Continue Blender Web parity task handoff

tools/web/check-action-keying-set-export-desktop.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+import hashlib
+import json
+import os
+import pathlib
+import sys
+import tempfile
+
+import bpy
+
+
+OBJECT_NAME = "WebGapAnimKeyingSetExportObject"
+ACTION_NAME = "WebGapAnimKeyingSetExportAction"
+KEYING_SET_NAME = "WebGapAnimKeyingSetExportSet"
+
+
+def action_report(obj):
+    action = obj.animation_data.action if obj and obj.animation_data else None
+    if action is None: return {"name": None, "channels": []}
+    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], "selected": [bool(key.select_control_point) for key in curve.keyframe_points]})
+    channels.sort(key=lambda value: (value["path"], value["index"])); return {"name": action.name, "channels": channels}
+
+
+def state_report():
+    scene = bpy.context.scene; obj = bpy.data.objects.get(OBJECT_NAME)
+    if obj is None: raise RuntimeError("keying_set_export fixture object is missing")
+    active = scene.keying_sets.active
+    return {"selected": bool(obj.select_get()), "active": bpy.context.view_layer.objects.active == obj, "value": round(float(obj["export_target"]), 6), "activeKeyingSet": active.bl_idname if active else None, "action": action_report(obj)}
+
+
+def main():
+    arguments = sys.argv[sys.argv.index("--") + 1 :]
+    if len(arguments) != 3: raise SystemExit("usage: blender -b --python check-action-keying-set-export-desktop.py -- FIXTURE REPORT EXPORT")
+    fixture, output, export_path = (pathlib.Path(value).resolve() for value in arguments)
+    bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False); before = state_report()
+    if before["selected"] is not True or before["active"] is not True or before["value"] != 3.0 or before["activeKeyingSet"] != KEYING_SET_NAME: raise RuntimeError(f"unexpected keying_set_export source state: {before}")
+    if before["action"]["name"] != ACTION_NAME or before["action"]["channels"][0]["frames"] != [1.0, 3.0, 5.0]: raise RuntimeError(f"unexpected keying_set_export source action: {before}")
+    export_path.parent.mkdir(parents=True, exist_ok=True)
+    poll = bool(bpy.ops.anim.keying_set_export.poll())
+    result = bpy.ops.anim.keying_set_export(filepath=str(export_path), filter_python=True) if poll else set()
+    if not poll or result != {"FINISHED"}: raise RuntimeError(f"unexpected ANIM_OT_keying_set_export result: poll={poll} result={result}")
+    if not export_path.exists() or export_path.stat().st_size == 0: raise RuntimeError("keying_set_export produced no script")
+    after = state_report()
+    if after != before: raise RuntimeError(f"keying_set_export mutated Main unexpectedly: {before} -> {after}")
+    descriptor, temporary = tempfile.mkstemp(prefix="m16-anim-keying-set-export-", suffix=".blend"); os.close(descriptor); temporary_path = pathlib.Path(temporary)
+    try:
+        bpy.ops.wm.save_as_mainfile(filepath=str(temporary_path), check_existing=False, compress=True); bpy.ops.wm.open_mainfile(filepath=str(temporary_path), load_ui=False); reopened = state_report()
+        if reopened != after: raise RuntimeError("anim.keying_set_export save/reopen drift")
+    finally:
+        temporary_path.unlink(missing_ok=True)
+    report = {"schemaVersion": 1, "task": "M16-GAP-00192", "operation": "ANIM_KEYING_SET_EXPORT_DESKTOP", "fixture": str(fixture), "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(), "before": before, "after": after, "poll": poll, "operatorStatus": "FINISHED", "mainMutation": "NONE_EXPORT_ONLY", "saveReopen": "EXACT", "exportedScript": {"path": str(export_path), "sha256": hashlib.sha256(export_path.read_bytes()).hexdigest(), "bytes": export_path.stat().st_size}, "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("anim-keying-set-export-desktop-ok poll=true status=FINISHED mainMutation=none_export_only saveReopen=exact export=written")
+    bpy.ops.wm.quit_blender()
+
+
+if __name__ == "__main__":
+    try: main()
+    except Exception as error: print(f"anim-keying-set-export-desktop-failed: {error}"); raise SystemExit(1)