From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp11.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id yPe8MiGulWNdYwAAbAwnHQ (envelope-from ) for ; Sun, 11 Dec 2022 11:17:05 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp11.migadu.com with LMTPS id yCbKMiGulWOGSQEA9RJhRA (envelope-from ) for ; Sun, 11 Dec 2022 11:17:05 +0100 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 436F810648 for ; Sun, 11 Dec 2022 11:17:05 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p4JO5-0002bd-Av; Sun, 11 Dec 2022 05:16:49 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p4JO0-0002bN-BQ for guix-devel@gnu.org; Sun, 11 Dec 2022 05:16:47 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p4JNz-0004Na-5s; Sun, 11 Dec 2022 05:16:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=MRAgjiSIieBlI1kaNvpVHEC/H4Zr3GBPIkYT+Mhyi/4=; b=hd2Nj2KVaFgmRuARCGqn IOY8YGRlVWDOGWsUM8BtFjijlZ2E1r4HtRBBJgAxbJL1k5CufO70/Mq/CZ/PTI3n7a6exo7PqbJmQ Tx0lgxof6cBjxMoXNT9605FYL7MkLvjP0Mv0dZvIguzrOmaQyOo/swvEfw5Q4Wmx0BrsmqGJy8wsH XhtMVwDUE1X2HtkHbHui21k3+sfaVkycIQV0aau9amy5hpaRaa+Cj4otsdFa9FAJGL7KD52D5ZGSf 2tw02dtIhrUmBgef3zv3mq6n5bbbVFoRYxIh6UPgP+5TewLAI9YoU8FUQCqeBbIjMX+tNvlxLm8OH y4H+XF9RWrTUDA==; Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201] helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p4JNy-0003tm-0a; Sun, 11 Dec 2022 05:16:42 -0500 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Denis 'GNUtoo' Carikli Cc: Csepp , guix-devel@gnu.org Subject: Re: Packaging big generated data files? References: <20221207113315.6a43a206@primary_laptop> <875yemgg37.fsf@riseup.net> <20221210181924.3a883b92@primary_laptop> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: Primidi 21 Frimaire an 231 de la =?utf-8?Q?R=C3=A9vo?= =?utf-8?Q?lution=2C?= jour de =?utf-8?Q?l'=C3=89rable-sucre?= 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: Sun, 11 Dec 2022 11:16:39 +0100 In-Reply-To: <20221210181924.3a883b92@primary_laptop> (Denis Carikli's message of "Sat, 10 Dec 2022 18:19:24 +0100") Message-ID: <87zgbu2qk8.fsf@gnu.org> 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: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: guix-devel-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1670753825; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post:dkim-signature; bh=MRAgjiSIieBlI1kaNvpVHEC/H4Zr3GBPIkYT+Mhyi/4=; b=Q/mWp4gEnKsnQhO88ykTL4dI4lyYG6YAY6Aq8dyxjA1zSCJrFL8quMcLMeoid3ec6DLAM2 TZ0Jk+XfM8d4ppdr5ZW6OmzKtWYy2jsJHDWDBd/8PjvaHgbia/ySiCNjYQltP1fIh7HLoq QS5A2VnVjQ5a3CWGm6GpBDFQaS5YJcU4TBEbuPg2mSTExvxAqUMbz5aa1al4bCVz91m33a qqjCScNUAjRDOjx5olMAAkC3BprejXD+3ZUz1msjuZld048ImqP2XbNgFkDorj8hrxDc7l G5cJ/NU9grSm7xyeu3m2lbQuTheTLrDkaZ8+iKcXLyYzVVqfxcz/BLfvoSIlRw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1670753825; a=rsa-sha256; cv=none; b=L8yJQv6f8UL1Q67m5xtWsxL5HdxbcZT6wzCMwnL+rJ4+NEe2TVYNeIwtNE5Mo2pdmuqK6I BjkRTxpdbbYNuDuOllqXww3FyLrlYe22EtyVtoD6rWDA2yXImiNRUVsSZt66fv0TiTMVWg Auz8L08Xpwbj9zneYSghg+LD/JHJthmKZRIIIPlCF68JA50xuYoyYlsAp6pDkzFU3PdcwM UNw1nFWLpFlWrCEUpG1l7dM0m4k7pjqQhYL64gKAddQlcZ+02mR2mJcj40T00n7VzzBHP4 Xsrwb33RttPfpR2KHp4mU18bks6JxevQPP4K+ZmLTGuXqA2IvVHysnNG4yqS5A== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=gnu.org header.s=fencepost-gnu-org header.b=hd2Nj2KV; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -4.15 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=gnu.org header.s=fencepost-gnu-org header.b=hd2Nj2KV; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 436F810648 X-Spam-Score: -4.15 X-Migadu-Scanner: scn1.migadu.com X-TUID: Kp0LHzmTubwS Hi, Denis 'GNUtoo' Carikli skribis: > On Thu, 08 Dec 2022 14:46:51 +0100 > Csepp wrote: >> Could ZIM files be downloaded over bittorrent as fixed output >> derivations? They can be pretty huge. Also if the system started >> seeding them as well, that would be pretty cool. > I've no idea how to generate fixed output derivations. Origins are lowered into =E2=80=9Cfixed-output derivations=E2=80=9D. They= =E2=80=99re =E2=80=9Cfixed-output=E2=80=9D because their content hash is known in advan= ce, and thus, the method you used to produce them doesn=E2=80=99t matter (info "(guix) Derivations"). So you could specify an origin with =E2=80=98bittorrent-fetch=E2=80=99 (to = be written) instead of =E2=80=98url-fetch=E2=80=99. HTH, Ludo=E2=80=99.