Import cabal new-build shell and updated stack-to-nix syntax

default.nix

@@ -1,6 +1,11 @@
-{ pkgs ? import ./closure.nix }: with pkgs;
+{ pkgs ? import ./closure.nix, root ? ./., shell ? false }: with pkgs;
 
 stackToNix {
+  # TODO: implement filtering in stack-to-nix
+  root = lib.cleanSource root;
+
+  inherit shell;
+
   overrides = final: previous: with haskell.lib; {
     ariadne-cardano = overrideCabal previous.ariadne-cardano (super: {
       buildTools = [ git ];
@@ -19,6 +24,4 @@ stackToNix {
       librarySystemDepends = with qt5; [ qtbase qttools ];
     });
   };
-
-  src = lib.cleanSource ./.;
 }

shell.nix

@@ -1,48 +1 @@
-{ _nixpkgs ? import <nixpkgs> {} }:
-
-let
-  jemalloc450 = import ./jemalloc450.nix { pkgs = nixpkgs; };
-  rocksdb = nixpkgs.rocksdb.override { jemalloc = jemalloc450; };
-
-  nixpkgs = import (_nixpkgs.fetchFromGitHub {
-    owner = "NixOS";
-    repo = "nixpkgs";
-    rev = "e7a327da5cffdf5e77e1924906a4f0983591bd3e";
-    sha256 = "1xzil4mayhggg2miwspbk12nihlszg0y4n6i4qacrxql5n75f0hr";
-  }){ overlays = [cabalHashes]; };
-
-  cabalHashes = sel: super: {
-    all-cabal-hashes = super.fetchurl {
-      url    = "https://github.com/commercialhaskell/all-cabal-hashes/archive/b2b93ae610f5f1b51d22b191f972dc3dec8f94c6.tar.gz";
-      sha256 = "0bffclpqbw62xff36qlzxghr042mhv0m06k5ml4298w6fv7ly1xw";
-    };
-  };
-
-  ghc = nixpkgs.haskell.compiler.ghc822;
-  haskellPackages = nixpkgs.haskell.packages.ghc822;
-
-in
-
-nixpkgs.haskell.lib.buildStackProject {
-  inherit ghc;
-  name = "ariadne-env";
-  buildInputs = with nixpkgs;
-    [ autoreconfHook
-      bsdiff
-      gcc
-      git
-      gmp
-      haskellPackages.cpphs
-      haskellPackages.happy
-      icu
-      lzma
-      ncurses
-      openssl
-      openssh
-      rocksdb
-      zlib
-      qt5.qtbase
-    ];
-  LANG="en_US.UTF-8";
-  QT_QPA_PLATFORM_PLUGIN_PATH="${nixpkgs.qt5.qtbase.bin}/lib/qt-5.9/plugins/platforms";
-}
+import ./. { shell = true; }