From 3dfad2c328293b3a96a2efd991caec1bd83c662f Mon Sep 17 00:00:00 2001
From: Anderson Torres <torres.anderson.85@protonmail.com>
Date: Sun, 4 Feb 2024 21:34:16 -0300
Subject: [PATCH 1/2] emulationstation: migrate to by-name

---
 .../default.nix => by-name/em/emulationstation/package.nix}     | 0
 pkgs/top-level/all-packages.nix                                 | 2 --
 2 files changed, 2 deletions(-)
 rename pkgs/{applications/emulators/emulationstation/default.nix => by-name/em/emulationstation/package.nix} (100%)

diff --git a/pkgs/applications/emulators/emulationstation/default.nix b/pkgs/by-name/em/emulationstation/package.nix
similarity index 100%
rename from pkgs/applications/emulators/emulationstation/default.nix
rename to pkgs/by-name/em/emulationstation/package.nix
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 4a76ca2721f1..b6a23fd79d7c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2684,8 +2684,6 @@ with pkgs;
 
   emu2 = callPackage ../applications/emulators/emu2 { };
 
-  emulationstation = callPackage ../applications/emulators/emulationstation { };
-
   fceux = libsForQt5.callPackage ../applications/emulators/fceux { };
 
   firebird-emu = libsForQt5.callPackage ../applications/emulators/firebird-emu { };

From af039eb7c612e55cb7ed3141c3ae20587aafcf0f Mon Sep 17 00:00:00 2001
From: Anderson Torres <torres.anderson.85@protonmail.com>
Date: Sat, 27 Jan 2024 10:30:22 -0300
Subject: [PATCH 2/2] emulationstation: refactor

- finalAttrs design pattern
- remove eigen dependency
- strictDeps
- move resources to $out/share
- link resources to $out/bin
---
 pkgs/by-name/em/emulationstation/package.nix | 80 ++++++++++++++++----
 1 file changed, 64 insertions(+), 16 deletions(-)

diff --git a/pkgs/by-name/em/emulationstation/package.nix b/pkgs/by-name/em/emulationstation/package.nix
index f0434ecdedf4..7358aa5ed99c 100644
--- a/pkgs/by-name/em/emulationstation/package.nix
+++ b/pkgs/by-name/em/emulationstation/package.nix
@@ -1,33 +1,81 @@
-{ lib, stdenv, fetchFromGitHub, pkg-config, cmake, curl, boost, eigen
-, freeimage, freetype, libGLU, libGL, rapidjson, SDL2, alsa-lib
-, vlc }:
+{ lib
+, SDL2
+, alsa-lib
+, boost
+, cmake
+, curl
+, fetchFromGitHub
+, freeimage
+, freetype
+, libGL
+, libGLU
+, libvlc
+, pkg-config
+, rapidjson
+, stdenv
+}:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation (finalAttrs: {
   pname = "emulationstation";
   version = "2.11.2";
 
   src = fetchFromGitHub {
-    fetchSubmodules = true;
     owner = "RetroPie";
     repo = "EmulationStation";
-    rev = "cda7de687924c4c1ab83d6b0ceb88aa734fe6cfe";
+    rev = "v${finalAttrs.version}";
+    fetchSubmodules = true;
     hash = "sha256-J5h/578FVe4DXJx/AvpRnCIUpqBeFtmvFhUDYH5SErQ=";
   };
 
-  nativeBuildInputs = [ pkg-config cmake ];
-  buildInputs = [ alsa-lib boost curl eigen freeimage freetype libGLU libGL rapidjson SDL2 vlc ];
+  nativeBuildInputs = [
+    SDL2
+    cmake
+    pkg-config
+  ];
+
+  buildInputs = [
+    SDL2
+    alsa-lib
+    boost
+    curl
+    freeimage
+    freetype
+    libGL
+    libGLU
+    libvlc
+    rapidjson
+  ];
+
+  strictDeps = true;
+
+  cmakeFlags = [
+    (lib.cmakeBool "GL" true)
+  ];
 
   installPhase = ''
-    install -D ../emulationstation $out/bin/emulationstation
-    cp -r ../resources/ $out/bin/resources/
+    runHook preInstall
+
+    install -Dm755 ../emulationstation $out/bin/emulationstation
+    mkdir -p $out/share/emulationstation/
+    cp -r ../resources $out/share/emulationstation/
+
+    runHook preInstall
+  '';
+
+  # es-core/src/resources/ResourceManager.cpp: resources are searched at the
+  # same place of binaries.
+  postFixup = ''
+    pushd $out
+    ln -s $out/share/emulationstation/resources $out/bin/
+    popd
   '';
 
   meta = {
-    description = "A flexible emulator front-end supporting keyboardless navigation and custom system themes";
-    homepage = "https://emulationstation.org";
-    maintainers = [ lib.maintainers.edwtjo ];
-    license = lib.licenses.mit;
-    platforms = lib.platforms.linux;
+    homepage = "https://github.com/RetroPie/EmulationStation";
+    description = "A flexible emulator front-end supporting keyboardless navigation and custom system themes (forked by RetroPie)";
+    license = with lib.licenses; [ mit ];
     mainProgram = "emulationstation";
+    maintainers = with lib.maintainers; [ AndersonTorres edwtjo ];
+    platforms = lib.platforms.linux;
   };
-}
+})