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 QBobDY+mhV8KQQAA0tVLHw (envelope-from ) for ; Tue, 13 Oct 2020 13:07:27 +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 CNPzCI+mhV/gaAAA1q6Kng (envelope-from ) for ; Tue, 13 Oct 2020 13:07:27 +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 55948940414 for ; Tue, 13 Oct 2020 13:07:26 +0000 (UTC) Received: from localhost ([::1]:55244 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kSK1U-0005VD-2O for larch@yhetil.org; Tue, 13 Oct 2020 09:07:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37208) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kSK19-0005Sm-0G for bug-guix@gnu.org; Tue, 13 Oct 2020 09:07:05 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:34066) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kSK18-0006ej-Lk for bug-guix@gnu.org; Tue, 13 Oct 2020 09:07:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kSK18-00038N-GF for bug-guix@gnu.org; Tue, 13 Oct 2020 09:07:02 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#43843: git-annex is not Reproducible Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Tue, 13 Oct 2020 13:07:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43843 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: zimoun Received: via spool by 43843-submit@debbugs.gnu.org id=B43843.160259437311990 (code B ref 43843); Tue, 13 Oct 2020 13:07:02 +0000 Received: (at 43843) by debbugs.gnu.org; 13 Oct 2020 13:06:13 +0000 Received: from localhost ([127.0.0.1]:45612 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kSK0J-00037I-Gq for submit@debbugs.gnu.org; Tue, 13 Oct 2020 09:06:13 -0400 Received: from eggs.gnu.org ([209.51.188.92]:58364) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kSK0E-00036j-M5 for 43843@debbugs.gnu.org; Tue, 13 Oct 2020 09:06:10 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:35139) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kSK08-0006ZX-V4; Tue, 13 Oct 2020 09:06:00 -0400 Received: from [2001:660:6102:320:e120:2c8f:8909:cdfe] (port=44098 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kSK08-00039Z-DB; Tue, 13 Oct 2020 09:06:00 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <87zh4y8gs8.fsf@gmail.com> <87blhdv2oi.fsf@kyleam.com> <20201008061713.GM21174@E5400> <86imbjqguw.fsf@gmail.com> <87a6wuzamh.fsf@elephly.net> <87v9ffybn3.fsf@elephly.net> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 22 =?UTF-8?Q?Vend=C3=A9miaire?= 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: Tue, 13 Oct 2020 15:05:59 +0200 In-Reply-To: (zimoun's message of "Mon, 12 Oct 2020 13:55:59 +0200") Message-ID: <87tuuyjmx4.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: -3.3 (---) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 43843@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 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: NQ5eCozl0T3L zimoun skribis: > On Mon, 12 Oct 2020 at 12:34, Ricardo Wurmus wrote: > >> > Does the parallel build save a lot of time and CPU? If yes, maybe we >> > could to provide a transformation for the expert, something like >> > "haskell-build-system-with-parellel-build" which tweaks >> > "PARALLEL-BUILD?", similarly to the recent "no tests". WDYT? >> >> We shouldn=E2=80=99t compromise reproducibility for parallel builds. Id= eally we >> would figure out what exactly causes the differences and fix that >> instead of disabling parallel builds, but if that turns out to be too >> difficult I think we should just revert this until we have a good fix. >> >> Perhaps something can be done by fixing the order of files somewhere. > > My proposal is for the expert and not at the CLI level. Something > like "(funky-name ghc-foo)" which returns a new package with > PARALLEL-BUILD? turned to #t. And the default should be #f. WDYT? You can always build with =E2=80=98--cores=3D1=E2=80=99, which will ensure = both the build and test will run sequentially. Ludo=E2=80=99.