add_update(): initialize the whole ref_update

Change add_update() to initialize all of the fields in the new
ref_update object. Rename the function to ref_transaction_add_update(),
and increase its visibility to all of the refs-related code.

All of this makes the function more useful for other future callers.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>

1 files changed, 14 insertions, 0 deletions

diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 9686e60942..babdf2769f 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -158,6 +158,20 @@ struct ref_update {
 };
 
 /*
+ * Add a ref_update with the specified properties to transaction, and
+ * return a pointer to the new object. This function does not verify
+ * that refname is well-formed. new_sha1 and old_sha1 are only
+ * dereferenced if the REF_HAVE_NEW and REF_HAVE_OLD bits,
+ * respectively, are set in flags.
+ */
+struct ref_update *ref_transaction_add_update(
+		struct ref_transaction *transaction,
+		const char *refname, unsigned int flags,
+		const unsigned char *new_sha1,
+		const unsigned char *old_sha1,
+		const char *msg);
+
+/*
  * Transaction states.
  * OPEN:   The transaction is in a valid state and can accept new updates.
  *         An OPEN transaction can be committed.