bug#9647: dirtrack.el patch to support prefixed paths, e.g. tramp remote shells

[Michael Albinus <michael.albinus@gmx.de>]

Ryan Barrett <emacs@ryanb.org> writes:

>> This looks to me like a similar bug as bug #9616, which has been said to
>> be solved a week ago. Could you, please, check whether it is solved for
>> you as well?
>
> i looked at http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9616 , and
> this is a different bug. that one is for shell-dirtrack-mode (in
> shell.el); mine is for dirtrack-mode (in dirtrack.el).
>
> i synched to head and rebuilt, and the reproduction steps and patch i
> posted still work.

I see.

However, I still don't know whether this shall be fixed in
dirtrack.el. Maybe it would be better if Tramp could support.

I do not use dirtrack.el myself, so I need some guidance from you to
reproduce. You wrote as recipe:

(shell-dirtrack-mode 0)
(set-variable 'dirtrack-list "[REGEX]")
(dirtrack-mode 1)

What do you use as "[REGEX]"? Shouldn't this be a list?

Remote shells as implemented by Tramp do not provide any directory
information in the prompt. By default, the prompt looks like this:

/sudo:root@hostname: #$ 

How do you customize that prompt?

Best regards, Michael.