gistfile1.txt

import sbt._
import Keys._
import sbtassembly.Plugin._
import AssemblyKeys._

object MyBuild extends Build {

  val myProject = Project("my-awesome-project", file("."))
                    .settings(assemblySettings: _*)
                    .settings(distributionSettings: _*)

  def dist = TaskKey[Unit]("dist", "Create a distribution")
  def distributionSettings: Seq[Setting[_]] = Seq(
    mainClass in assembly := Some("com.cra.testharness.Launch"),
    dist <<= (assembly in Compile, name, version) map {
      (jar, name, version) => {
         // populate some directory with jar and other files...
    }
  )
}