reorganized code

helper/dir.go

@@ -1,6 +1,9 @@
 package helper
 
-import "os"
+import (
+	"os"
+	"strings"
+)
 
 // CreateDirectory creates direcory with all missing parents and panic if error
 func CreateDirectory(dir string) {
@@ -22,3 +25,14 @@ func CreateDirectory(dir string) {
 		Log.Panicf("unknown error for output directory '%s': %s", dir, err)
 	}
 }
+
+// BackToRoot builds ../../ string
+func BackToRoot(curNavPath string) string {
+	tmpPath := ""
+	if curNavPath != "" {
+		for i := strings.Count(curNavPath, "/") + 1; i > 0; i-- {
+			tmpPath += "../"
+		}
+	}
+	return tmpPath
+}