Add store

snapshot2/store.go

@@ -0,0 +1,13 @@
+package snapshot2
+
+import "path/filepath"
+
+const (
+	metaFileName = "meta.json"
+	tmpSuffix    = ".tmp"
+)
+
+// metaPath returns the path to the meta file in the given directory.
+func metaPath(dir string) string {
+	return filepath.Join(dir, metaFileName)
+}