feat: add makeParent options to addChild

packages/file-graph/utils.js

@@ -0,0 +1,10 @@
+export function dirname(path) {
+  const parts = path.split('/')
+  parts.pop()
+  return parts.join('/')
+}
+
+export function basename(path) {
+  const parts = path.split('/')
+  return parts.pop()
+}