build.sbt

import sbtcrossproject.{crossProject, CrossType}
import ScalaModulePlugin._

crossScalaVersions in ThisBuild := List("2.12.6", "2.11.12", "2.13.0-M3")

lazy val xml = crossProject(JSPlatform, JVMPlatform)
  .withoutSuffixFor(JVMPlatform)
  .crossType(CrossType.Full)
  .in(file("."))
  .settings(scalaModuleSettings)
  .jvmSettings(scalaModuleSettingsJVM)
  .settings(
    name    := "scala-xml",
    version := "1.1.1-SNAPSHOT",

    // Compiler team advised avoiding the -Xfuture option for releases.
    // The output with -Xfuture should be periodically checked, though.
    scalacOptions         ++= "-deprecation:false -feature -Xlint:-stars-align,-nullary-unit,_".split("\\s+").to[Seq],
    scalacOptions in Test  += "-Xxml:coalescing",

    mimaPreviousVersion := {
      if (System.getenv("SCALAJS_VERSION") == "1.0.0-M3") None // No such release yet
      else Some("1.1.0")
    },

    apiMappings ++= Map(
      scalaInstance.value.libraryJar
        -> url(s"http://www.scala-lang.org/api/${scalaVersion.value}/")
    ) ++ {
      // http://stackoverflow.com/questions/16934488
      Option(System.getProperty("sun.boot.class.path")).flatMap { classPath =>
        classPath.split(java.io.File.pathSeparator).filter(_.endsWith(java.io.File.separator + "rt.jar")).headOption
      }.map { jarPath =>
        Map(
          file(jarPath)
            -> url("http://docs.oracle.com/javase/8/docs/api")
        )
      } getOrElse {
        // If everything fails, jam in the Java 9 base module.
        Map(
          file("/modules/java.base")
            -> url("http://docs.oracle.com/javase/9/docs/api"),
          file("/modules/java.xml")
            -> url("http://docs.oracle.com/javase/9/docs/api")
        )
      }
    }
  )
  .jvmSettings(
    OsgiKeys.exportPackage := Seq(s"scala.xml.*;version=${version.value}"),

    libraryDependencies += "junit" % "junit" % "4.12" % "test",
    libraryDependencies += "com.novocode" % "junit-interface" % "0.11" % "test",
    libraryDependencies += "org.apache.commons" % "commons-lang3" % "3.5" % "test",
    libraryDependencies += ("org.scala-lang" % "scala-compiler" % scalaVersion.value % "test").exclude("org.scala-lang.modules", s"scala-xml_${scalaBinaryVersion.value}")
  )
  .jsSettings(
    // Scala.js cannot run forked tests
    fork in Test := false
  )
  .jsConfigure(_.enablePlugins(ScalaJSJUnitPlugin))

lazy val xmlJVM = xml.jvm
lazy val xmlJS = xml.js