Rebuild local Blender WASM environment and recovery evidence

tools/web/check-wbv2-p3-002-desktop.py

@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+import hashlib
+import json
+import os
+import pathlib
+import sys
+import tempfile
+
+import bpy
+
+
+def action_report():
+    cube = bpy.data.objects.get("WBV2P3002AnimatedCube")
+    if cube is None or cube.animation_data is None or cube.animation_data.action is None:
+        raise RuntimeError("ANIMATION_INVALID: animated cube Action is missing")
+    action = cube.animation_data.action
+    channels = []
+    for layer in action.layers:
+        for strip in layer.strips:
+            for bag in strip.channelbags:
+                for curve in bag.fcurves:
+                    channels.append({
+                        "path": curve.data_path,
+                        "index": curve.array_index,
+                        "frames": [round(float(key.co.x), 6) for key in curve.keyframe_points],
+                        "values": [round(float(key.co.y), 6) for key in curve.keyframe_points],
+                        "interpolation": [key.interpolation for key in curve.keyframe_points],
+                    })
+    channels.sort(key=lambda value: (value["path"], value["index"]))
+    return {"id": "action:" + action.name + ":object:" + cube.name, "name": action.name, "targetId": "object:" + cube.name, "channels": channels}
+
+
+def main():
+    arguments = sys.argv[sys.argv.index("--") + 1 :]
+    if len(arguments) != 2:
+        raise SystemExit("usage: blender -b --python check-wbv2-p3-002-desktop.py -- FIXTURE REPORT")
+    fixture, output = (pathlib.Path(value).resolve() for value in arguments)
+    bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False)
+    before = action_report()
+    if len(before["channels"]) != 9 or any(channel["frames"] != [1.0, 10.0, 20.0] for channel in before["channels"]):
+        raise RuntimeError(f"ANIMATION_INVALID: unexpected TRS channels: {before}")
+    descriptor, temporary = tempfile.mkstemp(prefix="wbv2-p3-002-reopen-", suffix=".blend", dir=fixture.parent)
+    os.close(descriptor)
+    try:
+        bpy.ops.wm.save_as_mainfile(filepath=temporary, check_existing=False, compress=True)
+        bpy.ops.wm.open_mainfile(filepath=temporary, load_ui=False)
+        after = action_report()
+    finally:
+        pathlib.Path(temporary).unlink(missing_ok=True)
+    if before != after:
+        raise RuntimeError(f"ANIMATION_INVALID: desktop save/reopen drift: {before} != {after}")
+    report = {
+        "schemaVersion": 1,
+        "task": "WBV2-P3-002",
+        "operation": "ANIMATION_TRS_ACTION_DESKTOP",
+        "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(),
+        "action": 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("wbv2-p3-002-desktop-ok action=%s channels=%d frames=1,10,20 saveReopen=exact" % (after["id"], len(after["channels"])))
+
+
+if __name__ == "__main__":
+    main()