Example of adding a custom zipfile artifact to an sbt build

custom_zip_artifact.sbt

lazy val deleteZip = taskKey[Unit]("Delete python zipfile")

deleteZip := {
  val s: TaskStreams = streams.value
  s.log.info("delete python zip...")
  val cmd = "bash" :: "-c" :: "cd python && rm -f isarnproject.zip" :: Nil
  val stat = (cmd !)
  if (stat == 0) {
    s.log.info("delete zip succeeded")
  } else {
    throw new IllegalStateException("delete zip failed")
  }
}

lazy val zipPython = taskKey[File]("Generate python zipfile")

zipPython := {
  val s: TaskStreams = streams.value
  s.log.info("zipping python...")
  val zip = "bash" :: "-c" :: "cd python && zip -r isarnproject isarnproject" :: Nil
  val stat = (zip !)
  if (stat == 0) {
    s.log.info("python zip succeeded")
  } else {
    throw new IllegalStateException("python compile failed")
  }
  baseDirectory.value / "python" / "isarnproject.zip"
}

zipPython <<= zipPython.dependsOn(deleteZip)

addArtifact(Artifact("isarn-sketches-spark", "zip", "zip"), zipPython)