sbt/project/HouseRulesPlugin.scala

64 lines
2.5 KiB
Scala

import sbt.*
import Keys.*
object HouseRulesPlugin extends AutoPlugin {
override def requires = plugins.JvmPlugin
override def trigger = allRequirements
override def projectSettings: Seq[Def.Setting[?]] = baseSettings
lazy val baseSettings: Seq[Def.Setting[?]] = Seq(
scalacOptions ++= Seq("-encoding", "utf8"),
scalacOptions ++= Seq("-deprecation", "-feature", "-unchecked"),
scalacOptions += "-language:higherKinds",
scalacOptions += "-language:implicitConversions",
scalacOptions ++= "-Xfuture".ifScala213OrMinus.value.toList,
scalacOptions ++= "-Xlint".ifScala2.value.toList,
scalacOptions ++= "-Xfatal-warnings"
.ifScala3x(_ => {
sys.props.get("sbt.build.fatal") match {
case Some(_) => java.lang.Boolean.getBoolean("sbt.build.fatal")
case _ => true
}
})
.value
.toList,
scalacOptions ++= "-Yinline-warnings".ifScala211OrMinus.value.toList,
scalacOptions ++= "-Yno-adapted-args".ifScala212OrMinus.value.toList,
scalacOptions ++= "-Ywarn-dead-code".ifScala2.value.toList,
scalacOptions ++= "-Ywarn-numeric-widen".ifScala2.value.toList,
scalacOptions ++= "-Ywarn-value-discard".ifScala2.value.toList,
scalacOptions ++= "-Ywarn-unused-import".ifScala2x(v => 11 <= v && v <= 12).value.toList,
scalacOptions ++= {
scalaPartV.value match {
case Some((3, _)) => Seq("-Wunused:imports,implicits") // ,nowarn
case Some((2, _)) => Seq("-Ywarn-unused:-privates,-locals,-explicits")
case _ => Seq.empty
}
},
scalacOptions ++= "-Xsource:3".ifScala2.value.toList
) ++ Seq(Compile, Test).flatMap(c =>
(c / console / scalacOptions) --= Seq("-Ywarn-unused-import", "-Xlint")
)
private def scalaPartV = Def setting (CrossVersion partialVersion scalaVersion.value)
private implicit final class AnyWithIfScala[A](val __x: A) {
def ifScala2x(p: Long => Boolean) =
Def.setting(scalaPartV.value.collect { case (2, y) if p(y) => __x })
def ifScala3x(p: Long => Boolean) =
Def.setting(scalaPartV.value.collect { case (3, y) if p(y) => __x })
def ifScalaLte(v: Long) = ifScala2x(_ <= v)
def ifScalaGte(v: Long) = ifScala2x(_ >= v)
def ifScala211OrMinus = ifScalaLte(11)
def ifScala211OrPlus = ifScalaGte(11)
def ifScala212OrMinus = ifScalaLte(12)
def ifScala213OrMinus = ifScalaLte(13)
def ifScala2 = ifScala2x(_ => true)
def ifScala3 = Def.setting(
if (scalaBinaryVersion.value == "3") Seq(__x)
else Nil
)
}
}