convert nix expressions to flakes

1 files changed, 10 insertions, 9 deletions

diff --git a/shell.nix b/shell.nix
index 40ee189..339bb5d 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,12 +1,13 @@
-let
-  pkgs = import <nixpkgs> { };
+{ mkShell, ghc, haskell, biohazardSrc }:
 
-  ghc = with pkgs.haskell.lib;
-    pkgs.ghc.withPackages (pkgs:
-      with pkgs;
-      [
+let
+  ghcP = with haskell.lib;
+    ghc.withPackages (pkgs:
+      with pkgs; [
         hlint
-        (doJailbreak (markUnbroken
-          (biohazard.overrideAttrs (_: { patches = [ ./biohazard.patch ]; }))))
+        (doJailbreak (markUnbroken (biohazard.overrideAttrs (_: {
+          src = biohazardSrc;
+          patches = [ ./biohazard.patch ];
+        }))))
       ]);
-in pkgs.mkShell { buildInputs = [ ghc ]; }
+in mkShell { buildInputs = [ ghcP ]; }