Simplify release.nix

Author: angerman

release.nix

@@ -1,23 +1,4 @@
-let
-   config = {
-    packageOverrides = pkgs: rec {
-      haskellPackages = pkgs.haskell.packages.ghc843.override {
-        overrides = haskellPackagesNew: haskellPackagesOld: rec {
-          cardano-prelude   = haskellPackagesNew.callPackage ./cardano-prelude.nix {
-            #canonical-json = pkgs.haskell.lib.dontCheck (haskellPackagesNew.callHackage "canonical-json" "0.5.0.1" {});
-            canonical-json = pkgs.haskell.lib.dontCheck (haskellPackagesNew.callPackage ./canonical-json.nix {});
-          };
-          cardano-shell     = haskellPackagesNew.callPackage ./cardano-shell.nix { };
-        };
-      };
-    };
-  };
-  nixpkgs = builtins.fetchTarball {
-    url    = "https://github.com/NixOS/nixpkgs/archive/069bf7aee30faf7b3ed773cfae2154d761b2d6c2.tar.gz";
-    sha256 = "1c44vjb60fw2r8ck8yqwkj1w4288wixi59c6w1vazjixa79mvjvg";
-  };
-
-  pkgs = import nixpkgs { inherit config; };
-in
-  { cardano-shell = pkgs.haskellPackages.cardano-shell;
-  }
+with import ./default.nix {};
+{ cardano-shell-execs = cardano-shell.components.exes;
+  cardano-shell-tests = cardano-shell.components.tests;
+}