Add new data.go file, WIP

src/cmd/tusd/data.go

@@ -0,0 +1,33 @@
+package main
+
+// This is very simple for now and will be enhanced as needed.
+
+import (
+	"os"
+	"path"
+)
+
+var dataDir string
+
+func init() {
+	wd, err := os.Getwd()
+	if err != nil {
+		panic(err)
+	}
+
+	dataDir = path.Join(wd, "tus_data")
+	if err := os.MkdirAll(dataDir, 0777); err != nil {
+		panic(err)
+	}
+}
+
+func dataPath(fileId string) string {
+	return path.Join(dataDir, fileId)
+}
+
+func logPath(fileId string) string {
+	return dataPath(fileId)+".log"
+}
+
+func initDataFile(id string, size int) {
+}