added Google Cloud Filesystem

[gusev-genotek]

Kindly asking to merge this feature into master. Exactly what I need right now.

[razvanphp]

Automatic authentication in google app engine does not work because of throw new InvalidConfigException in init(): documentation.

• If running in Google App Engine, the built-in service account associated with the application will be used.
• If running in Google Compute Engine, the built-in service account associated with the virtual machine instance will be used.

[schmunk42]

@razvanphp Sorry, I do not understand the problem you are referring to.

We are using this since a while without any issues.

Can you describe more in detail or create a new issue if needed.

[razvanphp]

In here, if we specify keyFilePath, then automatic authentication from ENV for example or Google App Engine will not work anymore, because file is the first one in priority. I would suggest to create $this->config and pass this to the Client like this:

    protected function prepareAdapter()
    {
        if (isset($this->config['keyFilePath'])) {
            $this->config['keyFilePath'] = \Yii::getAlias($this->config['keyFilePath']);
        }

        $client = new StorageClient($this->config);
        $bucket = $client->bucket($this->bucket);
        return  new GoogleStorageAdapter($client, $bucket);
    }

[schmunk42]

How do handle projectId?

[razvanphp]

In Google App Engine it is also not required, it's automatically injected from the ENV.

[schmunk42]

Can you create a PR, which is backward-compatible?