Merge branch 'jk/maint-for-each-packed-object'

The for_each_packed_object() API function did not iterate over
objects in a packfile that hasn't been used yet.

* jk/maint-for-each-packed-object:
  for_each_packed_object: automatically open pack index

sha1_file.c

@@ -3575,14 +3575,19 @@ int for_each_packed_object(each_packed_object_fn cb, void *data, unsigned flags)
 {
 	struct packed_git *p;
 	int r = 0;
+	int pack_errors = 0;
 
 	prepare_packed_git();
 	for (p = packed_git; p; p = p->next) {
 		if ((flags & FOR_EACH_OBJECT_LOCAL_ONLY) && !p->pack_local)
 			continue;
+		if (open_pack_index(p)) {
+			pack_errors = 1;
+			continue;
+		}
 		r = for_each_object_in_pack(p, cb, data);
 		if (r)
 			break;
 	}
-	return r;
+	return r ? r : pack_errors;
 }

t/t5304-prune.sh

@@ -218,6 +218,7 @@ test_expect_success 'gc: prune old objects after local clone' '
 '
 
 test_expect_success 'garbage report in count-objects -v' '
+	test_when_finished "rm -f .git/objects/pack/fake*" &&
 	: >.git/objects/pack/foo &&
 	: >.git/objects/pack/foo.bar &&
 	: >.git/objects/pack/foo.keep &&