File system watcher

run.cs

using api.general;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace console
{
    class run
    {
        static void Main(string[] args)
        {
            watcher w = new watcher();
            w.watch(@"D:\htdocs", "*.*", true);
            //w.watch(@"D:\htdocs", "*.css", true);

            // *.css watcher
            // *.txt watcher
            // *.log watcher
            // *.html watcher
            // *.php watcher

            // @todo remove: Wait for the user to quit the program.
            Console.WriteLine("Press \'q\' to quit the sample.");
            while (Console.Read() != 'q') ;
        }
    }
}

watcher.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Permissions;
using System.Text;
using System.Threading.Tasks;

namespace api.general
{
    /**
     * @todo Watch directory changes
     * @todo If directory was deleted, does not catch file names as deleted
     */
    public class watcher
    {
        [PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
        [IODescription("FSW_IncludeSubdirectories")]
        public void watch(string path = "/tmp", string filter = "*.txt", bool deepWatchSubdirectories = false)
        {
            // Create a new FileSystemWatcher and set its properties.
            FileSystemWatcher watcher = new FileSystemWatcher();
            watcher.IncludeSubdirectories = deepWatchSubdirectories;

            watcher.Path = path;

            /* Watch for changes in LastAccess and LastWrite times, and the renaming of files or directories. */
            watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName;

            // Only watch specified file extensions.
            watcher.Filter = filter;

            // Add event handlers.
            watcher.Created += new FileSystemEventHandler(OnCreated);
            watcher.Changed += new FileSystemEventHandler(OnChanged);
            watcher.Renamed += new RenamedEventHandler(OnRenamed);
            watcher.Deleted += new FileSystemEventHandler(OnDeleted);

            // Begin watching.
            watcher.EnableRaisingEvents = true;
        }

        // Define the event handlers.
        private static void OnCreated(object source, FileSystemEventArgs e)
        {
            // Specify what is done when a file is changed, created, or deleted.
            Console.WriteLine("File Created: " + e.FullPath + " " + e.ChangeType);
        }

        private static void OnChanged(object source, FileSystemEventArgs e)
        {
            // Specify what is done when a file is changed, created, or deleted.
            Console.WriteLine("File Changed: " + e.FullPath + " " + e.ChangeType);
        }

        private static void OnRenamed(object source, RenamedEventArgs e)
        {
            // Specify what is done when a file is renamed.
            Console.WriteLine("File Renamed: {0} renamed to {1}", e.OldFullPath, e.FullPath);
        }

        private static void OnDeleted(object source, FileSystemEventArgs e)
        {
            Console.WriteLine("File Deleted: " + e.FullPath + " " + e.ChangeType);
        }
    }
}