Artifact.cs

using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using HeyRed.MarkdownSharp;

namespace Artifact
{
    class Program
    {

        static void Main(string[] args)
        {
            string path = GetWorkingDirectory(args);
            Console.WriteLine("Starting traversal in: " + path);
            Traverse(path, Markdowner); 
        }


        static void Markdowner(FileInfo f)
        {
            if (Path.GetExtension(f.FullName) != ".txt") return;

            Markdown mark = new Markdown();
            var html = mark.Transform(File.ReadAllText(f.FullName));
            var outfile = File.CreateText(Path.ChangeExtension(f.FullName, ".html"));
            outfile.Write(html);
            outfile.Close();
        }
            
        static void Traverse(string path, Action<FileInfo> action)
        {
            DirectoryInfo files = new DirectoryInfo(path);

            foreach (var d in files.EnumerateDirectories())
            {
                Traverse(d.FullName, action);
                Console.WriteLine(d.FullName);

                foreach (var f in d.EnumerateFiles())
                {
                    Console.WriteLine(f.Name);
                    action(f);
                } 

            }

            foreach (var f in files.EnumerateFiles())
            {
                Console.WriteLine(f.Name);
                action(f);
            } 
        }


        private static string GetWorkingDirectory(string[] args)
        {
            string path = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);

            if (args.Length < 1) Console.WriteLine("Using application directory.");
            else if (!Directory.Exists(args[0])) Console.WriteLine("Directory does not exist: " + args[0]);
            else path = args[0];

            return path;
        }
    }
}