Fix missing assets in the source archive

The assets are required to build proper Blender release, so they can not be
skipped from packing.

The packing ignores the `working` directory as it seems to be big and sounds
that it is not needed for the release.

The assets are bundled under the `release/datafiles/assets` folder in the
blender sources. This is where they will reside after switch to the Git LFS.

Pull Request: blender/blender#106536

build_files/utils/make_source_archive.py

@@ -112,6 +112,7 @@ def create_manifest(
     print(f'Building manifest of files:  "{outpath}"...', end="", flush=True)
     with outpath.open("w", encoding="utf-8") as outfile:
         main_files_to_manifest(blender_srcdir, outfile)
+        assets_to_manifest(blender_srcdir, outfile)
         submodules_to_manifest(blender_srcdir, version, outfile)
 
         if packages_dir:
@@ -140,6 +141,18 @@ def submodules_to_manifest(
             print(path, file=outfile)
 
 
+def assets_to_manifest(blender_srcdir: Path, outfile: TextIO) -> None:
+    assert not blender_srcdir.is_absolute()
+
+    assets_dir = blender_srcdir.parent / "lib" / "assets"
+    for path in assets_dir.glob("*"):
+        if path.name == "working":
+            continue
+        if path.name in SKIP_NAMES:
+            continue
+        print(path, file=outfile)
+
+
 def packages_to_manifest(outfile: TextIO, packages_dir: Path) -> None:
     for path in packages_dir.glob("*"):
         if not path.is_file():
@@ -170,7 +183,9 @@ def create_tarball(
     command += [
         "--transform",
         f"s,^{blender_srcdir.name}/,blender-{version}/,g",
-        "--use-compress-program=xz -9",
+        "--transform",
+        f"s,^lib/assets/,blender-{version}/release/datafiles/assets/,g",
+        "--use-compress-program=xz -1",
         "--create",
         f"--file={tarball}",
         f"--files-from={manifest}",

source/creator/CMakeLists.txt

@@ -1473,7 +1473,11 @@ install(
 # -----------------------------------------------------------------------------
 # Bundle assets
 
-set(ASSET_BUNDLE_DIR ${CMAKE_SOURCE_DIR}/../lib/assets/publish/)
+set(ASSET_BUNDLE_DIR ${CMAKE_SOURCE_DIR}/release/datafiles/assets/publish/)
+
+if(NOT EXISTS "${ASSET_BUNDLE_DIR}")
+  set(ASSET_BUNDLE_DIR ${CMAKE_SOURCE_DIR}/../lib/assets/publish/)
+endif()
 
 if(EXISTS "${ASSET_BUNDLE_DIR}")
   install(