[xwiki-devs] [Proposal] WebJar integration in XWiki

Hi devs, I'd like to make it easy in XWiki to use javascript frameworks required by extensions. I've found the webjars project (http://webjars.org) which packages javascript frameworks in JAR files available in Maven Central. They work out of the box if you drop them in WEB-INF/lib in a Servlet 3.0 container (like Jetty 7). It works because the 3.0 spec says that any files located in META-INF/resources/<path> will be made available by the servlet container as static resources (accessible as <path>). However the servlet 3.0 specs doesn't support adding those JAR dynamically outside of WEB-INF/lib so it doesn't work with our extension mechanism. Thus I'm proposing the following (which I have tested to work): * Add a new WebJarFilter filter to web.xml * The URL to access, for ex, angular.js packaged in the http://repo2.maven.org/maven2/org/webjars/angularjs/1.1.5-1/angularjs-1.1.5… jar would be: /xwiki/webjar/angularjs/1.1.5/angular.js This allows for example to have a dep on: <dependency> <groupId>org.webjars</groupId> <artifactId>angularjs</artifactId> <version>1.1.5-1</version> <scope>runtime</scope> </dependency> Then in a JSX object: require(["/xwiki/webjar/angularjs/1.1.5/angular.js"], function() { … }); WDYT? Thanks -Vincent