Received: (at 13522) by debbugs.gnu.org; 14 Mar 2022 17:32:45 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Mar 14 13:32:45 2022 Received: from localhost ([127.0.0.1]:46211 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nToYn-0001vz-5k for submit <at> debbugs.gnu.org; Mon, 14 Mar 2022 13:32:45 -0400 Received: from cventin.lip.ens-lyon.fr ([140.77.13.17]:35018) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <vincent@HIDDEN>) id 1nToYk-0001vq-WD for 13522 <at> debbugs.gnu.org; Mon, 14 Mar 2022 13:32:43 -0400 Received: from vlefevre by cventin.lip.ens-lyon.fr with local (Exim 4.95) (envelope-from <vincent@HIDDEN>) id 1nToYf-0005dE-RX; Mon, 14 Mar 2022 18:32:37 +0100 Date: Mon, 14 Mar 2022 18:32:37 +0100 From: Vincent Lefevre <vincent@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions Message-ID: <20220314173237.GD2381@HIDDEN> References: <87622qaszq.fsf@HIDDEN> <8735jkye2q.fsf@HIDDEN> <83mthsk63c.fsf@HIDDEN> <87sfrkwsy5.fsf@HIDDEN> <83fsnkk4so.fsf@HIDDEN> <20220314152053.GB2381@HIDDEN> <83bky8jwmh.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <83bky8jwmh.fsf@HIDDEN> X-Mailer-Info: https://www.vinc17.net/mutt/ User-Agent: Mutt/2.2.1+12 (1ba319cf) vl-138565 (2022-03-05) X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 13522 Cc: larsi@HIDDEN, 13522 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 2022-03-14 19:02:14 +0200, Eli Zaretskii wrote: > > Note that in any case, C-x C-c in Emacs does not replace Ctrl-C in the > > terminal, as with C-x C-c, Emacs quits with a zero exit status, which > > may not be what one wants. Example: in a "svn ci", one may want to > > abort the commit without losing the text written in Emacs. Ctrl-C in > > the terminal (where "svn ci" has been run) allows one to do that. > > Emacs is not SVN, and doesn't work in transactions. You missed my point. "svn ci" runs an editor, e.g. Emacs. If I want to interrupt (i.e. abort) the "svn ci", I need to do Ctrl-C in the terminal. The same is true with shell scripts that run Emacs. > > SIGINT could be equivalent to something like C-g in Emacs + quit > > without saving (a backup of the current buffer can be kept), > > exiting with a non-zero exit status. Note that you do not need to > > do everything in the signal handler. In general, what is done is > > just to set some variable saying that SIGINT has been received. > > The abort of the operations is done in the main code. > > When the program is delivered a fatal signal, the only way to get back > to "main code" is longjmp from the signal handler, which is already > "not recommended", to say the least. No, SIGINT is *not* a fatal signal. What is done with it is what the application decides. You don't need a longjmp. Setting a variable in the signal handler and handle it in the general code should be sufficient. BTW, there's the same issue when requesting to close the X11 window. I get a "Question" dialogue, asking me whether I want to save the file. I answer "No". I get another question saying Modified buffers exist; exit anyway? I answer "Yes". Emacs quits, but the file is no longer there; there's just the backup. Handling SIGINT could be similar to this case (which should be fixed), where the answers "No" and "Yes" are assumed. -- Vincent Lefèvre <vincent@HIDDEN> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 14 Mar 2022 17:02:35 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Mar 14 13:02:35 2022 Received: from localhost ([127.0.0.1]:46171 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nTo5a-00014M-WA for submit <at> debbugs.gnu.org; Mon, 14 Mar 2022 13:02:35 -0400 Received: from eggs.gnu.org ([209.51.188.92]:55122) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1nTo5Z-000145-BT for 13522 <at> debbugs.gnu.org; Mon, 14 Mar 2022 13:02:34 -0400 Received: from [2001:470:142:3::e] (port=46860 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1nTo5T-0002gw-Rp; Mon, 14 Mar 2022 13:02:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=iPN504dxWKdd01E+bjPpYyTbkc6bUQzthV6ecMevsYA=; b=ZLp75BqM9r3n nwdXc5l1q/I1ljMFgl19Ufw7MVzbmrt+Ax32cTXvpUjyJOc4Q1So9bjHAUySIPB/3tGvdTDtnh34L NyW1WlOiZI+CspCXYF8yannyQqswfbU2m/wRKXmfuCAcVtuov/T6s/tXUnCkmZ40sAverLllikz2j BUUMY0CgLMIZNTZu7/isE9tygtqk+oX0Vya7FaKLxZcP48oiNIR8HO2nlIJdTefIVn2zLak7Mdw5j 3H+xRQoF+OnrjcgEY783ZItuWoWEkEX0EMtiFmoNlx8upyjGd1IwBsP9eZSvrs0qN/cY/g7guym7+ gYScRQ1DaaYWLei4rk2KSg==; Received: from [87.69.77.57] (port=3830 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1nTo5T-0001ki-BN; Mon, 14 Mar 2022 13:02:27 -0400 Date: Mon, 14 Mar 2022 19:02:14 +0200 Message-Id: <83bky8jwmh.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Vincent Lefevre <vincent@HIDDEN> In-Reply-To: <20220314152053.GB2381@HIDDEN> (message from Vincent Lefevre on Mon, 14 Mar 2022 16:20:53 +0100) Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions References: <87622qaszq.fsf@HIDDEN> <8735jkye2q.fsf@HIDDEN> <83mthsk63c.fsf@HIDDEN> <87sfrkwsy5.fsf@HIDDEN> <83fsnkk4so.fsf@HIDDEN> <20220314152053.GB2381@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 13522 Cc: larsi@HIDDEN, 13522 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Mon, 14 Mar 2022 16:20:53 +0100 > From: Vincent Lefevre <vincent@HIDDEN> > Cc: Lars Ingebrigtsen <larsi@HIDDEN>, 13522 <at> debbugs.gnu.org > > This is silly. Ctrl-C is *standard* to interrupt commands. When there > is a risk to lose data or to get in an inconsistent state, commands > should trap SIGINT (either to ignore it or to do some cleanup before > exiting). That's what Emacs does. Except that not every processing interrupted in its middle can be restarted and run to its "normal" completion. > Note that in any case, C-x C-c in Emacs does not replace Ctrl-C in the > terminal, as with C-x C-c, Emacs quits with a zero exit status, which > may not be what one wants. Example: in a "svn ci", one may want to > abort the commit without losing the text written in Emacs. Ctrl-C in > the terminal (where "svn ci" has been run) allows one to do that. Emacs is not SVN, and doesn't work in transactions. > In this bug, the issue is actually more important: When one does > C-x C-s, the file has been renamed, which is bad, because the user > may not choose what to do immediately, and many things can happen > in the period, such as a power outage, a network outage, a crash of > the machine, etc. The user may not notice the issue with the file > immediately, so that he may lose the contents (or the changes, e.g. > if the file is handled by a VCS). The file may also be needed by > other software while the user is editing it (for instance, as backup > software, or some application if this is a configuration file). There should be an auto-save file to recover your edits. > > SIGINT is a fatal signal, and our response to fatal signals cannot > > be too fancy. We just auto-save what we can and commit suicide. Even > > that is disliked by some, who say we cannot safely do anything > > non-trivial from a fatal signal handler -- and they are absolutely > > right, we do stuff that invokes undefined behavior. > > SIGINT could be equivalent to something like C-g in Emacs + quit > without saving (a backup of the current buffer can be kept), > exiting with a non-zero exit status. Note that you do not need to > do everything in the signal handler. In general, what is done is > just to set some variable saying that SIGINT has been received. > The abort of the operations is done in the main code. When the program is delivered a fatal signal, the only way to get back to "main code" is longjmp from the signal handler, which is already "not recommended", to say the least. Anyway, what you describe is not what actually happens, AFAIK. Handling a fatal signal and handling C-g are very different in Emacs. But maybe I'm missing something, so I will let others speak up.
