wp-theme/Gruntfile.js

module.exports = function( grunt ) {

    // Project configuration
    grunt.initConfig( {
        pkg:    grunt.file.readJSON( 'package.json' ),
        concat: {
            options: {
                stripBanners: true,
                banner: '/*! <%= pkg.title %> - v<%= pkg.version %>\n' +
                ' * <%= pkg.homepage %>\n' +
                ' * Copyright (c) <%= grunt.template.today("yyyy") %>;' +
                ' * Licensed GPLv2+' +
                ' */\n'
            },
            main: {
                src: [
                    'assets/js/src/ascribe.js'
                ],
                dest: 'assets/js/ascribe.js'
            }
        },
        jshint: {
            all: [
                'Gruntfile.js',
                'assets/js/src/**/*.js',
                'assets/js/test/**/*.js'
            ]
        },
        uglify: {
            all: {
                files: {
                    'assets/js/ascribe.min.js': ['assets/js/ascribe.js']
                },
                options: {
                    banner: '/*! <%= pkg.title %> - v<%= pkg.version %>\n' +
                    ' * <%= pkg.homepage %>\n' +
                    ' * Copyright (c) <%= grunt.template.today("yyyy") %>;' +
                    ' * Licensed GPLv2+' +
                    ' */\n',
                    mangle: {
                        except: ['jQuery']
                    }
                }
            }
        },

        less:   {
            all: {
                options: {
                    sourceMap: false
                },
                files: {
                    'assets/css/ascribe.css': 'assets/css/less/ascribe.less'
                }
            }
        },


        postcss: {
            dist: {
                options: {
                    processors: [
                        require('autoprefixer-core')({browsers: 'last 2 versions'})
                    ]
                },
                files: {
                    'assets/css/ascribe.css': [ 'assets/css/ascribe.css' ]
                }
            }
        },

        cssmin: {
            options: {
                banner: '/*! <%= pkg.title %> - v<%= pkg.version %>\n' +
                ' * <%=pkg.homepage %>\n' +
                ' * Copyright (c) <%= grunt.template.today("yyyy") %>;' +
                ' * Licensed GPLv2+' +
                ' */\n'
            },
            minify: {
                expand: true,

                cwd: 'assets/css/',
                src: ['ascribe.css'],

                dest: 'assets/css/',
                ext: '.min.css'
            }
        },
        watch:  {
            //livereload: {
            //    files: ['assets/css/*.css'],
            //    options: {
            //        livereload: true
            //    }
            //},
            styles: {
                files: ['assets/css/less/**/*.less'],
                tasks: ['less', 'postcss', 'cssmin'],
                options: {
                    debounceDelay: 500
                }
            },
            scripts: {
                files: ['assets/js/src/**/*.js', 'assets/js/vendor/**/*.js'],
                tasks: ['jshint', 'concat', 'uglify'],
                options: {
                    debounceDelay: 500
                }
            }
        }
    } );

    // Load tasks
    require('load-grunt-tasks')(grunt);

    // Register tasks

    grunt.registerTask( 'css', ['less', 'postcss', 'cssmin'] );

    grunt.registerTask( 'js', ['jshint', 'concat', 'uglify'] );

    grunt.registerTask( 'default', ['css', 'js'] );

    grunt.util.linefeed = '\n';
};