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JavaScript + Jenkins = Winning!

JavaScript + Jenkins = Winning!



How to build and analyze Javascript projects and integrate that with Jenkins CI

How to build and analyze Javascript projects and integrate that with Jenkins CI



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    JavaScript + Jenkins = Winning! JavaScript + Jenkins = Winning! Presentation Transcript

    • © 2011 @eriwen
    • Eric WendelinBlog: eriwen.comTwitter: @eriwenCode: git.io/eric
    • ( °□° ɐpuǝƃV• Tools that help your JS not suck• How to create a build for your client-side code• Automation with Jenkins• The hard part• Unicorns
    • The Situation
    • Programmers are expensiveMust prevent them from doing things below their pay grade
    • How do you do that?Automate tasks that dontrequire mental participation
    • Programmers are clever Must force them to writecode for the next engineer
    • Better for the next engineer?Must enforce conventions that make the code more understandable
    • ?
    • First things firstWe need automation tools
    • Static Analysis
    • JSHintjshint file.js --config config.json jshint.org
    • CSSLintcsslint --rules=rule,rule2 file.css csslint.net
    • Testing
    • Unit-testing• Jasmine (pivotal.github.com/jasmine)• QUnit (docs.jquery.com/QUnit)• YUI Test (yuilibrary.com/yui/docs/test)• Mocha (visionmedia.github.com/mocha)• Lots of others...
    • PhantomJSphantomjs your-runner.js file.html phantomjs.org
    • Xvfb
    • JsTestDriverjava -jar JsTestDriver.jar --tests allcode.google.com/p/js-test-driver/
    • Functional testing• Selenium (seleniumhq.org)• CasperJS (github.com/n1k0/casperjs)• zombie.js (zombie.labnotes.org)
    • Documentation
    • jsduckjsduck src/js --output target/docsgithub.com/senchalabs/jsduck
    • Page Speed
    • Closure Compiler java -jar compiler.jar --js file.js --js_output_file file.min.jscode.google.com/closure/compiler
    • YUI Compressor java -jar yuicompressor.jar -o .css$:-min.css *.cssdeveloper.yahoo.com/yui/compressor
    • Combine and gzipcat file1.js file2.js >> combined.jsgzip combined.jsmv combined.js{.gz,}
    • ?
    • The Build
    • Build Steps• Static Analysis• File Optimization (for production)• Automated Testing• Documentation• Report Results
    • Gradle
    • Dont have a build?
    • html5boilerplate.com
    • Introducing the Gradle Web Suite
    • git.io/gradlejsgit.io/gradlecssgit.io/gradlehtml
    • jenkins-ci.org
    • Crazy Simple Setupwget http://mirrors.jenkins-ci.org/war/latest/jenkins.warjava -jar jenkins.war
    • Source Control Plugins• Git• Mercurial• Bazaar• Subversion• CVS• Lots more...
    • Build System Plugins• Gradle• Maven• Ant• Rake• Lots more...
    • Runs pretty much everything• Ruby• Python• NodeJS• Groovy• Shell• Lots more...
    • Build Health Plugins• Violations Plugin• Selenium Plugin• Cobertura Plugin• Task Scanner Plugin• ...and, of course, Chuck Norris Plugin
    • The really hard part
    • 5 Stages of JS CI• No build server• Pulls from source control and runs metrics• Runs unit tests and fails build if necessary. One button push to staging/production env• Unit and acceptance tests run. Metrics affect build stability• Code deployed on every push that passes the build
    • Helpful Tweeters@ariyahidayat works on #phantomjs@gseguin helped me with QUnit/Phantom@builddoctor general CI advocate/guru@jfroma does cool #jsci on Windows@jamescarr couldve given this talk well
    • One more thing...
    • LCOV to Cobertura converter git.io/ltc
    • Code at: git.io/ericBlog: eriwen.comTwitter: @eriwen