Piwik\Plugins\CorePluginsAdmin\PluginInstaller::copyPluginToDestination PHP Method

    private function copyPluginToDestination($tmpPluginFolder)
    {
        $pluginTargetPath = PIWIK_USER_PATH . self::PATH_TO_EXTRACT . $this->pluginName;
        $this->removeFolderIfExists($pluginTargetPath);
        Filesystem::copyRecursive($tmpPluginFolder, PIWIK_USER_PATH . self::PATH_TO_EXTRACT);
    }