From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp11.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id QHdONqZN3GEPEQEAgWs5BA (envelope-from ) for ; Mon, 10 Jan 2022 16:15:50 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp11.migadu.com with LMTPS id WHWzM6ZN3GHzHQAA9RJhRA (envelope-from ) for ; Mon, 10 Jan 2022 16:15:50 +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 A9D4911DBF for ; Mon, 10 Jan 2022 16:15:50 +0100 (CET) Received: from localhost ([::1]:36836 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n6wOg-0006Su-Ep for larch@yhetil.org; Mon, 10 Jan 2022 10:15:49 -0500 Received: from eggs.gnu.org ([209.51.188.92]:35486) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n6wNY-0006ND-9c for guix-devel@gnu.org; Mon, 10 Jan 2022 10:14:36 -0500 Received: from 7.mo582.mail-out.ovh.net ([46.105.59.196]:43917) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n6wNV-0005pp-QX for guix-devel@gnu.org; Mon, 10 Jan 2022 10:14:35 -0500 Received: from player730.ha.ovh.net (unknown [10.108.16.176]) by mo582.mail-out.ovh.net (Postfix) with ESMTP id C2F9C23832 for ; Mon, 10 Jan 2022 15:14:30 +0000 (UTC) Received: from ngraves.fr (201.238.0.109.rev.sfr.net [109.0.238.201]) (Authenticated sender: ngraves@ngraves.fr) by player730.ha.ovh.net (Postfix) with ESMTPSA id 4C74925F9BB85; Mon, 10 Jan 2022 15:14:28 +0000 (UTC) X-OVh-ClientIp: 109.0.238.201 References: <87tueczl0o.fsf@ngraves.fr> <1c4d376a9b1b117d86c484bdf33aee2d733f6ca6.camel@telenet.be> <87lezohuwv.fsf@gnu.org> User-agent: mu4e 1.6.10; emacs 28.0.50 To: Mathieu Othacehe Cc: Maxime Devos , guix-devel@gnu.org Subject: Re: Branch with only available substitutes ? Date: Mon, 10 Jan 2022 16:04:41 +0100 In-reply-to: <87lezohuwv.fsf@gnu.org> Message-ID: <87zgo3bp2l.fsf@ngraves.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Ovh-Tracer-Id: 5572641589328798261 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvuddrudehuddggeelucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhepfhgfhffvufffjgfkgggtgfesthhqredttderjeenucfhrhhomheppfhitgholhgrshcuifhrrghvvghsuceonhhgrhgrvhgvshesnhhgrhgrvhgvshdrfhhrqeenucggtffrrghtthgvrhhnpedugfevheevieelkedulefgvedthfejhfefvddukeeghfdtgeelffeuieefkefgueenucffohhmrghinhepghhnuhdrohhrghenucfkpheptddrtddrtddrtddpuddtledrtddrvdefkedrvddtudenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhhouggvpehsmhhtphhouhhtpdhhvghlohepphhlrgihvghrjeeftddrhhgrrdhovhhhrdhnvghtpdhinhgvtheptddrtddrtddrtddpmhgrihhlfhhrohhmpehnghhrrghvvghssehnghhrrghvvghsrdhfrhdprhgtphhtthhopehguhhigidquggvvhgvlhesghhnuhdrohhrgh Received-SPF: pass client-ip=46.105.59.196; envelope-from=ngraves@ngraves.fr; helo=7.mo582.mail-out.ovh.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action 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" Reply-to: Nicolas Graves From: Nicolas Graves via "Development of GNU Guix and the GNU System distribution." 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=1641827750; h=from:from:sender:sender:reply-to: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; bh=hLz67I9PaS6HRKTrPqbgZsqqzutn/819PrUPP3NWdXs=; b=IsL0RlL4a0GdAa5J6P1JMPtIpW+Dt6MlnlXJRX3tO+RCaqHmYWZy5ATnU05Dbp6FZIY7oY V+3P7GniOY4wK6n5ULIeJt13jzQ61W9FaB+Kb6+4O4geKYOxpr3JpbbCGCdf3aS9Ynl946 2+Cp4JDl15FTTMrAAGkzGZkL7IthwRMva/7EHwkCmHHkqHYbFlNMQInLAV/LdLVCZsSx5l AKgRkwAbaxPrQidJEKIbI7hU8Vyree4BgJLVlIE1ML4YfxwzfDEe9TTS+xD7SqByiYxqP+ eNkDLLFuVXFcxT8JvEGz+UXCixbGg945TBIurjslrAih/l33hT79J6Ts+jf6VQ== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1641827750; a=rsa-sha256; cv=none; b=FUuBw5faDB7+i3xZPrzxeEj1phb906KPiMvvPaWBkZrV3slKNgMt/wL++ltFGdE4/i7I9x UMqOqTG+NB0icMMzeX8BW4MW5lzI+OVRncVIv3OPa6qJf0PxY5D8ulJW5XGXE3E5HlLAmZ d3j8iIGZWcbqEE1T2w23Cz3w51GqJabxmhDPKHM391m+7xY6TMP1aub7B2GLcddo1dWr75 KqrobwPAgCKGk+m6aFn9B+nhNRHCbnVVfmMN47EaCgutU35tTK8aBy0YRHe0nuaQOQIv2P 1BxBv2ndsAf0kkiRuGqTA8oYsVTlIjlEH03f2ytyRu4OxMqghXBVk7MaF8soMA== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; 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: -4.71 Authentication-Results: aspmx1.migadu.com; dkim=none; 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: A9D4911DBF X-Spam-Score: -4.71 X-Migadu-Scanner: scn0.migadu.com X-TUID: N9eSZsnLE64K Thanks all for your answer. Of course Maxime, wasn't meant to be mean or anything. I'm actually willing to help, although a bit limited in time in the coming weeks. What would be needed to help your pending patch @Mathieu ? Not sure if my scheme is already good enough, but I can try and take a look. Cheers, Nicolas Mathieu Othacehe writes: > Hello, > >> Short answer: yes, but someone has to not just ask whether it's >> possible or tell it =E2=80=98should be easy=E2=80=99, and actually imple= ment all this. >> Also, have a look at channel-with-substitutes-available. >> It's not sufficiently general for your use case though. > > There's also a pending patch extending this procedure to support > manifests: https://issues.guix.gnu.org/47929. > > It still needs some work but it could be conceptually close from what > Nicolas is asking. > > Mathieu