From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id AOUGCjY9nV+VZgAA0tVLHw (envelope-from ) for ; Sat, 31 Oct 2020 10:32:22 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id gIDRBTY9nV8VIgAAbx9fmQ (envelope-from ) for ; Sat, 31 Oct 2020 10:32:22 +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 BA9DF940148 for ; Sat, 31 Oct 2020 10:32:21 +0000 (UTC) Received: from localhost ([::1]:34650 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kYoBI-0000QH-Dq for larch@yhetil.org; Sat, 31 Oct 2020 06:32:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51540) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kYoB1-0000PG-HH for bug-guix@gnu.org; Sat, 31 Oct 2020 06:32:06 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:49047) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kYoB0-00070c-L0 for bug-guix@gnu.org; Sat, 31 Oct 2020 06:32:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kYoB0-00070Y-Hq for bug-guix@gnu.org; Sat, 31 Oct 2020 06:32:02 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#44327: `guix install` doesn't warn about collison in profile Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Sat, 31 Oct 2020 10:32:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 44327 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: zimoun Received: via spool by 44327-submit@debbugs.gnu.org id=B44327.160414031126916 (code B ref 44327); Sat, 31 Oct 2020 10:32:02 +0000 Received: (at 44327) by debbugs.gnu.org; 31 Oct 2020 10:31:51 +0000 Received: from localhost ([127.0.0.1]:60593 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kYoAa-0006zo-S3 for submit@debbugs.gnu.org; Sat, 31 Oct 2020 06:31:51 -0400 Received: from eggs.gnu.org ([209.51.188.92]:51400) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kYoAZ-0006zc-Qk for 44327@debbugs.gnu.org; Sat, 31 Oct 2020 06:31:36 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:36330) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kYoAR-0006qV-Br; Sat, 31 Oct 2020 06:31:27 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=56840 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kYoAQ-0002o0-JV; Sat, 31 Oct 2020 06:31:27 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <86v9esc691.fsf@163.com> <87blgjy9ea.fsf@gnu.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 10 Brumaire an 229 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: Sat, 31 Oct 2020 11:31:24 +0100 In-Reply-To: (zimoun's message of "Fri, 30 Oct 2020 17:30:27 +0100") Message-ID: <87o8kivg8z.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -1.0 (-) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 44327@debbugs.gnu.org, Zhu Zihao 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=pass (policy=none) header.from=gnu.org; 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: -1.51 X-TUID: mQEBvV+XGdjo zimoun skribis: > On Fri, 30 Oct 2020 at 17:20, Ludovic Court=C3=A8s wrote: > >> Currently, =E2=80=98guix install=E2=80=99 errors out if you try to insta= ll two >> same-named packages with a different version number or a different store >> file name (typically via propagated inputs). >> >> Here, =E2=80=98emacs=E2=80=99 and =E2=80=98emacs-xwidgets=E2=80=99 have = different names, so it doesn=E2=80=99t >> complain. >> >> Perhaps we should offer a way to annotate packages as conflicting with >> one another? > > Why? The solution seems to check the path names. Here, the 2 > packages provide 'bin/emacs'; which is the conflict. However, this > could be implemented with care otherwise it will slow down. > I have not check 'union-build' but maybe it is already the case. :-) Yes, =E2=80=98union-build=E2=80=99 already makes that check, but it happens= too late: at build time. This is why back in the day we devised a specific collision detection mechanism that looks at package names/version/store file names, and which can run before anything has been built: https://issues.guix.gnu.org/27271 Ludo=E2=80=99.