Gruntfile.js

module.exports = function(grunt) {
    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),
        sass: {
            dist: {
                options: {
                    sourcemap: 'none',
                    style: 'compressed',
                },
                files: [{
                    expand: true,
                    cwd: 'sass',
                    src: ['*.scss'],
                    dest: 'public/css',
                    ext: '.css'
                }]
            }
        },
        watch: {
            sass: {
                files: ['sass/*.scss'],
                tasks: ['sass']
            },
            styles: {
                files: ['public/css/*.css']
            }
        }
    });
  
    grunt.loadNpmTasks('grunt-contrib-sass');
    grunt.loadNpmTasks('grunt-contrib-watch');
  
    grunt.registerTask('default', ['sass']);
  };