general improvements

diff --git a/tag.c b/tag.c
index 1db663d71623a493286c90b13532c7d1cf73f517..bfa0e3143580f4f817fa0722a77224e81c58b615 100644 (file)
--- a/tag.c
+++ b/tag.c
@@ -100,10 +100,9 @@ struct object *deref_tag_noverify(struct object *o)
 
 struct tag *lookup_tag(struct repository *r, const struct object_id *oid)
 {
-       struct object *obj = lookup_object(r, oid->hash);
+       struct object *obj = lookup_object(r, oid);
        if (!obj)
-               return create_object(r, oid->hash,
-                                    alloc_tag_node(r));
+               return create_object(r, oid, alloc_tag_node(r));
        return object_as_type(r, obj, OBJ_TAG, 0);
 }
 
@@ -144,7 +143,7 @@ int parse_tag_buffer(struct repository *r, struct tag *item, const void *data, u
                return 0;
        item->object.parsed = 1;
 
-       if (size < GIT_SHA1_HEXSZ + 24)
+       if (size < the_hash_algo->hexsz + 24)
                return -1;
        if (memcmp("object ", bufptr, 7) || parse_oid_hex(bufptr + 7, &oid, &bufptr) || *bufptr++ != '\n')
                return -1;
@@ -213,3 +212,10 @@ int parse_tag(struct tag *item)
        free(data);
        return ret;
 }
+
+struct object_id *get_tagged_oid(struct tag *tag)
+{
+       if (!tag->tagged)
+               die("bad tag");
+       return &tag->tagged->oid;
+}