Method createExtensionRoot

/**
 * Method to create the extension root path if necessary
 *
 * @return  void
 *
 * @since   3.4
 * @throws  \RuntimeException
 */
protected function createExtensionRoot()
{
    // If the component directory does not exist, let's create it
    $created = false;
    if (!file_exists($this->parent->getPath('extension_site'))) {
        if (!($created = Folder::create($this->parent->getPath('extension_site')))) {
            throw new \RuntimeException(Text::sprintf('JLIB_INSTALLER_ABORT_CREATE_DIRECTORY', Text::_('JLIB_INSTALLER_' . strtoupper($this->route)), $this->parent->getPath('extension_site')));
        }
    }
    /*
     * Since we created the component directory and we will want to remove it if we have to roll back
     * the installation, let's add it to the installation step stack
     */
    if ($created) {
        $this->parent->pushStep(array('type' => 'folder', 'path' => $this->parent->getPath('extension_site')));
    }
    // If the component admin directory does not exist, let's create it
    $created = false;
    if (!file_exists($this->parent->getPath('extension_administrator'))) {
        if (!($created = Folder::create($this->parent->getPath('extension_administrator')))) {
            throw new \RuntimeException(Text::sprintf('JLIB_INSTALLER_ABORT_CREATE_DIRECTORY', Text::_('JLIB_INSTALLER_' . strtoupper($this->route)), $this->parent->getPath('extension_administrator')));
        }
    }
    /*
     * Since we created the component admin directory and we will want to remove it if we have to roll
     * back the installation, let's add it to the installation step stack
     */
    if ($created) {
        $this->parent->pushStep(array('type' => 'folder', 'path' => $this->parent->getPath('extension_administrator')));
    }
    // If the component API directory does not exist, let's create it
    $created = false;
    if (!file_exists($this->parent->getPath('extension_api'))) {
        if (!($created = Folder::create($this->parent->getPath('extension_api')))) {
            throw new \RuntimeException(Text::sprintf('JLIB_INSTALLER_ABORT_CREATE_DIRECTORY', Text::_('JLIB_INSTALLER_' . strtoupper($this->route)), $this->parent->getPath('extension_api')));
        }
    }
    /*
     * Since we created the component API directory and we will want to remove it if we have to roll
     * back the installation, let's add it to the installation step stack
     */
    if ($created) {
        $this->parent->pushStep(array('type' => 'folder', 'path' => $this->parent->getPath('extension_api')));
    }
}