feat: initial commit

index.js

@@ -0,0 +1,19 @@
+const babel = require("@babel/core");
+
+async function plugin(bundle, { name, data, mode }) {
+  return new Promise((resolve, reject) => {
+    // only transform javascript files
+    if (name.match(/\.js$|\.cjs$|\.mjs$/)) {
+      babel.transform(data.toString(), (err, result) => {
+        if (err) reject(err);
+        // overwrite the old code with the transpiled code in the bundle
+        bundle.write(name, result.code, { mode });
+        resolve();
+      });
+    } else {
+      resolve();
+    }
+  });
+}
+
+module.exports = plugin;