StackFormation\Profile\YamlCredentialProvider::loadFile PHP Method

    protected function loadFile($filename)
    {
        $configYaml = $this->getFileContent($filename);
        $config = \Symfony\Component\Yaml\Yaml::parse($configYaml);
        if (!isset($config['profiles'])) {
            throw new \Exception('Could not find "profiles" key');
        }
        if (!is_array($config['profiles']) || count($config['profiles']) == 0) {
            throw new \Exception('Could not find any profiles');
        }
        return $config['profiles'];
    }