read-cache: fix index corruption with index v4

diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 71c0c768db92378b824951acd6efb7179438017b..14b6e09b42f1d423307c98275f5b203078b82445 100644 (file)
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -919,9 +919,9 @@ static int update_shallow_ref(struct command *cmd, struct shallow_info *si)
  */
 static int head_has_history(void)
 {
-       unsigned char sha1[20];
+       struct object_id oid;
 
-       return !get_sha1("HEAD", sha1);
+       return !get_oid("HEAD", &oid);
 }
 
 static const char *push_to_deploy(unsigned char *sha1,
@@ -1138,7 +1138,7 @@ static const char *update(struct command *cmd, struct shallow_info *si)
                }
                if (ref_transaction_delete(transaction,
                                           namespaced_name,
-                                          old_oid->hash,
+                                          old_oid ? old_oid->hash : NULL,
                                           0, "push", &err)) {
                        rp_error("%s", err.buf);
                        strbuf_release(&err);
@@ -1806,7 +1806,7 @@ static const char *unpack_with_sideband(struct shallow_info *si)
 static void prepare_shallow_update(struct command *commands,
                                   struct shallow_info *si)
 {
-       int i, j, k, bitmap_size = (si->ref->nr + 31) / 32;
+       int i, j, k, bitmap_size = DIV_ROUND_UP(si->ref->nr, 32);
 
        ALLOC_ARRAY(si->used_shallow, si->shallow->nr);
        assign_shallow_commits_to_refs(si, si->used_shallow, NULL);