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 14 Mar 2022 15:21:00 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Mar 14 11:21:00 2022 Received: from localhost ([127.0.0.1]:46004 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nTmVI-0006aO-AK for submit <at> debbugs.gnu.org; Mon, 14 Mar 2022 11:21:00 -0400 Received: from cventin.lip.ens-lyon.fr ([140.77.13.17]:35004) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <vincent@HIDDEN>) id 1nTmVG-0006aG-AI for 13522 <at> debbugs.gnu.org; Mon, 14 Mar 2022 11:20:58 -0400 Received: from vlefevre by cventin.lip.ens-lyon.fr with local (Exim 4.95) (envelope-from <vincent@HIDDEN>) id 1nTmVB-0004Pc-7z; Mon, 14 Mar 2022 16:20:53 +0100 Date: Mon, 14 Mar 2022 16:20:53 +0100 From: Vincent Lefevre <vincent@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions Message-ID: <20220314152053.GB2381@HIDDEN> References: <87622qaszq.fsf@HIDDEN> <8735jkye2q.fsf@HIDDEN> <83mthsk63c.fsf@HIDDEN> <87sfrkwsy5.fsf@HIDDEN> <83fsnkk4so.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <83fsnkk4so.fsf@HIDDEN> X-Mailer-Info: https://www.vinc17.net/mutt/ User-Agent: Mutt/2.2.1+12 (1ba319cf) vl-138565 (2022-03-05) X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 13522 Cc: Lars Ingebrigtsen <larsi@HIDDEN>, 13522 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 2022-03-14 16:05:43 +0200, Eli Zaretskii wrote: > > From: Lars Ingebrigtsen <larsi@HIDDEN> > > Cc: vincent@HIDDEN, 13522 <at> debbugs.gnu.org > > Date: Mon, 14 Mar 2022 14:43:14 +0100 > > > > Eli Zaretskii <eliz@HIDDEN> writes: > > > > > Is it "C-c to kill Emacs" as in "terminate Emacs with a fatal signal", > > > or is it "C-x C-c" as in "exit Emacs in an orderly fashion"? > > > > > > If the former, then in general killing a program when it is in the > > > middle of writing files isn't guaranteed to preserve those files. > > > > It's the former (sort of). > > > > And, yes, we make no guarantees, but the present situation doesn't seem > > optimal. The user may well hit `C-z' at the prompt and wonder where the > > file disappeared to. > > That's in the "if it hurts, don't do that" department, IMO. This is silly. Ctrl-C is *standard* to interrupt commands. When there is a risk to lose data or to get in an inconsistent state, commands should trap SIGINT (either to ignore it or to do some cleanup before exiting). Note that in any case, C-x C-c in Emacs does not replace Ctrl-C in the terminal, as with C-x C-c, Emacs quits with a zero exit status, which may not be what one wants. Example: in a "svn ci", one may want to abort the commit without losing the text written in Emacs. Ctrl-C in the terminal (where "svn ci" has been run) allows one to do that. In this bug, the issue is actually more important: When one does C-x C-s, the file has been renamed, which is bad, because the user may not choose what to do immediately, and many things can happen in the period, such as a power outage, a network outage, a crash of the machine, etc. The user may not notice the issue with the file immediately, so that he may lose the contents (or the changes, e.g. if the file is handled by a VCS). The file may also be needed by other software while the user is editing it (for instance, as backup software, or some application if this is a configuration file). > SIGINT is a fatal signal, and our response to fatal signals cannot > be too fancy. We just auto-save what we can and commit suicide. Even > that is disliked by some, who say we cannot safely do anything > non-trivial from a fatal signal handler -- and they are absolutely > right, we do stuff that invokes undefined behavior. SIGINT could be equivalent to something like C-g in Emacs + quit without saving (a backup of the current buffer can be kept), exiting with a non-zero exit status. Note that you do not need to do everything in the signal handler. In general, what is done is just to set some variable saying that SIGINT has been received. The abort of the operations is done in the main code. -- Vincent Lefèvre <vincent@HIDDEN> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 14 Mar 2022 14:06:03 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Mar 14 10:06:02 2022 Received: from localhost ([127.0.0.1]:45902 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nTlKk-0004Um-Jg for submit <at> debbugs.gnu.org; Mon, 14 Mar 2022 10:06:02 -0400 Received: from eggs.gnu.org ([209.51.188.92]:44602) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1nTlKj-0004UG-8B for 13522 <at> debbugs.gnu.org; Mon, 14 Mar 2022 10:06:01 -0400 Received: from [2001:470:142:3::e] (port=48922 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1nTlKd-00072I-Nm; Mon, 14 Mar 2022 10:05:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=11jHEJ8hpFdZy3mq1/AMclhznm9UwV93d3M6BioZ+aY=; b=h3YoGOHJMbz8 r6uHHY9auihBlsCEaZAkcVg5uxUd3S0gvmtOJ1ocUjhUBIb1XvjMuT5WhKF1WYmzLZGJt0lyHFlxG QYN5bdpxaus2d3hiNDHlANKT65G6Ljl2THuCfT+SHKHu6pHg+QnblkcQsMbUL2e4cc0IjLLRR+UuL nX4QSlFZlzEuSfjMtx/ZYuyeaO9EVKIV/y+2JtQelJv16DXsjnMv80sdUzYoo7tQopYDUjNVaC4SC MOFx+wlXcjYas186K8fJ6NUIyePet3gaB4V5XMaFcfJcUUvFrim1FTGy0v4vqL5VTcUZ2NkSaWpaY 75xHcqCt57A9WgoLu0ZJdA==; Received: from [87.69.77.57] (port=4841 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1nTlKd-0003Uk-5w; Mon, 14 Mar 2022 10:05:55 -0400 Date: Mon, 14 Mar 2022 16:05:43 +0200 Message-Id: <83fsnkk4so.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Lars Ingebrigtsen <larsi@HIDDEN> In-Reply-To: <87sfrkwsy5.fsf@HIDDEN> (message from Lars Ingebrigtsen on Mon, 14 Mar 2022 14:43:14 +0100) Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions References: <87622qaszq.fsf@HIDDEN> <8735jkye2q.fsf@HIDDEN> <83mthsk63c.fsf@HIDDEN> <87sfrkwsy5.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 13522 Cc: 13522 <at> debbugs.gnu.org, vincent@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Lars Ingebrigtsen <larsi@HIDDEN> > Cc: vincent@HIDDEN, 13522 <at> debbugs.gnu.org > Date: Mon, 14 Mar 2022 14:43:14 +0100 > > Eli Zaretskii <eliz@HIDDEN> writes: > > > Is it "C-c to kill Emacs" as in "terminate Emacs with a fatal signal", > > or is it "C-x C-c" as in "exit Emacs in an orderly fashion"? > > > > If the former, then in general killing a program when it is in the > > middle of writing files isn't guaranteed to preserve those files. > > It's the former (sort of). > > And, yes, we make no guarantees, but the present situation doesn't seem > optimal. The user may well hit `C-z' at the prompt and wonder where the > file disappeared to. That's in the "if it hurts, don't do that" department, IMO. SIGINT is a fatal signal, and our response to fatal signals cannot be too fancy. We just auto-save what we can and commit suicide. Even that is disliked by some, who say we cannot safely do anything non-trivial from a fatal signal handler -- and they are absolutely right, we do stuff that invokes undefined behavior.
