index-pack: a miniscule refactor

Introduce a helper function that takes the type of an object and
tell if it is a delta, as we seem to use this check in many places.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 513fbbc55f0ed438ab11e0bc23c2057690aefd36..0216af76af3dd263182d85333de456a3e2667013 100644 (file)
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -498,12 +498,17 @@ static void sha1_object(const void *data, unsigned long size,
        }
 }
 
+static int is_delta_type(enum object_type type)
+{
+       return (type == OBJ_REF_DELTA || type == OBJ_OFS_DELTA);
+}
+
 static void *get_base_data(struct base_data *c)
 {
        if (!c->data) {
                struct object_entry *obj = c->obj;
 
-               if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA) {
+               if (is_delta_type(obj->type)) {
                        void *base = get_base_data(c->base);
                        void *raw = get_data_from_pack(obj);
                        c->data = patch_delta(
@@ -629,7 +634,7 @@ static void parse_pack_objects(unsigned char *sha1)
                struct object_entry *obj = &objects[i];
                void *data = unpack_raw_entry(obj, &delta->base);
                obj->real_type = obj->type;
-               if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA) {
+               if (is_delta_type(obj->type)) {
                        nr_deltas++;
                        delta->obj_no = i;
                        delta++;
@@ -676,7 +681,7 @@ static void parse_pack_objects(unsigned char *sha1)
                struct object_entry *obj = &objects[i];
                struct base_data base_obj;
 
-               if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA)
+               if (is_delta_type(obj->type))
                        continue;
                base_obj.obj = obj;
                base_obj.data = NULL;