英文:
`no such file or directory` with `os.Remove` inside go routine
问题
我使用Cobra框架为我的CLI应用程序添加了一个新的命令。该命令用于启动一个接受socket连接的TCP服务器。它接收一个有效路径（absolute path）指向一个文件/目录，并尝试删除它。以下是该命令的代码：
package cmdimport ("bufio""fmt""net""os""github.com/spf13/cobra""wpgenius.io/util")var cachePurgerCmd = &cobra.Command{Use: "cache-purger",Short: "Listen for request to purge NGINX page cache",Run: func(cmd *cobra.Command, args []string) {dstream, err := net.Listen("tcp", ":9876")if err != nil {util.HandleError(err, "Can not start listener..")return}fmt.Println("Listening for purge requests...")defer dstream.Close()for {con, err := dstream.Accept()if err != nil {util.HandleError(err, "Can not accept connection")os.Exit(1)}go handleRequest(con)}},}func handleRequest(con net.Conn) {path, err := bufio.NewReader(con).ReadString('\n')if err != nil {return}defer con.Close()err = os.Remove(path)if err != nil {con.Write([]byte("ERROR"))fmt.Println(err)util.HandleError(err, "Can not delete cache file")return}con.Write([]byte("SUCCESS"))}func init() {rootCmd.AddCommand(cachePurgerCmd)}
尽管文件/目录存在，但仍然出现“no such file or directory”错误。我通过将os.Remove添加到main函数中进行了一次简单的检查，以确保问题不是与路径相关，并且我可以看到它成功删除了文件/目录。
我不确定这是否与go routing或tcp server有关！
非常感谢您的帮助！
英文:
I added a new command to my CLI application using the Cobra framework. This command is supposed to start a TCP server that accepts socket connections. It receives a payload which is an absolute path to a file/directory and tries to delete it. Here is the code for the command
package cmdimport ("bufio""fmt""net""os""github.com/spf13/cobra""wpgenius.io/util")var cachePurgerCmd = &cobra.Command{Use: "cache-purger",Short: "Listen for request to purge NGINX page cache",Run: func(cmd *cobra.Command, args []string) {dstream, err := net.Listen("tcp", ":9876")if err != nil {util.HandleError(err, "Can not start listener..")return}fmt.Println("Listening for purge requests...")defer dstream.Close()for {con, err := dstream.Accept()if err != nil {util.HandleError(err, "Can not accept connection")os.Exit(1)}go handleRequest(con)}},}func handleRequest(con net.Conn) {path, err := bufio.NewReader(con).ReadString('\n')if err != nil {return}defer con.Close()err = os.Remove(path)if err != nil {con.Write([]byte("ERROR"))fmt.Println(err)util.HandleError(err, "Can not delete cache file")return}con.Write([]byte("SUCCESS"))}func init() {rootCmd.AddCommand(cachePurgerCmd)}
Although the file/directory exists, I still get no such file or directory error.
I did a sanity check by simply adding the os.Remove to the main function to make sure it's not related to the path and I can see it successfully delete the file/directory.
I'm not sure if it has something to do with go routing or with the tcp server!
Any help will be highly appreciated!
答案1
得分: 0
我猜测你的意思是，在你输入的路径中，关键点在于...
英文:
I guess the point is \n in the path you input.
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