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 14 Mar 2022 13:43:28 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Mar 14 09:43:27 2022 Received: from localhost ([127.0.0.1]:44410 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nTkyt-0001I6-NY for submit <at> debbugs.gnu.org; Mon, 14 Mar 2022 09:43:27 -0400 Received: from quimby.gnus.org ([95.216.78.240]:42772) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <larsi@HIDDEN>) id 1nTkys-0001Hp-8b for 13522 <at> debbugs.gnu.org; Mon, 14 Mar 2022 09:43:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=6p5HC5S2B+9RXBRSQmLwcRLJrnrb3RVTsBmSHiXWUx4=; b=O9HN7B/rDZDDACEFehw2FEldV/ CWA413smPxyiwFPji1+9Vad9geyu8LUjEiu4PMEiJ7PZFbsx2pV90WDoeCJx0b1KRc3+8iu8qq+G2 frSlIW3sPBfqZ/mJ5z4qvpfMBFgn7c5+cs6ljSWNOSfJAQGP82KecdBJkrgf6hE2XUw8=; Received: from [84.212.220.105] (helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <larsi@HIDDEN>) id 1nTkyi-0007C9-Gt; Mon, 14 Mar 2022 14:43:19 +0100 From: Lars Ingebrigtsen <larsi@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions References: <87622qaszq.fsf@HIDDEN> <8735jkye2q.fsf@HIDDEN> <83mthsk63c.fsf@HIDDEN> Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAgMAAAAqbBEUAAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAADFBMVEVCMDimTFitl4L/ ///CA72vAAAAAWJLR0QDEQxM8gAAAAd0SU1FB+YDDg0mKrsLhn0AAAG5SURBVCjPPZBBa9tAEIWf hFfYe3KCFVIdA4XUv2JS7B5yWhmNIbq11CHVr9gcDMUny0TB9kkpspD2V3bWLh1YmI95896wwNIW J3euAripI5u30rp3IHIWm01b5R7CGj02p+QCznbq8bReuhzQAqtvpYADph0+mAbm6OHRYs1kkHvr O4u4zeih6GUidfNeZYFEw6LG8+Lpc+QqJ60NDhTzRu5BJ0mHSca5BxcMo1+x4aUch87V0csPksmq gmuKUfN9xsueGXCdbj6yUdWThEzrpD5xxYVPVDYp32Ju3VAgRFKWKTs38isCTR8UThOOWyRNH504 1w4Di6QruGhi/QeOwmSvuLll3cJZmxzG6tlU+g7XX7W2yrS7Uk9lMtQ2aOojhaG3Fs+fixb6WlK1 VmZldoXVIAxVYFa7Q2FD+YN7BCbd7fGvlDHlfmX/w+73kC69wPbcyddPAg8vZxnPAhK4R4wApAKk F1kNmgALrxnLiwXSV9/44RwgS2yuMBAHKHpAlY2h8i1jYEpak8BMzZGZV6q2sYDsUJZi9pZCPRGL +wIwIqOrTCBi+mQEYpENIsJEduYkoEKmL/QX+SqirXh/okEAAAAldEVYdGRhdGU6Y3JlYXRlADIw MjItMDMtMTRUMTM6Mzg6NDIrMDA6MDBrKBqBAAAAJXRFWHRkYXRlOm1vZGlmeQAyMDIyLTAzLTE0 VDEzOjM4OjQyKzAwOjAwGnWiPQAAAABJRU5ErkJggg== X-Now-Playing: Little Annie's _Soul Possession_: "Waiting For The Fun" Date: Mon, 14 Mar 2022 14:43:14 +0100 In-Reply-To: <83mthsk63c.fsf@HIDDEN> (Eli Zaretskii's message of "Mon, 14 Mar 2022 15:37:43 +0200") Message-ID: <87sfrkwsy5.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Report: Spam detection software, running on the system "quimby.gnus.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Eli Zaretskii <eliz@HIDDEN> writes: > Is it "C-c to kill Emacs" as in "terminate Emacs with a fatal signal", > or is it "C-x C-c" as in "exit Emacs in an orderly fashion"? > > If the former, then in general killing a program when it is [...] Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 13522 Cc: 13522 <at> debbugs.gnu.org, vincent@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Eli Zaretskii <eliz@HIDDEN> writes: > Is it "C-c to kill Emacs" as in "terminate Emacs with a fatal signal", > or is it "C-x C-c" as in "exit Emacs in an orderly fashion"? > > If the former, then in general killing a program when it is in the > middle of writing files isn't guaranteed to preserve those files. It's the former (sort of). And, yes, we make no guarantees, but the present situation doesn't seem optimal. The user may well hit `C-z' at the prompt and wonder where the file disappeared to. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 14 Mar 2022 13:38:04 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Mar 14 09:38:04 2022 Received: from localhost ([127.0.0.1]:44396 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nTktg-000190-Fr for submit <at> debbugs.gnu.org; Mon, 14 Mar 2022 09:38:04 -0400 Received: from eggs.gnu.org ([209.51.188.92]:37598) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1nTkte-00018U-5e for 13522 <at> debbugs.gnu.org; Mon, 14 Mar 2022 09:38:03 -0400 Received: from [2001:470:142:3::e] (port=48258 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1nTktY-0001kg-KD; Mon, 14 Mar 2022 09:37:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=spHN371Y9lTZXdEYn9FC5Ze8UrgPUMX5vlyfyZIdQdY=; b=myHohBIj9t8M 7tgUiF3znAZzOHPG6xK5aAj/SgLtKwx8YsDRVaeuvpDZp3AjLn9fMl8Nf70yZrwwFWIVQ6WKRUGsG EBc5kdG+wMmJ/bn6WnA6iNo5nUN3cGjx/cfSMdG90jMB2DO2HcG6IT+1YQBoPDypGdNSuuguSK/CH 22btokcrCnyzoea9VrYukO/dKK6OH4pnQxuwr/oHPUnpaxhPjDlFfykH310017fOUQ09IlW290GrK VuPMzb4NsRbA+3hEGGMHla/lE9WpCTDrrrAiKRB7/X8uNkX/L7Fd2q6qbzn+bcffDCdY/TnCoxFl7 3sm/fX0iuMc/GrEKtWskaQ==; Received: from [87.69.77.57] (port=3099 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1nTktY-0004k9-31; Mon, 14 Mar 2022 09:37:56 -0400 Date: Mon, 14 Mar 2022 15:37:43 +0200 Message-Id: <83mthsk63c.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Lars Ingebrigtsen <larsi@HIDDEN> In-Reply-To: <8735jkye2q.fsf@HIDDEN> (message from Lars Ingebrigtsen on Mon, 14 Mar 2022 12:21:33 +0100) Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions References: <87622qaszq.fsf@HIDDEN> <8735jkye2q.