Gruntfile.js

/*global module:false*/
module.exports = function(grunt) {

    // Project configuration.
    grunt.initConfig({
        // Metadata.
        pkg: grunt.file.readJSON('package.json'),

        // Task configuration.
        uglify: {
            options: {
                banner: '<%= banner %>'
            },
            dist: {
                src: 'app/application.js',
                dest: 'dist/application.js'
            }
        },

        less: {
            dev: {
                files: { 'app/css/styles.css': 'app/less/styles.less' },
            },
            prod: {
                files: { 'app/css/styles.css': 'app/less/styles.less' },
                options: { yuicompress: true }
            }
        },

        htmlmin: {
            dist: {
                files: {'dist/index.html': 'app/index.html'},
                options: {
                    removeComments: true,
                    collapseWhitespace: true
                }
            }
        },

        imagemin: {
            dist: {
                options: {
                    optimizationLevel: 7,
                    progressive: true
                },
                files: {
                    'dist/imgs/': 'app/imgs/*',
                    'dist/imgs/icons/': 'app/imgs/icons/*',
                    'dist/css/cupertino/images/': 'app/css/jquery-ui/cupertino/images/*'
                }
            }
        },

        cssmin: {
            dist: {
                files: {
                    'dist/css/styles.css': [
                        'app/css/jquery-ui/cupertino/jquery-ui.min.css',
                        'app/css/styles.css'
                    ]
                },
                options: {
                    keepSpecialComments: 0,
                    report: 'min'
                }
            }
        },

        clean: ['dist'],

        jasmine: {
            test: {
                src: 'app/application.js',
                options: {
                    specs: 'app/tests/*.js',
                    styles: 'css/styles.css'
                }
            }
        },

        watch: {
            js: {
                files: [
                    'app/controllers/**',
                    'app/less/**',
                    'app/extras/**',
                    'app/less/**',
                    'app/models/**',
                    'app/routes/**',
                    'app/templates/**',
                    'app/vendor/**',
                    'app/views/**',
                    'routes.js',
                    'store.js',
                    'app.js'
                ],
                tasks: ['build']
            },
            less: {
                files: ['app/less/*'],
                tasks: ['less:dev']
            }
        }
    });

    // These plugins provide necessary tasks.
    (function() {
        grunt.loadNpmTasks('grunt-contrib-concat');
        grunt.loadNpmTasks('grunt-contrib-uglify');
        grunt.loadNpmTasks('grunt-contrib-htmlmin');
        grunt.loadNpmTasks('grunt-contrib-imagemin');
        grunt.loadNpmTasks('grunt-contrib-cssmin');
        grunt.loadNpmTasks('grunt-contrib-less');
        grunt.loadNpmTasks('grunt-contrib-jasmine');
        grunt.loadNpmTasks('grunt-contrib-clean');
        grunt.loadNpmTasks('grunt-contrib-watch');
    })()

    grunt.registerTask('build', 'Runs ember-tools build command', function() {
        var done = this.async();
        grunt.util.spawn({ cmd: 'ember', args: ['build'] }, function(e, result) {
            grunt.log.writeln(result);
            done();
        });
    });

    grunt.registerTask('prepare-dist', 'Creates folders needed for distribution', function() {
        var folders = ['dist/css/images', 'dist/imgs/icons'];
        for (var i in folders) {
            var done = this.async();
            grunt.util.spawn({ cmd: 'mkdir', args: ['-p', folders[i]] }, function(e, result) {
                grunt.log.writeln('Folder created');
                done();
            });
        }
    });

    grunt.registerTask('default', ['dist']);

    grunt.registerTask('dist', [
        'clean',
        'prepare-dist',
        'build',
        'compress',
        'jasmine'
    ]);

    grunt.registerTask('compress', [
        'less:prod',
        'htmlmin',
        'imagemin',
        'cssmin',
        'uglify'
    ]);

    grunt.registerTask('css', ['less:dev']);

    grunt.registerTask('css-prod', ['less:prod']);

};