Basic create_user script plus rough system agent support.

scripts/user/create_user.php

@@ -0,0 +1,49 @@
+#!/usr/bin/env php
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+$root = dirname(dirname(dirname(__FILE__)));
+require_once $root.'/scripts/__init_script__.php';
+require_once $root.'/scripts/__init_env__.php';
+
+if ($argc < 4) {
+  echo "usage: create_user.php <user_name> <real_name> <email> [--agent]\n";
+  die(1);
+}
+
+$username = $argv[1];
+$realname = $argv[2];
+$email    = $argv[3];
+$user = id(new PhabricatorUser())->loadOneWhere(
+  'userName = %s',
+  $username);
+if ($user) {
+  echo "User already exists!\n";
+  die(1);
+}
+
+$user = new PhabricatorUser();
+$user->setUserName($username);
+$user->setRealName($realname);
+$user->setEmail($email);
+if (isset($argv[4]) && $argv[4] == '--agent') {
+  $user->setIsSystemAgent(true);
+}
+$user->save();
+
+echo "Created user.\n";

src/applications/typeahead/controller/common/PhabricatorTypeaheadCommonDatasourceController.php

@@ -66,6 +66,9 @@ class PhabricatorTypeaheadCommonDatasourceController
     if ($need_users) {
       $users = id(new PhabricatorUser())->loadAll();
       foreach ($users as $user) {
+        if ($user->getIsSystemAgent()) {
+          continue;
+        }
         $data[] = array(
           $user->getUsername().' ('.$user->getRealName().')',
           '/p/'.$user->getUsername(),