Rebuild local Blender WASM environment and recovery evidence

tools/web/check-wbv2-p3-005-desktop.py

@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+import hashlib
+import json
+import pathlib
+import sys
+
+import bpy
+
+
+LIBRARY_NAME = "WBV2P3005Library.blend"
+LINKED_OBJECT = "WBV2P3005LinkedObject"
+APPEND_OBJECT = "WBV2P3005AppendObject"
+
+
+def report_state() -> dict:
+    libraries = list(bpy.data.libraries)
+    if len(libraries) != 1:
+        raise RuntimeError(f"expected one external library, found {len(libraries)}")
+    library = libraries[0]
+    linked = bpy.data.objects.get(LINKED_OBJECT)
+    if linked is None or linked.library is None:
+        raise RuntimeError("linked object ownership was not retained")
+    return {
+        "library": {
+            "name": library.name,
+            "sourcePath": library.filepath,
+            "packed": library.packed_file is not None,
+            "readOnly": True,
+            "dependencyIds": [],
+        },
+        "linked": {
+            "name": linked.name,
+            "library": linked.library.name,
+            "readOnly": linked.library is not None,
+            "override": linked.override_library is not None,
+        },
+    }
+
+
+def source_state(source: pathlib.Path) -> dict:
+    bpy.ops.wm.open_mainfile(filepath=str(source), load_ui=False)
+    appended = bpy.data.objects.get(APPEND_OBJECT)
+    if appended is None or appended.data is None or len(appended.data.materials) != 1:
+        raise RuntimeError("append source closure is incomplete")
+    material = appended.data.materials[0]
+    image = next((node.image for node in material.node_tree.nodes if node.type == "TEX_IMAGE" and node.image), None)
+    if image is None or image.packed_file is None:
+        raise RuntimeError("append source image is not packed")
+    return {
+        "object": appended.name,
+        "mesh": appended.data.name,
+        "material": material.name,
+        "image": image.name,
+        "imagePacked": True,
+    }
+
+
+def main() -> None:
+    arguments = sys.argv[sys.argv.index("--") + 1:]
+    if len(arguments) != 3:
+        raise SystemExit("usage: blender -b --python check-wbv2-p3-005-desktop.py -- FIXTURE SOURCE REPORT")
+    fixture, source, output = (pathlib.Path(value).resolve() for value in arguments)
+    bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False)
+    before = report_state()
+    source_closure = source_state(source)
+    bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False)
+    reopen_before = report_state()
+    if before != reopen_before:
+        raise RuntimeError(f"fixture reload drift: {before} != {reopen_before}")
+    temporary = fixture.with_name("wbv2-p3-005-reopen.blend")
+    try:
+        bpy.ops.wm.save_as_mainfile(filepath=str(temporary), check_existing=False, compress=True)
+        bpy.ops.wm.open_mainfile(filepath=str(temporary), load_ui=False)
+        after = report_state()
+    finally:
+        temporary.unlink(missing_ok=True)
+    if before != after:
+        raise RuntimeError(f"library save/reopen drift: {before} != {after}")
+    report = {
+        "schemaVersion": 1,
+        "task": "WBV2-P3-005",
+        "operation": "ASSET_LIBRARY_OWNERSHIP_DESKTOP",
+        "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(),
+        "sourceSha256": hashlib.sha256(source.read_bytes()).hexdigest(),
+        "sourceClosure": source_closure,
+        "state": after,
+        "saveReopen": "EXACT",
+        "blenderVersion": bpy.app.version_string,
+    }
+    output.parent.mkdir(parents=True, exist_ok=True)
+    output.write_text(json.dumps(report, indent=2, sort_keys=True) + "\n", encoding="utf-8")
+    print(f"wbv2-p3-005-desktop-ok library={after['library']['name']} linked={after['linked']['name']} appendImage=packed saveReopen=exact")
+
+
+if __name__ == "__main__":
+    main()