From d52102e1a190aa5d44e8ea908bd9b452ee273714 Mon Sep 17 00:00:00 2001
From: stuebinm
Date: Mon, 7 Nov 2022 22:48:59 +0100
Subject: nix: strip ghc dependencies from output

---
 default.nix | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/default.nix b/default.nix
index 73021ff..a8c75d8 100644
--- a/default.nix
+++ b/default.nix
@@ -53,4 +53,15 @@ let
 
   drv = variant (haskellPackages.callPackage f {});
 
-in drv
+  # this removes the /lib directory from the built derivation, which depends on ghc.
+  # this dramatically reduces closure size
+  stripLib = drv: pkgs.stdenv.mkDerivation {
+    name = drv.name + "-without-lib";
+    src = drv.outPath;
+    buildPhase = ''
+      mkdir -p $out
+      cp -r $src/bin $out
+    '';
+    phases = [ "buildPhase" ];
+  };
+in stripLib drv
-- 
cgit v1.2.3