Dear list,
I have been using nix-shell for a while now to have on-demand/ad-hoc development environments for different projects. These are hooked in with direnv and the whole experience is quite nice. However, I would like to translate these to Guix because I find the tooling around Guix and Scheme far better and easier. However, one necessary feature of `guix shell` I'm not seeing: ability to set arbitrary environment variables when `guix shell` loads. Certainly, I thought I could just add some `(setenv "FOO" "bar")` in the `manifest.scm` file. But if the environment is reloaded, these statements do not seem to persist. For example, I've been working on a manifest for my current main project, it has the following, elided for brevity, contents: ``` (define z3-with-java (package (inherit z3) ...)) (let ((z3-dir (run-with-store (open-connection) (package-file z3-with-java)))) (setenv "LD_LIBRARY_PATH" (string-append z3-dir "/lib")) (setenv "Z3_DIR" z3-dir)) (packages->manifest (list openjdk11 ... z3-with-java)) ``` Perhaps, this is not the right way to do this? Is there a different mechanism I am not aware of? Would this be a good extension to `guix shell` manifests? This would not be an issue if I did not need the store path of the package. I could simply set the environment variables in the `.envrc` file. However, I still think it would be preferable to have a mechanism for setting environment variables via `guix shell` similar to `nix shell`. Thoughts? My gratitude in advance. -Kenny -- :SIG:!0xB0CAA28A02958308!: