vStationURM/Tools/AutoBuilder/IoHelper.cs

using System.IO;

namespace AutoBuilder
{
    public class IoHelper
    {
        public const int BufferSize = 64;
        public static void CopyFile(string source, string dest)
        {
            using (var sourceStream = new FileStream(source, FileMode.Open, FileAccess.Read))
            {
                using (var destStream = new FileStream(dest, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite, BufferSize, FileOptions.WriteThrough))
                {
                    sourceStream.CopyTo(destStream);
                }
            }
        }

        public static void CopyFolder(string sourceDirectory, string destDirectory)
        {
            var diSource = new DirectoryInfo(sourceDirectory);
            var diDest = new DirectoryInfo(destDirectory);
            CopyFolder(diSource, diDest);
        }

        public static void CopyFolder(DirectoryInfo source, DirectoryInfo dest)
        {
            if (!source.Exists)
            {
                throw new IOException($"Src {source.FullName} does not exist");
            }

            bool folderNew = false;
            if (!dest.Exists)
            {
                dest.Create();
                folderNew = true;
            }

            foreach (var file in source.GetFiles())
            {
                CopyFile(file.FullName, Path.Combine(dest.FullName, file.Name));
            }

            foreach (var srcChild in source.GetDirectories())
            {
                CopyFolder(srcChild, new DirectoryInfo(Path.Combine(dest.FullName, srcChild.Name)));
            }
            if (folderNew)
            {
                dest.LastAccessTimeUtc = source.LastAccessTimeUtc;
                dest.LastWriteTimeUtc = source.LastWriteTimeUtc;
                dest.CreationTimeUtc = source.CreationTimeUtc;
            }
        }

        public static void DeleteFolder(string folderPath)
        {
            var directoryInfo = new DirectoryInfo(folderPath);
            DeleteFolder(directoryInfo);
        }

        public static void DeleteFolder(DirectoryInfo directoryInfo)
        {
            if (!directoryInfo.Exists)
            {
                return;
            }
            foreach (var file in directoryInfo.GetFiles())
            {
                file.Attributes = FileAttributes.Normal;
                file.Delete();
            }
            foreach (var subFolder in directoryInfo.GetDirectories())
            {
                DeleteFolder(subFolder);
            }
            directoryInfo.Attributes = FileAttributes.Normal;
            directoryInfo.Delete();
        }
    }
}