Re: emacs hangs when connecting from windows to linux with tcsh shell

[Michael Albinus]

Michael Albinus <address@hidden> writes:

> Hi,

>> Here is the interesting part of the debug:
>>
>> 12:34:02.703000 tramp-maybe-open-connection (3) # Found remote shell
>> prompt on `ip.add.re.ss'
>> 12:34:02.703000 tramp-open-shell (5) # Opening remote shell `/bin/sh'...
>> 12:34:02.704000 tramp-get-connection-property (7) # process-name nil
>> 12:34:02.704000 tramp-get-connection-property (7) # remote-echo nil
>> 12:34:02.705000 tramp-send-command (6) # exec env ENV=''
>> PROMPT_COMMAND='' PS1="#$" PS2='' PS3='' /bin/sh
>
> And that's what I don't understand. Tramp shall NOT send PS1="#$" (these
> days, it sends PS1=\#\$ ). Could you, please, have a look in tramp.el,
> and search for PS1= (just these 4 characters). I did it also, and there
> was no evidence, that double apostrophes are sent - this is the problem.

I believe I understand now. You are on Windows. And shell-quote-argument
behaves different there.

Could you, please, apply the following patch (untested, I do not work
under Windows):

--8<---------------cut here---------------start------------->8---
*** --- /home/albinus/src/tramp-2-1-stable/lisp/tramp.el.~V-2-1-20~     
2011-08-03 21:09:31.544415256 +0200
--- /home/albinus/src/tramp-2-1-stable/lisp/tramp.el    2011-08-03 
21:07:56.799425467 +0200
***************
*** 6659,6669 ****
        (when extra-args (setq shell (concat shell " " extra-args)))
        (tramp-send-command
         vec (format "exec env ENV='' PROMPT_COMMAND='' PS1=%s PS2='' PS3='' %s"
!                  (shell-quote-argument tramp-end-of-output) shell)
         t))
      ;; Setting prompts.
      (tramp-send-command
!      vec (format "PS1=%s" (shell-quote-argument tramp-end-of-output)) t)
      (tramp-send-command vec "PS2=''" t)
      (tramp-send-command vec "PS3=''" t)
      (tramp-send-command vec "PROMPT_COMMAND=''" t)))
--- 6659,6669 ----
        (when extra-args (setq shell (concat shell " " extra-args)))
        (tramp-send-command
         vec (format "exec env ENV='' PROMPT_COMMAND='' PS1=%s PS2='' PS3='' %s"
!                  (tramp-shell-quote-argument tramp-end-of-output) shell)
         t))
      ;; Setting prompts.
      (tramp-send-command
!      vec (format "PS1=%s" (tramp-shell-quote-argument tramp-end-of-output)) t)
      (tramp-send-command vec "PS2=''" t)
      (tramp-send-command vec "PS3=''" t)
      (tramp-send-command vec "PROMPT_COMMAND=''" t)))
***************
*** 6997,7003 ****
  
    (tramp-message vec 5 "Setting shell prompt")
    (tramp-send-command
!    vec (format "PS1=%s" (shell-quote-argument tramp-end-of-output)) t)
    (tramp-send-command vec "PS2=''" t)
    (tramp-send-command vec "PS3=''" t)
    (tramp-send-command vec "PROMPT_COMMAND=''" t)
--- 6997,7003 ----
  
    (tramp-message vec 5 "Setting shell prompt")
    (tramp-send-command
!    vec (format "PS1=%s" (tramp-shell-quote-argument tramp-end-of-output)) t)
    (tramp-send-command vec "PS2=''" t)
    (tramp-send-command vec "PS3=''" t)
    (tramp-send-command vec "PROMPT_COMMAND=''" t)
--8<---------------cut here---------------end--------------->8---

>> Best regards,
>> Peter

Best regards, Michael.