I'm using Laravel 5.2 and I do `php artisan config:cache` as recommended in the official documentation for speed improvement.

As you may know, this command makes the .env file variables directly inaccessibles (you can test it with `php artisan tinker`), and for that reason all the calls to `env()` and `getenv()` function must be replaced by `config()` in the code, except for the files in the config folder. After executing this command, calls like `env('APP_ENV')` return NULL.

In my project, I'm connecting to Google Cloud using the [google-auth-library-php](https://github.com/google/google-auth-library-php). Unfortunately, in the CredentialsLoader.php file there is a call to the function `getenv(self::ENV_VAR)` that attempts to get the path of the Google credentials file. As I run the command `php artisan config:cache`, the path can't be read from the .env file and the connection cannot be completed.

I can see 3 ways to continue:

1. Forget about running `php artisan config:cache`.
2. Ask here if somebody knows how to specify the path of the Google credentials file as a parameter of any function of the package.
3. (Forgive me, God) Correct the CredentialsLoader.php file (`getenv()` to `config()`), run the command and track this file in the repository, then this change will propagate to every team member when they pull.

Thank you in advance!