discord: add openasar option

pkgs/applications/networking/instant-messengers/discord/darwin.nix

@@ -1,4 +1,4 @@
-{ pname, version, src, meta, stdenv, binaryName, desktopName, undmg }:
+{ pname, version, src, openasar, meta, stdenv, binaryName, desktopName, lib, undmg }:
 
 stdenv.mkDerivation {
   inherit pname version src meta;
@@ -8,7 +8,15 @@ stdenv.mkDerivation {
   sourceRoot = ".";
 
   installPhase = ''
+    runHook preInstall
+
     mkdir -p $out/Applications
     cp -r "${desktopName}.app" $out/Applications
+
+    runHook postInstall
+  '';
+
+  postInstall = lib.strings.optionalString (openasar != null) ''
+    cp -f ${openasar} $out/Applications/${desktopName}.app/Contents/Resources/app.asar
   '';
 }

pkgs/applications/networking/instant-messengers/discord/default.nix

@@ -1,4 +1,4 @@
-{ branch ? "stable", pkgs, lib, stdenv }:
+{ branch ? "stable", pkgs, lib, stdenv, withOpenASAR ? false }:
 let
   inherit (pkgs) callPackage fetchurl;
   versions = if stdenv.isLinux then {
@@ -61,8 +61,11 @@ let
       ++ lib.optionals (branch == "ptb") [ "aarch64-darwin" ];
   };
   package = if stdenv.isLinux then ./linux.nix else ./darwin.nix;
+
+  openasar = if withOpenASAR then callPackage ./openasar.nix { } else null;
+
   packages = (builtins.mapAttrs
-    (_: value: callPackage package (value // { inherit src version; meta = meta // { mainProgram = value.binaryName; }; }))
+    (_: value: callPackage package (value // { inherit src version openasar; meta = meta // { mainProgram = value.binaryName; }; }))
     {
       stable = rec {
         pname = "discord";

pkgs/applications/networking/instant-messengers/discord/linux.nix

@@ -1,4 +1,4 @@
-{ pname, version, src, meta, binaryName, desktopName, autoPatchelfHook
+{ pname, version, src, openasar, meta, binaryName, desktopName, autoPatchelfHook
 , makeDesktopItem, lib, stdenv, wrapGAppsHook, makeShellWrapper, alsa-lib, at-spi2-atk
 , at-spi2-core, atk, cairo, cups, dbus, expat, fontconfig, freetype, gdk-pixbuf
 , glib, gtk3, libcxx, libdrm, libnotify, libpulseaudio, libuuid, libX11
@@ -72,6 +72,8 @@ stdenv.mkDerivation rec {
   ];
 
   installPhase = ''
+    runHook preInstall
+
     mkdir -p $out/{bin,opt/${binaryName},share/pixmaps,share/icons/hicolor/256x256/apps}
     mv * $out/opt/${binaryName}
 
@@ -95,6 +97,12 @@ stdenv.mkDerivation rec {
     ln -s $out/opt/${binaryName}/discord.png $out/share/icons/hicolor/256x256/apps/${pname}.png
 
     ln -s "${desktopItem}/share/applications" $out/share/
+
+    runHook postInstall
+  '';
+
+  postInstall = lib.strings.optionalString (openasar != null) ''
+    cp -f ${openasar} $out/opt/${binaryName}/resources/app.asar
   '';
 
   desktopItem = makeDesktopItem {

pkgs/applications/networking/instant-messengers/discord/openasar.nix

@@ -0,0 +1,42 @@
+{ lib, stdenv, fetchFromGitHub, nodejs, bash, nodePackages }:
+
+stdenv.mkDerivation rec {
+  version = "unstable-2022-06-10";
+  pname = "openasar";
+
+  src = fetchFromGitHub {
+    owner = "GooseMod";
+    repo = "OpenAsar";
+    rev = "c6f2f5eb7827fea14cb4c54345af8ff6858c633a";
+    sha256 = "m6e/WKGgkR8vjKcHSNdWE25MmDQM1Z3kgB24OJgbw/w=";
+  };
+
+  buildPhase = ''
+    runHook preBuild
+
+    bash scripts/injectPolyfills.sh
+    substituteInPlace src/index.js --replace 'nightly' '${version}'
+    ${nodejs}/bin/node scripts/strip.js
+    ${nodePackages.asar}/bin/asar pack src app.asar
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    install app.asar $out
+
+    runHook postInstall
+  '';
+
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Open-source alternative of Discord desktop's \"app.asar\".";
+    homepage = "https://openasar.dev";
+    license = licenses.mit;
+    maintainers = with maintainers; [ pedrohlc ];
+    platforms = nodejs.meta.platforms;
+  };
+}