From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Matthias Meulien Newsgroups: gmane.emacs.devel Subject: Re: Wrong default-directory in shell buffer Date: Mon, 16 May 2022 21:29:48 +0200 Message-ID: <875ym5i8cz.fsf@gmail.com> References: <874k1vzyom.fsf@posteo.net> <87lev2j3g0.fsf_-_@gmail.com> <87h75pic7h.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6450"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon May 16 21:32:04 2022 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nqgRn-0001RV-Ci for ged-emacs-devel@m.gmane-mx.org; Mon, 16 May 2022 21:32:03 +0200 Original-Received: from localhost ([::1]:54220 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nqgRm-0002bk-1u for ged-emacs-devel@m.gmane-mx.org; Mon, 16 May 2022 15:32:02 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:44976) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nqgPi-00012a-RA for emacs-devel@gnu.org; Mon, 16 May 2022 15:29:54 -0400 Original-Received: from mail-wm1-x32a.google.com ([2a00:1450:4864:20::32a]:50951) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nqgPh-0001gi-6d for emacs-devel@gnu.org; Mon, 16 May 2022 15:29:54 -0400 Original-Received: by mail-wm1-x32a.google.com with SMTP id n6so1573747wms.0 for ; Mon, 16 May 2022 12:29:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version; bh=iPILyAXQCE3GsjatFF5/3NUEPC8TXD4Q+oVscoQe+84=; b=Q7rdtLpnkIaaB1ln8XOW6KRzNGcRMpHhkv7FO1ROHoF+uYA6Y9kFxQUeKqTiHoMqbQ lzfQibK2Y94mrO3kwlzIProuoARay59sD0r7C4nYaO0QUZddietqkNIXdfAlUN99p+vq 9oWIigszf+WJfepOzI0S9pjgUGY5MkPOt6AroTLjqyz8a9AeMbAd1CzjH/1J4CnDzlUI HZG3eHXE5xq5WqRLa9f17KBJF5LkP0an8ZLk/XTBkNnKI1DhsePErJ+9SZTfFn4cw9qA jV2rhoO58omzjnFYyz+OkMKp+J9QSyzTiD83lXqwFGJSAyy7ilYr2nDOJ5F1n1srjJ2D sPBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version; bh=iPILyAXQCE3GsjatFF5/3NUEPC8TXD4Q+oVscoQe+84=; b=GQyo1ERi8kM95kWdzX6CwzIopGHqvmMtv/z/eCdTNwX7DW0jDB/9DqgmGv2/QSyKQQ c/bngVwY9GtSb7CzDZxmLqQPPF/rImw7AkUKPCqw/naR2zU0IAW4D1DNNXElNoWrHHn8 o2BX1x4+PH33K32Kczh7XOa9vvf3/HpVp1kZBmok8lJM8IuzOG2adLNth7LESsJREp2J K88jk6oeLjRshRBZ3MiwUsYbe9Js+IXN8doh+aXxRLeAu5psor8AN/D67Y/eqe7y3pqW r6+QTA0wKMafQdPym0eJ7vWPt3+or7erjTObMSZ9WREul267+K/ma/X+N8ZInGCPzy5p JyGQ== X-Gm-Message-State: AOAM530Qf40MsJUuTMPbvYFfrltsc3hD4N7GWAjQiwZUkN6v20zpaXQq jVPrx7mvbqUbjJ9SF0EOF0QbKCcaBfE= X-Google-Smtp-Source: ABdhPJxEB+QBaOAj2pGSFNRErAtA9OFlz4zvUY7AIDrzcGrz/HuzwQCXViO/JmgkuZPnb2bLPMOkuw== X-Received: by 2002:a05:600c:1d23:b0:394:685b:c18b with SMTP id l35-20020a05600c1d2300b00394685bc18bmr28176180wms.121.1652729391332; Mon, 16 May 2022 12:29:51 -0700 (PDT) Original-Received: from carbon.localdomain ([2a01:e0a:245:c850:98f5:429a:aa8e:95bb]) by smtp.gmail.com with ESMTPSA id x16-20020adfbb50000000b0020d11ee1bcesm1277091wrg.82.2022.05.16.12.29.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 May 2022 12:29:50 -0700 (PDT) In-Reply-To: <87h75pic7h.fsf@gmail.com> (Matthias Meulien's message of "Mon, 16 May 2022 20:06:42 +0200") Received-SPF: pass client-ip=2a00:1450:4864:20::32a; envelope-from=orontee@gmail.com; helo=mail-wm1-x32a.google.com 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:289815 Archived-At: Matthias Meulien writes: > Stefan Monnier writes: > >> Could it be related to "directory tracking", then? > > I guess so. > >> There are several different "solutions" to have shell buffers's >> `default-directory` track the PWD of the shell, so I'm not sure which >> one might be at fault here (if any). > > I see that shell-dirtrack-verbose is t, and dirtrack-mode is nil. Thus I > guess emacs is using the default cd, pushd and popd tracking. > > I'll study this implementation. It's simply that when the input is: mkdir builddir && cd builddir the function shell-directory-tracker fails to see the cd command. I recently develop the habit to call successively: mkdir builddir && cd builddir # do some work cd .. rm -rf builddir repeatedly. If initial value of the default-directory variable is /home/matthias/Projets/argos then after 4 iterations it will have been updated to /, and with the fifth it will be /.. I observed the same behavior with Emacs 27.1. No regression! Comments in shell.el says of directory tracking that: "This is basically a fragile hack". Confirmed. -- Matthias