Re: [PATCH] environment: Set a default value for PS1.

[ludo@gnu.org (Ludovic Courtès)]

"Thompson, David" <dthompson2@worcester.edu> skribis:

> On Wed, Mar 30, 2016 at 9:28 AM, Cyril Roelandt <tipecaml@gmail.com> wrote:
>> On 03/28/2016 03:22 AM, David Thompson wrote:
>>> +            ;; Set a reasonable default PS1.
>>> +            (setenv "PS1" "[ENV] \\u@\\h \\w\\$ ")
>>> +
>> Would it be an acceptable feature to let the user ask for their own PS1?
>> I very often have to make sure my code works on both Python 2.7 and
>> Python 3.4, and it would be very helpful to have environments named
>> "(py27)" and "(py34)" instead of just "[ENV]".
>
> I should have made the commit message better.  This change only
> applies to containers.  If you want to set your own PS1 there, source
> a script in the container.

Specifically, you can have something like this in ~/.bashrc (this is the
default on GuixSD):

--8<---------------cut here---------------start------------->8---
# Adjust the prompt depending on whether we're in 'guix environment'.
if [ -n "$GUIX_ENVIRONMENT" ]
then
    export PS1='\u@\h \w [env]\$ '
else
    export PS1='\u@\h \w\$ '
fi
--8<---------------cut here---------------end--------------->8---

HTH!

Ludo’.