GNU bug report logs - #28139
25.2; TRAMP vs bash 4.4 / readline 7.0 "bracketed paste" mode

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Daniel Pittman <slippycheeze <at> google.com>
Subject: bug#28139: closed (Re: bug#28139: 25.2; TRAMP vs bash 4.4 /
 readline 7.0 "bracketed paste" mode)
Date: Tue, 14 Nov 2017 10:45:03 +0000

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Your bug report

#28139: 25.2; TRAMP vs bash 4.4 / readline 7.0 "bracketed paste" mode

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 28139 <at> debbugs.gnu.org.

-- 
28139: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=28139
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Michael Albinus <michael.albinus <at> gmx.de>
To: Daniel Pittman <slippycheeze <at> google.com>
Cc: 28139-done <at> debbugs.gnu.org
Subject: Re: bug#28139: 25.2;
 TRAMP vs bash 4.4 / readline 7.0 "bracketed paste" mode
Date: Tue, 14 Nov 2017 11:44:18 +0100

Version: 26.1

Daniel Pittman <slippycheeze <at> google.com> writes:

Hi Daniel,

> Hopefully this meets with approval, so I append both the patch, and
> what I think is the appropriate changelog entry for this, to be
> manually added:

Thanks, it looks good. I have applied it to the emacs-26 branch, with
some minor cosmetic changes.

Closing the bug.

Best regards, Michael.

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From: Daniel Pittman <slippycheeze <at> google.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.2; TRAMP vs bash 4.4 / readline 7.0 "bracketed paste" mode
Date: Fri, 18 Aug 2017 11:22:29 -0400

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After upgrading a remote system to a version of GNU/Linux that includes bash
4.4 (from Debian/testing), with the readline option `set
enable-bracketed-paste on` in /etc/inputrc, and no personal inputrc,
tramp breaks.

The exact version of `/bin/sh --version` is:
GNU bash, version 4.4.12(1)-release (x86_64-pc-linux-gnu)

Specifically, it breaks because bash emits "enable bracketed paste" and
"disable bracketed paste" CSI control sequences to the terminal around the
shell prompt.

That results in TRAMP trying to read `<ESC> [ 2 0 0 4 h "..."` as a Lisp
expression, when reading the remote `uname -sr` output, which doesn't work.

Passing the `--noediting` option to the remote shell command resolves the
problem, by disabling readline entirely, but it should also be possible to
augment the `tramp-open-connection-setup-interactive-shell` to issue,
unconditionally, the command:

    bind 'set enable-bracketed-paste off'

That will fail on some variants of /bin/sh (dash, posh, tested, but non-GNU
systems may also show this.)

Ignoring the failure should be harmless, however, both when this is not a
valid internal command, and when it is not known to the bash /
readline version.


In GNU Emacs 25.2.1 (x86_64-apple-darwin16.7.0, NS appkit-1504.83 Version
10.12.6 (Build 16G29))
 of 2017-08-08 built on slippycheeze-macbookpro.roam
Windowing system distributor 'Apple', version 10.3.1504
Configured using:
 'configure --disable-dependency-tracking --disable-silent-rules
 --enable-locallisppath=/Users/slippycheeze/homebrew/share/emacs/site-lisp
 --infodir=/Users/slippycheeze/homebrew/Cellar/emacs-edge/25.2/share/info/emacs
 --prefix=/Users/slippycheeze/homebrew/Cellar/emacs-edge/25.2 --with-modules
 --with-rsvg --with-xml2 --without-pop --disable-ns-self-contained --with-ns
 --without-x --without-dbus --with-gnutls'

Configured features:
JPEG RSVG NOTIFY ACL GNUTLS LIBXML2 ZLIB TOOLKIT_SCROLL_BARS NS MODULES

