feat(python): 在 app 进程里起 40250 脚本层（2P step 4，macOS）

移植 UserInterface/RunMainScript 到 platform/ScriptLib/PythonBoot：40250 把 CPythonLauncher 放在 Main() 的栈上，这里进程归 Godot，launcher 必须活过创建它的那次调用，所以拆成 Start / RunMainScript / RunLine / Stop。37 个模块初始化函数里只调已移植的 initpack()，system.py 因此仍停在第一个 import。脚本报错能传回 GDScript，靠的是 platform/EterBase/Debug.cpp 实现 LogBox/LogBoxf： ScriptLib 的 Traceback() 在 PyErr_Fetch 之后只剩这一条路，LastLogBoxMessage() （platform/EterBase/LogBox.h）是 traceback 唯一幸存的地方。 GDScript 侧新增 Metin2PythonHost（python_host_node.{h,cpp}）——唯一同时认识 godot-cpp 和 port 树的单元，PythonBoot 保持 godot-free。检查脚本 python_host_check.gd 分两段：解释器 + 标准库那段不需要 40250 的 pack，哪个平台都能跑；system.py 那段需要 pack，没有就跳过。桌面入口 python_host_test.gd，真机入口 MT_TEST_MODE=python（导出模板不接受 --script）。验证（macOS）：标准库可 import、codec 注册表可用、sys.path 非空，system.py 停在和 ctest port.python_launcher 完全相同的 ImportError: No module named app； ctest 27/27。Android/iOS 进程内未做，正式启动路径仍不起解释器（2V0）。 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-23 10:43:10 +09:00
parent e926759ff5
commit 0a1cdf3d3e
16 changed files with 638 additions and 76 deletions
@@ -0,0 +1,69 @@
+{
+ "reference": "EterBase/Debug.cpp",
+ "reference_sha256": "af7a6cba9e6d83511a40f596629f85f1b770b510fc0db1d9cbefcec88ecb15ec",
+ "priority": "P4",
+ "contracts": [],
+ "functions": {
+  "SetLogLevel": {
+   "status": "TODO"
+  },
+  "Log": {
+   "status": "TODO"
+  },
+  "Logn": {
+   "status": "TODO"
+  },
+  "Logf": {
+   "status": "TODO"
+  },
+  "Lognf": {
+   "status": "TODO"
+  },
+  "Trace": {
+   "status": "TODO"
+  },
+  "Tracen": {
+   "status": "TODO"
+  },
+  "Tracenf": {
+   "status": "TODO"
+  },
+  "Tracef": {
+   "status": "TODO"
+  },
+  "TraceError": {
+   "status": "TODO"
+  },
+  "TraceErrorWithoutEnter": {
+   "status": "TODO"
+  },
+  "LogBoxf": {
+   "impl": [
+    "extension/src/platform/EterBase/Debug.cpp:LogBoxf"
+   ],
+   "status": "ADAPTED",
+   "note": "verbatim apart from two PORT fixes the 40250 build did not need: va_end (40250 leaks the va_list) and terminating szBuf, which _vsnprintf does not do on truncation.",
+   "test": "project/python_host_check.gd — system.py's ImportError reaches GDScript through it"
+  },
+  "LogBox": {
+   "impl": [
+    "extension/src/platform/EterBase/Debug.cpp:LogBox"
+   ],
+   "status": "ADAPTED",
+   "note": "40250 pops a MessageBox on g_PopupHwnd and Tracen()s the text. No window here: the text goes to stderr and is kept in LastLogBoxMessage() (extension/src/platform/EterBase/LogBox.h), because ScriptLib/PythonLauncher.cpp Traceback() reports every failed script line through LogBoxf after PyErr_Fetch has already cleared the exception — this is the only place a traceback survives.",
+   "test": "project/python_host_check.gd — system.py's ImportError reaches GDScript through it"
+  },
+  "LogFile": {
+   "status": "TODO"
+  },
+  "LogFilef": {
+   "status": "TODO"
+  },
+  "OpenLogFile": {
+   "status": "TODO"
+  },
+  "OpenConsoleWindow": {
+   "status": "TODO"
+  }
+ }
+}