Modern Web Application Development Workflow - EclipseCon France 2014

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MODERN WEB APPLICATION DEVELOPMENT WORKFLOW

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FIRST, LET’S LOOK AT THE PAST

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THROW A BUNCH OF HTML FILES

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THROW A BUNCH OF HTML FILES ADD A COUPLE OF CSS FILES

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THROW A BUNCH OF HTML FILES ADD A COUPLE OF CSS FILES PUT SOME JAVASCRIPT IN ALL THIS

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THROW A BUNCH OF HTML FILES ADD A COUPLE OF CSS FILES PUT SOME JAVASCRIPT IN ALL THIS AND CALL IT A DAY...

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COME BACK 6 MONTHS LATER AND TRY TO REMEMBER HOW TO MAINTAIN YOUR CODE

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Node.js ≠ Server-side JavaScript

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Node.js stand alone JavaScript runtime

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Node.js stand alone JavaScript runtime using v8, Chrome’s JavaScript engine

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Node.js stand alone JavaScript applications

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Node.js stand alone JavaScript applications created by JavaScript developers

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Node.js stand alone JavaScript applications created by JavaScript developers for JavaScript developers

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BRAND NEW WORLD

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JAVASCRIPT DEVELOPMENT TOOLS

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JAVASCRIPT DEVELOPMENT WORKFLOW

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A GOOD DEVELOPMENT WORKFLOW -HELPS YOU GET STARTED

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A GOOD DEVELOPMENT WORKFLOW -HELPS YOU GET STARTED -MAINTAINS YOUR DEPENDENCIES

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A GOOD DEVELOPMENT WORKFLOW -HELPS YOU GET STARTED -MAINTAINS YOUR DEPENDENCIES -ENFORCES BEST PRACTICES

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A GOOD DEVELOPMENT WORKFLOW -HELPS YOU GET STARTED -MAINTAINS YOUR DEPENDENCIES -ENFORCES BEST PRACTICES -PREPARES YOUR TOOLS

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A GOOD DEVELOPMENT WORKFLOW -HELPS YOU GET STARTED -MAINTAINS YOUR DEPENDENCIES -ENFORCES BEST PRACTICES -PREPARES YOUR TOOLS -FIGHTS REGRESSIONS

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A GOOD DEVELOPMENT WORKFLOW -HELPS YOU GET STARTED -MAINTAINS YOUR DEPENDENCIES -ENFORCES BEST PRACTICES -PREPARES YOUR TOOLS -FIGHTS REGRESSIONS -EASES THE RELEASE PROCESS

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HOW TO GET STARTED?

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YEOMAN Born in 2012 Various contributors (Employees from Google, Twitter, etc)

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YEOMAN scaffolding - structure - compilation - static analysis - dependencies management - development tools - unit testing

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YEOMAN download > npm install -g yo “-g” global install

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YEOMAN Various generators: ○ Angular ○ Ember ○ Backbone And all the other popular frameworks...

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YEOMAN angular.js generator > npm install -g generator-angular

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YEOMAN create an Angular project > yo angular

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Select some dependencies

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Choose some options

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It creates the project

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It downloads half of the internet

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It uses some dark magic

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Enjoy the view, Yeoman takes care of everything…

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What does the result look like?

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STRUCTURE

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CONTENT

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DEPENDENCIES

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DEV TOOLS

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IT’S MAGIC! and it will be your job to maintain it...

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HAPPY?

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BUT HOW DOES IT WORK?

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YEOMAN HAS FRIENDS

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BOWER

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GRUNT

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GULP

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AND OTHERS

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DEPENDENCIES MANAGEMENT

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BOWER

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BOWER Package manager for the web Born in 2012 Created by Twitter and other contributors over time

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BOWER Download > npm install -g bower

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Find a package: bower search

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Find more information: bower info

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BOWER Add a specific dependency > bower install jquery#1.10.2 --save install jquery and save this new dependency

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BOWER runtime dependencies in bower.json

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DEPENDENCIES

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BOWER Add all your dependencies > bower install

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See your dependencies: bower list

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BOWER Package management always comes with its set of problems:

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BOWER Package management always comes with its set of problems: - how can I create a new package?

