From adbdc6020070af3846e7365d00a1ee5e4b8659e7 Mon Sep 17 00:00:00 2001
From: OPNA2608 <opna2608@protonmail.com>
Date: Tue, 9 Apr 2024 16:41:10 +0200
Subject: [PATCH] dosbox-x: Get Darwin icon working

---
 .../emulators/dosbox-x/default.nix            | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/pkgs/applications/emulators/dosbox-x/default.nix b/pkgs/applications/emulators/dosbox-x/default.nix
index c499c69e5442..7ec2b8df3b71 100644
--- a/pkgs/applications/emulators/dosbox-x/default.nix
+++ b/pkgs/applications/emulators/dosbox-x/default.nix
@@ -10,6 +10,7 @@
 , fluidsynth
 , freetype
 , glib
+, libicns
 , libpcap
 , libpng
 , libslirp
@@ -18,6 +19,7 @@
 , makeWrapper
 , ncurses
 , pkg-config
+, python3
 , SDL2
 , SDL2_net
 , testers
@@ -36,12 +38,29 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-EcAp7KyqXdBACEbPgkM1INoKeGVo7hMDUx97y2RcX+k=";
   };
 
+  # sips is unavailable in sandbox, replacing with imagemagick breaks build due to wrong Foundation propagation(?) so don't generate resolution variants
+  # iconutil is unavailable, replace with png2icns from libicns
+  # Patch bad hardcoded compiler
+  # Don't mess with codesign, doesn't seem to work?
+  postPatch = ''
+    substituteInPlace Makefile.am \
+      --replace-fail 'sips' '## sips' \
+      --replace-fail 'iconutil -c icns -o contrib/macos/dosbox.icns src/dosbox.iconset' 'png2icns contrib/macos/dosbox.icns contrib/macos/dosbox-x.png' \
+      --replace-fail 'g++' "$CXX" \
+      --replace-fail 'codesign' '## codesign'
+  '' + lib.optionalString stdenv.hostPlatform.isDarwin ''
+    patchShebangs appbundledeps.py
+  '';
+
   strictDeps = true;
 
   nativeBuildInputs = [
     autoreconfHook
     makeWrapper
     pkg-config
+  ] ++ lib.optionals stdenv.hostPlatform.isDarwin [
+    libicns
+    python3
   ];
 
   buildInputs = [
@@ -75,9 +94,22 @@ stdenv.mkDerivation (finalAttrs: {
 
   hardeningDisable = [ "format" ]; # https://github.com/joncampbell123/dosbox-x/issues/4436
 
+  # Build optional App Bundle target, which needs at least one arch-suffixed binary
+  postBuild = lib.optionalString stdenv.hostPlatform.isDarwin ''
+    cp src/dosbox-x src/dosbox-x-$(uname -m)
+    make dosbox-x.app
+  '';
+
   postInstall = lib.optionalString stdenv.hostPlatform.isLinux ''
     wrapProgram $out/bin/dosbox-x \
       --prefix PATH : ${lib.makeBinPath [ yad ]}
+  ''
+  # Install App Bundle, wrap regular binary into bundle's binary to get the icon working
+  + lib.optionalString stdenv.hostPlatform.isDarwin ''
+    mkdir $out/Applications
+    mv dosbox-x.app $out/Applications/
+    mv $out/bin/dosbox-x $out/Applications/dosbox-x.app/Contents/MacOS/dosbox-x
+    makeWrapper $out/Applications/dosbox-x.app/Contents/MacOS/dosbox-x $out/bin/dosbox-x
   '';
 
   passthru.tests.version = testers.testVersion {