private static int ExecuteMerge(MergeOptions options)
{
if (!options.Validate())
{
return(1);
}
var merger = new FileMerger(options);
var timer = Stopwatch.StartNew();
var partitionCount = Directory.GetFiles(options.Folder, options.FileMask).Length;
Console.WriteLine($"Merge {partitionCount} partition started...");
merger.Merge();
Console.WriteLine($"Partitions merge executed at {timer.Elapsed}");
return(0);
}