public void AddFileActionToTrackedFile(TrackedFile file, TrackedFileAction action)
{
if (file == null)
{
file = new TrackedFile();
_trackedFiles.Add(file);
}
file.Actions.Add(action);
}
private void CrawlDirectory(string path)
{
IEnumerable<string> filesInDirectory = _fileSystem.Directory.GetFiles(path);
IEnumerable<string> subfolders = _fileSystem.Directory.GetDirectories(path);
var trackedFiles = _trackedFileStore.GetTrackedFilesInPath(path) ?? new TrackedFile[0];
var processedTrackedFileNames = new List<string>();
foreach (var trackedFile in trackedFiles)
{
var lastAction = trackedFile.Actions
.OrderByDescending(x => x.EffectiveDateUtc)
.First();
var filePath = Path.Combine(lastAction.Path, lastAction.FileName);
var fileInfo = _fileSystem.FileInfo.FromFileName(filePath);
processedTrackedFileNames.Add(filePath);
// Check if the file was modified at all
if (!fileInfo.Exists)
{
var newAction = new TrackedFileAction
{
Action = FileActions.Deleted,
Path = path,
FileName = lastAction.FileName,
FileLength = 0,
EffectiveDateUtc = DateTime.Now.ToUniversalTime(),
FileLastModifiedDateUtc = DateTime.Now.ToUniversalTime()
};
_trackedFileStore.AddFileActionToTrackedFile(trackedFile, newAction);
}
else if (FileWasModified(lastAction,fileInfo))
{
var newAction = new TrackedFileAction
{
Action = FileActions.Modified,
Path = fileInfo.DirectoryName,
FileName = fileInfo.Name,
FileLength = fileInfo.Length,
FileLastModifiedDateUtc = fileInfo.LastWriteTimeUtc,
EffectiveDateUtc = DateTime.Now.ToUniversalTime()
};
_trackedFileStore.AddFileActionToTrackedFile(trackedFile, newAction);
}
}
foreach (var filename in filesInDirectory)
{
var filePath = Path.Combine(path, filename);
var fileInfo = _fileSystem.FileInfo.FromFileName(filePath);
// Check if this is a new, non-tracked file
if (!processedTrackedFileNames.Any(x => x.Equals(filename, StringComparison.OrdinalIgnoreCase)))
{
var action = new TrackedFileAction
{
Action = FileActions.Added,
Path = fileInfo.DirectoryName,
FileName = fileInfo.Name,
FileLength = fileInfo.Length,
FileLastModifiedDateUtc = fileInfo.LastWriteTimeUtc,
EffectiveDateUtc = DateTime.Now.ToUniversalTime()
};
_trackedFileStore.AddFileActionToTrackedFile(null, action);
}
}
foreach (var subfolder in subfolders)
{
CrawlDirectory(subfolder);
}
}
private bool FileWasModified(TrackedFileAction lastAction, FileInfoBase fileInfo)
{
if (lastAction.FileLength != fileInfo.Length)
return true;
if (lastAction.FileLastModifiedDateUtc < fileInfo.LastWriteTimeUtc)
return true;
return false;
}