Update pack_project script for Blender

lib/render_engines/blender_engine.py

@@ -61,7 +61,7 @@ class Blender(BaseRenderEngine):
         scene_info = None
         try:
             results = cls.run_python_script(project_path, os.path.join(os.path.dirname(os.path.realpath(__file__)),
-                                                                   'scripts', 'get_blender_info.py'), timeout=timeout)
+                                            'scripts', 'blender', 'get_file_info.py'), timeout=timeout)
             result_text = results.stdout.decode()
             for line in result_text.splitlines():
                 if line.startswith('SCENE_DATA:'):
@@ -75,15 +75,9 @@ class Blender(BaseRenderEngine):
     @classmethod
     def pack_project_file(cls, project_path, timeout=30):
         # Credit to L0Lock for pack script - https://blender.stackexchange.com/a/243935
-        pack_expression = "import bpy\n" \
-                      "bpy.ops.file.pack_all()\n" \
-                      "bpy.ops.file.make_paths_absolute()\n" \
-                      "myPath = bpy.data.filepath\n" \
-                      "myPath = str(myPath)\n" \
-                      "bpy.ops.wm.save_as_mainfile(filepath=myPath[:-6]+'_packed'+myPath[-6:])"
-
         try:
-            results = Blender.run_python_expression(project_path, pack_expression, timeout=timeout)
+            results = cls.run_python_script(project_path, os.path.join(os.path.dirname(os.path.realpath(__file__)),
+                                            'scripts', 'blender', 'pack_project.py'), timeout=timeout)
 
             result_text = results.stdout.decode()
             dir_name = os.path.dirname(project_path)

lib/render_engines/scripts/blender/pack_project.py

@@ -0,0 +1,41 @@
+import bpy
+import os
+import shutil
+import zipfile
+
+
+def zip_files(file_paths, output_zip_path):
+    # Create a new Zip file
+    with zipfile.ZipFile(output_zip_path, 'w') as myzip:
+        for file_path in file_paths:
+            # Add each file to the Zip file
+            myzip.write(file_path)
+
+
+# Get File path
+project_path = str(bpy.data.filepath)
+
+# Pack Files
+bpy.ops.file.pack_all()
+bpy.ops.file.make_paths_absolute()
+
+# Temp dir
+tmp_dir = os.path.join(os.path.dirname(project_path), 'tmp')
+asset_dir = os.path.join(tmp_dir, 'assets')
+os.makedirs(tmp_dir, exist_ok=True)
+
+try:
+    # Find images we could not pack - usually videos
+    for img in bpy.data.images:
+        if not img.packed_file and img.filepath and img.users:
+            os.makedirs(asset_dir, exist_ok=True)
+            shutil.copy2(img.filepath, os.path.join(asset_dir, os.path.basename(img.filepath)))
+            img.filepath = '//' + os.path.join('assets', os.path.basename(img.filepath))
+
+    # Save Output
+    bpy.ops.wm.save_as_mainfile(filepath=os.path.join(tmp_dir, os.path.basename(project_path)), compress=True)
+
+    zip_files([os.path.join(tmp_dir, os.path.basename(project_path)), asset_dir],
+              os.path.join(os.path.dirname(project_path), 'output.zip'))
+finally:
+    os.remove(tmp_dir)