shell.nix

let
  inherit (pkgs)
    writeScript
    stdenv
  ;

  nixpkgs = <nixpkgs>;
  config = {};
  pkgs = import nixpkgs { inherit config; };

  shellWrapper = writeScript "shell-wrapper" ''
    #! ${stdenv.shell}
    set -e

    exec -a shell ${pkgs.fish}/bin/fish --login --interactive "$@"
  '';
in stdenv.mkDerivation rec {
  name = "nix-shell";
  buildInputs = with pkgs; [
    glibcLocales bashInteractive man
    nix cacert curl utillinux coreutils
    git jq yq-go tmux findutils gnumake

    go gopls golangci-lint
  ];
  shellHook = ''
    export root=$(pwd)

    export LANG="en_US.UTF-8"
    export NIX_PATH="nixpkgs=${nixpkgs}"

    if [ ! -z "$PS1" ]
    then
      export SHELL="${shellWrapper}"
      exec "$SHELL"
    fi
  '';
}