feat: 保存失败的 Ticket ID 到 CSV，支持重试

batch_download.py

@@ -24,9 +24,12 @@ WORKERS     = 5
 
 SCRIPT      = os.path.join(os.path.dirname(__file__), "sap-c4c-AttachmentFolder.py")
 ERROR_LOG   = os.path.join(os.path.dirname(__file__), "error_log.txt")
+FAILED_CSV  = os.path.join(os.path.dirname(__file__), "failed_tickets.csv")
 DATASOURCE  = os.path.join(os.path.dirname(__file__), "datasource")
 
 print_lock = threading.Lock()
+failed_lock = threading.Lock()
+failed_ids = set()
 # ─────────────────────────────────────────────────────────────────────────────
 
 
@@ -67,6 +70,11 @@ def log_error(ticket_id, message):
     ts = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
     with open(ERROR_LOG, "a", encoding="utf-8") as f:
         f.write(f"[{ts}] Ticket {ticket_id}: {message}\n")
+    with failed_lock:
+        if ticket_id not in failed_ids:
+            failed_ids.add(ticket_id)
+            with open(FAILED_CSV, "a", encoding="utf-8", newline="") as f:
+                csv.writer(f).writerow([ticket_id])
 
 
 def run_ticket(ticket_id, index, total):
@@ -130,16 +138,19 @@ def run_ticket(ticket_id, index, total):
 
 
 def main():
+    global failed_ids
     print("读取 Ticket ID ...")
-    ids = get_ticket_ids(10)
+    ids = get_ticket_ids()
     if not ids:
         print("未找到任何 Ticket ID，请检查 datasource 目录")
         sys.exit(1)
 
     print(f"共 {len(ids)} 个 Ticket: {', '.join(ids)}")
 
-    # 清空/创建 error_log
+    # 清空/创建 error_log 和 failed_tickets.csv
     open(ERROR_LOG, "w").close()
+    open(FAILED_CSV, "w", encoding="utf-8", newline="").close()
+    failed_ids.clear()
 
     with ThreadPoolExecutor(max_workers=WORKERS) as executor:
         futures = {executor.submit(run_ticket, tid, i, len(ids)): tid
@@ -148,10 +159,12 @@ def main():
             future.result()  # 触发异常传播（已在 run_ticket 内处理）
 
     print("\n全部完成。")
-    if os.path.getsize(ERROR_LOG) > 0:
-        print(f"有错误，详见 {ERROR_LOG}")
+    if failed_ids:
+        print(f"失败 {len(failed_ids)} 个 Ticket，已保存到 {FAILED_CSV}")
+        if os.path.getsize(ERROR_LOG) > 0:
+            print(f"错误详情见 {ERROR_LOG}")
     else:
-        print("无错误。")
+        print("全部成功，无失败。")
 
 
 if __name__ == "__main__":