add build

node_modules/terser/tools/node.js

@@ -0,0 +1,22 @@
+var fs = require("fs");
+
+var bundle_path = __dirname + "/../dist/bundle.js";
+var UglifyJS = require(bundle_path);
+module.exports = UglifyJS;
+
+function infer_options(options) {
+    var result = UglifyJS.minify("", options);
+    return result.error && result.error.defs;
+}
+
+UglifyJS.default_options = function() {
+    var defs = {};
+    Object.keys(infer_options({ 0: 0 })).forEach(function(component) {
+        var options = {};
+        options[component] = { 0: 0 };
+        if (options = infer_options(options)) {
+            defs[component] = options;
+        }
+    });
+    return defs;
+};