Rebuild local Blender WASM environment and recovery evidence

tools/web/generated/WBV2-P1-001.py

@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+import hashlib
+import json
+import pathlib
+import sys
+
+import bpy
+
+
+TEXT_NAME = "WBV2-P1-001-RuntimeReceipt"
+RECEIPT_ID = "workflow:stabilize_runtime_variants_and_source_receipts"
+
+
+def sha256_file(path):
+    return hashlib.sha256(path.read_bytes()).hexdigest()
+
+
+def runtime_receipt():
+    root = pathlib.Path(__file__).resolve().parents[3]
+    source_hash = sha256_file(root / "blender-5.2.0/source/blender/web_engine/web_engine_blend_reader.cpp")
+    manifest = json.loads((root / "web/app/public/engine-manifest.json").read_text(encoding="utf-8"))
+    variants = []
+    for variant in manifest["variants"]:
+        resources = {}
+        for role, resource in variant["resources"].items():
+            resource_path = root / "web/app/public" / resource["url"].lstrip("/")
+            resources[role] = {
+                "sha256": sha256_file(resource_path),
+                "url": resource["url"],
+            }
+        variants.append({
+            "id": variant["id"],
+            "memory": variant["memory"],
+            "resources": resources,
+        })
+    return {
+        "schemaVersion": 1,
+        "receiptId": RECEIPT_ID,
+        "releaseId": manifest["releaseId"],
+        "engineVersion": manifest["engineVersion"],
+        "sourceSha256": source_hash,
+        "buildSha256": sha256_file(root / "web/app/src/vendor/blender/web_engine.wasm"),
+        "variants": variants,
+        "fallback": {
+            "policy": "AUTO",
+            "deterministicOrder": ["pthread", "single"],
+            "reasonCode": "PTHREAD_INITIALIZATION_FAILED",
+        },
+        "session": {
+            "generation": 1,
+            "oneEnginePerSession": True,
+        },
+        "extensions": {"futureField": {"kind": "opaque", "value": "preserve-me"}},
+    }
+
+
+def main(output):
+    bpy.ops.wm.read_factory_settings(use_empty=True)
+    text = bpy.data.texts.new(TEXT_NAME)
+    text.write(json.dumps(runtime_receipt(), sort_keys=True, separators=(",", ":")))
+    text.use_fake_user = True
+    bpy.ops.wm.save_as_mainfile(filepath=str(output.resolve()), check_existing=False, compress=True)
+
+
+if __name__ == "__main__":
+    arguments = sys.argv[sys.argv.index("--") + 1 :]
+    if len(arguments) != 1:
+        raise SystemExit("usage: blender -b --factory-startup --python WBV2-P1-001.py -- OUTPUT")
+    main(pathlib.Path(arguments[0]))