Node.JS static file web server. Put it in your path to fire up servers in any directory, takes an optional port argument.

static_server.js

var http = require("http"),
    url = require("url"),
    path = require("path"),
    dir = require('node-dir'),
    swig  = require('swig'),
    fs = require("fs"),

    SERVER = "server",
    BUILD = "build",

    SOURCE_FOLDER = "/source",
    BUILD_FOLDER = "/build",


    command = process.argv[2] || SERVER,
    port = process.argv[3] || 8888
    ;

    console.log( "Params:", process.argv[2] );

var deleteFolderRecursive = function(path) {
    var files = [];
    if( fs.existsSync(path) ) {
        files = fs.readdirSync(path);
        files.forEach(function(file,index){
            var curPath = path + "/" + file;
            if(fs.lstatSync(curPath).isDirectory()) { // recurse
                deleteFolderRecursive(curPath);
            } else { // delete file
                fs.unlinkSync(curPath);
            }
        });
        fs.rmdirSync(path);
    }
};

//Create Server
if ( command  == SERVER ){
  http.createServer(function(request, response) {

    var uri = url.parse(request.url).pathname
      , filename = path.join(process.cwd(), SOURCE_FOLDER, uri);
    console.log("File:", filename, "Uri", uri, "cwd",process.cwd());
    path.exists(filename, function(exists) {
      if(!exists) {
        response.writeHead(404, {"Content-Type": "text/plain"});
        response.write("404 Not Found\n");
        response.end();
        return;
      }

      if (fs.statSync(filename).isDirectory()) filename += '/index.html';

      fs.readFile(filename, "binary", function(err, file) {
        if(err) {        
          response.writeHead(500, {"Content-Type": "text/plain"});
          response.write(err + "\n");
          response.end();
          return;
        } 

        swig.setDefaults({ cache: false });
        response.writeHead(200);
        response.write( swig.renderFile(filename), "binary");
        response.end();
      });
    });
  }).listen(parseInt(port, 10));

  console.log("Static file server running at\n  => http://localhost:" + port + "/\nCTRL + C to shutdown");

}
// Create Build
else if (command == BUILD ){

  console.log("Create Build");

  var folder = path.join(process.cwd(), BUILD_FOLDER);
  //Create Build Folder
  deleteFolderRecursive(folder);
  fs.mkdir(folder);

  // match only filenames with a .txt extension and that don't start with a `.´
  dir.readFiles(__dirname, {
      match: /.html$/,
      exclude: /^\./
      }, function(err, content, next) {
          if (err) throw err;

          //console.log('content:', content);
          next();
      },
      function(err, files){
          if (err) throw err;
          for (var i = 0; i<files.length; i++) {
            var file = files[i],
                dir = file.split("/").slice(0, -1).join("/").replace(SOURCE_FOLDER,BUILD_FOLDER) ;
            
            if (!fs.existsSync(dir)) {  
                fs.mkdir(dir);  
            } 
            //console.log("File:", file, " Dir:", dir);
            fs.writeFile(file.replace(SOURCE_FOLDER,BUILD_FOLDER), swig.renderFile(file), function(err) {
                if(err) {
                    console.log(err);
                } else {
                    console.log("The file was saved!", file);
                }
            }); 
          }
          //console.log('finished reading files:',files);
      });

}