Generate a file containing sbt version information during the build. Using this, you can achieve a very simple version of ktoso/git-commit-id-maven-plugin

Keys.scala

val genVersionFile = TaskKey[Unit](
  "gen-version-file",
  "Generates a file in target containing the apps version"
)

Tasks.scala

  val yapDeploySettings = Seq[Setting[_]](
    bump in yap <<= yapBump,
    genVersionFile in yap <<= doGenVersionFile
  ) ++ Seq()

  lazy val doGenVersionFile = {
    (scalaVersion, baseDirectory, projectID) map { (sv, bd, pid) =>
      val buildSbt: File = bd / "build.sbt"
      val targetProperties: File = bd / "target" / ("scala-"+sv) / "classes" / "build.version"
      versionFrom(buildSbt) match {
        case Some(version) =>
          replaceFileContent(targetProperties, version)
          println("Generated version file in: " + targetProperties.getPath)

        case _ =>
      }
    }
  }