From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id MAjFOaH4YWBO0AAAgWs5BA (envelope-from ) for ; Mon, 29 Mar 2021 17:56:17 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id mE2qM6H4YWDHJQAAB5/wlQ (envelope-from ) for ; Mon, 29 Mar 2021 15:56:17 +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 9A9822590A for ; Mon, 29 Mar 2021 17:56:17 +0200 (CEST) Received: from localhost ([::1]:36456 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lQuFT-0004oe-Fz for larch@yhetil.org; Mon, 29 Mar 2021 11:56:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37094) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lQuFI-0004VM-2K for guix-patches@gnu.org; Mon, 29 Mar 2021 11:56:04 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:37829) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lQuFH-0005AT-Ql for guix-patches@gnu.org; Mon, 29 Mar 2021 11:56:03 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lQuFH-0002cI-PY for guix-patches@gnu.org; Mon, 29 Mar 2021 11:56:03 -0400 X-Loop: help-debbugs@gnu.org Subject: [bug#45359] bug#47458: Terrible UX upgrading Emacs in Guix Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Mon, 29 Mar 2021 15:56:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45359 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: Mark H Weaver Cc: 47458@debbugs.gnu.org, Maxim Cournoyer , 45359@debbugs.gnu.org Received: via spool by 45359-submit@debbugs.gnu.org id=B45359.161703334510005 (code B ref 45359); Mon, 29 Mar 2021 15:56:03 +0000 Received: (at 45359) by debbugs.gnu.org; 29 Mar 2021 15:55:45 +0000 Received: from localhost ([127.0.0.1]:49370 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lQuEy-0002bD-UX for submit@debbugs.gnu.org; Mon, 29 Mar 2021 11:55:45 -0400 Received: from eggs.gnu.org ([209.51.188.92]:43784) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lQuEw-0002aV-1o; Mon, 29 Mar 2021 11:55:43 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:46737) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lQuEq-0004uk-3t; Mon, 29 Mar 2021 11:55:36 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=49222 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lQuEM-0007Hn-5S; Mon, 29 Mar 2021 11:55:31 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <87o8f23eew.fsf@netris.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 9 Germinal an 229 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: Mon, 29 Mar 2021 17:55:02 +0200 In-Reply-To: <87o8f23eew.fsf@netris.org> (Mark H. Weaver's message of "Sun, 28 Mar 2021 22:02:20 -0400") Message-ID: <87czvineeh.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (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: 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-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1617033377; 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:resent-cc: resent-from:resent-sender:resent-message-id:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post; bh=w/pc3I6fAkvkqGX4go8pwHX3IyZKVcGVipEdccp2cFc=; b=myLye/CtfHYtcGJxeO/NEDKCu5uOHFjIEe19/aa/43UrOLugo4oGAeluep3+tz25f3sIZK cRXshXs1mtkm59MuZJNZvftSd2Hn7xnLw83kWHcyU37+30k+2BkCtPZJKGtOBbnPYhENZK hJb/bWvliLj97hRLoF7OypoOa9p5E8cfHuRkW++ncsnNXDWULmUddoaQB0xiU4bzKOFNuE gPPoBD8B6Ottv9VrtWw8gEWob11xV7trQqYEi0ymc/hhMvAeJ5s38J7WC/QnMCAe0LW7uB EkT9tlENU7VqbrAFgFa7xhsDsNnWbLCwh5ZMNITwX6UO3M/Rl0SbcdMnXyOlxw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1617033377; a=rsa-sha256; cv=none; b=B4wxDFS0bPMZgmJFvA6JjVcVGcTIp6VUJps0kil88hb/Wn/v6ZvcLDzFO3ttOQM0sFahku kYjxrghQv1mNfvEH6igkvPQDboHkP4o2O9Pon9bV0h0voFLlNwFbigFpQurIwXcJQ5jWQA gsGg72zWpFmUcC9+X/BUNJsYoLtbGnwuDmQhrjJAyB6TP5vkMT97iC7lLwpy+lWaQY4OO+ 4VBmaJEkvcD6n4JPBIT/dnH4MeqeLJri+uPfslRXtO2PaMzcnGe8kVP0Q/oaxZetJ7GUC7 mi1orzERDW/BY8mShs3e8tUSPK3J7xBSK+y5tGE6EPU9cpoclKuarH1c52Z03g== 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-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Migadu-Spam-Score: -1.42 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; 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-Migadu-Queue-Id: 9A9822590A X-Spam-Score: -1.42 X-Migadu-Scanner: scn0.migadu.com X-TUID: w99sdCuDUDVg Hi Mark, Mark H Weaver skribis: > Eventually, I realized what the problem was: > > (1) My existing emacs session started failing because > ~/.guix-profile/share/emacs/27.1 had disappeared out from under it. > > (2) My newly launched emacs sessions were failing because my > EMACSLOADPATH variable was still set to its old value, pointing at > /home/mhw/.guix-profile/share/emacs/27.1/lisp, which no longer > existed. > > I'm not sure why I've never run into this problem before. I'm also not > sure what can be done to make this better, but if anyone has ideas, that > would be good. If a 7+ year Guix veteran developer gets bitten badly by > this, I doubt that less experienced users will be impressed. Ouch. =E2=80=9CIt used to be=E2=80=9D (speaking like a veteran :-)) that E= macs in Guix would not use EMACSLOADPATH. Then we switched to EMACSLOADPATH, which had some advantages, but necessarily has this drawback. IIUC, is about possibly backtracking. Maxim, what=E2=80=99s the status of this one? Thanks, Ludo=E2=80=99.