DeleteHelper.cs

namespace GitVersion
{
    using System.IO;

    public static class ServiceMessageEscapeHelper
    {
        public static string EscapeValue(string value)
        {
            if (value == null)
            {
                return null;
            }
            // List of escape values from http://confluence.jetbrains.com/display/TCD8/Build+Script+Interaction+with+TeamCity

            value = value.Replace("|", "||");
            value = value.Replace("'", "|'");
            value = value.Replace("[", "|[");
            value = value.Replace("]", "|]");
            value = value.Replace("\r", "|r");
            value = value.Replace("\n", "|n");

            return value;
        }
    }
    public static class DeleteHelper
    {
        public static void DeleteGitRepository(string directory)
        {
            if (string.IsNullOrEmpty(directory))
            {
                return;
            }

            foreach (var fileName in Directory.GetFiles(directory, "*.*", SearchOption.AllDirectories))
            {
                var fileInfo = new FileInfo(fileName)
                {
                    IsReadOnly = false
                };

                fileInfo.Delete();
            }

            Directory.Delete(directory, true);
        }
    }
}