From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp10.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id cOvaN/S75GNCwwAAbAwnHQ (envelope-from ) for ; Thu, 09 Feb 2023 10:25:09 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp10.migadu.com with LMTPS id MEL3NvS75GN3MwAAG6o9tA (envelope-from ) for ; Thu, 09 Feb 2023 10:25:08 +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 AF0E22CD5A for ; Thu, 9 Feb 2023 10:25:08 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pQ3AY-0002R5-5y; Thu, 09 Feb 2023 04:24:42 -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 1pQ3AX-0002Qu-1O for guix-devel@gnu.org; Thu, 09 Feb 2023 04:24:41 -0500 Received: from mail-4323.proton.ch ([185.70.43.23]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pQ3AV-00056Q-D3; Thu, 09 Feb 2023 04:24:40 -0500 Date: Thu, 09 Feb 2023 09:24:19 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lendvai.name; s=protonmail2; t=1675934669; x=1676193869; bh=jVdbiMh42eEMoeqZ2hQPLamfCLEaRJD1X4vbqM2vqH4=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=NQOTO/mi4fQXYnqvd7epNtvsyQJsI8qCR8ZhRJkywiAOGqmhBYY9FLbz3fL03Lfdc QYqtBjGrLQpEhZ/Y3fr3sPpuLZYiPnsGbs1Og5DuF+v7N1aVvBhUG+kDtmFQpo4Xjr RNGvV7iM+p0wieUDGcuNjSsZgA1IfKaCfTXxae3hcMc0grpoU6XtihJK5DZy9AbrML kwwpHaztHU38dRJT2aljB5zm8jxfi0ReRhzyR3gq5asAq6AdjRDcdR52ksWawH3Kz2 F9zlmCikximzOSv1dGr4j6l7Jk4G98rBq7TsQZaW9gnzxmf0UX9KsXDaEKGZv6Mp0R pN9C1rR3FdLRg== To: =?utf-8?Q?Ludovic_Court=C3=A8s?= From: Attila Lendvai Cc: Maxim Cournoyer , Mathieu Othacehe , guix-devel Subject: Re: configurable guile backtrace in builder Message-ID: In-Reply-To: <87357gzebc.fsf@gnu.org> References: <20230107181938.14334-1-othacehe@gnu.org> <871qo0j1zn.fsf@gmail.com> <87r0vas5zx.fsf_-_@gnu.org> <87zg9xutik.fsf_-_@gmail.com> <87357gzebc.fsf@gnu.org> Feedback-ID: 28384833:user:proton MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=185.70.43.23; envelope-from=attila@lendvai.name; helo=mail-4323.proton.ch X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-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-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN ARC-Seal: i=1; s=key1; d=yhetil.org; t=1675934708; a=rsa-sha256; cv=none; b=PTdtQG/bBYailCR0ct5ValXXAtCcVXX282A9iRxsw5NSLVrSas/UKgyTfuXzrTycVjav9P dorHWy/0TNcbYzFfnFgTvW1Hu8N3fvGUBqSsmQTjtf8eDnL0Q0fKkDd5Q0KwRHu0OyYVpr ClUm66SbpAEptAZayBWRv0ca/tYwpf0fgHaFGQBQ66Rd3Au7VAidbTi+Pc12TeRKbxDK3J d5G4Ck7CLQs7Zte2WOWnySgC2g095qcmIyY1cT6rJL2htq2QFX3BM2nM0iqcxBAbxZjirZ BJCvB81Jal6NpRbVaT262OYPdELzGQ6HpG/UydGbAW+86YmMVCuk28+DV7qC0w== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=lendvai.name header.s=protonmail2 header.b="NQOTO/mi"; dmarc=none; 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" ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1675934708; 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=jVdbiMh42eEMoeqZ2hQPLamfCLEaRJD1X4vbqM2vqH4=; b=SYv3eWijgwbCLrBbT/zQfRl+n94tB04YDg2Emhko6FYGostYvRQrfV8k8Ad0BMhZQg8veV hLjPjCWydhA1BdbiFhP9knwFe4sh2vQbqESdUyGa0/pHRVpdm4zKXgL0TJ1J73iLpEnO/d yqiwH2wBLfJj/VySmTIUjJG1juLDDJtFIPxCL074ZDn5yIFrMr0rJWzK6egWXnv8SIFN1M LIXa09iMAqIdxeKB/4k9mNA+868y5to3uQkid45wWBfKToKLCPlpZUj07djwG9i/udnG4T gSthwAm3sxzsiyZRxQbhMDFVXGT3veOrM92S8uFRgbStyAEakqdJaOd6hqMPGA== X-Spam-Score: -2.10 X-Migadu-Queue-Id: AF0E22CD5A X-Migadu-Scanner: scn0.migadu.com Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=lendvai.name header.s=protonmail2 header.b="NQOTO/mi"; dmarc=none; 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: -2.10 X-TUID: 44t+eiZ0s0U4 > How about passing #:env-vars '(("COLUMNS" . "200")) to > =E2=80=98gexp->derivation=E2=80=99 (in the build system), or adding a pha= se that sets > that environment variable? i assume printed guile backtraces should not be part of the normal output o= f any package. and then why not introduce an env variable (or some other way) that only af= fects the backtrace, and nothing else? --=20 =E2=80=A2 attila lendvai =E2=80=A2 PGP: 963F 5D5F 45C7 DFCD 0A39 -- If the source of fear is the unknown, and fear is the only way to be contro= lled, then knowledge is the only way to be free.