public static IConfigurationSourceRoot AddIniFile([NotNull] this IConfigurationSourceRoot configuration, [NotNull] string path, bool optional)
{
if (string.IsNullOrEmpty(path))
{
throw new ArgumentException(Resources.Error_InvalidFilePath, nameof(path));
}
var str = PathResolver.ResolveAppRelativePath(path);
if (!optional && !File.Exists(str))
{
throw new FileNotFoundException(Resources.Error_FileNotFound, str);
}
configuration.Add(new IniFileConfigurationSource(path, optional));
return(configuration);
}