Very nice little hack that Laurence put together to change the way one can package dependencies with assembly. This is potential useful for only hadoop based deployments

build.scala

  val IncludeInLib = Configurations.config("include-lib")                                                                                                                                                                                                                          
  def addSpecifiedDependenciesToLibInAssembly = inConfig(IncludeInLib)(Defaults.configSettings) ++ Seq(                                                                                                                                                                            
    (libraryDependencies in IncludeInLib) := Nil, // needed otherwise scala library gets included.                                                                                                                                                                                 
    (assembledMappings in assembly) <<= (libraryDependencies in IncludeInLib, externalDependencyClasspath in IncludeInLib, assembledMappings in assembly) map ((specified, managed, mappings) => {                                                                                 
      {                                                                                                                                                                                                                                                                            
        val filtered = managed.filter(af => specified.map(_.organization).exists(_ == af.get(moduleID.key).get.organization))                                                                                                                                                      
        val managedMappings = filtered.map(_.data).map(f => MappingSet(Some(f), Vector(f -> ("lib/" + f.getName))))         
        for (mappingSet <- managedMappings; mapping <- mappingSet.mappings) {                                               
          val (file, path) = mapping                                                                                        
          println("Adding managed (include in lib) dependency at " + path)                                                  
        }                                                                                                                   
        managedMappings ++ mappings                                                                                         
      }                                                                                                                     
    })                                                                                                                      
  )   
  
addSpecifiedDependenciesToLibInAssembly

(libraryDependencies in IncludeInLib) := Seq("org.apache.hive" % "hive-builtins" % "0.10.0.jar" intransitive())