Added nix build expression

makes a derivation with a functioning server inside of it.

1 files changed, 33 insertions, 0 deletions

diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..ebcb880
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,33 @@
+{ nixpkgs ? import <nixpkgs> {}, compiler ? "default", doBenchmark ? false }:
+
+let
+
+  inherit (nixpkgs) pkgs;
+
+  f = { mkDerivation, aeson, base, bytestring, stdenv, text
+      , unordered-containers, websockets
+      }:
+      mkDerivation {
+        pname = "haskell-ws-test";
+        version = "0.1.0.0";
+        src = ./.;
+        isLibrary = false;
+        isExecutable = true;
+        executableHaskellDepends = [
+          aeson base bytestring text unordered-containers websockets
+        ];
+        license = "unknown";
+        hydraPlatforms = stdenv.lib.platforms.none;
+      };
+
+  haskellPackages = if compiler == "default"
+                       then pkgs.haskellPackages
+                       else pkgs.haskell.packages.${compiler};
+
+  variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id;
+
+  drv = variant (haskellPackages.callPackage f {});
+
+in
+
+  if pkgs.lib.inNixShell then drv.env else drv