Re: [PATCH v3 14/17] fsck: don't hard die on invalid object types

> diff --git a/object-file.c b/object-file.c
> index 0de699de98..0e8a024eb3 100644
> --- a/object-file.c
> +++ b/object-file.c
> @@ -2522,7 +2522,8 @@ int read_loose_object(const char *path,
>  		      const struct object_id *expected_oid,
>  		      enum object_type *type,
>  		      unsigned long *size,
> -		      void **contents)
> +		      void **contents,
> +		      unsigned int oi_flags)
>  {
>  	int ret = -1;
>  	void *map = NULL;
> @@ -2530,6 +2531,7 @@ int read_loose_object(const char *path,
>  	git_zstream stream;
>  	char hdr[MAX_HEADER_LEN];
>  	struct object_info oi = OBJECT_INFO_INIT;
> +	int allow_unknown = oi_flags & OBJECT_INFO_ALLOW_UNKNOWN_TYPE;
>  	oi.typep = type;
>  	oi.sizep = size;
>  
> @@ -2552,8 +2554,11 @@ int read_loose_object(const char *path,
>  		git_inflate_end(&stream);
>  		goto out;
>  	}
> -	if (*type < 0)
> -		die(_("invalid object type"));
> +	if (!allow_unknown && *type < 0) {
> +		error(_("header for %s declares an unknown type"), path);
> +		git_inflate_end(&stream);
> +		goto out;
> +	}
>  
>  	if (*type == OBJ_BLOB && *size > big_file_threshold) {
>  		if (check_stream_oid(&stream, hdr, *size, path, expected_oid) < 0)