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Emacs-Lisp

Minor modes in effect:
  diff-hl-flydiff-mode: t
  diff-hl-mode: t
  diff-auto-refine-mode: t
  highlight-parentheses-mode: t
  flyspell-mode: t
  ws-butler-mode: t
  shell-dirtrack-mode: t
  global-undo-tree-mode: t
  undo-tree-mode: t
  global-emojify-mode: t
  emojify-mode: t
  async-bytecomp-package-mode: t
  override-global-mode: t
  midnight-mode: t
  global-auto-revert-mode: t
  display-battery-mode: t
  desktop-save-mode: t
  auto-insert-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  auto-fill-function: do-auto-fill
  transient-mark-mode: t
  abbrev-mode: t

Recent messages:
Checking 34 files in
/Users/slippycheeze/homebrew/Cellar/emacs-edge/25.2/share/emacs/25.2/lisp/emulation...
Checking 167 files in
/Users/slippycheeze/homebrew/Cellar/emacs-edge/25.2/share/emacs/25.2/lisp/emacs-lisp...
Checking 24 files in
/Users/slippycheeze/homebrew/Cellar/emacs-edge/25.2/share/emacs/25.2/lisp/cedet...
Checking 57 files in
/Users/slippycheeze/homebrew/Cellar/emacs-edge/25.2/share/emacs/25.2/lisp/calendar...
Checking 87 files in
/Users/slippycheeze/homebrew/Cellar/emacs-edge/25.2/share/emacs/25.2/lisp/calc...
Checking 120 files in
/Users/slippycheeze/homebrew/Cellar/emacs-edge/25.2/share/emacs/25.2/lisp/obsolete...
Checking for load-path shadows...done
user-error: End of history; no default available [2 times]

Features:
(shadow sort footnote mail-extr gnus-msg gnus-art mm-uu mml2015 mm-view
mml-smime smime dig mailcap gnus-sum gnus-group gnus-undo gnus-start
gnus-cloud nnimap nnmail mail-source tls gnutls utf7 netrc nnoo parse-time
gnus-spec gnus-int gnus-range gnus-win emacsbug message rfc822 mml mml-sec
epg
mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils
mailheader sendmail rfc2047 rfc2045 ietf-drums pp tabify bs executable
tramp-cmds debug tramp-cache misearch multi-isearch find-func cursor-sensor
diff-mode highlight-parentheses flyspell ispell ws-butler jka-compr skeleton
generic-x cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align
align
tramp tramp-compat auth-source eieio eieio-core password-cache
tramp-loaddefs
delight emojify apropos tar-mode json map subr-x ht dracula-theme edmacro
kmacro async-bytecomp advice async cus-edit memoize dash-functional f dash s
assoc use-package diminish bind-key easy-mmode finder-inf cl-macs cl info
package epg-config seq byte-opt gv bytecomp byte-compile cl-extra cconv
midnight icomplete grep compile comint ansi-color ring gnus gnus-ems
nnheader
gnus-util mail-utils mm-util help-fns help-mode easymenu mail-prsvr wid-edit
autorevert filenotify battery desktop frameset autoinsert cus-start cus-load
cl-seq cl-loaddefs pcase cl-lib time-date mule-util tooltip eldoc electric
uniquify ediff-hook vc-hooks lisp-float-type mwheel ns-win ucs-normalize
term/common-win tool-bar dnd fontset image regexp-opt fringe tabulated-list
newcomment elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow
timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
frame 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 charscript case-table
epa-hook
jka-cmpr-hook help simple abbrev minibuffer cl-preloaded nadvice loaddefs
button faces cus-face macroexp files text-properties overlay sha1 md5 base64
format env code-pages mule custom widget hashtable-print-readable backquote
kqueue cocoa ns multi-tty make-network-process emacs)

Memory information:
((conses 16 582897 386689)
 (symbols 48 46748 3)
 (miscs 40 565 2646)
 (strings 32 160816 184679)
 (string-bytes 1 4469214)
 (vectors 16 96463)
 (vector-slots 8 3893724 189356)
 (floats 8 11677 1729)
 (intervals 56 6386 3416)
 (buffers 976 39))

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