shell.nix

   1 { pkgs ? import <nixpkgs> {}, compiler ? "ghc7102" }:
   2 let hspkgs = pkgs.haskell.packages.${compiler}.override {
   3   overrides = self: super: {
   4     this = self.callPackage ./. {};
   5   };
   6 };
   7   hsWithTools = pkgs.lib.overrideDerivation hspkgs.this (attrs: with pkgs; {
   8       buildInputs = [ /* Other deps */ ] ++ attrs.buildInputs;
   9       });
  10 in
  11   hsWithTools.env