A synchronous directory walk for targeting files.

followSync.js

var fs = require('fs');
var path = require('path');

function followSync (start, fun) {
    var found = [];
    var isfun = (typeof fun === "function");
    (function sync (trail) {
        fs.readdirSync(trail).forEach(function (breadcrumb) {
            var next = path.join(trail, breadcrumb);
            fs.statSync(next).isDirectory() ?
                sync(next) : found.push(next) && isfun && fun(breadcrumb, trail);
        });
    })(path.normalize(start));
    return found;
}

followSync(".", function (filename, trailname) {
    console.log("%s/%s", trailname, filename);
});

// or...
// var found = followSync(".");