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 13522 Cc: 13522 <at> debbugs.gnu.org, vincent@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Lars Ingebrigtsen <larsi@HIDDEN> > Date: Mon, 14 Mar 2022 12:21:33 +0100 > Cc: 13522 <at> debbugs.gnu.org > > Vincent Lefevre <vincent@HIDDEN> writes: > > > 1. Create a file with: printf "\x80" > file > > 2. Open the file under X Window with: emacs -Q file > > 3. Modify the file e.g. by adding a space. > > 4. Type C-x C-s > > At this point, Emacs asks the user to select a coding system. > > 5. Type C-c in the terminal to kill Emacs. > > > > The result is that the file "file" is no longer there! > > (I'm going through old bug reports that unfortunately weren't resolved > at the time.) > > This problem is still present in Emacs 29 -- the file is moved to the > backup file before doing the prompt. Is it "C-c to kill Emacs" as in "terminate Emacs with a fatal signal", or is it "C-x C-c" as in "exit Emacs in an orderly fashion"? If the former, then in general killing a program when it is in the middle of writing files isn't guaranteed to preserve those files.
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 14 Mar 2022 11:21:46 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Mar 14 07:21:46 2022 Received: from localhost ([127.0.0.1]:44245 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nTilm-0003hv-A7 for submit <at> debbugs.gnu.org; Mon, 14 Mar 2022 07:21:46 -0400 Received: from quimby.gnus.org ([95.216.78.240]:41836) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <larsi@HIDDEN>) id 1nTilk-0003hd-0f for 13522 <at> debbugs.gnu.org; Mon, 14 Mar 2022 07:21:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=9dnjG3mXpgo0l9iwRwxSz4lU5tFNUGZfqYgmJnZIUFE=; b=TunGcZzIavSqxcG9bD9gajrTup nt6X5gI5K6aCMZ3rwmqzW5rBTdkRRCS5mzddylFeBesAtiNjOftZEXt795PGutbvb/9hrxWw0s0U9 uEVe5OWT66IKn2bJ/GD4BY+EXUIKbxflewr5ydupK4MBu9jDSaU3BxESQrqm5/5i/43k=; Received: from [84.212.220.105] (helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <larsi@HIDDEN>) id 1nTila-0005rd-Ow; Mon, 14 Mar 2022 12:21:37 +0100 From: Lars Ingebrigtsen <larsi@HIDDEN> To: Vincent Lefevre <vincent@HIDDEN> Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions References: <87622qaszq.fsf@HIDDEN> X-Now-Playing: 23 Skidoo's _The Culling Is Coming_: "Healing (For The Strong)" Date: Mon, 14 Mar 2022 12:21:33 +0100 In-Reply-To: <87622qaszq.fsf@HIDDEN> (Vincent Lefevre's message of "Tue, 22 Jan 2013 02:47:37 +0100") Message-ID: <8735jkye2q.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Report: Spam detection software, running on the system "quimby.gnus.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Vincent Lefevre <vincent@HIDDEN> writes: > 1. Create a file with: printf "\x80" > file > 2. Open the file under X Window with: emacs -Q file > 3. Modify the file e.g. by adding a space. > 4. Type C-x C-s > At this point, Emacs asks the user [...] Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 13522 Cc: 13522 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Vincent Lefevre <vincent@HIDDEN> writes: > 1. Create a file with: printf "\x80" > file > 2. Open the file under X Window with: emacs -Q file > 3. Modify the file e.g. by adding a space. > 4. Type C-x C-s > At this point, Emacs asks the user to select a coding system. > 5. Type C-c in the terminal to kill Emacs. > > The result is that the file "file" is no longer there! (I'm going through old bug reports that unfortunately weren't resolved at the time.) This problem is still present in Emacs 29 -- the file is moved to the backup file before doing the prompt. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
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Full text available.Received: (at 13522) by debbugs.gnu.org; 11 Aug 2014 01:06:51 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Aug 10 21:06:51 2014 Received: from localhost ([127.0.0.1]:38148 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1XGe4Y-0006r4-Jd for submit <at> debbugs.gnu.org; Sun, 10 Aug 2014 21:06:50 -0400 Received: from fencepost.gnu.org ([208.118.235.10]:33447 ident=Debian-exim) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <rgm@HIDDEN>) id 1XGe4V-0006qv-Le for 13522 <at> debbugs.gnu.org; Sun, 10 Aug 2014 21:06:48 -0400 Received: from rgm by fencepost.gnu.org with local (Exim 4.71) (envelope-from <rgm@HIDDEN>) id 1XGe4V-0002fz-2v; Sun, 10 Aug 2014 21:06:47 -0400 From: Glenn Morris <rgm@HIDDEN> To: 13522 <at> debbugs.gnu.org Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions References: <87622qaszq.fsf@HIDDEN> <aqtxq6e36c.fsf@HIDDEN> <20130125000256.GC3397@HIDDEN> <s14ni6axzc.fsf@HIDDEN> <83libhlnpz.fsf@HIDDEN> <y5txq5n0rm.fsf@HIDDEN> <3b8v7byrki.fsf@HIDDEN> <jwv4nhybh3s.fsf-monnier+emacs@HIDDEN> <c6halxg8py.fsf@HIDDEN> X-Spook: Uzbekistan Indigo Aldergrove subversive CDC Attorney X-Ran: aFlt%E+?O)@$$H@g,)3\o5<f<P5%LGKm>Psh.^Q56K8c|Q;!7+\oq5t2/U.,CS}7%A5M_J X-Hue: blue X-Attribution: GM Date: Sun, 10 Aug 2014 21:06:47 -0400 In-Reply-To: <c6halxg8py.fsf@HIDDEN> (Glenn Morris's message of "Thu, 31 Jan 2013 01:36:09 -0500") Message-ID: <3v8umvdec8.fsf@HIDDEN> User-Agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Spam-Score: -5.0 (-----) X-Debbugs-Envelope-To: 13522 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -5.0 (-----) Had to revert this fix - see discussion in http://debbugs.gnu.org/18141 .
