Re: guix environment & PS1

[Ricardo Wurmus]

Ludovic Courtès <address@hidden> writes:

> Cyril Roelandt <address@hidden> skribis:
>
>> +(define (run-shell shell env-name)
>> +  "Run the given SHELL, adding '(ENV-NAME) ' at the start of the prompt."
>> +  (cond ((string=? shell "/bin/bash")
>> +         (let* ((directory (or (getenv "TMPDIR") "/tmp"))
>> +                (template  (string-append directory "/guix-file.XXXXXX"))
>> +                (out       (mkstemp! template)))
>> +           (format out "export PS1=\"(~a) $PS1\"" env-name)
>> +           (flush-output-port out)
>> +           (system (string-append "/bin/bash --rcfile " template))))
>
> What about this simpler idea: ‘guix environment’ would unconditionally
> do:
>
>   (setenv "GUIX_ENVIRONMENT" "t")
>
> and then users can choose in their .bashrc to use a separate PS1 when
> GUIX_ENVIRONMENT is defined.

Would it be feasible to give "GUIX_ENVIRONMENT" the package name as a
value instead of just "t"?