in NodeJS get a list of files, depth first down the directory tree, matching a certain function

index.js

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

function listFileMatches( p, f ){
	var fileList = [];

	fs.readdirSync(p).forEach(function(d,i){
		var fullPath = path.join(p, d);
		if (fs.statSync( p + '/' + d ).isDirectory()){
			fileList = fileList.concat( listFileMatches(fullPath, f) );
		}
		if ( f(d) ){
			fileList = fileList.concat( fullPath );
		}
	});
	return fileList;
}

//eg. build a list of shapefiles that have names that aren't just '.shp'
console.log( listFileMatches('./', function(d){ return d.indexOf('.shp')>0; }) );