cache: add a function to read an object ID from a buffer

diff --git a/cache.h b/cache.h
index bbaf5c349ab893a6f0f4549b61bcc70eff50745f..4bca177cf3fe2200b89a8e51f16cb0f36263d8cf 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -1008,6 +1008,11 @@ static inline void oidclr(struct object_id *oid)
        memset(oid->hash, 0, GIT_MAX_RAWSZ);
 }
 
+static inline void oidread(struct object_id *oid, const unsigned char *hash)
+{
+       memcpy(oid->hash, hash, the_hash_algo->rawsz);
+}
+
 
 #define EMPTY_TREE_SHA1_HEX \
        "4b825dc642cb6eb9a060e54bf8d69288fbee4904"