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From: Ronnie Sahlberg <sahlberg@google.com>
To: git@vger.kernel.org
Cc: mhagger@alum.mit.edu, Ronnie Sahlberg <sahlberg@google.com>
Subject: [PATCH 02/31] refs.c: make ref_transaction_delete a wrapper for ref_transaction_update
Date: Wed, 14 May 2014 15:13:01 -0700	[thread overview]
Message-ID: <1400105610-21194-3-git-send-email-sahlberg@google.com> (raw)
In-Reply-To: <1400105610-21194-1-git-send-email-sahlberg@google.com>

We want to allow to delete a ref even if it only exists as a packed ref
so we must tweak the REF_ISPACKONLY test in _update so it only applies
to the non-delete case.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
---
 refs.c | 17 ++++++-----------
 refs.h |  2 +-
 2 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/refs.c b/refs.c
index fe195dd..c180fa2 100644
--- a/refs.c
+++ b/refs.c
@@ -3326,7 +3326,7 @@ int ref_transaction_update(struct ref_transaction *transaction,
 	if (transaction->status != REF_TRANSACTION_OPEN)
 		die("BUG: update on transaction that is not open");
 
-	if (flags & REF_ISPACKONLY)
+	if (flags & REF_ISPACKONLY && !is_null_sha1(new_sha1))
 		die("BUG: REF_ISPACKONLY can not be used with updates");
 
 	update = add_update(transaction, refname);
@@ -3370,19 +3370,14 @@ int ref_transaction_delete(struct ref_transaction *transaction,
 	if (have_old && !old_sha1)
 		die("BUG: have_old is true but old_sha1 is NULL");
 
+	if (have_old && is_null_sha1(old_sha1))
+		die("BUG: have_old is true but old_sha1 is null_sha1");
+
 	if (transaction->status != REF_TRANSACTION_OPEN)
 		die("BUG: delete on transaction that is not open");
 
-	update = add_update(transaction, refname);
-	update->flags = flags;
-	update->have_old = have_old;
-	if (have_old) {
-		assert(!is_null_sha1(old_sha1));
-		hashcpy(update->old_sha1, old_sha1);
-	}
-	if (msg)
-		update->msg = xstrdup(msg);
-	return 0;
+	return ref_transaction_update(transaction, refname, null_sha1,
+				      old_sha1, flags, have_old, msg);
 }
 
 int update_ref(const char *action, const char *refname,
diff --git a/refs.h b/refs.h
index d615871..8d56edf 100644
--- a/refs.h
+++ b/refs.h
@@ -232,7 +232,7 @@ void ref_transaction_rollback(struct ref_transaction *transaction);
 
 /*
  * Add a reference update to transaction.  new_sha1 is the value that
- * the reference should have after the update, or zeros if it should
+ * the reference should have after the update, or null_sha1 if it should
  * be deleted.  If have_old is true and old_sha is not the null_sha1
  * then the previous value of the ref must match or the update will fail.
  * If have_old is true and old_sha1 is the null_sha1 then the ref must not
-- 
2.0.0.rc3.506.g3739a35

  parent reply	other threads:[~2014-05-14 22:15 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-14 22:12 [PATCH 00/31] Finish implementing ref and reflog transactions Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 01/31] refs.c make ref_transaction_create a wrapper to ref_transaction_update Ronnie Sahlberg
2014-05-14 22:13 ` Ronnie Sahlberg [this message]
2014-05-14 22:13 ` [PATCH 03/31] refs.c: rename the transaction functions Ronnie Sahlberg
2014-05-16 21:15   ` Junio C Hamano
2014-05-19 23:11     ` Ronnie Sahlberg
2014-05-19 23:25       ` Junio C Hamano
2014-05-14 22:13 ` [PATCH 04/31] refs.c: add a new update_type field to ref_update Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 05/31] refs.c: add a function to append a reflog entry to a fd Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 06/31] refs.c: add a transaction function to append a reflog entry Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 07/31] refs.c: add a flag to allow reflog updates to truncate the log Ronnie Sahlberg
2014-05-16 21:20   ` Junio C Hamano
2014-05-19 23:27     ` Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 08/31] refs.c: only write reflog update if msg is non-NULL Ronnie Sahlberg
2014-05-16 21:24   ` Junio C Hamano
2014-05-19 22:55     ` Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 09/31] refs.c: allow multiple reflog updates during a single transaction Ronnie Sahlberg
2014-05-16 21:35   ` Junio C Hamano
2014-05-16 22:01     ` Eric Sunshine
2014-05-19 22:58       ` Ronnie Sahlberg
2014-05-19 23:06     ` Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 10/31] reflog.c: use a reflog transaction when writing during expire Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 11/31] refs.c: null terminate the string in copy_msg Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 12/31] refs.c: track the refnames we are deleting in the transaction structure Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 13/31] refs.c: update the list of deleted refs during _update instead of _commit Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 14/31] refs.c: return error instead of dying when locking fails during transaction Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 15/31] refs.c: lock the ref during _update instead of during _commit Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 16/31] refs.c: add an error argument to create/delete/update just like commit Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 17/31] refs.c: make _update_reflog take an error argument Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 18/31] refs.c: return immediately from _commit if the transaction has an error Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 19/31] tests: move tests for -z update/delete/verify to after the ref is created Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 20/31] refs.c: check for lock conflicts already in _update Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 21/31] refs.c allow multiple updates of the same ref in a transaction Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 22/31] refs.c: release all remaining locks during transaction_free Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 23/31] reflog.c: use the existing transaction to also lock and update the ref Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 24/31] refs.c: make unlock_ref static Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 25/31] refs.c: make close_ref static Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 26/31] refs.c: make commit_ref static Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 27/31] refs.c: remove the function lock_any_ref_for_update Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 28/31] refs.c: make struct ref_lock private to refs.c Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 29/31] refs.c: allow passing raw git_committer_info as email to _update_reflog Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 30/31] refs.c: move ref_update and other definitions to earlier in the file Ronnie Sahlberg
2014-05-14 22:13 ` [PATCH 31/31] refs.c: use the transaction to manage the reflog in rename_refs Ronnie Sahlberg

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