#!/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';

phutil_require_module('phutil', 'console');
phutil_require_module('phutil', 'future/exec');

if (empty($argv[1])) {
  echo "usage: test_connection.php <repository_callsign>\n";
  exit(1);
}

echo phutil_console_wrap(
  phutil_console_format(
    'This script will test that you have configured valid credentials for '.
    'access to a repository, so the Phabricator daemons can pull from it. '.
    'You should run this as the **same user you will run the daemons as**, '.
    'from the **same machine they will run from**. Doing this will help '.
    'detect various problems with your configuration, such as SSH issues.'));

list($whoami) = execx('whoami');
$whoami = trim($whoami);

$ok = phutil_console_confirm("Do you want to continue as '{$whoami}'?");
if (!$ok) {
  die(1);
}

$callsign = $argv[1];
echo "Loading '{$callsign}' repository...\n";
$repository = id(new PhabricatorRepository())->loadOneWhere(
  'callsign = %s',
  $argv[1]);
if (!$repository) {
  throw new Exception("No such repository exists!");
}

$vcs = $repository->getVersionControlSystem();

PhutilServiceProfiler::installEchoListener();

echo "Trying to connect to the remote...\n";
switch ($vcs) {
  case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
    $err = $repository->passthruRemoteCommand(
      '--limit 1 log %s',
      $repository->getRemoteURI());
    break;
  case PhabricatorRepositoryType::REPOSITORY_TYPE_GIT:
    // Do an ls-remote on a nonexistent ref, which we expect to just return
    // nothing.
    $err = $repository->passthruRemoteCommand(
      'ls-remote %s %s',
      $repository->getRemoteURI(),
      'just-testing');
    break;
  default:
    throw new Exception("Unsupported repository type.");
}

if ($err) {
  echo phutil_console_format(
    "<bg:red>** FAIL **</bg> Connection failed. The credentials for this ".
    "repository appear to be incorrectly configured.\n");
  exit(1);
} else {
  echo phutil_console_format(
    "<bg:green>** OKAY **</bg> Connection successful. The credentials for ".
    "this repository appear to be correctly configured.\n");
}