nodejs: remove empty directories recursively which are older than 2 days

cleanEmptyFoldersRecursively.js

function cleanEmptyFoldersRecursively(folder) {
	var fs = require('fs');
	var path = require('path');

	var folderStat = fs.statSync(folder);
	var isDir = folderStat.isDirectory();

	if (!isDir) {
		return;
	}

	var files = fs.readdirSync(folder);
	if (files.length > 0) {
		files.forEach(function(file) {
			var fullPath = path.join(folder, file);
			cleanEmptyFoldersRecursively(fullPath);
		});

		// re-evaluate files; after deleting subfolder
		// we may have parent folder empty now
		files = fs.readdirSync(folder);
	}

	if (files.length == 0) {
		var cutoff = new Date().getTime() - ( 2 * 24 * 60 * 60 * 1000 ); // 2 days old
		var folderCreatedDate = new Date(folderStat.mtime).getTime();
		if(folderCreatedDate < cutoff) {
			console.log("removing: ", folder);
			fs.rmdirSync(folder);
			return;
		} else {
			return;
		}
	}
}