package.gitClone: return error if destination directory is not empty

1 files changed, 1 insertions, 0 deletions

diff --git a/beku.go b/beku.go
index 9b838cf..3f079a0 100644
--- a/beku.go
+++ b/beku.go
@@ -54,6 +54,7 @@ var (
 	ErrPackageName = errors.New("Empty or invalid package name")
 
 	errDBPackageName = "missing package name, line %d at %s"
+	errDirNotEmpty   = "directory %s is not empty"
 )
 
 var (