build.sbt

lazy val slickVersion = "3.2.0"

libraryDependencies ++= Seq(
    "com.typesafe.slick" %% "slick" % slickVersion,
    "com.typesafe.slick" %% "slick-hikaricp" % slickVersion,
    "com.typesafe.slick" %% "slick-codegen" % slickVersion % "compile",
    "org.postgresql" % "postgresql" % "9.4.1212",
    "com.typesafe.slick" %% "slick-testkit" % "3.2.0" % "test"
)

// code generation task
lazy val slick = TaskKey[Seq[File]]("gen-tables")
lazy val slickCodeGenTask = (sourceManaged, dependencyClasspath in Compile, runner in Compile, streams) map { (dir, cp, r, s) =>
  val outputDir = (dir / "slick").getPath // place generated files in sbt's managed sources folder
val url = "jdbc:postgresql://localhost:5432/github_info?user=postgres&password=root&sslmode=disable" // connection info for a pre-populated throw-away, in-memory db for this demo, which is freshly initialized on every run
val jdbcDriver = "org.postgresql.Driver"
  val slickDriver = "slick.jdbc.PostgresProfile"
  val pkg = "com.knoldus.github.models"
  toError(r.run("slick.codegen.SourceCodeGenerator", cp.files, Array(slickDriver, jdbcDriver, url, outputDir, pkg), s.log))
  val fname = outputDir + "/com/knoldus/github/models/Tables.scala"
  Seq(file(fname))
}

slick <<= slickCodeGenTask // register manual sbt command
sourceGenerators in Compile <+= slickCodeGenTask // register automatic code generation on every compile, remove for only manual use

testOptions += Tests.Argument(TestFrameworks.JUnit, "-q", "-v", "-s", "-a")

parallelExecution in Test := false