submodule: make zero-oid comparison hash function agnostic

[thirdparty/git.git] / cache.h

diff --git a/cache.h b/cache.h
index 4d014541ab7bc7692919c871a5306543bbf361c5..d508f3d4f8837caef469389c71950ee96eea709b 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -1041,14 +1041,24 @@ static inline int oidcmp(const struct object_id *oid1, const struct object_id *o
        return hashcmp(oid1->hash, oid2->hash);
 }
 
+static inline int hasheq(const unsigned char *sha1, const unsigned char *sha2)
+{
+       return !hashcmp(sha1, sha2);
+}
+
+static inline int oideq(const struct object_id *oid1, const struct object_id *oid2)
+{
+       return hasheq(oid1->hash, oid2->hash);
+}
+
 static inline int is_null_sha1(const unsigned char *sha1)
 {
-       return !hashcmp(sha1, null_sha1);
+       return hasheq(sha1, null_sha1);
 }
 
 static inline int is_null_oid(const struct object_id *oid)
 {
-       return !hashcmp(oid->hash, null_sha1);
+       return hasheq(oid->hash, null_sha1);
 }
 
 static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
@@ -1085,22 +1095,22 @@ static inline void oidread(struct object_id *oid, const unsigned char *hash)
 
 static inline int is_empty_blob_sha1(const unsigned char *sha1)
 {
-       return !hashcmp(sha1, the_hash_algo->empty_blob->hash);
+       return hasheq(sha1, the_hash_algo->empty_blob->hash);
 }
 
 static inline int is_empty_blob_oid(const struct object_id *oid)
 {
-       return !oidcmp(oid, the_hash_algo->empty_blob);
+       return oideq(oid, the_hash_algo->empty_blob);
 }
 
 static inline int is_empty_tree_sha1(const unsigned char *sha1)
 {
-       return !hashcmp(sha1, the_hash_algo->empty_tree->hash);
+       return hasheq(sha1, the_hash_algo->empty_tree->hash);
 }
 
 static inline int is_empty_tree_oid(const struct object_id *oid)
 {
-       return !oidcmp(oid, the_hash_algo->empty_tree);
+       return oideq(oid, the_hash_algo->empty_tree);
 }
 
 const char *empty_tree_oid_hex(void);
@@ -1518,6 +1528,7 @@ struct checkout {
        unsigned force:1,
                 quiet:1,
                 not_new:1,
+                clone:1,
                 refresh_cache:1;
 };
 #define CHECKOUT_INIT { NULL, "" }