[PATCH 4/5] ref_transaction_commit(): remove the local flags variables

[Michael Haggerty <mhagger@alum.mit.edu>]

Instead, work directly with update->flags. This has the advantage that
the REF_DELETING bit, set in the first loop, can be read in the third
loop instead of having to compute the same expression again. Plus, it
was kindof confusing having both update->flags and flags, which
sometimes had different values.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 refs.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/refs.c b/refs.c
index a55d541..782e777 100644
--- a/refs.c
+++ b/refs.c
@@ -3752,16 +3752,15 @@ int ref_transaction_commit(struct ref_transaction *transaction,
 	/* Acquire all locks while verifying old values */
 	for (i = 0; i < n; i++) {
 		struct ref_update *update = updates[i];
-		unsigned int flags = update->flags;
 
-		if ((flags & REF_HAVE_NEW) && is_null_sha1(update->new_sha1))
-			flags |= REF_DELETING;
+		if ((update->flags & REF_HAVE_NEW) && is_null_sha1(update->new_sha1))
+			update->flags |= REF_DELETING;
 		update->lock = lock_ref_sha1_basic(
 				update->refname,
 				((update->flags & REF_HAVE_OLD) ?
 				 update->old_sha1 : NULL),
 				NULL,
-				flags,
+				update->flags,
 				&update->type);
 		if (!update->lock) {
 			ret = (errno == ENOTDIR)
@@ -3776,9 +3775,8 @@ int ref_transaction_commit(struct ref_transaction *transaction,
 	/* Perform updates first so live commits remain referenced */
 	for (i = 0; i < n; i++) {
 		struct ref_update *update = updates[i];
-		int flags = update->flags;
 
-		if ((flags & REF_HAVE_NEW) && !is_null_sha1(update->new_sha1)) {
+		if ((update->flags & REF_HAVE_NEW) && !is_null_sha1(update->new_sha1)) {
 			int overwriting_symref = ((update->type & REF_ISSYMREF) &&
 						  (update->flags & REF_NODEREF));
 
@@ -3810,15 +3808,14 @@ int ref_transaction_commit(struct ref_transaction *transaction,
 	/* Perform deletes now that updates are safely completed */
 	for (i = 0; i < n; i++) {
 		struct ref_update *update = updates[i];
-		int flags = update->flags;
 
-		if ((flags & REF_HAVE_NEW) && is_null_sha1(update->new_sha1)) {
+		if (update->flags & REF_DELETING) {
 			if (delete_ref_loose(update->lock, update->type, err)) {
 				ret = TRANSACTION_GENERIC_ERROR;
 				goto cleanup;
 			}
 
-			if (!(flags & REF_ISPRUNING))
+			if (!(update->flags & REF_ISPRUNING))
 				string_list_append(&refs_to_delete,
 						   update->lock->ref_name);
 		}
-- 
2.1.4