Support React Native 0.82.x

Issue: #6

Author: retyui

lib/customSerializer.js

@@ -1,13 +1,23 @@
+const { parse } = require("path");
 const { writeFileSync, existsSync } = require("fs");
 const { resolve } = require("path");
 const { Buffer } = require("buffer");
 const chalk = require("chalk");
 
 const NAME = require("../package.json").name;
 
+function getDefault(module) {
+  return module.__esModule ? module.default : module;
+}
+
 function getDefaultSerializer() {
-  const bundleToString = require("metro/src/lib/bundleToString");
-  const baseJSBundle = require("metro/src/DeltaBundler/Serializers/baseJSBundle");
+  const metroPath = parse(require.resolve("metro/package.json")).dir;
+  const bundleToString = getDefault(
+    require(`${metroPath}/src/lib/bundleToString.js`),
+  );
+  const baseJSBundle = getDefault(
+    require(`${metroPath}/src/DeltaBundler/Serializers/baseJSBundle.js`),
+  );
 
   return (entryPoint, preModules, graph, options) =>
     bundleToString(baseJSBundle(entryPoint, preModules, graph, options)).code;