kratos run command support to find the cmd directory from the parent directory (#1146)

* feat(cmd): kratos run command support to find the cmd directory from the parent directory

Co-authored-by: chenzhihui <zhihui_chen@foxmail.com>

cmd/kratos/internal/run/run.go

@@ -34,7 +34,7 @@ func Run(cmd *cobra.Command, args []string) {
 	}
 	if dir == "" {
 		// find the directory containing the cmd/*
-		cmdDir, err := findCMD()
+		cmdDir, cmdPath, err := findCMD(base)
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "\033[31mERROR: %s\033[m\n", err)
 			return
@@ -43,14 +43,14 @@ func Run(cmd *cobra.Command, args []string) {
 			fmt.Fprintf(os.Stderr, "\033[31mERROR: %s\033[m\n", "The cmd directory cannot be found in the current directory")
 			return
 		} else if len(cmdDir) == 1 {
-			dir = path.Join(base, cmdDir[0])
+			dir = path.Join(cmdDir, cmdPath[0])
 		} else {
 			prompt := &survey.Select{
 				Message: "Which directory do you want to run?",
-				Options: cmdDir,
+				Options: cmdPath,
 			}
 			survey.AskOne(prompt, &dir)
-			dir = path.Join(base, dir)
+			dir = path.Join(cmdDir, dir)
 		}
 	}
 	fd := exec.Command("go", "run", ".")
@@ -64,26 +64,41 @@ func Run(cmd *cobra.Command, args []string) {
 	return
 }
 
-func findCMD() ([]string, error) {
-	var hasCMDPaths []string
-	err := filepath.Walk(".", func(walkPath string, info os.FileInfo, err error) error {
-		// multi level directory is not allowed under the cmd directory, so it is judged that the path ends with cmd.
-		if strings.HasSuffix(walkPath, "cmd") {
-			paths, err := ioutil.ReadDir(walkPath)
-			if err != nil {
-				return err
-			}
-			for _, fileInfo := range paths {
-				if fileInfo.IsDir() {
-					hasCMDPaths = append(hasCMDPaths, path.Join(walkPath, fileInfo.Name()))
+func findCMD(base string) (string, []string, error) {
+	next := func(dir string) (string, []string, error) {
+		var (
+			cmdDir  string
+			cmdPath []string
+		)
+		err := filepath.Walk(dir, func(walkPath string, info os.FileInfo, err error) error {
+			// multi level directory is not allowed under the cmd directory, so it is judged that the path ends with cmd.
+			if strings.HasSuffix(walkPath, "cmd") {
+				paths, err := ioutil.ReadDir(walkPath)
+				if err != nil {
+					return err
+				}
+				for _, fileInfo := range paths {
+					if fileInfo.IsDir() {
+						cmdPath = append(cmdPath, path.Join("cmd", fileInfo.Name()))
+					}
 				}
+				cmdDir, _ = path.Split(walkPath)
+				return nil
 			}
 			return nil
+		})
+		return cmdDir, cmdPath, err
+	}
+	for i := 0; i < 5; i++ {
+		base = path.Clean(base)
+		cmdDir, res, err := next(base)
+		if err != nil {
+			return "", nil, err
 		}
-		return nil
-	})
-	if err != nil {
-		return []string{}, err
+		if len(res) > 0 {
+			return cmdDir, res, nil
+		}
+		base, _ = path.Split(base)
 	}
-	return hasCMDPaths, err
+	return "", []string{base}, nil
 }