private FileHash CalculateFileHash(string rootFolder, string path, Dictionary <uint, FileHash> checkSums)
{
CRC32 crc32 = new CRC32();
// check if this is a folder
if (Directory.Exists(path))
{
FileHash folder = new FileHash();
folder.IsFolder = true;
folder.Name = Path.GetFileName(path);
folder.FullName = path.Substring(rootFolder.Length - 1);
// process child folders and files
List <string> childFiles = new List <string>();
childFiles.AddRange(Directory.GetDirectories(path));
childFiles.AddRange(Directory.GetFiles(path));
foreach (string childFile in childFiles)
{
FileHash childHash = CalculateFileHash(rootFolder, childFile, checkSums);
folder.Files.Add(childHash);
// check sum
folder.CheckSum += childHash.CheckSum;
folder.CheckSum += ConvertCheckSumToInt(crc32.ComputeHash(Encoding.UTF8.GetBytes(childHash.Name)));
//Debug.WriteLine(folder.CheckSum + " : " + folder.FullName);
}
// move list to array
folder.FilesArray = folder.Files.ToArray();
if (!checkSums.ContainsKey(folder.CheckSum))
{
checkSums.Add(folder.CheckSum, folder);
}
return(folder);
}
FileHash file = new FileHash();
file.Name = Path.GetFileName(path);
file.FullName = path.Substring(rootFolder.Length - 1);
// calculate CRC32
using (FileStream fs = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read))
{
file.CheckSum = ConvertCheckSumToInt(
crc32.ComputeHash(fs));
}
if (!checkSums.ContainsKey(file.CheckSum))
{
checkSums.Add(file.CheckSum, file);
}
//Debug.WriteLine(file.CheckSum + " : " + file.FullName);
return(file);
}
private FileHash CalculateFileHash(string rootFolder, string path, Dictionary<uint, FileHash> checkSums)
{
CRC32 crc32 = new CRC32();
// check if this is a folder
if (Directory.Exists(path))
{
FileHash folder = new FileHash();
folder.IsFolder = true;
folder.Name = Path.GetFileName(path);
folder.FullName = path.Substring(rootFolder.Length - 1);
// process child folders and files
List<string> childFiles = new List<string>();
childFiles.AddRange(Directory.GetDirectories(path));
childFiles.AddRange(Directory.GetFiles(path));
foreach (string childFile in childFiles)
{
FileHash childHash = CalculateFileHash(rootFolder, childFile, checkSums);
folder.Files.Add(childHash);
// check sum
folder.CheckSum += childHash.CheckSum;
folder.CheckSum += ConvertCheckSumToInt(crc32.ComputeHash(Encoding.UTF8.GetBytes(childHash.Name)));
//Debug.WriteLine(folder.CheckSum + " : " + folder.FullName);
}
// move list to array
folder.FilesArray = folder.Files.ToArray();
if (!checkSums.ContainsKey(folder.CheckSum))
checkSums.Add(folder.CheckSum, folder);
return folder;
}
FileHash file = new FileHash();
file.Name = Path.GetFileName(path);
file.FullName = path.Substring(rootFolder.Length - 1);
// calculate CRC32
using (FileStream fs = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read))
{
file.CheckSum = ConvertCheckSumToInt(
crc32.ComputeHash(fs));
}
if (!checkSums.ContainsKey(file.CheckSum))
checkSums.Add(file.CheckSum, file);
//Debug.WriteLine(file.CheckSum + " : " + file.FullName);
return file;
}