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Glenn Morris <rgm@HIDDEN>
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Full text available.Received: (at 13522) by debbugs.gnu.org; 31 Jan 2013 06:36:57 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Jan 31 01:36:57 2013 Received: from localhost ([127.0.0.1]:56674 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1U0nlY-00040K-NE for submit <at> debbugs.gnu.org; Thu, 31 Jan 2013 01:36:56 -0500 Received: from fencepost.gnu.org ([208.118.235.10]:52211) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <rgm@HIDDEN>) id 1U0nlV-00040B-5m for 13522 <at> debbugs.gnu.org; Thu, 31 Jan 2013 01:36:54 -0500 Received: from rgm by fencepost.gnu.org with local (Exim 4.71) (envelope-from <rgm@HIDDEN>) id 1U0nkn-0006Sw-N6; Thu, 31 Jan 2013 01:36:09 -0500 From: Glenn Morris <rgm@HIDDEN> To: Stefan Monnier <monnier@HIDDEN> Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions References: <87622qaszq.fsf@HIDDEN> <aqtxq6e36c.fsf@HIDDEN> <20130125000256.GC3397@HIDDEN> <s14ni6axzc.fsf@HIDDEN> <83libhlnpz.fsf@HIDDEN> <y5txq5n0rm.fsf@HIDDEN> <3b8v7byrki.fsf@HIDDEN> <jwv4nhybh3s.fsf-monnier+emacs@HIDDEN> X-Spook: Bosnia blackjack condor PET analyzer red noise Commecen X-Ran: fe4w8dnluO4;D~Z:VU8LQKlwc+xg6CZ2\z7CY*'+JaY_3`_}Z0BZCBf4aSA,7A^3:+uWIc X-Hue: cyan X-Debbugs-No-Ack: yes X-Attribution: GM Date: Thu, 31 Jan 2013 01:36:09 -0500 In-Reply-To: <jwv4nhybh3s.fsf-monnier+emacs@HIDDEN> (Stefan Monnier's message of "Wed, 30 Jan 2013 14:34:57 -0500") Message-ID: <c6halxg8py.fsf@HIDDEN> User-Agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Spam-Score: -4.7 (----) X-Debbugs-Envelope-To: 13522 Cc: Eli Zaretskii <eliz@HIDDEN>, vincent@HIDDEN, 13522 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -7.4 (-------) Stefan Monnier wrote: > Rather than introduce a new var, we could let bind > coding-system-for-write (and coding-system-require-warning). Sold. Done in trunk.
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Glenn Morris <rgm@HIDDEN>
Subject: Re: bug#13522: 24.2;
save-buffer removes edited file under some conditions
Message-ID: <jwv4nhybh3s.fsf-monnier+emacs@HIDDEN>
References: <87622qaszq.fsf@HIDDEN> <aqtxq6e36c.fsf@HIDDEN>
<20130125000256.GC3397@HIDDEN>
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Date: Wed, 30 Jan 2013 14:34:57 -0500
In-Reply-To: <3b8v7byrki.fsf@HIDDEN> (Glenn Morris's message of
"Wed, 30 Jan 2013 03:59:25 -0500")
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> + (let ((write-region-coding-system writecoding))
> (write-region nil nil
> buffer-file-name nil t buffer-file-truename)
Rather than introduce a new var, we could let bind
coding-system-for-write (and coding-system-require-warning).
Stefan
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
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From: Glenn Morris <rgm@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#13522: 24.2;
save-buffer removes edited file under some conditions
References: <87622qaszq.fsf@HIDDEN> <aqtxq6e36c.fsf@HIDDEN>
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Glenn Morris wrote:
> Maybe the right solution is to have the select-safe-coding-system check
> in basic-save-buffer-2 before backup-buffer, then pass the resulting
> coding system to write-region somehow so it does not need to query
> again.
Very lightly tested patch:
*** lisp/files.el 2013-01-10 15:50:04 +0000
--- lisp/files.el 2013-01-30 08:53:30 +0000
***************
*** 4656,4662 ****
;; This returns a value (MODES EXTENDED-ATTRIBUTES BACKUPNAME), like
;; backup-buffer.
(defun basic-save-buffer-2 ()
! (let (tempsetmodes setmodes)
(if (not (file-writable-p buffer-file-name))
(let ((dir (file-name-directory buffer-file-name)))
(if (not (file-directory-p dir))
--- 4656,4662 ----
;; This returns a value (MODES EXTENDED-ATTRIBUTES BACKUPNAME), like
;; backup-buffer.
(defun basic-save-buffer-2 ()
! (let (tempsetmodes setmodes writecoding)
(if (not (file-writable-p buffer-file-name))
(let ((dir (file-name-directory buffer-file-name)))
(if (not (file-directory-p dir))
***************
*** 4672,4677 ****
--- 4672,4680 ----
buffer-file-name)))
(setq tempsetmodes t)
(error "Attempt to save to a file which you aren't allowed to write"))))))
+ (setq writecoding
+ (choose-write-coding-system nil nil buffer-file-name nil t
+ buffer-file-truename))
(or buffer-backed-up
(setq setmodes (backup-buffer)))
(let* ((dir (file-name-directory buffer-file-name))
***************
*** 4753,4762 ****
(logior (car setmodes) 128))))))
(let (success)
(unwind-protect
- (progn
;; Pass in nil&nil rather than point-min&max to indicate
;; we're saving the buffer rather than just a region.
;; write-region-annotate-functions may make us of it.
(write-region nil nil
buffer-file-name nil t buffer-file-truename)
(setq success t))
--- 4756,4765 ----
(logior (car setmodes) 128))))))
(let (success)
(unwind-protect
;; Pass in nil&nil rather than point-min&max to indicate
;; we're saving the buffer rather than just a region.
;; write-region-annotate-functions may make us of it.
+ (let ((write-region-coding-system writecoding))
(write-region nil nil
buffer-file-name nil t buffer-file-truename)
(setq success t))
=== modified file 'src/fileio.c'
*** src/fileio.c 2013-01-23 20:07:28 +0000
--- src/fileio.c 2013-01-30 08:55:45 +0000
***************
*** 249,254 ****
--- 249,255 ----
static Lisp_Object Qset_file_acl;
static Lisp_Object Qfile_newer_than_file_p;
Lisp_Object Qinsert_file_contents;
+ Lisp_Object Qchoose_write_coding_system;
Lisp_Object Qwrite_region;
static Lisp_Object Qverify_visited_file_modtime;
static Lisp_Object Qset_visited_file_modtime;
***************
*** 4615,4628 ****
/* Decide the coding-system to encode the data with. */
! static Lisp_Object
! choose_write_coding_system (Lisp_Object start, Lisp_Object end, Lisp_Object filename,
! Lisp_Object append, Lisp_Object visit, Lisp_Object lockname,
! struct coding_system *coding)
{
Lisp_Object val;
Lisp_Object eol_parent = Qnil;
if (auto_saving
&& NILP (Fstring_equal (BVAR (current_buffer, filename),
BVAR (current_buffer, auto_save_file_name))))
--- 4616,4637 ----
/* Decide the coding-system to encode the data with. */
! DEFUN ("choose-write-coding-system", Fchoose_write_coding_system,
! Schoose_write_coding_system, 3, 6, 0,
! doc: /* Choose coding system for write.
