Deployer\Bootstrap\BootstrapByConfigFile::executeBuilderMethods PHP Method

    private function executeBuilderMethods(Collection $config, BuilderInterface $builder)
    {
        if ($config->has('identity_file')) {
            if ($config['identity_file'] === null) {
                $builder->identityFile();
            } else {
                $builder->identityFile($config['identity_file']['public_key'], $config['identity_file']['private_key'], $config['identity_file']['password']);
            }
            unset($config['identity_file']);
        }
        if ($config->has('identity_config')) {
            if ($config['identity_config'] === null) {
                $builder->configFile();
            } else {
                $builder->configFile($config['identity_config']);
            }
            unset($config['identity_config']);
        }
        if ($config->has('forward_agent')) {
            $builder->forwardAgent();
            unset($config['forward_agent']);
        }
        foreach (['user', 'password', 'stage', 'pem_file'] as $key) {
            if ($config->has($key)) {
                $method = lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', $key))));
                $builder->{$method}($config[$key]);
                unset($config[$key]);
            }
        }
        // Everything else are set vars.
        foreach ($config->toArray() as $key => $value) {
            $builder->set($key, $value);
        }
    }