Re: [PATCH 5/2] push -s: receiving end

> This stores the GPG signed push certificate in the receiving
> repository using the notes mechanism. The certificate is appended to
> a note in the refs/notes/signed-push tree for each object that
> appears on the right hand side of the push certificate, i.e. the
> object that was pushed to update the tip of a ref.
> 
> Signed-off-by: Junio C Hamano <gitster@pobox.com>
> ---

> diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
> index 307fc3b..257f2a5 100644
> --- a/builtin/receive-pack.c
> +++ b/builtin/receive-pack.c
> @@ -156,6 +161,7 @@ struct command {
>  };
> 
>  static const char pre_receive_hook[] = "hooks/pre-receive";
> +static const char pre_receive_signature_hook[] =
> "hooks/pre-receive-signature"; static const char post_receive_hook[]
> = "hooks/post-receive";
> 
>  static void rp_error(const char *err, ...) __attribute__((format
> (printf, 1, 2))); @@ -581,6 +587,22 @@ static void
> check_aliased_updates(struct command *commands)
> string_list_clear(&ref_list, 0);
>  }
> 
> +static void get_note_text(struct strbuf *buf, struct notes_tree *t,
> +			  const unsigned char *object)
> +{
> +	const unsigned char *sha1 = get_note(t, object);
> +	char *text;
> +	unsigned long len;
> +	enum object_type type;
> +
> +	if (!sha1)
> +		return;
> +	text = read_sha1_file(sha1, &type, &len);
> +	if (text && len && type == OBJ_BLOB)
> +		strbuf_add(buf, text, len);
> +	free(text);
> +}
> +