haskell: add justStaticExecutables combinator

NixOS · Mar 7, 2017 · db23fe1 · db23fe1
1 parent e50203b
commit db23fe1
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/pkgs/development/haskell-modules/lib.nix b/pkgs/development/haskell-modules/lib.nix
@@ -76,6 +76,14 @@ rec {
     fixupPhase = ":";
   });
 
+  # link executables statically against haskell libs to reduce closure size
+  justStaticExecutables = drv: overrideCabal drv (drv: {
+    enableSharedExecutables = false;
+    isLibrary = false;
+    doHaddock = false;
+    postFixup = "rm -rf $out/lib $out/nix-support $out/share/doc";
+  });
+
   buildFromSdist = pkg: pkgs.lib.overrideDerivation pkg (drv: {
     unpackPhase = let src = sdistTarball pkg; tarname = "${pkg.pname}-${pkg.version}"; in ''
       echo "Source tarball is at ${src}/${tarname}.tar.gz"