feat: dir and file check

internal/errs/errors.go

@@ -2,23 +2,15 @@ package errs
 
 import (
 	"errors"
-	pkgerr "github.com/pkg/errors"
 )
 
 var (
-	ObjectNotFound = errors.New("object not found")
-	NotImplement   = errors.New("not implement")
-	NotSupport     = errors.New("not support")
-	RelativePath   = errors.New("access using relative path is not allowed")
+	NotImplement = errors.New("not implement")
+	NotSupport   = errors.New("not support")
+	RelativePath = errors.New("access using relative path is not allowed")
 
 	MoveBetweenTwoAccounts = errors.New("can't move files between two account, try to copy")
 	UploadNotSupported     = errors.New("upload not supported")
-	NotFolder              = errors.New("not a folder")
-	NotFile                = errors.New("not a file")
 
 	MetaNotFound = errors.New("meta not found")
 )
-
-func IsObjectNotFound(err error) bool {
-	return pkgerr.Cause(err) == ObjectNotFound
-}