nu

nix/default.nix

@@ -1,17 +1,32 @@
 {
-  ocamlPackages,
-  buildInputs,
-  git,
+  pkgs,
+  lib,
+  stdenvNoCC,
+  nushell,
+  makeBinaryWrapper,
   version,
+  differ ? pkgs.dix,
+  monitor ? pkgs.nix-output-monitor,
   ...
 }:
-ocamlPackages.buildDunePackage {
+stdenvNoCC.mkDerivation {
   pname = "meat";
-  version = "0.1-delicious-${version}";
-
-  minimalOCamlVersion = "5.2";
+  version = "0.2-succulent-${version}";
 
   src = ./..;
-  nativeBuildInputs = [ git ];
-  buildInputs = buildInputs;
+
+  nativeBuildInputs = [ makeBinaryWrapper ];
+
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+    install -Dm644 meat.nu $out/share/meat/meat.nu
+    mkdir -p $out/bin
+    makeBinaryWrapper ${nushell}/bin/nu $out/bin/meat \
+      --add-flags "$out/share/meat/meat.nu" \
+      --set DIFFER ${lib.makeBinPath [ differ ]} \
+      --set MONITOR ${lib.makeBinPath [ monitor ]}
+    runHook postInstall
+  '';
 }