sbt/project/PublishBinPlugin.scala

import sbt._, Keys._

/** This local plugin provides ways of publishing just the binary jar. */
object PublishBinPlugin extends AutoPlugin {
  override def requires = plugins.JvmPlugin
  override def trigger = allRequirements

  object autoImport {
    val publishLocalBin = taskKey[Unit]("")
    val publishLocalBinConfig = taskKey[PublishConfiguration]("")
  }

  import autoImport._

  override def globalSettings = Seq(publishLocalBin := (()))

  override def projectSettings = Def settings (
    publishLocalBin := Classpaths.publishTask(publishLocalBinConfig, deliverLocal).value,
    publishLocalBinConfig := Classpaths.publishConfig(
      (packagedArtifacts in publishLocalBin).value,
      Some(deliverLocal.value),
      (checksums in publishLocalBin).value,
      logging = ivyLoggingLevel.value,
      overwrite = isSnapshot.value
    ),
    packagedArtifacts in publishLocalBin := Classpaths.packaged(Seq(packageBin in Compile)).value
  )
}