nix-eshell does not work

[happyboy2k]

nix-eshell does not work

[RomeoV]

I have a related problem.

My shell.nix file looks like this:

{ pkgs ? import <nixpkgs> {} }:

pkgs.mkShell {
  buildInputs = [
    pkgs.python311  # You can change this to the desired Python version
    pkgs.poetry
  ];
}

However, running nix-shell or nix-eshell pointed at this file, and just pressing Ret when asked for an attribute, yields

nix-instantiate: Error: nix-instantiate shell.nix failed to produce any output

and the paths are not loaded.

Assigning the shell to an attribute and loading that also doesn't work.

I am on emacs 29.1 and on the latest commit of nix-mode.

EDIT: Okay I found out it is because I am accessing the file through TRAMP and essentially execute the local call-process nix-instantiate) so it doesn't find the file. I'll see if I can fix that.

[RomeoV]

I made some progress by replacing several calls to call-process by process-file, which is essentially a drop-in replacement that also respects remote processes, and further running (add-to-list 'tramp-remote-path 'tramp-own-remote-path). However, it's still not fully working...