From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Vincent Lefevre Newsgroups: gmane.emacs.bugs Subject: bug#13522: 24.2; save-buffer removes edited file under some conditions Date: Tue, 22 Jan 2013 02:47:37 +0100 Message-ID: <87622qaszq.fsf@xvii.vinc17.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1358819280 27714 80.91.229.3 (22 Jan 2013 01:48:00 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 22 Jan 2013 01:48:00 +0000 (UTC) To: 13522@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Jan 22 02:48:19 2013 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1TxSyJ-0002OV-A6 for geb-bug-gnu-emacs@m.gmane.org; Tue, 22 Jan 2013 02:48:19 +0100 Original-Received: from localhost ([::1]:55263 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TxSy2-0001zi-09 for geb-bug-gnu-emacs@m.gmane.org; Mon, 21 Jan 2013 20:48:02 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:42562) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TxSxy-0001zZ-Ky for bug-gnu-emacs@gnu.org; Mon, 21 Jan 2013 20:48:00 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TxSxw-0000ch-2v for bug-gnu-emacs@gnu.org; Mon, 21 Jan 2013 20:47:58 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:38334) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TxSxv-0000ca-Vl for bug-gnu-emacs@gnu.org; Mon, 21 Jan 2013 20:47:56 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1TxSz0-0005qR-6k for bug-gnu-emacs@gnu.org; Mon, 21 Jan 2013 20:49:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Vincent Lefevre Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 22 Jan 2013 01:49:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 13522 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.135881933722454 (code B ref -1); Tue, 22 Jan 2013 01:49:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 22 Jan 2013 01:48:57 +0000 Original-Received: from localhost ([127.0.0.1]:43798 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TxSyu-0005q5-Qq for submit@debbugs.gnu.org; Mon, 21 Jan 2013 20:48:57 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:59390) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TxSys-0005px-Cu for submit@debbugs.gnu.org; Mon, 21 Jan 2013 20:48:55 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TxSxm-0000bV-A4 for submit@debbugs.gnu.org; Mon, 21 Jan 2013 20:47:47 -0500 Original-Received: from lists.gnu.org ([208.118.235.17]:36604) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TxSxm-0000bP-6l for submit@debbugs.gnu.org; Mon, 21 Jan 2013 20:47:46 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:42513) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TxSxk-0001oM-JR for bug-gnu-emacs@gnu.org; Mon, 21 Jan 2013 20:47:46 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TxSxi-0000a6-O5 for bug-gnu-emacs@gnu.org; Mon, 21 Jan 2013 20:47:44 -0500 Original-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 ) id 1TxSxi-0000Zj-5h for bug-gnu-emacs@gnu.org; Mon, 21 Jan 2013 20:47:42 -0500 Original-Received: by xvii.vinc17.org (Postfix, from userid 1000) id B41F231001E; Tue, 22 Jan 2013 02:47:37 +0100 (CET) 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-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:70147 Archived-At: 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: x r e p o r t - b u 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)