fallout-ce: refactor into single file

pkgs/by-name/fa/fallout-ce/build.nix

@@ -1,90 +0,0 @@
-{
-  cmake,
-  fpattern,
-  lib,
-  SDL2,
-  stdenv,
-  writeShellScript,
-
-  extraBuildInputs ? [ ],
-  extraMeta,
-  patches,
-  pname,
-  version,
-  src,
-}:
-
-let
-  launcher = writeShellScript "${pname}" ''
-    set -eu
-    assetDir="''${XDG_DATA_HOME:-$HOME/.local/share}/${pname}"
-    [ -d "$assetDir" ] || mkdir -p "$assetDir"
-    cd "$assetDir"
-
-    notice=0 fault=0
-    requiredFiles=(master.dat critter.dat)
-    for f in "''${requiredFiles[@]}"; do
-      if [ ! -f "$f" ]; then
-        echo "Required file $f not found in $PWD, note the files are case-sensitive"
-        notice=1 fault=1
-      fi
-    done
-
-    if [ ! -d "data/sound/music" ]; then
-      echo "data/sound/music directory not found in $PWD. This may prevent in-game music from functioning."
-      notice=1
-    fi
-
-    if [ $notice -ne 0 ]; then
-      echo "Please reference the installation instructions at https://github.com/alexbatalov/fallout2-ce"
-    fi
-
-    if [ $fault -ne 0 ]; then
-      exit $fault;
-    fi
-
-    exec @out@/libexec/${pname} "$@"
-  '';
-in
-stdenv.mkDerivation {
-  inherit
-    pname
-    version
-    src
-    patches
-    ;
-
-  nativeBuildInputs = [ cmake ];
-  buildInputs = [ SDL2 ] ++ extraBuildInputs;
-  hardeningDisable = [ "format" ];
-  cmakeBuildType = "RelWithDebInfo";
-
-  postPatch = ''
-    substituteInPlace third_party/fpattern/CMakeLists.txt \
-      --replace "FetchContent_Populate" "#FetchContent_Populate" \
-      --replace "{fpattern_SOURCE_DIR}" "${fpattern}/include" \
-      --replace "$/nix/" "/nix/"
-  '';
-
-  installPhase = ''
-    runHook preInstall
-
-    install -D ${pname} $out/libexec/${pname}
-    install -D ${launcher} $out/bin/${pname}
-    substituteInPlace $out/bin/${pname} --subst-var out
-
-    runHook postInstall
-  '';
-
-  meta =
-    with lib;
-    {
-      license = licenses.sustainableUse;
-      maintainers = with maintainers; [
-        hughobrien
-        iedame
-      ];
-      platforms = platforms.linux;
-    }
-    // extraMeta;
-}

pkgs/by-name/fa/fallout-ce/package.nix

@@ -1,10 +1,48 @@
 {
-  callPackage,
+  cmake,
   fetchFromGitHub,
   fetchpatch2,
+  fpattern,
+  lib,
+  SDL2,
+  stdenv,
+  writeShellScript,
 }:
 
-callPackage ./build.nix rec {
+let
+  launcher = writeShellScript "fallout-ce" ''
+    set -eu
+    assetDir="''${XDG_DATA_HOME:-$HOME/.local/share}/fallout-ce"
+    [ -d "$assetDir" ] || mkdir -p "$assetDir"
+    cd "$assetDir"
+
+    notice=0 fault=0
+    requiredFiles=(master.dat critter.dat)
+    for f in "''${requiredFiles[@]}"; do
+      if [ ! -f "$f" ]; then
+        echo "Required file $f not found in $PWD, note the files are case-sensitive"
+        notice=1 fault=1
+      fi
+    done
+
+    if [ ! -d "data/sound/music" ]; then
+      echo "data/sound/music directory not found in $PWD. This may prevent in-game music from functioning."
+      notice=1
+    fi
+
+    if [ $notice -ne 0 ]; then
+      echo "Please reference the installation instructions at https://github.com/alexbatalov/fallout1-ce"
+    fi
+
+    if [ $fault -ne 0 ]; then
+      exit $fault;
+    fi
+
+    exec @out@/libexec/fallout-ce "$@"
+  '';
+in
+
+stdenv.mkDerivation rec {
   pname = "fallout-ce";
   version = "1.1.0";
 
@@ -23,8 +61,39 @@ callPackage ./build.nix rec {
     })
   ];
 
-  extraMeta = {
-    description = "Fully working re-implementation of Fallout, with the same original gameplay, engine bugfixes, and some quality of life improvements";
-    homepage = "https://github.com/alexbatalov/fallout1-ce";
-  };
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ SDL2 ];
+  hardeningDisable = [ "format" ];
+  cmakeBuildType = "RelWithDebInfo";
+
+  postPatch = ''
+    substituteInPlace third_party/fpattern/CMakeLists.txt \
+      --replace "FetchContent_Populate" "#FetchContent_Populate" \
+      --replace "{fpattern_SOURCE_DIR}" "${fpattern}/include" \
+      --replace "$/nix/" "/nix/"
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    install -D ${pname} $out/libexec/${pname}
+    install -D ${launcher} $out/bin/${pname}
+    substituteInPlace $out/bin/${pname} --subst-var out
+
+    runHook postInstall
+  '';
+
+   meta =
+    with lib;
+    {
+      license = licenses.sustainableUse;
+      description = "Fully working re-implementation of Fallout, with the same original gameplay, engine bugfixes, and some quality of life improvements";
+      homepage = "https://github.com/alexbatalov/fallout1-ce";
+      maintainers = with maintainers; [
+        hughobrien
+        iedame
+      ];
+      platforms = platforms.linux;
+    };
 }
+