blender-with-packages: add wrapper to load python packages with blender

Signed-off-by: lucasew <lucas59356@gmail.com>

pkgs/applications/misc/blender/wrapper.nix

@@ -0,0 +1,39 @@
+{ stdenv
+, lib
+, blender
+, makeWrapper
+, python39Packages
+}:
+{ name ? "wrapped"
+, packages ? []
+}:
+stdenv.mkDerivation {
+  pname = "blender-${name}";
+  inherit (blender) version;
+  src = blender;
+
+  nativeBuildInputs = [ python39Packages.wrapPython makeWrapper ];
+  installPhase = ''
+    mkdir $out/{share/applications,bin} -p
+    sed 's/Exec=blender/Exec=blender-${name}/g' $src/share/applications/blender.desktop > $out/share/applications/blender-${name}.desktop
+    cp -r $src/share/blender $out/share
+    cp -r $src/share/doc $out/share
+    cp -r $src/share/icons $out/share
+
+    buildPythonPath "$pythonPath"
+
+    echo '#!/usr/bin/env bash ' >> $out/bin/blender-${name}
+    for p in $program_PATH; do
+      echo "export PATH=\$PATH:$p " >> $out/bin/blender-${name}
+    done
+    for p in $program_PYTHONPATH; do
+      echo "export PYTHONPATH=\$PYTHONPATH:$p " >> $out/bin/blender-${name}
+    done
+    echo 'exec ${blender}/bin/blender "$@"' >> $out/bin/blender-${name}
+    chmod +x $out/bin/blender-${name}
+  '';
+
+  pythonPath = packages;
+
+  meta = blender.meta;
+}

pkgs/top-level/all-packages.nix

@@ -24484,6 +24484,8 @@ with pkgs;
     inherit (darwin.apple_sdk.frameworks) Cocoa CoreGraphics ForceFeedback OpenAL OpenGL;
   };
 
+  blender-with-packages = callPackage ../applications/misc/blender/wrapper.nix {};
+
   blflash = callPackage ../tools/misc/blflash { };
 
   blogc = callPackage ../applications/misc/blogc { };