private (LineCount current, LineCount previous) AddOrUpdateLineCount(string filePath, int count)
{
var current = new LineCount(count);
LineCount previous;
lock (PathLineCounts)
{
if (PathLineCounts.TryGetValue(filePath, out previous))
{
PathLineCounts.Remove(filePath);
}
PathLineCounts.Add(filePath, current);
}
return(current, previous);
}
public void OnFileRemoved(TrackedFileEventArgs file)
{
var filePath = file.Path;
// Cancel an outstanding line count task for this file, if one exists
lock (OutstandingLineCounts)
{
if (OutstandingLineCounts.TryGetValue(filePath, out var task))
{
task.Cancel();
}
}
lock (PathLineCounts)
{
// NOTE: if the key doesn't exist, the method will return null,
// not throw an exception, per method documentation
PathLineCounts.Remove(filePath);
}
}
