完成软件更新功能

update_helper.py

@@ -18,6 +18,7 @@ import time
 
 APP_NAME = "CleanDesktopOrganizer"
 REQUEST_FILE = "update_request.json"
+LOG_FILE = "update.log"
 
 
 def _programdata_dir() -> str:
@@ -29,6 +30,16 @@ def _request_path() -> str:
     return os.path.join(_programdata_dir(), REQUEST_FILE)
 
 
+def _log(msg: str):
+    try:
+        os.makedirs(_programdata_dir(), exist_ok=True)
+        p = os.path.join(_programdata_dir(), LOG_FILE)
+        with open(p, "a", encoding="utf-8") as f:
+            f.write(msg.rstrip() + "\n")
+    except Exception:
+        pass
+
+
 def _read_request() -> dict:
     p = _request_path()
     with open(p, "r", encoding="utf-8") as f:
@@ -79,6 +90,7 @@ def main() -> int:
     except FileNotFoundError:
         return 0
     except Exception:
+        _log("ERROR: cannot read request file")
         return 2
 
     src = str(req.get("src") or "")
@@ -87,8 +99,11 @@ def main() -> int:
     restart = bool(req.get("restart", True))
 
     if not src or not dst:
+        _log(f"ERROR: bad request src={src!r} dst={dst!r} pid={pid}")
         return 3
 
+    _log(f"START: pid={pid} src={src} dst={dst}")
+
     # 等待主程序退出，最多 60 秒
     waited = 0.0
     while _pid_exists(pid) and waited < 60.0:
@@ -96,6 +111,7 @@ def main() -> int:
         waited += 0.5
 
     ok = _copy_with_retries(src, dst, retries=15)
+    _log(f"COPY: ok={ok}")
     try:
         os.remove(src)
     except Exception:
@@ -110,10 +126,13 @@ def main() -> int:
     if ok and restart:
         try:
             subprocess.Popen([dst], creationflags=subprocess.DETACHED_PROCESS | subprocess.CREATE_NO_WINDOW)
+            _log("RESTART: started")
         except Exception:
+            _log("RESTART: failed")
             pass
         return 0
 
+    _log("DONE: failed")
     return 4