module ChefConfig::Mixin::Credentials

def parse_credentials_file
  credentials_file = credentials_file_path
  return nil unless File.file?(credentials_file)
  begin
    Tomlrb.load_file(credentials_file)
  rescue => e
    # TOML's error messages are mostly rubbish, so we'll just give a generic one
    message = "Unable to parse Credentials file: #{credentials_file}\n"
    message << e.message
    raise ChefConfig::ConfigurationError, message
  end
end