VersionPress\Git\MergeDriverInstaller::installMergeDriver PHP Method

    public static function installMergeDriver($rootDir, $pluginDir, $vpdbDir, $driver = self::DRIVER_AUTO)
    {
        self::installGitattributes($rootDir, $pluginDir, $vpdbDir);
        self::installGitConfig($rootDir, $pluginDir, $driver);
    }

 /**
  * Finishes clone operation
  *
  * @subcommand finish-restore-site
  *
  * @when before_wp_load
  *
  */
 public function finishRestore($args, $assoc_args)
 {
     define('SHORTINIT', true);
     $wpConfigPath = \WP_CLI\Utils\locate_wp_config();
     require_once $wpConfigPath;
     require ABSPATH . WPINC . '/formatting.php';
     require ABSPATH . WPINC . '/link-template.php';
     require ABSPATH . WPINC . '/shortcodes.php';
     require ABSPATH . WPINC . '/taxonomy.php';
     wp_plugin_directory_constants();
     require_once WP_PLUGIN_DIR . '/versionpress/bootstrap.php';
     $versionPressContainer = DIContainer::getConfiguredInstance();
     /** @var ActionsDefinitionRepository $actionsDefinitionRepository */
     $actionsDefinitionRepository = $versionPressContainer->resolve(VersionPressServices::ACTIONS_DEFINITION_REPOSITORY);
     $actionsDefinitionRepository->restoreAllDefinitionFilesFromHistory();
     // Truncate tables
     /** @var Database $database */
     $database = $versionPressContainer->resolve(VersionPressServices::DATABASE);
     /** @var DbSchemaInfo $dbSchema */
     $dbSchema = $versionPressContainer->resolve(VersionPressServices::DB_SCHEMA);
     $tables = array_map(function ($entityName) use($dbSchema) {
         return $dbSchema->getPrefixedTableName($entityName);
     }, array_merge($dbSchema->getAllEntityNames(), array_map(function ($referenceDetails) {
         return $referenceDetails['junction-table'];
     }, $dbSchema->getAllMnReferences())));
     $tables = array_filter($tables, function ($table) use($database) {
         return $table !== $database->options;
     });
     foreach ($tables as $table) {
         $truncateCmd = "TRUNCATE TABLE `{$table}`";
         @$database->query($truncateCmd);
         // Intentional @ - not existing table is ok for us but TRUNCATE ends with error
     }
     // Create VersionPress tables
     /** @var \VersionPress\Initialization\Initializer $initializer */
     $initializer = $versionPressContainer->resolve(VersionPressServices::INITIALIZER);
     $initializer->createVersionPressTables();
     WP_CLI::success("VersionPress tables created");
     // Install Custom merge driver
     MergeDriverInstaller::installMergeDriver(VP_PROJECT_ROOT, VERSIONPRESS_PLUGIN_DIR, VP_VPDB_DIR);
     WP_CLI::success("Git merge driver added");
     // Run synchronization
     /** @var SynchronizationProcess $syncProcess */
     $syncProcess = $versionPressContainer->resolve(VersionPressServices::SYNCHRONIZATION_PROCESS);
     $syncProcess->synchronizeAll();
     WP_CLI::success("Database synchronized");
     VPCommandUtils::runWpCliCommand('vp-internal', 'flush-regenerable-values', ['require' => __FILE__]);
 }