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[PATCH 02/15] refs.c: return error instead of dying when locking fails during transaction

From
Ronnie Sahlberg <sahlberg@google.com>
Date
Oct 21, 2014, 20:36 UTC
Message-ID
<1413923820-14457-3-git-send-email-sahlberg@google.com>
In-Reply-To
<1413923820-14457-1-git-send-email-sahlberg@google.com>
commit e193c10fc4f9274d1e751cfcdcc4507818e8d498 upstream.

Change lock_ref_sha1_basic to return an error instead of dying when we fail to lock a file during a transaction. This function is only called from transaction_commit() and it knows how to handle these failures.

Change-Id: Ie830b7970412d9299e76a86f08633ce721130aed
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
 refs.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/refs.c b/refs.c
index e49fbe9..c088d36 100644
--- a/refs.c
+++ b/refs.c
@@ -2340,6 +2340,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
 
 	lock->lock_fd = hold_lock_file_for_update(lock->lk, ref_file, lflags);
 	if (lock->lock_fd < 0) {
+		last_errno = errno;
 		if (errno == ENOENT && --attempts_remaining > 0)
 			/*
 			 * Maybe somebody just deleted one of the
@@ -2347,8 +2348,13 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
 			 * again:
 			 */
 			goto retry;
-		else
-			unable_to_lock_die(ref_file, errno);
+		else {
+			struct strbuf err = STRBUF_INIT;
+			unable_to_lock_message(ref_file, errno, &err);
+			error("%s", err.buf);
+			strbuf_reset(&err);
+			goto error_return;
+		}
 	}
 	return old_sha1 ? verify_lock(lock, old_sha1, mustexist) : lock;
 
-- 
2.1.0.rc2.206.gedb03e5
Previous: Ronnie SahlbergNext: Jeff King
Message 3 of 27 in “ref-transaction-rename”
  1. 00/15 ref-transaction-renameRonnie Sahlberg, Oct 21, 2014
  2. 01/15 refs.c: allow passing raw git_committer_info as email to _update_reflogRonnie Sahlberg, Oct 21, 2014
  3. 02/15 refs.c: return error instead of dying when locking fails during transactionRonnie Sahlberg, Oct 21, 2014
  4. Jeff KingNov 11, 2014
  5. Ronnie SahlbergNov 11, 2014
  6. 03/15 refs.c: use packed refs when deleting refs during a transactionRonnie Sahlberg, Oct 21, 2014
  7. Junio C HamanoOct 22, 2014
  8. 04/15 refs.c: use a stringlist for repack_without_refsRonnie Sahlberg, Oct 21, 2014
  9. 05/15 refs.c: update rename_ref to use a transactionRonnie Sahlberg, Oct 21, 2014
  10. Junio C HamanoOct 28, 2014
  11. Junio C HamanoOct 28, 2014
  12. Ronnie SahlbergOct 28, 2014
  13. Junio C HamanoOct 28, 2014
  14. Ronnie SahlbergOct 29, 2014
  15. Junio C HamanoOct 29, 2014
  16. Ronnie SahlbergOct 30, 2014
  17. 06/15 refs.c: rollback the lockfile before we die() in repack_without_refsRonnie Sahlberg, Oct 21, 2014
  18. 07/15 refs.c: move reflog updates into its own functionRonnie Sahlberg, Oct 21, 2014
  19. 08/15 refs.c: write updates to packed refs when a transaction has more than one refRonnie Sahlberg, Oct 21, 2014
  20. 09/15 remote.c: use a transaction for deleting refsRonnie Sahlberg, Oct 21, 2014
  21. 10/15 refs.c: make repack_without_refs staticRonnie Sahlberg, Oct 21, 2014
  22. 11/15 refs.c: make the *_packed_refs functions staticRonnie Sahlberg, Oct 21, 2014
  23. 12/15 refs.c: replace the onerr argument in update_ref with a strbuf errRonnie Sahlberg, Oct 21, 2014
  24. 13/15 refs.c: make add_packed_ref return an error instead of calling dieRonnie Sahlberg, Oct 21, 2014
  25. 14/15 refs.c: make lock_packed_refs take an err argumentRonnie Sahlberg, Oct 21, 2014
  26. 15/15 refs.c: add an err argument to pack_refsRonnie Sahlberg, Oct 21, 2014
  27. Junio C HamanoOct 30, 2014

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