Signup added. Backend added

node_modules/@mapbox/node-pre-gyp/lib/reinstall.js

@@ -0,0 +1,19 @@
+'use strict';
+
+module.exports = exports = rebuild;
+
+exports.usage = 'Runs "clean" and "install" at once';
+
+const napi = require('./util/napi.js');
+
+function rebuild(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  let installArgs = [];
+  const napi_build_version = napi.get_best_napi_build_version(package_json, gyp.opts);
+  if (napi_build_version != null) installArgs = [napi.get_command_arg(napi_build_version)];
+  gyp.todo.unshift(
+    { name: 'clean', args: [] },
+    { name: 'install', args: installArgs }
+  );
+  process.nextTick(callback);
+}