jruby-gradle-war-plugin

Plugin for creating JRuby-based web archives

In order to include Java-based dependencies in a .war file, declare those dependencies under the jrubyWar configuration, e.g.:

dependencies {
    jrubyWar group: 'org.apache.kafka', name: 'kafka_2.9.2', version: '0.8.+'
    jrubyWar group: 'log4j', name: 'log4j', version: '1.2.+', transitive: true
}

Dependencies declared under the jrubyWar configuration will be copied into .war/WEB-INF/libs when the archive is created.

Default Tasks

The plugin provides the following tasks:

• jrubyWar - Creates a runnable web archive file in build/libs for your project.
• jrubyClean - Cleans up the temporary directories that tasks like jrubyWar- Creates a war file

Creating a .war

A full example of this can be found in the hellowarld repository.

Configuring the war:

buildscript {
    repositories { jcenter() }

    dependencies {
        classpath group: 'com.github.jruby-gradle', name: 'jruby-gradle-war-plugin', version: '0.1.2+'
    }
}
apply plugin: 'com.github.jruby-gradle.war'


dependencies {
    gems 'rubygems:rake:10.0.+'
    gems 'rubygems:colorize:0.7.3'
    gems 'rubygems:sinatra:1.4.5'
}

jrubyWar {
    webInf {
        from 'Rakefile'
        from 'config.ru'
        into('app') { from 'app' }
    }
}

The above configuration will copy the contents of app/, Rakefile, and config.ru into the WEB-INF/ directory within the .war file

Once your application is ready, you can create the .war by executing the jrubyWar task:

$ ./gradlew jrubyWar
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:jrubyPrepareGems
/usr/home/tyler/.gradle/caches/modules-2/files-2.1/org.jruby/jruby-complete/1.7.15/4d9cb332bad3633c9c23a720542f456dc0c58a81/jruby-complete-1.7.15.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/installer.rb:507 warning: executable? does not in this environment and will return a dummy value
Successfully installed tilt-1.4.1
/usr/home/tyler/.gradle/caches/modules-2/files-2.1/org.jruby/jruby-complete/1.7.15/4d9cb332bad3633c9c23a720542f456dc0c58a81/jruby-complete-1.7.15.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/installer.rb:507 warning: executable? does not in this environment and will return a dummy value
Successfully installed rack-1.5.2
Successfully installed rack-protection-1.5.3
/usr/home/tyler/.gradle/caches/modules-2/files-2.1/org.jruby/jruby-complete/1.7.15/4d9cb332bad3633c9c23a720542f456dc0c58a81/jruby-complete-1.7.15.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/installer.rb:507 warning: executable? does not in this environment and will return a dummy value
Successfully installed rake-10.0.4
Successfully installed colorize-0.7.3
Successfully installed sinatra-1.4.5
6 gems installed
:jrubyPrepare
:jrubyWar

BUILD SUCCESSFUL

Total time: 20.342 secs
%

Once the .war has been created you can find it in build/libs and deploy that into a servlet container such as Tomcat or Jetty.