gistfile1.js

        var directories = [
            './app',
            './app/controllers',
            './app/helpers',
            './app/repositories',
            './app/validations',
            './app/views',
            './app/views/partials'
        ]

        createDirectories(directories, function(result) {
            if (result) {
                writeBasicAppFiles(function() {
                    console.warn('New ThinAir has been created successfully!')
                })
            }
        })

function createDirectories(list, callback) {
    async.map(list, createDirectory, function(err, results) {
        callback(true)
    })

    function createDirectory(name) {
        fs.mkdir('./app', 0755, function(e) {
            if (e) {
                console.error('Error while creating', name)
                callback(false)
            } else {
                console.warn(' - Created directory:', name)
            }
        })
    }
}