! Arguments as for `write-region'. */ )
! (Lisp_Object start, Lisp_Object end, Lisp_Object filename,
! Lisp_Object append, Lisp_Object visit, Lisp_Object lockname)
{
Lisp_Object val;
Lisp_Object eol_parent = Qnil;
+ if (NILP (start))
+ {
+ XSETFASTINT (start, BEGV);
+ XSETFASTINT (end, ZV);
+ }
+
if (auto_saving
&& NILP (Fstring_equal (BVAR (current_buffer, filename),
BVAR (current_buffer, auto_save_file_name))))
***************
*** 4715,4724 ****
}
val = coding_inherit_eol_type (val, eol_parent);
- setup_coding_system (val, coding);
-
- if (!STRINGP (start) && !NILP (BVAR (current_buffer, selective_display)))
- coding->mode |= CODING_MODE_SELECTIVE_DISPLAY;
return val;
}
--- 4724,4729 ----
***************
*** 4874,4882 ****
We used to make this choice before calling build_annotations, but that
leads to problems when a write-annotate-function takes care of
unsavable chars (as was the case with X-Symbol). */
! Vlast_coding_system_used
! = choose_write_coding_system (start, end, filename,
! append, visit, lockname, &coding);
#ifdef CLASH_DETECTION
if (!auto_saving)
--- 4879,4893 ----
We used to make this choice before calling build_annotations, but that
leads to problems when a write-annotate-function takes care of
unsavable chars (as was the case with X-Symbol). */
! Vlast_coding_system_used = NILP (Vwrite_region_coding_system) ?
! Fchoose_write_coding_system (start, end, filename,
! append, visit, lockname) :
! Vwrite_region_coding_system;
!
! setup_coding_system (Vlast_coding_system_used, &coding);
!
! if (!STRINGP (start) && !NILP (BVAR (current_buffer, selective_display)))
! coding.mode |= CODING_MODE_SELECTIVE_DISPLAY;
#ifdef CLASH_DETECTION
if (!auto_saving)
***************
*** 5861,5866 ****
--- 5872,5878 ----
DEFSYM (Qset_file_acl, "set-file-acl");
DEFSYM (Qfile_newer_than_file_p, "file-newer-than-file-p");
DEFSYM (Qinsert_file_contents, "insert-file-contents");
+ DEFSYM (Qchoose_write_coding_system, "choose-write-coding-system");
DEFSYM (Qwrite_region, "write-region");
DEFSYM (Qverify_visited_file_modtime, "verify-visited-file-modtime");
DEFSYM (Qset_visited_file_modtime, "set-visited-file-modtime");
***************
*** 5890,5895 ****
--- 5902,5912 ----
of file names regardless of the current language environment. */);
Vdefault_file_name_coding_system = Qnil;
+ DEFVAR_LISP ("write-region-coding-system", Vwrite_region_coding_system,
+ doc: /* If non-nil, coding system for `write-region'.
+ You should only ever `let'-bind this around a `write-region' call. */);
+ Vwrite_region_coding_system = Qnil;
+
DEFSYM (Qformat_decode, "format-decode");
DEFSYM (Qformat_annotate_function, "format-annotate-function");
DEFSYM (Qafter_insert_file_set_coding, "after-insert-file-set-coding");
***************
*** 6085,6090 ****
--- 6102,6108 ----
defsubr (&Sdefault_file_modes);
defsubr (&Sfile_newer_than_file_p);
defsubr (&Sinsert_file_contents);
+ defsubr (&Schoose_write_coding_system);
defsubr (&Swrite_region);
defsubr (&Scar_less_than_car);
defsubr (&Sverify_visited_file_modtime);
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
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From: Glenn Morris <rgm@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#13522: 24.2;
save-buffer removes edited file under some conditions
References: <87622qaszq.fsf@HIDDEN> <aqtxq6e36c.fsf@HIDDEN>
<20130125000256.GC3397@HIDDEN>
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Eli Zaretskii wrote:
> I can't. Moreover, the recipe says "Type C-c in the terminal to kill
> Emacs", but C-c does not kill Emacs, only C-x C-c does.
C-c *in the shell* from which Emacs was started in the foreground, not
from in Emacs; ie interrupt it from outside.
Or even: do C-x C-s, and leave the coding prompt unanswered. You will
find the original file missing until you answer, or quit, the coding
question!
Looks like it has been this way since the unicode merge.
basic-save-buffer-2 calls backup-buffer, which may rename the original
file. It then calls write-region. This may call
select-safe-coding-system, so there can be an arbitrarily long interval
between the original file being renamed to the backup, and the new file
being written.
If you interrupt the coding prompt with C-g, the unwind-protect in
basic-save-buffer-2 puts back the original file. I suppose the problem
could maybe be papered over by adding something equivalent to
kill-emacs-hook, but it's still very far from ideal.
Maybe the right solution is to have the select-safe-coding-system check
in basic-save-buffer-2 before backup-buffer, then pass the resulting
coding system to write-region somehow so it does not need to query
again.
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 25 Jan 2013 07:35:11 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Jan 25 02:35:11 2013 Received: from localhost ([127.0.0.1]:48464 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1Tydoc-0007FJ-N2 for submit <at> debbugs.gnu.org; Fri, 25 Jan 2013 02:35:11 -0500 Received: from mtaout21.012.net.il ([80.179.55.169]:34336) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <eliz@HIDDEN>) id 1TydoY-0007F7-JH for 13522 <at> debbugs.gnu.org; Fri, 25 Jan 2013 02:35:08 -0500 Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0MH600L007OGFW00@HIDDEN> for 13522 <at> debbugs.gnu.org; Fri, 25 Jan 2013 09:34:57 +0200 (IST) Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MH600LLV7Q9AF70@HIDDEN>; Fri, 25 Jan 2013 09:34:57 +0200 (IST) Date: Fri, 25 Jan 2013 09:35:04 +0200 From: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions In-reply-to: <s14ni6axzc.fsf@HIDDEN> X-012-Sender: halo1@HIDDEN To: Glenn Morris <rgm@HIDDEN> Message-id: <83libhlnpz.fsf@HIDDEN> References: <87622qaszq.fsf@HIDDEN> <aqtxq6e36c.fsf@HIDDEN> <20130125000256.GC3397@HIDDEN> <s14ni6axzc.fsf@HIDDEN> X-Spam-Score: 0.7 (/) X-Debbugs-Envelope-To: 13522 Cc: 13522 <at> debbugs.gnu.org, vincent@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list Reply-To: Eli Zaretskii <eliz@HIDDEN> List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -1.2 (-) > From: Glenn Morris <rgm@HIDDEN> > Date: Thu, 24 Jan 2013 19:48:55 -0500 > Cc: 13522 <at> debbugs.gnu.org > > Vincent Lefevre wrote: > > >> I can't reproduce this with 24.2. > > I was using a file in /tmp I wasn't. > Using a file in $HOME I can reproduce it. I can't. Moreover, the recipe says "Type C-c in the terminal to kill Emacs", but C-c does not kill Emacs, only C-x C-c does. And if I type C-x C-c, I am asked whether to exit without saving etc. This doesn't seem to be the described scenario at all. What am I missing?
