public static void DeleteFile(string filePath, bool contentOnly, bool includingBom)
{
if (contentOnly)
{
FileAccess fileAccess = (includingBom) ? FileAccess.Write : FileAccess.ReadWrite;
using (var stream = new FileStream(filePath, FileMode.Open, fileAccess))
{
int length = 0;
if (includingBom)
{
Encoding encoding = EncodingHelpers.DetectEncoding(stream);
if (encoding != null)
{
length = encoding.Preamble.Length;
}
}
stream.SetLength(length);
}
}
else
{
File.Delete(filePath);
}
}
public static bool IsEmptyFile(string path)
{
var fileInfo = new FileInfo(path);
if (fileInfo.Length == 0)
{
return(true);
}
if (fileInfo.Length <= 4)
{
using (FileStream stream = fileInfo.OpenRead())
{
Encoding encoding = EncodingHelpers.DetectEncoding(stream);
return(encoding?.Preamble.Length == stream.Length);
}
}
return(false);
}