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Re: How can I replace Python venv and pip with Guix?
From: |
Ricardo Wurmus |
Subject: |
Re: How can I replace Python venv and pip with Guix? |
Date: |
Tue, 04 Feb 2020 15:02:36 +0100 |
User-agent: |
mu4e 1.2.0; emacs 26.3 |
sirgazil <address@hidden> writes:
> • Once I deactivate this environment (Ctrl+D), how can I activate it again?
It’s a matter of evaluating the etc/profile file that is generated for
every Guix profile. Since you passed
--root=/path/to/my-guix-envs/my-project
to “guix environment” there will be a file
/path/to/my-guix-envs/my-project/etc/profile
You can set all the environment variables it defines with
GUIX_PROFILE=/path/to/my-guix-envs/my-project
source $GUIX_PROFILE/etc/profile
If you want a pure environment you can use “env”. On our HPC cluster I
provide “activate” scripts like this one:
--8<---------------cut here---------------start------------->8---
#!/bin/bash
profile=/path/to/.guix-profile
prompt='\u@\h:\W \[\e[31;47;1m\][pigx]\[\e[m\] $ '
REAL_HOME=$HOME
exec /bin/env - PS1="$prompt" \
HOME=$REAL_HOME \
LANG=en_US.UTF-8 \
GUIX_LOCPATH="$profile/lib/locale" \
CURL_CA_BUNDLE="/etc/ssl/certs/ca-bundle.crt" \
/bin/bash --init-file "$profile/etc/profile"
--8<---------------cut here---------------end--------------->8---
It sets a few environment variables, recovers some variables that are
important, and then starts a sub-shell that uses the generated
etc/profile file as its init file.
Something like that might work for you.
--
Ricardo