[build.sbt example for spark proj] how-to define build.sbt for a spark project #spark #scala #build.sbt #sbt

build.sbt.scala

// add some stats for each test
testOptions in Test += Tests.Argument(TestFrameworks.ScalaTest, "-oD")

// might or might not suits your reqs
fork in Test := true

// might or might not suit your reqs
parallelExecution in Test := false

// the verbosity level after issuing the sbt test command
logLevel in test := Level.Info

// do not print success msgs
showSuccess := false

// allocate more mem to the JVM
javaOptions ++= Seq("-Xms1G", "-Xmx4G", "-XX:+CMSClassUnloadingEnabled")

// Settings , Tools , check run on file save in idea 
scalafmtOnCompile in ThisBuild := true
scalafmtTestOnCompile in ThisBuild := true


// print each test's score times .. 
testOptions in Test += Tests.Argument(TestFrameworks.ScalaTest, "-oD")

(sys.env.get("REPO_USR"), sys.env.get("REPO_PW")) match {
  case (Some(usr), Some(pw)) =>
    credentials += Credentials("Repo Realm", "corp.com", usr, pw)
  case _ =>
    println("[info] USERNAME and/or PASSWORD is missing for publishing to repo")
    credentials ++= Seq()
}
// todo:ysg start remove  ↓↓↓
// some useful code to remove later on, maybe ...
// todo:ysg stop  remove  ↑↑↑



// chk also global credentials file: 
// repositories file ~/.sbt/repositories