gistfile1.js

/*global module:false*/                                                                                                                                                                                                                       
module.exports = function(grunt) {
    grunt.initConfig({
        sass: {
            dist: {
                options: {
                    compass: true
                },  
                files: {
                    'dist/build/main.css': 'app/styles/sass/main.scss'
                }   
            },  
            dev: {
                options: {
                    compass: true,
                    expanded: true
                },  
                files: {
                    'app/styles/css/main.css': 'app/styles/sass/main.scss'
                }   
            }   
        }   
    }); 

    grunt.loadNpmTasks('grunt-contrib-sass');
};