Continue Blender Web parity task handoff

tools/web/generated/M16-GAP-00203.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+import pathlib
+import sys
+
+import bpy
+
+
+OLD_ACTION = "WebGapAnimReplaceNewOldAction"
+
+
+def make_object(name, action, values):
+    mesh = bpy.data.meshes.new(f"{name}Mesh")
+    mesh.from_pydata(
+        [(-1.0, -1.0, 0.0), (1.0, -1.0, 0.0), (1.0, 1.0, 0.0), (-1.0, 1.0, 0.0)],
+        [],
+        [(0, 1, 2, 3)],
+    )
+    obj = bpy.data.objects.new(name, mesh)
+    bpy.context.scene.collection.objects.link(obj)
+    obj.animation_data_create()
+    obj.animation_data.action = action
+    for frame, value in zip((1, 3, 5), values):
+        obj["replace_target"] = value
+        obj.keyframe_insert(data_path='["replace_target"]', frame=frame)
+    return obj
+
+
+def main():
+    arguments = sys.argv[sys.argv.index("--") + 1 :]
+    if len(arguments) != 1:
+        raise SystemExit("usage: blender -b --factory-startup --python M16-GAP-00203.py -- OUTPUT")
+    bpy.ops.wm.read_factory_settings(use_empty=True)
+    old_action = bpy.data.actions.new(OLD_ACTION)
+    old_a = make_object("WebGapAnimReplaceNewOldA", old_action, (1.0, 3.0, 5.0))
+    old_b = make_object("WebGapAnimReplaceNewOldB", old_action, (2.0, 4.0, 6.0))
+    old_action.use_fake_user = True
+    bpy.context.view_layer.objects.active = old_a
+    old_a.select_set(True)
+    old_b.select_set(False)
+    bpy.context.scene.frame_start = 1
+    bpy.context.scene.frame_end = 5
+    bpy.context.scene.frame_set(3)
+    bpy.ops.wm.save_as_mainfile(
+        filepath=str(pathlib.Path(arguments[0]).resolve()), check_existing=False, compress=True
+    )
+
+
+if __name__ == "__main__":
+    main()