Grunt example file

Gruntfile.js

module.exports = function (grunt) {

    // Project configuration.
    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),
        jshint: {
            files: ['Gruntfile.js', 'generator/static/generator/js/*.js'],
            options: {
                globals: {
                    jQuery: true,
                    console: true,
                    module: true
                }
            }
        },
        uglify: {
            options: {
                compress: true,
                banner: '/*! <%= pkg.name %> - v<%= pkg.version %> - ' + '<%= grunt.template.today("yyyy-mm-dd") %> */'
            },
            my_target: {
                files: [{
                    expand: true,
                    cwd: 'generator/static/generator/js',
                    src: '**/*.js',
                    dest: 'static/dest/js/'
                }]
            }
        },

        sass: {
            dist: {
                options: {
                    style: 'expanded'
                },
                files: {
                    'generator/static/generator/css/style.css': 'generator/static/generator/scss/style.scss'
                }
            }
        },
        cssmin: {
            target: {
                files: [{
                    expand: true,
                    cwd: 'generator/static/generator/css',
                    src: ['*.css', '!*.min.css'],
                    dest: 'static/dest/css',
                    ext: '.min.css'
                }]
            }
        },
        browserSync: {
            dev: {
                bsFiles: {
                    src: [
                        'generator/static/generator/css/*.css'
                    ]
                },
                options: {
                    watchTask: true,
                    server: './',
                    proxy: "127.0.0.1:3000"
                }
            }
        },
        watch: {
            options: {
                livereload: true,
            },
            // html: {
            //     files: ['index.html'],
            // },
            js: {
                files: ['generator/static/generator/js/*.js'],
                tasks: ['jshint', 'uglify'],
            },
            sass: {
                options: {
                    livereload: false
                },
                files: ['generator/static/generator/scss/*.scss'],
                tasks: ['sass'],
            },
            css: {
                files: ['generator/static/generator/css/*.css'],
                tasks: ['cssmin']
            }
        }
    });

    // Load the plugin that provides the "uglify" task.
    grunt.loadNpmTasks('grunt-contrib');
    grunt.loadNpmTasks('grunt-contrib-uglify');
    grunt.loadNpmTasks('grunt-contrib-sass');
    grunt.loadNpmTasks('grunt-contrib-jshint');
    grunt.loadNpmTasks('grunt-browser-sync');
    grunt.loadNpmTasks('grunt-contrib-cssmin');
    grunt.loadNpmTasks('grunt-contrib-watch');

    // Default task(s).
    grunt.registerTask('default', ['watch', 'cssmin', 'sass', 'browserSync']);

};