diff --git a/sync.py b/sync.py
index a5baf34..09d8c89 100644
--- a/sync.py
+++ b/sync.py
@@ -62,25 +62,44 @@ async def main():
     for image in config.images:
         if len(image.tags) > 0:
             for tag in image.tags:
-                async def task() -> int | None:
-                    return (await docker_pull(f"{image.source}:{tag}")) \
-                        or (await docker_pull(f"{image.source}:{tag}")) \
-                        or (await docker_push(f"{image.target}:{tag}"))
+                # 定义任务函数
+                async def task():
+                    if r := await docker_pull(f"{image.source}:{tag}"):
+                        if r != 0:
+                            return r
+                    await docker_tag(f"{image.source}:{tag}", f"{image.target}:{tag}")
+                    if r := await docker_push(f"{image.target}:{tag}"):
+                        if r != 0:
+                            return r
+                    await docker_push(f"{image.target}:{tag}")
+                    if r := await docker_push(image.target):
+                        if r != 0:
+                            return r
+                    return 0
+                        
+                # 将协程对象添加到任务列表
                 tasks.append(limited_task(task))
         else:
-            async def task() -> int | None:
-                return (await docker_pull(image.source)) \
-                or (await docker_pull(image.source)) \
-                or (await docker_push(image.target))
+            async def task():
+                if r := await docker_pull(image.source):
+                    if r != 0:
+                        return r
+                if r:= await docker_tag(image.source, image.target):
+                    if r != 0:
+                        return r
+                if r := await docker_push(image.target):
+                    if r != 0:
+                        return r
+                return 0
             tasks.append(limited_task(task))
-    
+
     results = await asyncio.gather(*tasks)
-    print(tasks)
     failed_tasks = 0
     for result in results:
         if result is not None and result != 0:
             failed_tasks += 1
-            
+    if failed_tasks > 0:
+        raise Exception(f"{failed_tasks} tasks failed.")
     print(f"{len(results)} tasks completed. {len(results) - failed_tasks} succeed, {failed_tasks} failed.")
 
 if __name__ == "__main__":