Basic Haskell-development-oriented config.nix

config.nix

let
  rev = "d5291756487d70bc336e33512a9baf9fa1788faf";
  #nvimrev = "9842c4b1076a2f54de5e9a81fd91b2b91b1d051e";

  pkgs = import (builtins.fetchTarball { url = "https://github.com/NixOS/nixpkgs/archive/${rev}.tar.gz"; }) {};
  #nvimpkgs = import (builtins.fetchTarball { url = "https://github.com/NixOS/nixpkgs/archive/${nvimrev}.tar.gz"; }) {};

  custom-hasktags = pkgs.fetchFromGitHub {
    owner = "MarcWeber";
    repo = "hasktags";
    rev = "cc133007c45f81e6a584207cf74dcaaf0b090a4d";
    sha256 = "0f5ri7abxngvkpv914l57dwl1qyalibyac0rhvy5h9hr3yv7zbzz";
  };

  custom = {
    hasktags = pkgs.haskellPackages.callCabal2nix "hasktags" custom-hasktags {};
  };

  tools = with pkgs; [
    awscli
    aws-okta
    # bash-completion
    carnix
    ctags
    cabal-install
    git
    htop
    neovim
    tig
    tmux
    tmate
  ];

  hs-tools = with pkgs.haskellPackages; [
    brittany
    ghcid
    custom.hasktags
    hlint
    # stack
  ];

  hsnix = pkgs.buildEnv {
    name = "hsnix";
    paths = tools ++ hs-tools;
  };
in
  {
    allowUnfree = true;
    #allowBroken = true;
    packageOverrides = super: { inherit hsnix; };
  }