GNU bug report logs - #15535
24.3.50; basic-save-buffer should update buffer-file-coding-system value if the contents were written using different coding system

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#15535: closed (24.3.50; basic-save-buffer should update
 buffer-file-coding-system value if the contents were written using
 different coding system)
Date: Sun, 13 Oct 2013 20:44:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Sun, 13 Oct 2013 23:43:29 +0300
with message-id <525B05F1.2030006 <at> yandex.ru>
and subject line Re: bug#15535: Acknowledgement (24.3.50;	basic-save-buffer should update buffer-file-coding-system value	if	the contents were written using different coding system)
has caused the debbugs.gnu.org bug report #15535,
regarding 24.3.50; basic-save-buffer should update buffer-file-coding-system value if the contents were written using different coding system
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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15535: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15535
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From: Dmitry Gutov <dgutov <at> yandex.ru>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50;
 basic-save-buffer should update buffer-file-coding-system value if
 the contents were written using different coding system
Date: Sun, 06 Oct 2013 01:44:09 +0300

Otherwise it's hard to find out which coding system was used, after all.

See here why it's useful:
http://lists.gnu.org/archive/html/emacs-devel/2013-10/msg00129.html

The following test passes in Emacs 24.3 but fails on trunk:

(ert-deftest save-buffer-updates-buffer-file-coding-system ()
  (let ((file (expand-file-name "foo" temporary-file-directory))
        (default-buffer-file-coding-system 'utf-8-unix))
    (unwind-protect
        (with-temp-buffer
          (insert "abcdef\n")
          (write-file file))
      (with-current-buffer (find-file-noselect file)
        (should (eq 'undecided (coding-system-change-eol-conversion
                                buffer-file-coding-system nil)))
        (insert "водка матрёшка селёдка")
        (save-buffer)
        ;; Fails here:
        (should (eq 'utf-8-unix buffer-file-coding-system)))
      (delete-file file))))

In GNU Emacs 24.3.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.6.4)
 of 2013-10-04 on axl
Bzr revision: 114513 eggert <at> cs.ucla.edu-20131003161631-vox3mdtalfjg13ed
Windowing system distributor `The X.Org Foundation', version 11.0.11303000
System Description:	Ubuntu 13.04

[Message part 3 (message/rfc822, inline)]

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: Eli Zaretskii <eliz <at> gnu.org>, Kenichi Handa <handa <at> gnu.org>
Cc: 15535-done <at> debbugs.gnu.org
Subject: Re: bug#15535: Acknowledgement (24.3.50;	basic-save-buffer should
 update buffer-file-coding-system value	if	the contents were written using
 different coding system)
Date: Sun, 13 Oct 2013 23:43:29 +0300

Version: 24.4

Fixed for me too, thanks.

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