merge-recursive: enforce rule that index matches head before merging

diff --git a/cache-tree.c b/cache-tree.c
index 0dd6292a94e55baff0a42df89c7006a757f61065..c52e4303dfcbc6a17796f536e8602017b1d951f0 100644 (file)
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -84,9 +84,8 @@ static struct cache_tree_sub *find_subtree(struct cache_tree *it,
        down->namelen = pathlen;
 
        if (pos < it->subtree_nr)
-               memmove(it->down + pos + 1,
-                       it->down + pos,
-                       sizeof(down) * (it->subtree_nr - pos - 1));
+               MOVE_ARRAY(it->down + pos + 1, it->down + pos,
+                          it->subtree_nr - pos - 1);
        it->down[pos] = down;
        return down;
 }
@@ -400,16 +399,16 @@ static int update_one(struct cache_tree *it,
        }
 
        if (repair) {
-               unsigned char sha1[20];
-               hash_sha1_file(buffer.buf, buffer.len, tree_type, sha1);
-               if (has_sha1_file(sha1))
-                       hashcpy(it->oid.hash, sha1);
+               struct object_id oid;
+               hash_object_file(buffer.buf, buffer.len, tree_type, &oid);
+               if (has_sha1_file(oid.hash))
+                       oidcpy(&it->oid, &oid);
                else
                        to_invalidate = 1;
-       } else if (dryrun)
-               hash_sha1_file(buffer.buf, buffer.len, tree_type,
-                              it->oid.hash);
-       else if (write_sha1_file(buffer.buf, buffer.len, tree_type, it->oid.hash)) {
+       } else if (dryrun) {
+               hash_object_file(buffer.buf, buffer.len, tree_type, &it->oid);
+       } else if (write_object_file(buffer.buf, buffer.len, tree_type,
+                                    &it->oid)) {
                strbuf_release(&buffer);
                return -1;
        }