public async Task <FileStatistics> ProcessDir(string path, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
var info = new DirectoryInfo(path);
var dirs = info.GetDirectories();
var files = info.GetFiles();
if (IncludeExtensions.Count > 0)
{
files = files
.Where(p => IncludeExtensions.Contains(Path.GetExtension(p.Name)))
.ToArray();
}
var dirTasks = dirs.Select(p => Task.Run(
() => ProcessDir(Path.Combine(path, p.Name), cancellationToken),
cancellationToken));
var fileTasks = files.Select(p => Task.Run(
() => ProcessFile(Path.Combine(path, p.Name), cancellationToken),
cancellationToken));
var allTasks = dirTasks.Concat(fileTasks).ToArray();
await Task.WhenAll(allTasks).ConfigureAwait(false);
var statistics = new FileStatistics()
{
Count = 0,
Size = 0,
Lines = files.Length
};
statistics = allTasks.Aggregate(statistics, (acc, task) => acc.CombineWith(task.Result));
AddFileStatistics(path, true, statistics);
return(statistics);
}
string[] FilterFiles(string[] files)
{
return(files.Where(p =>
{
var extension = GetFullFileExtension(Path.GetFileName(p));
return IncludeExtensions.Contains(extension) && !ExcludeExtensions.Contains(extension);
}).ToArray());
}
