dir: use the_hash_algo for empty blob object ID

diff --git a/cache.h b/cache.h
index e03a0d4d2378a80aef8339b1e06cbeb8009d5971..14690c84a277a0ab5cbdab3742f9ef909b8da00c 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -324,7 +324,7 @@ struct index_state {
                 drop_cache_tree : 1;
        struct hashmap name_hash;
        struct hashmap dir_hash;
-       unsigned char sha1[20];
+       struct object_id oid;
        struct untracked_cache *untracked;
        uint64_t fsmonitor_last_update;
        struct ewah_bitmap *fsmonitor_dirty;
@@ -1049,6 +1049,9 @@ static inline int is_empty_tree_oid(const struct object_id *oid)
        return !oidcmp(oid, the_hash_algo->empty_tree);
 }
 
+const char *empty_tree_oid_hex(void);
+const char *empty_blob_oid_hex(void);
+
 /* set default permissions by passing mode arguments to open(2) */
 int git_mkstemps_mode(char *pattern, int suffix_len, int mode);
 int git_mkstemp_mode(char *pattern, int mode);