From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id CLiHOgTxGl/KcgAA0tVLHw (envelope-from ) for ; Fri, 24 Jul 2020 14:32:36 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id kGpHNgTxGl+bSQAA1q6Kng (envelope-from ) for ; Fri, 24 Jul 2020 14:32:36 +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 670B69402D1 for ; Fri, 24 Jul 2020 14:32:36 +0000 (UTC) Received: from localhost ([::1]:39448 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jyykV-0004fu-B6 for larch@yhetil.org; Fri, 24 Jul 2020 10:32:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47464) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jyykK-0004eI-8I for help-guix@gnu.org; Fri, 24 Jul 2020 10:32:24 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:53446) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jyykJ-0004YT-SB; Fri, 24 Jul 2020 10:32:23 -0400 Received: from [2001:660:6102:320:e120:2c8f:8909:cdfe] (port=50206 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jyykJ-0002DP-FP; Fri, 24 Jul 2020 10:32:23 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Christopher Baines Subject: Re: Unable to build derivation, even if inputs are available References: <87mu4x7vpg.fsf@cbaines.net> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 7 Thermidor an 228 de la =?utf-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Fri, 24 Jul 2020 16:32:20 +0200 In-Reply-To: <87mu4x7vpg.fsf@cbaines.net> (Christopher Baines's message of "Sat, 20 Jun 2020 13:44:43 +0100") Message-ID: <87lfj96l1n.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: help-guix@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: help-guix@gnu.org Errors-To: help-guix-bounces+larch=yhetil.org@gnu.org Sender: "Help-Guix" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of help-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=help-guix-bounces@gnu.org X-Spam-Score: -1.01 X-TUID: Wcx1jTE1h8G4 Hi, Christopher Baines skribis: > I thought I was beginning to understand derivations, but I've hit a > problem I can't explain. > > I've got a derivation in my local store, and as far as I can work out, > all the outputs for all the required inputs of this derivation are in > the store as well. > > scheme@(guix-user)> (use-modules (srfi srfi-1) (guix derivations)) > scheme@(guix-user)> (define drv (read-derivation-from-file "/gnu/store/= mafs37vw7k65ah071p8f080c9y1y3l7n-bbmap-35.82.drv")) > scheme@(guix-user)> (define required-outputs (append-map derivation-inp= ut-output-paths (derivation-inputs drv))) > scheme@(guix-user)> (define missing-outputs (remove file-exists? requir= ed-outputs)) > scheme@(guix-user)> missing-outputs > $1 =3D () You should use =E2=80=98valid-path?=E2=80=99 instead of =E2=80=98file-exist= s?=E2=80=99: it=E2=80=99s possible for an item to be present in store while being =E2=80=9Cinvalid=E2=80=9D, f= or instance because it=E2=80=99s a leftover from a failed build (with =E2=80=98-K=E2=80= =99). Ludo=E2=80=99.