Eccube\Service\PluginService::update PHP Method

    public function update(\Eccube\Entity\Plugin $plugin, $path)
    {
        $pluginBaseDir = null;
        $tmp = null;
        try {
            $this->app->removePluginConfigCache();
            Cache::clear($this->app, false);
            $tmp = $this->createTempDir();
            $this->unpackPluginArchive($path, $tmp);
            //一旦テンポラリに展開
            $this->checkPluginArchiveContent($tmp);
            $config = $this->readYml($tmp . '/' . self::CONFIG_YML);
            $event = $this->readYml($tmp . '/event.yml');
            if ($plugin->getCode() != $config['code']) {
                throw new PluginException('new/old plugin code is different.');
            }
            if ($plugin->getName() != $config['name']) {
                throw new PluginException('new/old plugin name is different.');
            }
            $pluginBaseDir = $this->calcPluginDir($config['code']);
            $this->deleteFile($tmp);
            // テンポラリのファイルを削除
            $this->unpackPluginArchive($path, $pluginBaseDir);
            // 問題なければ本当のplugindirへ
            $this->updatePlugin($plugin, $config, $event);
            // dbにプラグイン登録
            $this->app->writePluginConfigCache();
        } catch (PluginException $e) {
            foreach (array($tmp) as $dir) {
                if (file_exists($dir)) {
                    $fs = new Filesystem();
                    $fs->remove($dir);
                }
            }
            throw $e;
        }
        return true;
    }