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04 May 2023 15:05:45 +0200 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <878rf8hch7.fsf@ngraves.fr> <87pm7rx98e.fsf@gnu.org> <87edo49if5.fsf@gmail.com> <87pm7j9o29.fsf@inria.fr> <86edny1uky.fsf@gmail.com> <87bkj0v9w0.fsf@inria.fr> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: Quintidi 15 =?UTF-8?Q?Flor=C3=A9al?= an 231 de la =?UTF-8?Q?R=C3=A9volution,?= jour du Ver =?UTF-8?Q?=C3=A0?= soie 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, 04 May 2023 15:05:44 +0200 In-Reply-To: (Simon Tournier's message of "Thu, 4 May 2023 09:57:26 +0200") Message-ID: <878re4qmaf.fsf@inria.fr> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: bug-guix-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Seal: i=1; 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bh=IDpBZwPdob9yMJ73w04Qwd0EtHLHSbIBaT2WwDXZUrw=; b=O2iOyBUtq9uu4oGF94MUlX2EM5/MKUI6m3qsMLgyAPr+uUEW+3lm7eINeDdG1Jtnfblmm4 4n0+MJSIAckVkatJh6BSCDo7Yw7jLnBPLNg2Jf8M0JvokAYj3clBS2s3oDWDoCqY0muLw9 fJg2EGvrlq7/74WWwT8INJDX5E4hgfyRJmU8JfihuUiSZNk8DyuEiTYA8dZQKwTp7Bdqtz 1MFs+j5rDJkGEBb3MVkxl9/Usw5i9mIr9db0EqBcO7tecLHFu5rrUBncGxqaw9YS8aVcGD RnqUiTAywB/Jnfi4B0ttS6gp8ysBGm1GCUVANSDvdx0c42aoxGdUC2xRCDZpLQ== X-Migadu-Scanner: scn1.migadu.com Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=inria.fr header.s=dc header.b=Q6Pxxx4t; dmarc=fail reason="SPF not aligned (relaxed)" header.from=inria.fr (policy=none); spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: 7.29 X-Spam-Score: 7.29 X-Migadu-Queue-Id: B82B63BC75 X-TUID: kwmPgvp69khF Hi, Simon Tournier skribis: > On Thu, 4 May 2023 at 09:22, Ludovic Court=C3=A8s wrote: > >> > Even if the bug on SWH would be fixed, at the rate the Guix repo is >> > growing, it would be impractical to cook the whole Guix repo. >> >> Falling back to SWH to fetch channels is something we expect to be rare, >> though. > > Being rare will not make it practical. ;-) > > What I am trying to point is that considering the size of the Guix > repository and its rate, the current implementation will not scale and > the fallback will be impossible for the end-user. It=E2=80=99s not impossible, it just takes time (how long exactly, I don=E2= =80=99t know, we should check with the SWH folks what we can expect and what the relevant factors are.) That it takes time is acceptable IMO: we=E2=80=99re likely talking about disaster recovery after the Savannah repo and its GitHub mirror have disappeared. Other channels, are typically smaller but also more likely to vanish; I wonder how that affects the cooking time at SWH=E2=80=94again something to = ask them. >> > And it appears to me weird when we, most of the time, need a very >> > restricted set of commits. >> > >> > We could imagine to locally create a new repo (git init) and only add >> > the content of the commit specified by =E2=80=9Cguix time-machine=E2= =80=9D. >> >> To do that we=E2=80=99d need to say goodbye to the features I mentioned = above. > > Well, I do not see which features will be missing. Those mentioned earlier, provenance tracking and downgrade detection in particular. Ludo=E2=80=99.