fix(fs): copy file if symlink failed (#3368)

pkg/utils/file.go

@@ -40,7 +40,7 @@ func CopyFile(src, dst string) error {
 }
 
 // CopyDir Dir copies a whole directory recursively
-func CopyDir(src string, dst string) error {
+func CopyDir(src, dst string) error {
 	var err error
 	var fds []os.DirEntry
 	var srcinfo os.FileInfo
@@ -71,6 +71,17 @@ func CopyDir(src string, dst string) error {
 	return nil
 }
 
+// SymlinkOrCopyFile symlinks a file or copy if symlink failed
+func SymlinkOrCopyFile(src, dst string) error {
+	if err := CreateNestedDirectory(filepath.Dir(dst)); err != nil {
+		return err
+	}
+	if err := os.Symlink(src, dst); err != nil {
+		return CopyFile(src, dst)
+	}
+	return nil
+}
+
 // Exists determine whether the file exists
 func Exists(name string) bool {
 	if _, err := os.Stat(name); err != nil {
@@ -81,15 +92,20 @@ func Exists(name string) bool {
 	return true
 }
 
+// CreateNestedDirectory create nested directory
+func CreateNestedDirectory(path string) error {
+	err := os.MkdirAll(path, 0700)
+	if err != nil {
+		log.Errorf("can't create folder, %s", err)
+	}
+	return err
+}
+
 // CreateNestedFile create nested file
 func CreateNestedFile(path string) (*os.File, error) {
 	basePath := filepath.Dir(path)
-	if !Exists(basePath) {
-		err := os.MkdirAll(basePath, 0700)
-		if err != nil {
-			log.Errorf("can't create folder, %s", err)
-			return nil, err
-		}
+	if err := CreateNestedDirectory(basePath); err != nil {
+		return nil, err
 	}
 	return os.Create(path)
 }