Gruntfile.js

module.exports = function (grunt) {

    grunt.loadNpmTasks('grunt-contrib-copy');
    grunt.loadNpmTasks('grunt-contrib-uglify');

    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),
        copy: {
            build: {
                files: [
                    {expand: true, flatten: true, src: ['src/*.*'], dest: 'dist/', filter: 'isFile'}
                ]
            }
        },
        uglify: {
            options: {
                ie8: true,
                mangle: {
                    // 可选：保留某些变量名不被混淆
                    reserved: ['jQuery', 'require', 'exports', 'module']
                },
                sourceMap: 'dist/bootstrap-tagsinput.min.js.map',
                sourceMappingURL: 'bootstrap-tagsinput.min.js.map'
            },
            build: {
                files: {
                    'dist/bootstrap-tagsinput.min.js': 'src/bootstrap-tagsinput.js',
                }
            }
        }
    });

    grunt.registerTask('default', ['copy:build', 'uglify:build']);
};