Package: emacs;
Reported by: Fan Yang <fan_yang <at> sjtu.edu.cn>
Date: Sat, 20 Jul 2019 14:42:01 UTC
Severity: normal
Found in version 25.2
Fixed in version 27.1
Done: Michael Albinus <michael.albinus <at> gmx.de>
Bug is archived. No further changes may be made.
Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Fan Yang <fan_yang <at> sjtu.edu.cn> To: bug-gnu-emacs <at> gnu.org Subject: 25.2; shell-mode over TRAMP does not read remote history file as comint input ring Date: Sat, 20 Jul 2019 22:30:42 +0800 (CST)
* Bug description:
When using "M-x shell" on a remote file (say "/scp:yf <at> val17:"), a bash
is started at the server "val17" as the user "yf". But the "*shell*"
buffer is started with an empty input ring. It does not read bash
history file ("/scp:yf <at> val17:~/.bash_history") into comint input ring.
* What is expected:
When using "M-x shell" on a remote file (say "/scp:yf <at> val17:"), a bash
is started at the server "val17" as the user "yf". The "*shell*"
1. has the content of "/scp:yf <at> val17:~/.bash_history" as comint input
ring. And I can use "M-p" to insert previous command, use "M-r" to
isearch previous comamnd, etc.
2. the commands I have input in this "*shell*" will be appended to
"/scp:yf <at> val17:~/.bash_history" after shell exit.
Just like what "shell-mode" does for local shell.
* To re-produce:
Here is the content of the dribble file of my re-producing this issue
(control characters are replaced with caret)
--8<---------------cut here---------------start------------->8---
^X^F/scp:yf <at> val17:
^[xshell
^[p^[p^[p^X^Cyes
--8<---------------cut here---------------end--------------->8---
* My findings, if I may:
The code of shell-mode shows
--8<---------------cut here---------------start------------->8---
(setq comint-input-ring-file-name
(or (getenv "HISTFILE")
(cond ((string-equal shell "bash") "~/.bash_history")
((string-equal shell "ksh") "~/.sh_history")
(t "~/.history"))))
--8<---------------cut here---------------end--------------->8---
It seems remote file path is not considered.
* How big this issue is?
Have a shell history is convenient and saves a lot of typing repeated or
similar commands. Me and many of my colleagues use shell history
isearch heavily. It works very well for local shells. It is a little
bit disappointing that it does not work on remote shells.
Best Regards,
Fan
In GNU Emacs 25.2.2 (x86_64-pc-linux-gnu, GTK+ Version 3.22.21)
of 2017-09-23, modified by Debian built on lgw01-amd64-050
System Description: Ubuntu 18.04.2 LTS
Configured using:
'configure --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/emacs25:/etc/emacs:/usr/local/share/emacs/25.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.2/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --without-gconf --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/emacs25:/etc/emacs:/usr/local/share/emacs/25.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.2/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --without-gconf --with-x=yes --with-x-toolkit=gtk3
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Important settings:
value of $LC_MONETARY: en_US.UTF-8
value of $LC_NUMERIC: en_US.UTF-8
value of $LC_TIME: en_US.UTF-8
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Major mode: Lisp Interaction
Minor modes in effect:
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