FileScanner

FileScanner scans the tree structure of a filesystem for files that match its configured criteria. It uses concurrent threads.

IFileSystem fs = new MemoryFileSystem();
fs.CreateDirectory("myfile.zip/folder");
fs.CreateFile("myfile.zip/folder/somefile.txt");

FileScanner filescanner = new FileScanner(fs);

FileScanner needs to be populated with at least one filter, such as wildcard pattern, .AddWildcard(string).

filescanner.AddWildcard("*.zip");

Or regular expression.

filescanner.AddRegex(path: "", pattern: new Regex(@".*\.zip"));

Or glob pattern.

filescanner.AddGlobPattern("**.zip/**.txt");

The initial start path is extracted from the pattern.

filescanner.AddGlobPattern("myfile.zip/**.txt");

Search is started when IEnumerator<IEntry> is enumerated from the scanner.

foreach (IEntry entry in filescanner)
{
    Console.WriteLine(entry.Path);
}

Exceptions that occur at real-time can be captured into concurrent collection.

// Collect errors
filescanner.errors = new ConcurrentBag<Exception>();
// Run scan
IEntry[] entries = filescanner.ToArray();
// View errors
foreach (Exception e in filescanner.errors) Console.WriteLine(e);

The property .ReturnDirectories determines whether scanner returns directories.

filescanner.ReturnDirectories = true;

The property .SetDirectoryEvaluator(Func<IEntry, bool> func) sets a criteria that determines whether scanner enters a directory.

filescanner.SetDirectoryEvaluator(e => e.Name != "tmp");