Continue Blender Web parity task handoff

tools/web/check-action-armature-collection-move-desktop.py

@@ -0,0 +1,124 @@
+#!/usr/bin/env python3
+import hashlib
+import json
+import os
+import pathlib
+import shutil
+import sys
+import tempfile
+
+import bpy
+
+
+ARMATURE_NAME = "WebGapArmatureCollectionMoveArmature"
+OBJECT_NAME = "WebGapArmatureCollectionMoveObject"
+FIRST_COLLECTION = "WebGapArmatureCollectionMoveFirst"
+ACTIVE_COLLECTION = "WebGapArmatureCollectionMoveActive"
+LAST_COLLECTION = "WebGapArmatureCollectionMoveLast"
+FIRST_BONE = "WebGapArmatureCollectionMoveFirstBone"
+ACTIVE_BONE = "WebGapArmatureCollectionMoveActiveBone"
+LAST_BONE = "WebGapArmatureCollectionMoveLastBone"
+
+
+def state_report():
+    armature = bpy.data.armatures.get(ARMATURE_NAME)
+    obj = bpy.data.objects.get(OBJECT_NAME)
+    if armature is None or obj is None or obj.type != "ARMATURE" or obj.data != armature:
+        raise RuntimeError("armature.collection_move fixture is missing")
+    collections = []
+    for index, collection in enumerate(armature.collections):
+        collections.append({
+            "name": collection.name,
+            "index": index,
+            "bones": sorted(bone.name for bone in collection.bones),
+        })
+    return {
+        "object": OBJECT_NAME,
+        "armature": ARMATURE_NAME,
+        "activeIndex": armature.collections.active_index,
+        "collections": collections,
+    }
+
+
+def run_operator(already_moved):
+    obj = bpy.data.objects[OBJECT_NAME]
+    bpy.context.view_layer.objects.active = obj
+    obj.select_set(True)
+    armature = bpy.data.armatures[ARMATURE_NAME]
+    poll = bool(bpy.ops.armature.collection_move.poll())
+    if not poll:
+        raise RuntimeError("ARMATURE_OT_collection_move poll failed")
+    if not already_moved:
+        result = bpy.ops.armature.collection_move(direction="UP")
+        if result != {"FINISHED"}:
+            raise RuntimeError(f"ARMATURE_OT_collection_move returned {result}")
+    return poll, not already_moved
+
+
+def main():
+    arguments = sys.argv[sys.argv.index("--") + 1 :]
+    if len(arguments) != 2:
+        raise SystemExit("usage: blender -b --factory-startup --python check-action-armature-collection-move-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 = state_report()
+    before_names = [collection["name"] for collection in before["collections"]]
+    if before_names == [ACTIVE_COLLECTION, FIRST_COLLECTION, LAST_COLLECTION] and before["activeIndex"] == 0:
+        already_moved = True
+    elif before_names == [FIRST_COLLECTION, ACTIVE_COLLECTION, LAST_COLLECTION] and before["activeIndex"] == 1:
+        already_moved = False
+    else:
+        raise RuntimeError(f"unexpected collection_move input: {before}")
+    poll, changed = run_operator(already_moved)
+    after = state_report()
+    after_names = [collection["name"] for collection in after["collections"]]
+    if after_names != [ACTIVE_COLLECTION, FIRST_COLLECTION, LAST_COLLECTION] or after["activeIndex"] != 0:
+        raise RuntimeError(f"collection_move produced unexpected order: {after}")
+    expected_members = {
+        FIRST_COLLECTION: [FIRST_BONE],
+        ACTIVE_COLLECTION: [ACTIVE_BONE],
+        LAST_COLLECTION: [LAST_BONE],
+    }
+    actual_members = {collection["name"]: collection["bones"] for collection in after["collections"]}
+    if actual_members != expected_members:
+        raise RuntimeError(f"collection_move changed collection membership: {after}")
+
+    descriptor, temporary = tempfile.mkstemp(prefix="m16-armature-collection-move-reopen-", 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(f"armature.collection_move save/reopen drift: {after} != {reopened}")
+        shutil.copyfile(temporary_path, fixture)
+        report = {
+            "schemaVersion": 1,
+            "task": "M16-GAP-00225",
+            "operation": "ARMATURE_COLLECTION_MOVE_DESKTOP",
+            "fixture": str(fixture),
+            "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(),
+            "before": before,
+            "after": reopened,
+            "direction": "UP",
+            "alreadyMoved": already_moved,
+            "poll": poll,
+            "operatorStatus": "FINISHED" if changed else "SKIPPED_ALREADY_APPLIED",
+            "mainMutation": "ACTIVE_COLLECTION_MOVED_UP" if changed else "ACTIVE_COLLECTION_ALREADY_MOVED_UP",
+            "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("armature-collection-move-desktop-ok poll=true direction=up activeIndex=0 saveReopen=exact")
+    finally:
+        temporary_path.unlink(missing_ok=True)
+
+
+if __name__ == "__main__":
+    try:
+        main()
+    except Exception as error:
+        print(f"armature-collection-move-desktop-failed: {error}")
+        raise SystemExit(1)