GNU bug report logs - #55767
29.0.50; tramp converts buffer of remote OSX file to utf-8-mac after save

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Package: emacs;

Reported by: Jake Nelson <jake.nelson <at> gmail.com>

Date: Thu, 2 Jun 2022 16:10:01 UTC

Severity: normal

Tags: moreinfo

Found in version 29.0.50

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#55767; Package emacs. (Thu, 02 Jun 2022 16:10:01 GMT) Full text and rfc822 format available.

Acknowledgement sent to Jake Nelson <jake.nelson <at> gmail.com>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Thu, 02 Jun 2022 16:10:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Jake Nelson <jake.nelson <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.50;
 tramp converts buffer of remote OSX file to utf-8-mac after save
Date: Thu, 2 Jun 2022 12:02:18 -0400
[Message part 1 (text/plain, inline)]
1. Visit remote file on an OSX system using /scp:hostname:/path/to/file
2. Modify buffer
3. Save
4. Note buffer-file-coding-system has updated to utf-8-mac (and (Mac) now
listed
in modeline).
5. Modify and Save again and the file line endings will be converted to
carriage returns.

I used git bisect to find commit
47fe7a5983a97c3e806e90340f3cd6ab3f0c49b2 introduced this behavior. Prior
to 47fe7a59 emacs would not modify the line endings of the file.   I
believe utf-8-mac is only for Mac Classic files.

In GNU Emacs 29.0.50 (build 12, x86_64-pc-linux-gnu, X toolkit, cairo
version 1.16.0, Xaw3d scroll bars)
of 2022-06-02 built on hostname
Repository revision: 47fe7a5983a97c3e806e90340f3cd6ab3f0c49b2
Repository branch: HEAD
Windowing system distributor 'The X.Org Foundation', version 11.0.12101003
System Description: Ubuntu 22.04 LTS

Configured using:
'configure --with-x-toolkit=lucid --without-native-compilation'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS
X11 XAW3D XDBE XIM XPM LUCID ZLIB

Important settings:
value of $LANG: en_US.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix

Major mode: ELisp/d

Minor modes in effect:
tooltip-mode: t
global-eldoc-mode: t
eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
line-number-mode: t
indent-tabs-mode: t
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message mailcap yank-media rmc puny
dired dired-loaddefs rfc822 mml mml-sec epa derived epg rfc6068
epg-config gnus-util text-property-search time-date mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader smtpmail
auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs
password-cache json map sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils misearch multi-isearch vc-git diff-mode easy-mmode
vc-dispatcher cl-loaddefs cl-lib seq gv subr-x byte-opt bytecomp
byte-compile cconv iso-transl tooltip eldoc paren electric uniquify
ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode lisp-mode prog-mode register
page tab-bar menu-bar rfn-eshadow isearch easymenu timer select
scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors
frame minibuffer nadvice simple cl-generic cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms
cp51932 hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese composite emoji-zwj charscript charprop case-table
epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button
loaddefs faces cus-face macroexp files window text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads dbusbind inotify lcms2
dynamic-setting system-font-setting font-render-setting cairo x-toolkit
x multi-tty make-network-process emacs)

Memory information:
((conses 16 55245 10587)
(symbols 48 7079 1)
(strings 32 21097 1688)
(string-bytes 1 665408)
(vectors 16 14212)
(vector-slots 8 196342 11371)
(floats 8 25 55)
(intervals 56 250 9)
(buffers 992 12))
[Message part 2 (text/html, inline)]

Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#55767; Package emacs. (Wed, 08 Jun 2022 11:10:02 GMT) Full text and rfc822 format available.

Message #8 received at 55767 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Jake Nelson <jake.nelson <at> gmail.com>
Cc: 55767 <at> debbugs.gnu.org
Subject: Re: bug#55767: 29.0.50; tramp converts buffer of remote OSX file to
 utf-8-mac after save
Date: Wed, 08 Jun 2022 13:09:32 +0200
Jake Nelson <jake.nelson <at> gmail.com> writes:

Hi Jake,

> 1. Visit remote file on an OSX system using
> /scp:hostname:/path/to/file
> 2. Modify buffer
> 3. Save
> 4. Note buffer-file-coding-system has updated to utf-8-mac (and (Mac)
> now listed
> in modeline).
> 5. Modify and Save again and the file line endings will be converted
> to
> carriage returns.

