Add CMakeLists.txt to build extension

.github/workflows/bundles.yml

@@ -38,11 +38,6 @@ jobs:
           python-version: '3.11'
           cache: 'pip'
 
-      - name: Fetch build dependencies
-        run: |
-          pip install --upgrade pip
-          pip install tomlkit
-
       - uses: moguri/setup-blender@v1
         with:
           blender-version: '4.2.4'

.gitignore

@@ -8,3 +8,10 @@ release/*
 
 # For ignored files in bin/ subdirectory, see the .gitignore file in bin/
 wheels/
+
+# CMake various files
+build/
+CMakeCache.txt
+CMakeFiles/
+Makefile
+cmake_install.cmake

CMakeLists.txt

@@ -0,0 +1,46 @@
+cmake_minimum_required(VERSION 3.25)
+project(BlendLuxCore LANGUAGES NONE)
+
+file(MAKE_DIRECTORY build)
+
+function(validate_blender_version result blender)
+  execute_process(
+    COMMAND ${blender} --version
+    OUTPUT_VARIABLE blender_output
+  )
+  if (blender_output MATCHES "Blender ([0-9]+\.[0-9]+\.[0-9]+).*")
+    set(version ${CMAKE_MATCH_1})
+    message(STATUS "Blender version: ${version}")
+    if (${version} VERSION_LESS "4.2.0")
+      message(FATAL_ERROR "Bad Blender version - expected 4.2.0 or higher")
+      set(${result} FALSE PARENT_SCOPE)
+    else()
+      message(STATUS "Blender version OK")
+      set(${result} TRUE PARENT_SCOPE)
+    endif()
+  else()
+    message(FATAL_ERROR "Blender version: Not found")
+    set(${result} FALSE PARENT_SCOPE)
+  endif()
+endfunction()
+
+
+# Get BlendLuxCore version
+execute_process(
+  COMMAND python
+    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/blendluxcore_version.py
+    ${CMAKE_CURRENT_SOURCE_DIR}/blender_manifest.toml
+  OUTPUT_VARIABLE BLC_VERSION
+)
+
+find_program(BLENDER blender NAMES blender.exe VALIDATOR validate_blender_version NO_CACHE)
+
+# Add BlendLuxCore target
+add_custom_target(
+  extension ALL
+  COMMAND ${BLENDER}
+    --command extension build
+    --source-dir ${CMAKE_CURRENT_SOURCE_DIR}
+    --output-filepath ${CMAKE_CURRENT_BINARY_DIR}/build/BlendLuxCore-${BLC_VERSION}.zip
+  VERBATIM
+)

cmake/blendluxcore_version.py

@@ -0,0 +1,15 @@
+"""Retrieve BlendLuxCore version from blender_manifest.toml"""
+import tomllib
+import os
+from pathlib import Path
+import argparse
+
+
+parser = argparse.ArgumentParser()
+parser.add_argument("filepath", type=Path)
+args = parser.parse_args()
+
+with open(args.filepath, 'rb') as fp:
+    manifest = tomllib.load(fp)
+version = manifest['version']
+print(version, end='')