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 wJ9kLE5X617XIwAA0tVLHw (envelope-from ) for ; Thu, 18 Jun 2020 12:00:14 +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 SDQpKE5X614aZwAAbx9fmQ (envelope-from ) for ; Thu, 18 Jun 2020 12:00:14 +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 31FC39407C7 for ; Thu, 18 Jun 2020 12:00:14 +0000 (UTC) Received: from localhost ([::1]:52368 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jltDH-00021K-IT for larch@yhetil.org; Thu, 18 Jun 2020 08:00:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40600) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jltD8-00020p-Fi for guix-patches@gnu.org; Thu, 18 Jun 2020 08:00:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:41448) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jltD8-0006l6-0J for guix-patches@gnu.org; Thu, 18 Jun 2020 08:00:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jltD7-0007dR-UI for guix-patches@gnu.org; Thu, 18 Jun 2020 08:00:01 -0400 X-Loop: help-debbugs@gnu.org Subject: [bug#41882] [PATCH] channels: Allow specifying per-channel --allow-downgrades in the channel file Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Thu, 18 Jun 2020 12:00:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 41882 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: Jakub =?UTF-8?Q?K=C4=85dzio=C5=82ka?= Cc: 41882@debbugs.gnu.org Received: via spool by 41882-submit@debbugs.gnu.org id=B41882.159248156429270 (code B ref 41882); Thu, 18 Jun 2020 12:00:01 +0000 Received: (at 41882) by debbugs.gnu.org; 18 Jun 2020 11:59:24 +0000 Received: from localhost ([127.0.0.1]:52993 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jltCV-0007c2-Ny for submit@debbugs.gnu.org; Thu, 18 Jun 2020 07:59:23 -0400 Received: from eggs.gnu.org ([209.51.188.92]:54164) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jltCS-0007bk-Vt for 41882@debbugs.gnu.org; Thu, 18 Jun 2020 07:59:21 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:38583) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jltCN-0006fF-3k; Thu, 18 Jun 2020 07:59:15 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=60078 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jltCM-0005J8-2J; Thu, 18 Jun 2020 07:59:14 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <20200615210343.18964-1-kuba@kadziolka.net> <87lfkmrqi7.fsf@gnu.org> <20200617185027.ze5euqyuoylpewze@gravity> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 1 Messidor 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: Thu, 18 Jun 2020 13:59:11 +0200 In-Reply-To: <20200617185027.ze5euqyuoylpewze@gravity> ("Jakub \=\?utf-8\?B\?S8SFZHppb8WCa2EiJ3M\=\?\= message of "Wed, 17 Jun 2020 20:50:27 +0200") Message-ID: <874kr8mvow.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-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: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: "Guix-patches" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of guix-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Spam-Score: -1.01 X-TUID: vpdoryGpQqm4 Hi, Jakub K=C4=85dzio=C5=82ka skribis: >> > It gets tiring to have to specify --allow-downgrades when pulling, so I >> > added a way of specifying it in the channels file. As a bonus, it's mo= re >> > granular. >> > >> > If this is the right approach, I'll add some docs. Also, is there a te= st >> > that exercises this function? >>=20 >> I don=E2=80=99t think =E2=80=9Callow-downgrade?=E2=80=9D should be a pro= perty of , >> because conceptually it=E2=80=99s an unrelated piece of configuration. = So I >> think it=E2=80=99s configuration that belongs elsewhere, but there=E2=80= =99s no >> configuration file for =E2=80=98guix pull=E2=80=99 etc. > > It's a property of the channel that the git repo in question is not > monotonic ;) I don=E2=80=99t think we can meaningfully support channels that are rebased= all the time. I agree it=E2=80=99s a use case for some developers, and we need= to accommodate for that, but I wouldn=E2=80=99t want a general mechanism to ma= rk a channel as non-monotonic. > Also, AFAIU, the channels.scm *is* the configuration file for guix > pull, and it is the primary, if not only use of . The data structure is used by =E2=80=98guix pull=E2=80=99, =E2=80= =98guix time-machine=E2=80=99, and =E2=80=98guix describe=E2=80=99. It=E2=80=99s t= he primary way to communicate information about the set of channels being used. So to me it=E2=80=99s ve= ry much orthogonal to whether one wants to allow downgrades, allow offloading, and enable colored output. :-) WDYT? Thanks, Ludo=E2=80=99.