class ChefConfig::WorkstationConfigLoader

def apply_credentials(creds, profile)
  # Store the profile used in case other things want it.
  Config.profile ||= profile
  # Validate the credentials data.
  if creds.key?("node_name") && creds.key?("client_name")
    raise ChefConfig::ConfigurationError, "Do not specify both node_name and client_name. You should prefer client_name."
  end
  # Load credentials data into the Chef configuration.
  creds.each do |key, value|
    case key.to_s
    when "client_name"
      # Special case because it's weird to set your username via `node_name`.
      Config.node_name = value
    when "validation_key", "validator_key"
      extract_key(value, :validation_key, :validation_key_contents)
    when "client_key"
      extract_key(value, :client_key, :client_key_contents)
    when "knife"
      Config.knife.merge!(value.transform_keys(&:to_sym))
    else
      Config[key.to_sym] = value
    end
  end
  @credentials_found = true
end