diff --git a/refs.c b/refs.c
index 6898263..2114748 100644
--- a/refs.c
+++ b/refs.c
@@ -3338,7 +3338,8 @@ static struct ref_update *add_update(struct ref_transaction *transaction,
void ref_transaction_update(struct ref_transaction *transaction,
const char *refname,
- unsigned char *new_sha1, unsigned char *old_sha1,
+ const unsigned char *new_sha1,
+ const unsigned char *old_sha1,
int flags, int have_old)
{
struct ref_update *update = add_update(transaction, refname);@@ -3352,7 +3353,7 @@ void ref_transaction_update(struct ref_transaction *transaction,
void ref_transaction_create(struct ref_transaction *transaction,
const char *refname,
- unsigned char *new_sha1,
+ const unsigned char *new_sha1,
int flags)
{
struct ref_update *update = add_update(transaction, refname);@@ -3366,7 +3367,7 @@ void ref_transaction_create(struct ref_transaction *transaction,
void ref_transaction_delete(struct ref_transaction *transaction,
const char *refname,
- unsigned char *old_sha1,
+ const unsigned char *old_sha1,
int flags, int have_old)
{
struct ref_update *update = add_update(transaction, refname);diff --git a/refs.h b/refs.h
index 09ff483..6d97700 100644
--- a/refs.h
+++ b/refs.h
@@ -245,7 +245,8 @@ void ref_transaction_rollback(struct ref_transaction *transaction);
*/
void ref_transaction_update(struct ref_transaction *transaction,
const char *refname,
- unsigned char *new_sha1, unsigned char *old_sha1,
+ const unsigned char *new_sha1,
+ const unsigned char *old_sha1,
int flags, int have_old);
/*
@@ -256,7 +257,7 @@ void ref_transaction_update(struct ref_transaction *transaction,
*/
void ref_transaction_create(struct ref_transaction *transaction,
const char *refname,
- unsigned char *new_sha1,
+ const unsigned char *new_sha1,
int flags);
/*
@@ -266,7 +267,7 @@ void ref_transaction_create(struct ref_transaction *transaction,
*/
void ref_transaction_delete(struct ref_transaction *transaction,
const char *refname,
- unsigned char *old_sha1,
+ const unsigned char *old_sha1,
int flags, int have_old);
/*
--
2.0.0.rc3.471.g2055d11.dirty