ppsspp: refactor

1 files changed, 70 insertions, 65 deletions

diff --git a/pkgs/applications/emulators/ppsspp/default.nix b/pkgs/applications/emulators/ppsspp/default.nix
index b300dc08268a..e730131ed6ff 100644
--- a/pkgs/applications/emulators/ppsspp/default.nix
+++ b/pkgs/applications/emulators/ppsspp/default.nix
@@ -12,89 +12,92 @@
 , makeWrapper
 , pkg-config
 , python3
-, qtbase ? null
-, qtmultimedia ? null
+, qtbase
+, qtmultimedia
 , snappy
 , vulkan-loader
 , wayland
-, wrapQtAppsHook ? null
+, wrapQtAppsHook
 , zlib
+, enableQt ? false
 , enableVulkan ? true
 , forceWayland ? false
 }:
 
 let
-  enableQt = (qtbase != null);
-  frontend = if enableQt then "Qt" else "SDL and headless";
-  vulkanPath = lib.makeLibraryPath [ vulkan-loader ];
-
   # experimental, see https://github.com/hrydgard/ppsspp/issues/13845
   vulkanWayland = enableVulkan && forceWayland;
 in
-  # Only SDL front end needs to specify whether to use Wayland
-  assert forceWayland -> !enableQt;
-  stdenv.mkDerivation (finalAttrs: {
-    pname = "ppsspp"
-      + lib.optionalString enableQt "-qt"
-      + lib.optionalString (!enableQt) "-sdl"
-      + lib.optionalString forceWayland "-wayland";
-    version = "1.14.4";
+# Only SDL frontend needs to specify whether to use Wayland
+assert forceWayland -> !enableQt;
+stdenv.mkDerivation (self: {
+  pname = "ppsspp"
+          + lib.optionalString enableQt "-qt"
+          + lib.optionalString (!enableQt) "-sdl"
+          + lib.optionalString forceWayland "-wayland";
+  version = "1.14.4";
 
-    src = fetchFromGitHub {
-      owner = "hrydgard";
-      repo = "ppsspp";
-      rev = "v${finalAttrs.version}";
-      fetchSubmodules = true;
-      sha256 = "sha256-7xzhN8JIQD4LZg8sQ8rLNYZrW0nCNBfZFgzoKdoWbKc=";
-    };
+  src = fetchFromGitHub {
+    owner = "hrydgard";
+    repo = "ppsspp";
+    rev = "v${self.version}";
+    fetchSubmodules = true;
+    sha256 = "sha256-7xzhN8JIQD4LZg8sQ8rLNYZrW0nCNBfZFgzoKdoWbKc=";
+  };
 
-    postPatch = ''
-      substituteInPlace git-version.cmake --replace unknown ${finalAttrs.src.rev}
-      substituteInPlace UI/NativeApp.cpp --replace /usr/share $out/share
-    '';
+  postPatch = ''
+    substituteInPlace git-version.cmake --replace unknown ${self.src.rev}
+    substituteInPlace UI/NativeApp.cpp --replace /usr/share $out/share
+  '';
 
-    nativeBuildInputs = [
-      cmake
-      copyDesktopItems
-      makeWrapper
-      pkg-config
-      python3
-      wrapQtAppsHook
-    ];
+  nativeBuildInputs = [
+    cmake
+    copyDesktopItems
+    makeWrapper
+    pkg-config
+    python3
+  ] ++ lib.optional enableQt wrapQtAppsHook;
 
-    buildInputs = [
-      SDL2
-      ffmpeg
-      (glew.override { enableEGL = forceWayland; })
-      libzip
-      qtbase
-      qtmultimedia
-      snappy
-      zlib
-    ] ++ lib.optional enableVulkan vulkan-loader
-      ++ lib.optionals vulkanWayland [ wayland libffi ];
+  buildInputs = [
+    SDL2
+    ffmpeg
+    (glew.override { enableEGL = forceWayland; })
+    libzip
+    snappy
+    zlib
+  ] ++ lib.optionals enableQt [
+    qtbase
+    qtmultimedia
+  ] ++ lib.optional enableVulkan vulkan-loader
+  ++ lib.optionals vulkanWayland [ wayland libffi ];
 
-    cmakeFlags = [
-      "-DHEADLESS=${if enableQt then "OFF" else "ON"}"
-      "-DOpenGL_GL_PREFERENCE=GLVND"
-      "-DUSE_SYSTEM_FFMPEG=ON"
-      "-DUSE_SYSTEM_LIBZIP=ON"
-      "-DUSE_SYSTEM_SNAPPY=ON"
-      "-DUSE_WAYLAND_WSI=${if vulkanWayland then "ON" else "OFF"}"
-      "-DUSING_QT_UI=${if enableQt then "ON" else "OFF"}"
-    ];
+  cmakeFlags = [
+    "-DHEADLESS=${if enableQt then "OFF" else "ON"}"
+    "-DOpenGL_GL_PREFERENCE=GLVND"
+    "-DUSE_SYSTEM_FFMPEG=ON"
+    "-DUSE_SYSTEM_LIBZIP=ON"
+    "-DUSE_SYSTEM_SNAPPY=ON"
+    "-DUSE_WAYLAND_WSI=${if vulkanWayland then "ON" else "OFF"}"
+    "-DUSING_QT_UI=${if enableQt then "ON" else "OFF"}"
+  ];
 
-    desktopItems = [(makeDesktopItem {
+  desktopItems = [
+    (makeDesktopItem {
       desktopName = "PPSSPP";
       name = "ppsspp";
       exec = "ppsspp";
       icon = "ppsspp";
       comment = "Play PSP games on your computer";
       categories = [ "Game" "Emulator" ];
-    })];
+    })
+  ];
 
-    installPhase = ''
+  installPhase = let
+    vulkanPath = lib.makeLibraryPath [ vulkan-loader ];
+  in
+    ''
       runHook preInstall
+
       mkdir -p $out/share/{applications,ppsspp}
     '' + (if enableQt then ''
       install -Dm555 PPSSPPQt $out/bin/ppsspp
@@ -108,14 +111,16 @@ in
         --prefix LD_LIBRARY_PATH : ${vulkanPath} \
     '' + "\n" + ''
       mv assets $out/share/ppsspp
+
       runHook postInstall
     '';
 
-    meta = with lib; {
-      homepage = "https://www.ppsspp.org/";
-      description = "A HLE Playstation Portable emulator, written in C++ (${frontend})";
-      license = licenses.gpl2Plus;
-      maintainers = with maintainers; [ AndersonTorres ];
-      platforms = platforms.linux;
-    };
-  })
+  meta = with lib; {
+    homepage = "https://www.ppsspp.org/";
+    description = "A HLE Playstation Portable emulator, written in C++ ("
+                  ++ (if enableQt then "Qt" else "SDL + headless") ++ ")";
+    license = lib.licenses.gpl2Plus;
+    maintainers = [ lib.maintainers.AndersonTorres ];
+    platforms = lib.platforms.linux;
+  };
+})