/// <summary>
/// Processes all files/dirs in the top level target directory.
/// </summary>
/// <returns>
/// Success/Failure.
/// </returns>
/// <param name="path">An existing file system directory.</param>
public bool GetFileSystemSnapshot(string path)
{
List <String> directoryList = new List <String>();
WIN32_FIND_DATAW findData;
IntPtr findHandle = INVALID_HANDLE_VALUE;
try
{
path = path.EndsWith(@"\") ? path : path + @"\";
findHandle = FindFirstFileW(path + @"*", out findData);
if (findHandle != INVALID_HANDLE_VALUE)
{
do
{
// Skip current directory (.) and parent directory (..) symbols
if (findData.cFileName != "." && findData.cFileName != "..")
{
string fullPath = path + findData.cFileName;
// Check if this is a directory and not a symbolic link since symbolic links
// could lead to repeated files and folders as well as infinite loops
bool isDirectory = findData.dwFileAttributes.HasFlag(FileAttributes.Directory);
bool isSymbolicLink = findData.dwFileAttributes.HasFlag(FileAttributes.ReparsePoint);
if (isDirectory && !isSymbolicLink)
{
// Process directory
//string fullPath = path + findData.cFileName;
directoryList.Add(fullPath);
// Query file system entry, populate and append to dict
FileInformation directoryInformation = PopulateFileInformation(findData, path);
AllDirs.TryAdd(directoryInformation.FullPath, directoryInformation);
AllFSEntries.TryAdd(directoryInformation.FullPath, directoryInformation);
// Increase directory count
Interlocked.Increment(ref DirCounter);
Console.Write("\rDirs: {0} Files: {1}", DirCounter, FileCounter);
}
else if (!isDirectory)
{
// Process file
FileInformation fileInformation = PopulateFileInformation(findData, path);
AllFiles.TryAdd(fileInformation.FullPath, fileInformation);
AllFSEntries.TryAdd(fileInformation.FullPath, fileInformation);
// Increase file count
Interlocked.Increment(ref FileCounter);
Console.Write("\rDirs: {0} Files: {1}", DirCounter, FileCounter);
}
}
}
// Process any subdirectories
while (FindNextFile(findHandle, out findData));
directoryList.AsParallel().ForAll(x =>
{
if (FindNextFileRecursive(x))
{
}
});
}
}
catch (Exception exception)
{
Console.WriteLine("Caught exception while trying to enumerate a directory...");
Console.WriteLine(exception.ToString());
if (findHandle != INVALID_HANDLE_VALUE)
{
FindClose(findHandle);
}
return(false);
}
if (findHandle != INVALID_HANDLE_VALUE)
{
FindClose(findHandle);
}
return(true);
}
/// <summary>
/// Recursively processes subdirectories and the contained files.
/// </summary>
/// <returns>
/// Success/Failure.
/// </returns>
/// <param name="path">An existing file system directory.</param>
/// <param name="files">List of files to process.</param>
/// <param name="directories">List of directories to process.</param>
private bool FindNextFileRecursive(string path)
{
List <String> directoryList = new List <String>();
WIN32_FIND_DATAW findData;
IntPtr findHandle = INVALID_HANDLE_VALUE;
try
{
findHandle = FindFirstFileW(path + @"\*", out findData);
if (findHandle != INVALID_HANDLE_VALUE)
{
do
{
// Skip current directory (.) and parent directory (..) symbols
if (findData.cFileName != "." && findData.cFileName != "..")
{
string fullPath = path + @"\" + findData.cFileName;
// Check if this is a directory and not a symbolic link since symbolic links
// could lead to repeated files and folders as well as infinite loops.
bool isDirectory = findData.dwFileAttributes.HasFlag(FileAttributes.Directory);
bool isSymbolicLink = findData.dwFileAttributes.HasFlag(FileAttributes.ReparsePoint);
if (isDirectory && !isSymbolicLink)
{
// Add the directory to the list
directoryList.Add(fullPath);
FileInformation directoryInformation = PopulateFileInformation(findData, path);
AllDirs.TryAdd(directoryInformation.FullPath, directoryInformation);
AllFSEntries.TryAdd(directoryInformation.FullPath, directoryInformation);
// Increase directory count
Interlocked.Increment(ref DirCounter);
Console.Write("\rDirs: {0} Files: {1}", DirCounter, FileCounter);
if (FindNextFileRecursive(fullPath))
{
}
}
else if (!isDirectory)
{
// Add the file to the list
FileInformation fileInformation = PopulateFileInformation(findData, path);
AllFiles.TryAdd(fileInformation.FullPath, fileInformation);
AllFSEntries.TryAdd(fileInformation.FullPath, fileInformation);
// Increase file count
Interlocked.Increment(ref FileCounter);
Console.Write("\rDirs: {0} Files: {1}", DirCounter, FileCounter);
}
}
}while (FindNextFile(findHandle, out findData));
}
}
catch (Exception exception)
{
Console.WriteLine("Caught exception while trying to enumerate a directory...");
Console.WriteLine(exception.ToString());
if (findHandle != INVALID_HANDLE_VALUE)
{
FindClose(findHandle);
}
return(false);
}
if (findHandle != INVALID_HANDLE_VALUE)
{
FindClose(findHandle);
}
return(true);
}