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Glenn Morris <rgm@HIDDEN>
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From: Glenn Morris <rgm@HIDDEN>
To: Vincent Lefevre <vincent@HIDDEN>
Subject: Re: bug#13522: 24.2;
save-buffer removes edited file under some conditions
References: <87622qaszq.fsf@HIDDEN> <aqtxq6e36c.fsf@HIDDEN>
<20130125000256.GC3397@HIDDEN>
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Vincent Lefevre wrote:
>> I can't reproduce this with 24.2.
I was using a file in /tmp, and apparently Emacs does not make backups
of files in /tmp (normal-backup-enable-predicate; not sure that seems
useful behaviour to me). Using a file in $HOME I can reproduce it.
>> Here I have both "file" and "#file", no "file~".
>
> I have "file~" and "#file#" (with 2 # characters).
(The "#" was just a typo on my part.)
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 25 Jan 2013 00:03:06 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Jan 24 19:03:06 2013 Received: from localhost ([127.0.0.1]:48286 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1TyWl8-0003Ph-E3 for submit <at> debbugs.gnu.org; Thu, 24 Jan 2013 19:03:06 -0500 Received: from vinc17.pck.nerim.net ([213.41.242.187]:56091 helo=smtp-xvii.vinc17.net) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <vincent@HIDDEN>) id 1TyWl5-0003PY-3u for 13522 <at> debbugs.gnu.org; Thu, 24 Jan 2013 19:03:04 -0500 Received: by xvii.vinc17.org (Postfix, from userid 1000) id 66445314021; Fri, 25 Jan 2013 01:02:56 +0100 (CET) Date: Fri, 25 Jan 2013 01:02:56 +0100 From: Vincent Lefevre <vincent@HIDDEN> To: Glenn Morris <rgm@HIDDEN> Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions Message-ID: <20130125000256.GC3397@HIDDEN> References: <87622qaszq.fsf@HIDDEN> <aqtxq6e36c.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <aqtxq6e36c.fsf@HIDDEN> X-Mailer-Info: http://www.vinc17.net/mutt/ User-Agent: Mutt/1.5.21-6294-vl-r57845 (2013-01-23) Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.8 (/) X-Debbugs-Envelope-To: 13522 Cc: 13522 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -0.0 (/) On 2013-01-24 15:28:27 -0500, Glenn Morris wrote: > Vincent Lefevre wrote: > > 1. Create a file with: printf "\x80" > file > > 2. Open the file under X Window with: emacs -Q file > > 3. Modify the file e.g. by adding a space. > > 4. Type C-x C-s > > At this point, Emacs asks the user to select a coding system. > > 5. Type C-c in the terminal to kill Emacs. > > > > The result is that the file "file" is no longer there! Same problem with the official GNU Emacs 24.2.1 (not Debian's). > I can't reproduce this with 24.2. > Here I have both "file" and "#file", no "file~". I have "file~" and "#file#" (with 2 # characters). --=20 Vincent Lef=E8vre <vincent@HIDDEN> - Web: <http://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at 13522) by debbugs.gnu.org; 24 Jan 2013 20:28:45 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Jan 24 15:28:44 2013 Received: from localhost ([127.0.0.1]:48181 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1TyTPb-0004zn-Pz for submit <at> debbugs.gnu.org; Thu, 24 Jan 2013 15:28:44 -0500 Received: from fencepost.gnu.org ([208.118.235.10]:57321) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <rgm@HIDDEN>) id 1TyTPV-0004zZ-4i for 13522 <at> debbugs.gnu.org; Thu, 24 Jan 2013 15:28:38 -0500 Received: from rgm by fencepost.gnu.org with local (Exim 4.71) (envelope-from <rgm@HIDDEN>) id 1TyTPP-0006VX-8E; Thu, 24 Jan 2013 15:28:27 -0500 From: Glenn Morris <rgm@HIDDEN> To: Vincent Lefevre <vincent@HIDDEN> Subject: Re: bug#13522: 24.2; save-buffer removes edited file under some conditions References: <87622qaszq.fsf@HIDDEN> X-Spook: investigation analyzer cybercash asset mindwar Europol X-Ran: sdX?s_wKZ]@'^pgWoP)m&umipi-Laqa&ezGj8K%O\'*Tp7p&rEjgq)HkpmEfhh:1pHf^DP X-Hue: blue X-Attribution: GM Date: Thu, 24 Jan 2013 15:28:27 -0500 In-Reply-To: <87622qaszq.fsf@HIDDEN> (Vincent Lefevre's message of "Tue, 22 Jan 2013 02:47:37 +0100") Message-ID: <aqtxq6e36c.fsf@HIDDEN> User-Agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Spam-Score: -4.2 (----) X-Debbugs-Envelope-To: 13522 Cc: 13522 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -6.9 (------) Vincent Lefevre wrote: > 1. Create a file with: printf "\x80" > file > 2. Open the file under X Window with: emacs -Q file > 3. Modify the file e.g. by adding a space. > 4. Type C-x C-s > At this point, Emacs asks the user to select a coding system. > 5. Type C-c in the terminal to kill Emacs. > > The result is that the file "file" is no longer there! I can't reproduce this with 24.2. Here I have both "file" and "#file", no "file~". > Actually there is a backup. Here it is easy to see (file~), but
bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.Received: (at submit) by debbugs.gnu.org; 22 Jan 2013 01:48:57 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Jan 21 20:48:57 2013 Received: from localhost ([127.0.0.1]:43798 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1TxSyu-0005q5-Qq for submit <at> debbugs.gnu.org; Mon, 21 Jan 2013 20:48:57 -0500 Received: from eggs.gnu.org ([208.118.235.92]:59390) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from <vincent@HIDDEN>) id 1TxSys-0005px-Cu for submit <at> debbugs.gnu.org; Mon, 21 Jan 2013 20:48:55 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <vincent@HIDDEN>) id 1TxSxm-0000bV-A4 for submit <at> debbugs.gnu.org; Mon, 21 Jan 2013 20:47:47 -0500 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-101.9 required=5.0 tests=BAYES_00, USER_IN_WHITELIST autolearn=unavailable version=3.3.2 Received: from lists.gnu.org ([208.118.235.17]:36604) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <vincent@HIDDEN>) id 1TxSxm-0000bP-6l for submit <at> debbugs.gnu.org; Mon, 21 Jan 2013 20:47:46 -0500 Received: from eggs.gnu.org ([208.118.235.92]:42513) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <vincent@HIDDEN>) id 1TxSxk-0001oM-JR for bug-gnu-emacs@HIDDEN; Mon, 21 Jan 2013 20:47:46 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <vincent@HIDDEN>) id 1TxSxi-0000a6-O5 for bug-gnu-emacs@HIDDEN; Mon, 21 Jan 2013 20:47:44 -0500 Received: from vinc17.pck.nerim.net ([213.41.242.187]:56968 helo=smtp-xvii.vinc17.net) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <vincent@HIDDEN>) id 1TxSxi-0000Zj-5h for bug-gnu-emacs@HIDDEN; Mon, 21 Jan 2013 20:47:42 -0500 Received: by xvii.vinc17.org (Postfix, from userid 1000) id B41F231001E; Tue, 22 Jan 2013 02:47:37 +0100 (CET) From: Vincent Lefevre <vincent@HIDDEN> To: bug-gnu-emacs@HIDDEN Subject: 24.2; save-buffer removes edited file under some conditions Date: Tue, 22 Jan 2013 02:47:37 +0100 Message-ID: <87622qaszq.