Subject: Re: bug#60632: [PATCH 1/1] services: base: Add extra-env support to guix-configuration.

From: Ludovic Courtès <[email-masked]>
Date: Tue, 31 Jan 2023 23:18:10 +0100

Hi!

Maxim Cournoyer <[email-masked]> skribis:

> Side topic: I wonder if (with some changes to the daemon -- perhaps in
> DerivationGoal::startBuilder) in nix/libstore/build.cc we could leak the
> COLUMNS variable to be able to control the Guile builder backtrace
> width.

As a rule of thumb, I think we should keep the build environment
unchanged forever—no changes to the set of environment variables and
files/directories present in the build environment.

It’s important because the whole reproducibile-by-construction approach
depends on that.

Ludo’.