better project layout

pkg/helper/dir.go

@@ -0,0 +1,38 @@
+package helper
+
+import (
+	"os"
+	"strings"
+)
+
+// CreateDirectory creates direcory with all missing parents and panic if error
+func CreateDirectory(dir string) {
+	Log.Debugf("trying to create output directory: %s", dir)
+
+	if dirH, err := os.Stat(dir); os.IsNotExist(err) {
+		err := os.MkdirAll(dir, 0755)
+		if err != nil {
+			Log.Panicf("could not create output directory '%s': %s", dir, err)
+		}
+		Log.Noticef("created output directory: %s", dir)
+	} else if dirH != nil {
+		if dirH.IsDir() {
+			Log.Noticef("output directory '%s' already exists", dir)
+		} else {
+			Log.Panicf("output directory '%s' is no directory", dir)
+		}
+	} else {
+		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
+}