node.js recursive function to read all files in directory (searches through all directories to find files)

recursivefs.js

//******************************************************/
//Include all files going one directory deep
//* @param {String} d - directory name of directory where search is occurring
//* @param {Array || String} exclude - array of file names {STRING} to skip
//******************************************************/

function fileSearch(d, exclude){
    var exclude = exclude || [];
    //in case string was passed instead of array
    if (typeof exclude == "String") exclude = exclude.split(',');
    var fs = require("fs");
    var path = require("path");

    //determine if directory contains index.js file
    function indexExists(dir){
        console.log('in indexexists', dir);
        return new Promise(function(resolve, reject){
            fs.readdir(dir, function(err, files) {
                console.log(files);
                files.find(function(file){
                    if(/^index\.js$/.test(file)){
                        return resolve('skip');
                    }
                });
                resolve('done');
            });

        });

    };

    //recursively search through directories and require files
    function searchdir(file_or_dir) {
        console.log('in searchdir', file_or_dir);
        indexExists(file_or_dir).then(function(result){
            console.log('result', result);
            //if this directory has it's own index.js file then skip it
            if(result == 'skip') return false;
            //array of all files in directory
            var fd = fs.readdirSync(file_or_dir);
            //iterate through files
            for(var q = 0; q < fd.length; q++){
                var item = fd[q];

                var p = path.join(file_or_dir, item);
                if (fs.lstatSync(p).isDirectory()) {
                    searchdir(p);
                } else {
                    //exclude any files passed in exclude array
                    var skip = false;
                    //exclude any files passed in exclude array
                    for(var z = 0; z < exclude.length; z++){
                        var ex = exclude[z];
                        if(item == ex){
                            skip = true;
                        }
                    }
                    if(skip) {
                        continue;
                    }
                    console.log(p);
                    require(p);
                }

            };//end for loop
        });


    };

    var fd = fs.readdirSync(d);
    console.log(fd.length);
    for(var i = 0; i < fd.length; i++){
        console.log(i);
        if(i > 4) break;
        var item = fd[i];

        //default exclude
        if(item == ".DS_Store" || item == ".git" || item == "index.js" || item == "test.js"){
            continue;
        }

        var p = path.join(d, item);

        if(fs.lstatSync(item).isDirectory()){
            searchdir(p);
        }else{
            //exclude any files passed in exclude array
            var skip;
            for(var m = 0; m < exclude.length; m++){
                var ex = exclude[i];
                if(item == ex){
                    skip = true;
                }
            }

            if(skip) continue;
            console.log(p);
            require(p);
        }


    };//end for files and directories

};

var d = __dirname;
fileSearch(d, ['skip-this-file.es6']);

Useful for webpack