bcfa1b8586
For details on how these differ see: https://www.scala-sbt.org/1.x/docs/Cross-Build.html#More+about+using+cross-built+libraries The motivaton for this is so this part of the build doesn't need to be (ironically) patched when running with a binary-compatible build of the next patch release of Scala (e.g. Scala 2.13.2-bin-SHA). Ideally this could be backported to the release-2.5 branch so it would be immediately of use, otherwise it'll only be available in the community builds that track Akka 2.6.
94 lines
3.2 KiB
Scala
94 lines
3.2 KiB
Scala
/*
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* Copyright (C) 2019 Lightbend Inc. <https://www.lightbend.com>
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*/
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package akka
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import sbt._
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import Keys.{ scalacOptions, _ }
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import sbt.plugins.JvmPlugin
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object AkkaDisciplinePlugin extends AutoPlugin with ScalafixSupport {
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import scalafix.sbt.ScalafixPlugin
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override def trigger: PluginTrigger = allRequirements
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override def requires: Plugins = JvmPlugin && ScalafixPlugin
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override lazy val projectSettings = disciplineSettings
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// We allow warnings in docs to get the 'snippets' right
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val nonFatalWarningsFor = Set("akka-docs")
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val strictProjects = Set("akka-discovery", "akka-protobuf", "akka-coordination")
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lazy val scalaFixSettings = Seq(Compile / scalacOptions += "-Yrangepos")
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lazy val silencerSettings = {
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val silencerVersion = "1.4.4"
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Seq(
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libraryDependencies ++= Seq(
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compilerPlugin("com.github.ghik" %% "silencer-plugin" % silencerVersion cross CrossVersion.patch),
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"com.github.ghik" %% "silencer-lib" % silencerVersion % Provided cross CrossVersion.patch))
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}
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lazy val disciplineSettings =
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scalaFixSettings ++
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silencerSettings ++ Seq(
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Compile / scalacOptions ++= (
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if (!nonFatalWarningsFor(name.value)) Seq("-Xfatal-warnings")
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else Seq.empty
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),
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Test / scalacOptions --= testUndicipline,
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Compile / console / scalacOptions --= Seq("-deprecation", "-Xfatal-warnings", "-Xlint", "-Ywarn-unused:imports"),
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Compile / scalacOptions ++= (CrossVersion.partialVersion(scalaVersion.value) match {
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case Some((2, 13)) =>
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disciplineScalacOptions -- Set(
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"-Ywarn-inaccessible",
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"-Ywarn-infer-any",
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"-Ywarn-nullary-override",
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"-Ywarn-nullary-unit",
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"-Ypartial-unification",
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"-Yno-adapted-args")
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case Some((2, 12)) =>
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disciplineScalacOptions
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case _ =>
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Nil
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}).toSeq,
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Compile / scalacOptions --=
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(if (strictProjects.contains(name.value)) Seq.empty
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else undisciplineScalacOptions.toSeq),
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// Discipline is not needed for the docs compilation run (which uses
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// different compiler phases from the regular run), and in particular
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// '-Ywarn-unused:explicits' breaks 'sbt ++2.13.0-M5 akka-actor/doc'
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// https://github.com/akka/akka/issues/26119
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Compile / doc / scalacOptions --= disciplineScalacOptions.toSeq :+ "-Xfatal-warnings")
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val testUndicipline = Seq(
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"-Ywarn-dead-code", // ??? used in compile only specs
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"-Ywarn-value-discard" // Ignoring returned assertions
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)
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/**
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* Remain visibly filtered for future code quality work and removing.
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*/
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val undisciplineScalacOptions = Set("-Ywarn-value-discard", "-Ywarn-numeric-widen", "-Yno-adapted-args")
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/** These options are desired, but some are excluded for the time being*/
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val disciplineScalacOptions = Set(
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// start: must currently remove, version regardless
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"-Ywarn-value-discard",
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"-Ywarn-numeric-widen",
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"-Yno-adapted-args",
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// end
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"-deprecation",
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"-Xlint",
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"-Ywarn-dead-code",
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"-Ywarn-inaccessible",
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"-Ywarn-infer-any",
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"-Ywarn-nullary-override",
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"-Ywarn-nullary-unit",
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"-Ywarn-unused:_",
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"-Ypartial-unification",
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"-Ywarn-extra-implicit")
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}
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