Well, I don't use macOS myself, neither locally nor on a remote
machine. So I hope you can help me to puzzle this out.

> I used git bisect to find commit
> 47fe7a5983a97c3e806e90340f3cd6ab3f0c49b2 introduced this behavior.
> Prior
> to 47fe7a59 emacs would not modify the line endings of the file.   I
> believe utf-8-mac is only for Mac Classic files.

Well, IIRC, 47fe7a59 was just a refactoring of code. It introduced the
new macro tramp-skeleton-write-region in order to simplify Tramp's
different write-region implementations.

Hmm, you are speaking about "Mac Classic files". How could Tramp
determine, whether a remote machine uses this? These days, Tramp calls
"uname -sr". If the result string contains "Darwin", Tramp assumes macOS
on the remote side. Is there something else Tramp shall distinguish for
remote macOS'es?

Best regards, Michael.




Added tag(s) moreinfo. Request was from Stefan Kangas <stefan <at> marxist.se> to control <at> debbugs.gnu.org. (Tue, 28 Jun 2022 21:21:02 GMT) Full text and rfc822 format available.

Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#55767; Package emacs. (Sat, 02 Jul 2022 15:12:02 GMT) Full text and rfc822 format available.

Message #13 received at 55767 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Jake Nelson <jake.nelson <at> gmail.com>
Cc: 55767 <at> debbugs.gnu.org
Subject: Re: bug#55767: 29.0.50; tramp converts buffer of remote OSX file to
 utf-8-mac after save
Date: Sat, 02 Jul 2022 17:11:23 +0200
Michael Albinus <michael.albinus <at> gmx.de> writes:

Hi Jake,

> Hmm, you are speaking about "Mac Classic files". How could Tramp
> determine, whether a remote machine uses this? These days, Tramp calls
> "uname -sr". If the result string contains "Darwin", Tramp assumes macOS
> on the remote side. Is there something else Tramp shall distinguish for
> remote macOS'es?

Ping.

Could you pls provide the information? Otherwise, I don't know what I
could do.

Best regards, Michael.




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#55767; Package emacs. (Tue, 02 Aug 2022 11:11:01 GMT) Full text and rfc822 format available.

Message #16 received at 55767 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: Jake Nelson <jake.nelson <at> gmail.com>, 55767 <at> debbugs.gnu.org
Subject: Re: bug#55767: 29.0.50; tramp converts buffer of remote OSX file to
 utf-8-mac after save
Date: Tue, 02 Aug 2022 13:10:15 +0200
Michael Albinus <michael.albinus <at> gmx.de> writes:

>> Hmm, you are speaking about "Mac Classic files". How could Tramp
>> determine, whether a remote machine uses this? These days, Tramp calls
>> "uname -sr". If the result string contains "Darwin", Tramp assumes macOS
>> on the remote side. Is there something else Tramp shall distinguish for
>> remote macOS'es?
>
> Ping.
>
> Could you pls provide the information? Otherwise, I don't know what I
> could do.

More information was requested, but no response was given within a
month, so I'm closing this bug report.  If progress can be made, please
respond to this email and we'll reopen the bug report.





bug closed, send any further explanations to 55767 <at> debbugs.gnu.org and Jake Nelson <jake.nelson <at> gmail.com> Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Tue, 02 Aug 2022 11:11:02 GMT) Full text and rfc822 format available.

Did not alter fixed versions and reopened. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Tue, 02 Aug 2022 13:42:02 GMT) Full text and rfc822 format available.

bug closed, send any further explanations to 55767 <at> debbugs.gnu.org and Jake Nelson <jake.nelson <at> gmail.com> Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Wed, 31 Aug 2022 10:19:01 GMT) Full text and rfc822 format available.

bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Wed, 28 Sep 2022 11:24:07 GMT) Full text and rfc822 format available.

This bug report was last modified 1 year and 182 days ago.

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