Signup added. Backend added

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

@@ -0,0 +1,20 @@
+'use strict';
+
+module.exports = exports = rebuild;
+
+exports.usage = 'Runs "clean" and "build" at once';
+
+const napi = require('./util/napi.js');
+
+function rebuild(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  let commands = [
+    { name: 'clean', args: [] },
+    { name: 'build', args: ['rebuild'] }
+  ];
+  commands = napi.expand_commands(package_json, gyp.opts, commands);
+  for (let i = commands.length; i !== 0; i--) {
+    gyp.todo.unshift(commands[i - 1]);
+  }
+  process.nextTick(callback);
+}