Automate your front-end workflow with grunt.js 

About this This talk is about workflow patterns using Grunt reinvent your work, love JS more make your life easier 

Who Dimitris Tsironis Front-end Engineer at Splunk (ex-Bugsense) ! passionate about bringing BigData to the masses, eating bacon & geeing around 

First, a story from good ol’ days 

Run JavaScript Code!!!!11! First 

Run JavaScript Code!!!!11! First 

Now 

Now 

No content

No content

No content

*cough* *cough* 

Problem typical js file, named stuff.js 

grunt is a task-based command line build tool for JavaScript projects 

Grunt.js is used for Concatenation Testing with headless browsers JS linting basically, whatever 

Installation $ npm install -g grunt-cli Install the grunt cli tool 

Installation Edit your package.json file { "name": "my-project-name", "version": "0.1.0", "devDependencies": { "grunt": "~0.4.2", "grunt-contrib-jshint": "~0.6.3" } } grunt.loadNpmTasks(‘grunt-contrib-uglify'); Then in your Gruntfile.js add 

Gruntfile.js module.exports = function(grunt) { ! // Project configuration. grunt.initConfig({ pkg: grunt.file.readJSON('package.json'), uglify: { options: { banner: '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n' }, build: { src: 'src/<%= pkg.name %>.js', dest: 'build/<%= pkg.name %>.min.js' } } }); ! // Load the plugin that provides the "uglify" task. grunt.loadNpmTasks('grunt-contrib-uglify'); ! // Default task(s). grunt.registerTask('default', ['uglify']); ! }; 

Concatenating module: grunt-contrib-concat concat: { ‘assets/js/main.js’: [ ‘js/libs/jquery.js’, ‘js/libs/underscore.js’ ‘js/libs/backbone.js, ‘js/src/app.js’], ‘assets/css/style.css’: [ ‘css/bootstrap.css’, ‘css/main.css’] } 

Compiling LESS module: grunt-contrib-less less: { dashboard: { files: { "css/main.css": "less/style.less", "css/landing.css": "less/landing.less", } } } 

Running specs #1 module: grunt-contrib-jasmine jasmine: { src: [ 'specs/project.js'], options: { host: 'http://localhost:7000/', vendor: [ ‘libs/jquery.js’], helpers: [ 'specs/jasmine-jquery/lib/jasmine-jquery.js', ‘specs/bower_components/sinonjs/sinon.js' ], template: 'specs/index.tmpl', specs: 'specs/build/specs.js', keepRunner: true } }, 

Running specs #2 module: grunt-contrib-connect connect: { server: { options: { port: 7000 } } } grunt.registerTask('specs', ['connect', 'jasmine']); Registering our custom “specs” tasks 

Watching files module: grunt-contrib-watch watch: { gruntfile: { files: '<%= jshint.gruntfile.src %>', tasks: ['jshint:gruntfile', 'concat', 'less'] }, less: { files: “less/**/*.less”, /* or use an array */ tasks: [‘less’, ‘concat’] }, specs: { files: “specs/**/*Specs.js” tasks: [‘specs’] } } 

Live reload module: grunt-reload reload: { port: 6001, proxy: { host: 'localhost' } }, watch: { less: { files: “less/**/*.less”, /* or use an array */ tasks: [‘less’, ‘concat’, ‘reload’] } } 

bower a package manager for the web 

Installation $ npm install -g bower Install the bower tool 

Usage $ bower install Install the bower tool $ bower install # or just install dependencies from bower.json $ bower install 

Search $ bower search Search the packages 

/etc/ $ bower help Help is always provided 

Defining a new package $ bower init { "name": "my-project", "version": "1.0.0", "main": "path/to/main.css", "ignore": [ ".jshintrc", "**/*.txt" ], "dependencies": { "": "" }, "devDependencies": { "": "" } } 

Registering a package $ bower register a valid manifest JSON Git tags (using semver) be available at a Git endpoint (e.g., GitHub); remember to push your Git tags! 

Bugsense.js plugin (see Gruntfile.js & bower.json) Addy Osmani presentation Grunt plugins Bower homepage (incl. Yeomann) Grunt homepage 

Thanks! twitter @tsironakos github @tsironis