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 208.118.235.17 X-Spam-Score: -6.9 (------) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -6.9 (------) 1. Create a file with: printf "\x80" > file 2. Open the file under X Window with: emacs -Q file 3. Modify the file e.g. by adding a space. 4. Type C-x C-s At this point, Emacs asks the user to select a coding system. 5. Type C-c in the terminal to kill Emacs. The result is that the file "file" is no longer there! Actually there is a backup. Here it is easy to see (file~), but if the user has defined find-backup-file-name, he may not be aware that there is a backup (as this is not the normal use of backups since the file hasn't been saved) and may think that the file has been lost (it took me some time to find out...). I think that Emacs makes the backup too soon. It should do it only just before saving. This might be a variant of the old bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=194171 In GNU Emacs 24.2.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.10) of 2012-09-11 on xvii, modified by Debian Windowing system distributor `The X.Org Foundation', version 11.0.11204000 Configured using: `configure '--build' 'x86_64-linux-gnu' '--build' 'x86_64-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.2/site-lisp:/usr/share/emacs/site-lisp' '--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-D_FORTIFY_SOURCE=2'' Important settings: value of $LC_ALL: nil value of $LC_COLLATE: POSIX value of $LC_CTYPE: en_US.UTF-8 value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: en_DK value of $LANG: POSIX value of $XMODIFIERS: nil locale-coding-system: utf-8-unix default enable-multibyte-characters: t Major mode: Fundamental Minor modes in effect: tooltip-mode: t mouse-wheel-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: <help-echo> <escape> x r e p o r t - b u <tab> <re turn> Recent messages: Loading /etc/emacs/site-start.d/50html-helper-mode.el (source)...done Loading /etc/emacs/site-start.d/50latex-cjk-common.el (source)... Loading cjk-enc...done Loading /etc/emacs/site-start.d/50latex-cjk-common.el (source)...done Loading /etc/emacs/site-start.d/50latex-cjk-thai.el (source)...done Loading /etc/emacs/site-start.d/50psvn.el (source)...done Loading /etc/emacs/site-start.d/50rnc-mode.el (source)...done Loading /etc/emacs/site-start.d/50thailatex.el (source)...done Loading /etc/emacs/site-start.d/50w3m-el.el (source)...done For information about GNU Emacs and the GNU system, type C-h C-a. Load-path shadows: /usr/share/emacs24/site-lisp/css-mode/css-mode hides /usr/share/emacs/site-lisp/css-mode/css-mode /usr/share/emacs/24.2/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup /usr/share/emacs/site-lisp/autoconf/autotest-mode hides /usr/share/emacs/site-lisp/autotest-mode /usr/share/emacs/24.2/site-lisp/cmake-data/cmake-mode hides /usr/share/emacs/site-lisp/cmake-mode /usr/share/emacs24/site-lisp/html-helper-mode/tempo hides /usr/share/emacs/24.2/lisp/tempo /usr/share/emacs24/site-lisp/flim/hex-util hides /usr/share/emacs/24.2/lisp/hex-util /usr/share/emacs24/site-lisp/flim/md4 hides /usr/share/emacs/24.2/lisp/md4 /usr/share/emacs24/site-lisp/dictionaries-common/flyspell hides /usr/share/emacs/24.2/lisp/textmodes/flyspell /usr/share/emacs24/site-lisp/dictionaries-common/ispell hides /usr/share/emacs/24.2/lisp/textmodes/ispell /usr/share/emacs24/site-lisp/css-mode/css-mode hides /usr/share/emacs/24.2/lisp/textmodes/css-mode /usr/share/emacs24/site-lisp/flim/hmac-md5 hides /usr/share/emacs/24.2/lisp/net/hmac-md5 /usr/share/emacs24/site-lisp/flim/sasl-ntlm hides /usr/share/emacs/24.2/lisp/net/sasl-ntlm /usr/share/emacs24/site-lisp/flim/sasl-cram hides /usr/share/emacs/24.2/lisp/net/sasl-cram /usr/share/emacs24/site-lisp/flim/ntlm hides /usr/share/emacs/24.2/lisp/net/ntlm /usr/share/emacs24/site-lisp/flim/sasl hides /usr/share/emacs/24.2/lisp/net/sasl /usr/share/emacs24/site-lisp/flim/hmac-def hides /usr/share/emacs/24.2/lisp/net/hmac-def /usr/share/emacs24/site-lisp/flim/sasl-digest hides /usr/share/emacs/24.2/lisp/net/sasl-digest /usr/share/emacs24/site-lisp/latex-cjk-thai/thai-word hides /usr/share/emacs/24.2/lisp/language/thai-word /usr/share/emacs24/site-lisp/html-helper-mode/html-helper-mode hides /usr/share/emacs/site-lisp/html-helper-mode/html-helper-mode /usr/share/emacs24/site-lisp/html-helper-mode/hhm-config hides /usr/share/emacs/site-lisp/html-helper-mode/hhm-config /usr/share/emacs24/site-lisp/html-helper-mode/tempo hides /usr/share/emacs/site-lisp/html-helper-mode/tempo /usr/share/emacs24/site-lisp/html-helper-mode/visual-basic-mode hides /usr/share/emacs/site-lisp/html-helper-mode/visual-basic-mode Features: (shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail regexp-opt rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils w3m-load jabber-autoloads time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image fringe lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces cus-face files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dbusbind dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)
Vincent Lefevre <vincent@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#13522; Package emacs.
Full text available.
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