add some babel stuff

node_modules/babel-minify/lib/index.js

@@ -0,0 +1,30 @@
+"use strict";
+
+const babelCore = require("@babel/core");
+
+const babelPresetMinify = require("babel-preset-minify");
+
+module.exports = function babelMinify(input, // Minify options passed to minifyPreset
+// defaults are handled in preset
+options = {}, // overrides and other options
+{
+  minified = true,
+  inputSourceMap,
+  sourceMaps = false,
+  sourceType = "script",
+  // to override the default babelCore used
+  babel = babelCore,
+  // to override the default minify preset used
+  minifyPreset = babelPresetMinify
+} = {}) {
+  return babel.transformSync(input, {
+    babelrc: false,
+    configFile: false,
+    presets: [[minifyPreset, options]],
+    comments: false,
+    inputSourceMap,
+    sourceMaps,
+    minified,
+    sourceType
+  });
+};