Continue Blender Web parity task handoff

tools/web/check-action-armature-click-extrude-desktop.py

@@ -0,0 +1,134 @@
+#!/usr/bin/env python3
+import hashlib
+import json
+import os
+import pathlib
+import shutil
+import sys
+import tempfile
+
+import bpy
+
+
+ARMATURE_NAME = "WebGapArmatureClickExtrudeArmature"
+OBJECT_NAME = "WebGapArmatureClickExtrudeObject"
+BONE_NAME = "WebGapArmatureClickExtrudeBone"
+CHILD_NAME = f"{BONE_NAME}.001"
+CURSOR = [1.5, 2.0, 1.0]
+
+
+def vector(value):
+    return [round(float(component), 6) for component in value]
+
+
+def matrix_flat(value):
+    return [round(float(component), 6) for column in value for component in column]
+
+
+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.click_extrude fixture is missing")
+    bones = [
+        {
+            "name": bone.name,
+            "parent": bone.parent.name if bone.parent else None,
+            "head": vector(bone.head_local),
+            "tail": vector(bone.tail_local),
+            "headRaw": vector(bone.head),
+            "tailRaw": vector(bone.tail),
+            "useConnect": bool(bone.use_connect),
+            "matrix": matrix_flat(bone.matrix_local),
+        }
+        for bone in armature.bones
+    ]
+    bones.sort(key=lambda value: value["name"])
+    return {"object": OBJECT_NAME, "armature": ARMATURE_NAME, "cursor": vector(bpy.context.scene.cursor.location), "bones": bones}
+
+
+def run_operator(before):
+    names = {bone["name"] for bone in before["bones"]}
+    if names == {BONE_NAME, CHILD_NAME}:
+        already_extruded = True
+    elif names == {BONE_NAME}:
+        already_extruded = False
+    else:
+        raise RuntimeError(f"unexpected click_extrude input: {before}")
+    bpy.context.view_layer.objects.active = bpy.data.objects[OBJECT_NAME]
+    bpy.data.objects[OBJECT_NAME].select_set(True)
+    if bpy.context.object.mode != "EDIT":
+        bpy.ops.object.mode_set(mode="EDIT")
+    armature = bpy.data.armatures[ARMATURE_NAME]
+    edit_bone = armature.edit_bones[BONE_NAME]
+    edit_bone.select = True
+    edit_bone.select_tail = True
+    armature.edit_bones.active = edit_bone
+    poll = bool(bpy.ops.armature.click_extrude.poll())
+    if not poll:
+        raise RuntimeError("ARMATURE_OT_click_extrude poll failed")
+    if not already_extruded:
+        result = bpy.ops.armature.click_extrude()
+        if result != {"FINISHED"}:
+            raise RuntimeError(f"ARMATURE_OT_click_extrude returned {result}")
+    bpy.ops.object.mode_set(mode="OBJECT")
+    return poll, not already_extruded
+
+
+def main():
+    arguments = sys.argv[sys.argv.index("--") + 1 :]
+    if len(arguments) != 2:
+        raise SystemExit("usage: blender -b --factory-startup --python check-action-armature-click-extrude-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()
+    poll, changed = run_operator(before)
+    after = state_report()
+    if len(after["bones"]) != 2:
+        raise RuntimeError(f"click_extrude did not create exactly one child bone: {before} -> {after}")
+    parent = next((bone for bone in after["bones"] if bone["name"] == BONE_NAME), None)
+    child = next((bone for bone in after["bones"] if bone["name"] == CHILD_NAME), None)
+    if parent is None or child is None:
+        raise RuntimeError(f"click_extrude produced unexpected bones: {after}")
+    expected_head = parent["tail"]
+    if child["parent"] != BONE_NAME or not child["useConnect"] or child["head"] != expected_head or child["tail"] != CURSOR:
+        raise RuntimeError(f"click_extrude produced unexpected child: {after}")
+
+    descriptor, temporary = tempfile.mkstemp(prefix="m16-armature-click-extrude-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.click_extrude save/reopen drift: {after} != {reopened}")
+        shutil.copyfile(temporary_path, fixture)
+        report = {
+            "schemaVersion": 1,
+            "task": "M16-GAP-00220",
+            "operation": "ARMATURE_CLICK_EXTRUDE_DESKTOP",
+            "fixture": str(fixture),
+            "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(),
+            "before": before,
+            "after": reopened,
+            "alreadyExtruded": not changed,
+            "poll": poll,
+            "operatorStatus": "FINISHED" if changed else "SKIPPED_ALREADY_APPLIED",
+            "mainMutation": "CHILD_EXTRUDED_TO_CURSOR" if changed else "ALREADY_CHILD_EXTRUDED_TO_CURSOR",
+            "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-click-extrude-desktop-ok poll=true child=cursor saveReopen=exact")
+    finally:
+        temporary_path.unlink(missing_ok=True)
+
+
+if __name__ == "__main__":
+    try:
+        main()
+    except Exception as error:
+        print(f"armature-click-extrude-desktop-failed: {error}")
+        raise SystemExit(1)