From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id RwpcFRWCqF90MwAA0tVLHw (envelope-from ) for ; Sun, 08 Nov 2020 23:41:09 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id 2PHUEBWCqF9uFgAAB5/wlQ (envelope-from ) for ; Sun, 08 Nov 2020 23:41:09 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id E68D89404D3 for ; Sun, 8 Nov 2020 23:41:08 +0000 (UTC) Received: from localhost ([::1]:56598 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kbuJ0-00021X-Og for larch@yhetil.org; Sun, 08 Nov 2020 18:41:06 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:46898) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kbuH0-0001TG-6V for bug-guix@gnu.org; Sun, 08 Nov 2020 18:39:02 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:49872) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kbuGz-0001qi-OG for bug-guix@gnu.org; Sun, 08 Nov 2020 18:39:01 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kbuGz-0007DH-Jt for bug-guix@gnu.org; Sun, 08 Nov 2020 18:39:01 -0500 X-Loop: help-debbugs@gnu.org Subject: bug#44525: Derivation of computed-file has no outputs Resent-From: Stefan Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Sun, 08 Nov 2020 23:39:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 44525 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: Marius Bakke Received: via spool by 44525-submit@debbugs.gnu.org id=B44525.160487873627715 (code B ref 44525); Sun, 08 Nov 2020 23:39:01 +0000 Received: (at 44525) by debbugs.gnu.org; 8 Nov 2020 23:38:56 +0000 Received: from localhost ([127.0.0.1]:33185 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kbuGu-0007Cx-FN for submit@debbugs.gnu.org; Sun, 08 Nov 2020 18:38:56 -0500 Received: from vsmx012.vodafonemail.xion.oxcs.net ([153.92.174.90]:18760) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kbuGq-0007Ch-02 for 44525@debbugs.gnu.org; Sun, 08 Nov 2020 18:38:54 -0500 Received: from vsmx004.vodafonemail.xion.oxcs.net (unknown [192.168.75.198]) by mta-8-out.mta.xion.oxcs.net (Postfix) with ESMTP id 63D42F35380; Sun, 8 Nov 2020 23:38:46 +0000 (UTC) Received: from macbook-pro.kuh-wiese.my-router.de (unknown [88.70.113.160]) by mta-8-out.mta.xion.oxcs.net (Postfix) with ESMTPA id E29D319ADEA; Sun, 8 Nov 2020 23:38:41 +0000 (UTC) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Stefan In-Reply-To: <87o8k7fuik.fsf@gnu.org> Date: Mon, 9 Nov 2020 00:38:40 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: <045B8C31-3947-4EA6-8B49-5A3B48F18908@vodafonemail.de> <87o8k7fuik.fsf@gnu.org> X-Mailer: Apple Mail (2.3124) X-VADE-STATUS: LEGIT X-Spam-Score: -0.7 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -1.7 (-) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 44525@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: ns3122888.ip-94-23-21.eu Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Spam-Score: -0.51 X-TUID: KwSg3+SzjX04 Hi Marius! > Assuming you intended to write (%current-system) to test.txt, you can = do > something along these lines: >=20 > (computed-file "test.txt" > #~(call-with-output-file #$output > (lambda (port) > (format port #$(%current-system))))) Thanks for this solution. > That's expected: this derivation does not produce any outputs. > So I think this is not-a-bug. WDYT? I think I got a bit distracted by the functionality of plain-file and = the similar wording of the documentation of computed-file. Thanks, I=E2=80=99ll close this issue. Bye Stefan=