to use a transactionRonnie Sahlberg, Jul 15, 2014
  13. 12/20 receive-pack.c: use a reference transaction for updating the refsRonnie Sahlberg, Jul 15, 2014
  14. 13/20 fast-import.c: use a ref transaction when dumping tagsRonnie Sahlberg, Jul 15, 2014
  15. 14/20 walker.c: use ref transaction for ref updatesRonnie Sahlberg, Jul 15, 2014
  16. 15/20 refs.c: make lock_ref_sha1 staticRonnie Sahlberg, Jul 15, 2014
  17. 16/20 refs.c: remove the update_ref_lock functionRonnie Sahlberg, Jul 15, 2014
  18. 17/20 refs.c: remove the update_ref_write functionRonnie Sahlberg, Jul 15, 2014
  19. 18/20 refs.c: remove lock_ref_sha1Ronnie Sahlberg, Jul 15, 2014
  20. 19/20 refs.c: make prune_ref use a transaction to delete the refRonnie Sahlberg, Jul 15, 2014
  21. 20/20 refs.c: make delete_ref use a transactionRonnie Sahlberg, Jul 15, 2014
  22. Ronnie SahlbergJul 15, 2014
  23. Junio C HamanoJul 16, 2014
  24. Ronnie SahlbergJul 16, 2014

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