helm/modules/dev/rust.nix

# modules/dev/rust.nix --- https://rust-lang.org
#
# Oh Rust. The light of my life, fire of my loins. Years of C++ has conditioned
# me to believe there was no hope left, but the gods have heard us. Sure, you're
# not going to replace C/C++. Sure, your starlight popularity has been
# overblown. Sure, macros aren't namespaced, cargo bypasses crates.io, and there
# is no formal proof of your claims for safety, but who said you have to solve
# all the world's problems to be wonderful?

{ lib, pkgs, ... }:
{
  my = {
    packages = with pkgs; [
      rustup
      rustfmt
      rls
    ];

    env.RUSTUP_HOME = "$XDG_DATA_HOME/rustup";
    env.CARGO_HOME = "$XDG_DATA_HOME/cargo";
    env.PATH = [ "$CARGO_HOME/bin" ];

    alias.rs  = "rustc";
    alias.rsp = "rustup";
    alias.ca  = "cargo";

    init = ''
      if [ ! -d "$RUSTUP_HOME" ]; then
        ${pkgs.rustup}/bin/rustup update nightly
        ${pkgs.rustup}/bin/rustup default nightly
      fi
    '';
  };
}