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BOWER Package management always comes with its set of problems: - how can I create a new package? - how can I host a bower repository?

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Create a bower package: bower init

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BOWER Use bower with Git > bower install https://myrepository.git

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BOWER Host multiple versions > git tag -a 1.4 -m 'version 1.4' > bower install https://myrepository.git#1.4

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BOWER Download > bower install jquery > bower install git://github.com/jquery/jquery.git

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BOWER Registry https://github.com/bower/registry A simple web server listing Git repository URLs

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BOWER Register > bower register myrepository https://…git > bower install myrepository

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BUILD

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GRUNT GULP

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CONFIGURATION GULP CODE GRUNT

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EQUALLY POWERFUL

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GRUNT is a bit older so its ECOSYSTEM is more mature

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Grunt and Gulp development tools dependencies in package.json >npm install

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DEV TOOLS

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GRUNT

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GRUNT configuration over code grunt.initConfig({ lint: { src: 'src/<%= pkg.name %>.js' }, concat: { src: [ '' , '.js>' ], dest: '<%= pkg.name %>.js' } });

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GRUNT Configuration in Gruntfile.js

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GRUNT Global install before Grunt 0.4 Updating Grunt cannot break existing projects anymore

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GRUNT gruntfile.js structure 3 parts: -Task loading -Task configuration -Task registration

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GRUNT An example: Static code analysis with JSHINT

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GRUNT

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HOW DO YOU USE IT? >grunt >grunt jshint:all

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GULP

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GULP code over configuration gulp.src('src/main.mycss' ) .pipe(stylus()) .pipe(rename({ ext: 'css' })) .pipe(autoprefixer()) .pipe(cssmin()) .pipe(header( '/* All Right Reserved */' )) .pipe(gulp.dest( 'dist'))

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GULP Configuration in Gulpfile.js

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GULP gulpfile.js structure 3 parts: - task loading - task configuration - task registration

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GULP

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GULP differences with Grunt node.js streams (asynchronous by nature) nice and simple api less IO operations

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BUILD TASKS

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STATIC ANALYSIS grunt-contrib-jshint gulp-jshint Detect coding errors in your JavaScript files

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STATIC ANALYSIS Various style of reports (checkstyle, html, etc) Configuration in .jshtinrc

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MINIFICATION grunt-contrib-uglify gulp-uglify Reduce the size of JavaScript files

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CSS TRIMMING grunt-uncss gulp-uncss-task Remove unused CSS rules

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TESTING Frameworks: Jasmine & QUnit Runner: Karma Code Coverage: Istanbul

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LIVE RELOAD grunt-contrib-watch gulp-livereload Reload automatically the web application if some files have been changed

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init concat jshint min unit server endtoend watch WORKFLOW

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Orion Eclipse project Introduced in 2011 in the Eclipse Foundation

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Orion Two versions: Jetty or Node.js

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Orion npm install orion node node_modules/orion/server.js /projectpath

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PROJECTS MANAGEMENT

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EDITOR

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FIRST CLASS GIT SUPPORT

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PLUGINS

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READY TO DEPLOY

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DOCKER SUPPORT SOON

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WHAT ABOUT ECLIPSE?

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Back-end Lot of tooling for Java development Jetty, EclipseLink, Webtools, etc

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Front-end ...

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WHAT ABOUT OTHERS?

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Back-end Lot of tooling for Java development Jetty, EclipseLink, Webtools, etc

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TO SUM UP

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THANKS! Stéphane Bégaudeau Twitter: @sbegaudeau Google+: +stephane.begaudeau The research leading to these results has received funding from the European Union’s Seventh Framework Program (FP7/2007-2013) for CRYSTAL – Critical System Engineering Acceleration Joint Undertaking under grant agreement № 332830 and from specific national programs and/or funding authorities.