shiru: add darwin support (#534728)

pkgs/by-name/sh/shiru/package.nix

@@ -65,7 +65,12 @@ stdenv.mkDerivation (finalAttrs: {
 
     ./node_modules/.bin/electron-builder --dir \
       --c.electronDist=electron-dist \
-      --c.electronVersion=${electron.version}
+      --c.electronVersion=${electron.version} \
+      ${lib.optionalString stdenv.hostPlatform.isDarwin ''
+        --c.npmRebuild=false \
+        --c.mac.identity=null \
+        --c.mac.notarize=false \
+      ''}
 
     runHook postBuild
   '';
@@ -73,6 +78,8 @@ stdenv.mkDerivation (finalAttrs: {
   installPhase = ''
     runHook preInstall
 
+  ''
+  + lib.optionalString (!stdenv.hostPlatform.isDarwin) ''
     mkdir -p "$out/share/lib/shiru"
     cp -r dist/*-unpacked/{locales,resources{,.pak}} "$out/share/lib/shiru"
 
@@ -82,7 +89,18 @@ stdenv.mkDerivation (finalAttrs: {
       --add-flags "$out/share/lib/shiru/resources/app.asar" \
       --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ stdenv.cc.cc.lib ]}" \
       --inherit-argv0
+  ''
+  + lib.optionalString stdenv.hostPlatform.isDarwin ''
+    mkdir -p "$out/Applications"
+    cp -r dist/mac*/Shiru.app "$out/Applications/"
 
+    mkdir -p "$out/bin"
+    makeWrapper \
+      "$out/Applications/Shiru.app/Contents/MacOS/Shiru" \
+      "$out/bin/shiru" \
+      --set-default ELECTRON_IS_DEV 0
+  ''
+  + ''
     runHook postInstall
   '';
 
@@ -116,7 +134,10 @@ stdenv.mkDerivation (finalAttrs: {
     maintainers = with lib.maintainers; [
       naomieow
     ];
-    platforms = [ "x86_64-linux" ];
+    platforms = [
+      "x86_64-linux"
+      "aarch64-darwin"
+    ];
     mainProgram = "shiru";
   };
 })