index: improve constness for reading blob data

diff --git a/diffcore.h b/diffcore.h
index 8a9c9d781a835e2412d0d30fb384062b4dd48a59..623024135478088028cd42b8c6a744ebb04bf0a7 100644 (file)
--- a/diffcore.h
+++ b/diffcore.h
@@ -25,7 +25,7 @@
 struct userdiff_driver;
 
 struct diff_filespec {
-       unsigned char sha1[20];
+       struct object_id oid;
        char *path;
        void *data;
        void *cnt_data;
@@ -33,7 +33,7 @@ struct diff_filespec {
        int count;               /* Reference count */
        int rename_used;         /* Count of rename users */
        unsigned short mode;     /* file mode */
-       unsigned sha1_valid : 1; /* if true, use sha1 and trust mode;
+       unsigned oid_valid : 1;  /* if true, use oid and trust mode;
                                  * if false, use the name and read from
                                  * the filesystem.
                                  */