/// <summary>
/// Gets matching input files based on globbing patterns and/or absolute paths. If any absolute paths
/// are provided, only those that actually exist are returned.
/// </summary>
/// <param name="fileSystem">The file system.</param>
/// <param name="patterns">The globbing patterns and/or absolute paths.</param>
/// <returns>All input files that match the globbing patterns and/or absolute paths.</returns>
public static IEnumerable <IFile> GetInputFiles(this IReadOnlyFileSystem fileSystem, params string[] patterns)
{
_ = fileSystem ?? throw new ArgumentNullException(nameof(fileSystem));
return(fileSystem.GetInputFiles((IEnumerable <string>)patterns));
}