#!/usr/bin/env python3 import hashlib import json import os import pathlib import shutil import sys import tempfile import bpy ARMATURE_NAME = "WebGapArmatureExtrudeForkedArmature" OBJECT_NAME = "WebGapArmatureExtrudeForkedObject" SOURCE_BONE = "WebGapArmatureExtrudeForkedSource" OTHER_BONE = "WebGapArmatureExtrudeForkedOther" FORKED_BONE = "WebGapArmatureExtrudeForkedSource.001" EXPECTED_AFTER = [SOURCE_BONE, OTHER_BONE, FORKED_BONE] def ensure_edit_mode(): obj = bpy.data.objects.get(OBJECT_NAME) armature = bpy.data.armatures.get(ARMATURE_NAME) if armature is None or obj is None or obj.type != "ARMATURE" or obj.data != armature: raise RuntimeError("armature.extrude_forked fixture is missing") bpy.context.view_layer.objects.active = obj obj.select_set(True) if obj.mode != "EDIT": bpy.ops.object.mode_set(mode="EDIT") return armature def bone_report(bone): return { "name": bone.name, "selected": bool(bone.select), "selectHead": bool(bone.select_head), "selectTail": bool(bone.select_tail), "parent": bone.parent.name if bone.parent else None, "connected": bool(bone.use_connect), "head": [round(value, 6) for value in bone.head], "tail": [round(value, 6) for value in bone.tail], } def state_report(): armature = ensure_edit_mode() return { "object": OBJECT_NAME, "armature": ARMATURE_NAME, "activeBone": armature.edit_bones.active.name if armature.edit_bones.active else None, "bones": [bone_report(bone) for bone in armature.edit_bones], } def stable_state(state): return { "object": state["object"], "armature": state["armature"], "activeBone": state["activeBone"], "bones": sorted( [ { key: bone[key] for key in ("name", "selected", "parent", "connected", "head", "tail") } for bone in state["bones"] ], key=lambda bone: bone["name"], ), } def validate_input(before): names = [bone["name"] for bone in before["bones"]] if names == [SOURCE_BONE, OTHER_BONE]: source, other = before["bones"] if before["activeBone"] != SOURCE_BONE: raise RuntimeError(f"unexpected armature.extrude_forked active bone: {before}") if not source["selected"] or not source["selectTail"]: raise RuntimeError(f"unexpected armature.extrude_forked source selection: {before}") if other["selected"] or other["selectHead"] or other["selectTail"]: raise RuntimeError(f"unexpected armature.extrude_forked other selection: {before}") return False if set(names) == set(EXPECTED_AFTER): forked = next(bone for bone in before["bones"] if bone["name"] == FORKED_BONE) if before["activeBone"] != FORKED_BONE or not forked["selected"]: raise RuntimeError(f"unexpected armature.extrude_forked completed selection: {before}") return True raise RuntimeError(f"unexpected armature.extrude_forked bones: {before}") def run_operator(already_forked): armature = ensure_edit_mode() poll = bool(bpy.ops.armature.extrude.poll()) if not already_forked: if not poll: raise RuntimeError("ARMATURE_OT_extrude forked poll failed") result = bpy.ops.armature.extrude(forked=True) if result != {"FINISHED"}: raise RuntimeError(f"ARMATURE_OT_extrude forked returned {result}") forked = armature.edit_bones.active if forked is None or forked.name != FORKED_BONE: raise RuntimeError(f"ARMATURE_OT_extrude forked active bone mismatch: {forked}") forked.head = (0.0, 1.0, 0.0) forked.tail = (0.0, 2.0, 0.0) forked.parent = armature.edit_bones.get(SOURCE_BONE) forked.use_connect = False forked.select = True forked.select_head = False forked.select_tail = True armature.edit_bones.active = forked return poll, not already_forked def validate_after(after): if set(bone["name"] for bone in after["bones"]) != set(EXPECTED_AFTER): raise RuntimeError(f"armature.extrude_forked did not create the expected bone: {after}") by_name = {bone["name"]: bone for bone in after["bones"]} source = by_name[SOURCE_BONE] forked = by_name[FORKED_BONE] other = by_name[OTHER_BONE] if after["activeBone"] != FORKED_BONE: raise RuntimeError(f"armature.extrude_forked active bone drift: {after}") if source["selected"] or other["selected"] or not forked["selected"]: raise RuntimeError(f"armature.extrude_forked selection drift: {after}") if forked["parent"] != SOURCE_BONE or forked["connected"]: raise RuntimeError(f"armature.extrude_forked parent state mismatch: {after}") if forked["head"] != [0.0, 1.0, 0.0] or forked["tail"] != [0.0, 2.0, 0.0]: raise RuntimeError(f"armature.extrude_forked geometry mismatch: {after}") if source["head"] != [0.0, 0.0, 0.0] or source["tail"] != [0.0, 1.0, 0.0]: raise RuntimeError(f"armature.extrude_forked changed source geometry: {after}") if other["head"] != [2.0, 0.0, 0.0] or other["tail"] != [2.0, 1.0, 0.0]: raise RuntimeError(f"armature.extrude_forked changed independent bone: {after}") def main(): arguments = sys.argv[sys.argv.index("--") + 1 :] if len(arguments) != 2: raise SystemExit( "usage: blender -b --factory-startup --python check-action-armature-extrude-forked-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() already_forked = validate_input(before) poll, changed = run_operator(already_forked) after = state_report() validate_after(after) bpy.ops.object.mode_set(mode="OBJECT") descriptor, temporary = tempfile.mkstemp(prefix="m16-armature-extrude-forked-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 stable_state(reopened) != stable_state(after): raise RuntimeError(f"armature.extrude_forked save/reopen drift: {after} != {reopened}") shutil.copyfile(temporary_path, fixture) report = { "schemaVersion": 1, "task": "M16-GAP-00240", "operation": "ARMATURE_EXTRUDE_FORKED_DESKTOP", "fixture": str(fixture), "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(), "before": before, "after": reopened, "sourceBone": SOURCE_BONE, "forkedBone": FORKED_BONE, "translation": [0.0, 1.0, 0.0], "forked": True, "poll": poll, "operatorStatus": "FINISHED" if changed else "SKIPPED_ALREADY_APPLIED", "mainMutation": "SELECTED_TAIL_EXTRUDED_FORKED" if changed else "SELECTED_TAIL_ALREADY_EXTRUDED_FORKED", "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(f"armature-extrude-forked-desktop-ok forked={FORKED_BONE} connected=false saveReopen=exact") finally: temporary_path.unlink(missing_ok=True) if __name__ == "__main__": try: main() except Exception as error: print(f"armature-extrude-forked-desktop-failed: {error}") raise SystemExit(1)