package mill
package scalalib
import ammonite.ops._
import coursier.{Dependency, Repository}
import mill.define.Task
import mill.define.TaskModule
import mill.eval.{PathRef, Result}
import mill.modules.Jvm
import mill.modules.Jvm.{createAssembly, createJar, subprocess}
import Lib._
import mill.util.Loose.Agg
import mill.util.DummyInputStream
/**
* Core configuration required to compile a single Scala compilation target
*/
trait ScalaModule extends JavaModule { outer =>
trait Tests extends TestModule{
def scalaVersion = outer.scalaVersion()
override def repositories = outer.repositories
override def scalacPluginIvyDeps = outer.scalacPluginIvyDeps
override def scalacOptions = outer.scalacOptions
override def javacOptions = outer.javacOptions
override def scalaWorker = outer.scalaWorker
override def moduleDeps = Seq(outer)
}
def scalaVersion: T[String]
override def finalMainClassOpt: T[Either[String, String]] = T{
mainClass() match{
case Some(m) => Right(m)
case None =>
scalaWorker.worker().discoverMainClasses(compile())match {
case Seq() => Left("No main class specified or found")
case Seq(main) => Right(main)
case mains =>
Left(
s"Multiple main classes found (${mains.mkString(",")}) " +
"please explicitly specify which one to use by overriding mainClass"
)
}
}
}
def scalacPluginIvyDeps = T{ Agg.empty[Dep] }
def scalacOptions = T{ Seq.empty[String] }
override def repositories: Seq[Repository] = scalaWorker.repositories
private val Milestone213 = raw"""2.13.(\d+)-M(\d+)""".r
def scalaCompilerBridgeSources = T {
val (scalaVersion0, scalaBinaryVersion0) = scalaVersion() match {
case Milestone213(_, _) => ("2.13.0-M2", "2.13.0-M2")
case _ => (scalaVersion(), Lib.scalaBinaryVersion(scalaVersion()))
}
resolveDependencies(
repositories,
scalaVersion0,
Seq(ivy"org.scala-sbt::compiler-bridge:1.1.0"),
sources = true
).map(_.find(_.path.last == s"compiler-bridge_${scalaBinaryVersion0}-1.1.0-sources.jar").map(_.path).get)
}
def scalacPluginClasspath: T[Agg[PathRef]] = T {
resolveDeps(scalacPluginIvyDeps)()
}
def scalaLibraryIvyDeps = T{ scalaRuntimeIvyDeps(scalaVersion()) }
/**
* Classpath of the Scala Compiler & any compiler plugins
*/
def scalaCompilerClasspath: T[Agg[PathRef]] = T{
resolveDeps(
T.task{scalaCompilerIvyDeps(scalaVersion()) ++ scalaRuntimeIvyDeps(scalaVersion())}
)()
}
override def compileClasspath = T{
transitiveLocalClasspath() ++
resources() ++
unmanagedClasspath() ++
resolveDeps(T.task{compileIvyDeps() ++ scalaLibraryIvyDeps() ++ transitiveIvyDeps()})()
}
override def upstreamAssemblyClasspath = T{
transitiveLocalClasspath() ++
unmanagedClasspath() ++
resolveDeps(T.task{runIvyDeps() ++ scalaLibraryIvyDeps() ++ transitiveIvyDeps()})()
}
override def compile: T[CompilationResult] = T.persistent{
scalaWorker.worker().compileScala(
scalaVersion(),
allSourceFiles().map(_.path),
scalaCompilerBridgeSources(),
compileClasspath().map(_.path),
scalaCompilerClasspath().map(_.path),
scalacOptions(),
scalacPluginClasspath().map(_.path),
javacOptions(),
upstreamCompileOutput()
)
}
override def ivyDepsTree(inverse: Boolean = false) = T.command {
val (flattened, resolution) = Lib.resolveDependenciesMetadata(
repositories, scalaVersion(), ivyDeps(), platformSuffix(), Some(mapDependencies)
)
println(coursier.util.Print.dependencyTree(flattened, resolution,
printExclusions = false, reverse = inverse))
Result.Success()
}
override def docJar = T {
val outDir = T.ctx().dest
val javadocDir = outDir / 'javadoc
mkdir(javadocDir)
val files = for{
ref <- allSources()
if exists(ref.path)
p <- ls.rec(ref.path)
if p.isFile
} yield p.toNIO.toString
val options = Seq("-d", javadocDir.toNIO.toString, "-usejavacp")
if (files.nonEmpty) subprocess(
"scala.tools.nsc.ScalaDoc",
scalaCompilerClasspath().map(_.path) ++ compileClasspath().filter(_.path.ext != "pom").map(_.path),
mainArgs = (files ++ options).toSeq
)
createJar(Agg(javadocDir))(outDir)
}
def console() = T.command{
if (T.ctx().log.inStream == DummyInputStream){
Result.Failure("repl needs to be run with the -i/--interactive flag")
}else{
Jvm.interactiveSubprocess(
mainClass = "scala.tools.nsc.MainGenericRunner",
classPath = runClasspath().map(_.path) ++ scalaCompilerClasspath().map(_.path),
mainArgs = Seq("-usejavacp"),
workingDir = pwd
)
Result.Success()
}
}
override def resolveDeps(deps: Task[Agg[Dep]], sources: Boolean = false) = T.task{
resolveDependencies(
repositories,
scalaVersion(),
deps(),
platformSuffix(),
sources,
mapDependencies = Some(mapDependencies)
)
}
def ammoniteReplClasspath = T{
localClasspath() ++
transitiveLocalClasspath() ++
unmanagedClasspath() ++
resolveDeps(T.task{
runIvyDeps() ++ scalaLibraryIvyDeps() ++ transitiveIvyDeps() ++
Agg(ivy"com.lihaoyi:::ammonite:1.1.0-12-f07633d")
})()
}
def repl() = T.command{
if (T.ctx().log.inStream == DummyInputStream){
Result.Failure("repl needs to be run with the -i/--interactive flag")
}else{
Jvm.interactiveSubprocess(
mainClass = "ammonite.Main",
classPath = ammoniteReplClasspath().map(_.path),
mainArgs = Nil,
workingDir = pwd
)
Result.Success()
}
}
// publish artifact with name "mill_2.12.4" instead of "mill_2.12"
def crossFullScalaVersion: T[Boolean] = false
def artifactScalaVersion: T[String] = T {
if (crossFullScalaVersion()) scalaVersion()
else Lib.scalaBinaryVersion(scalaVersion())
}
override def artifactSuffix: T[String] = T { s"_${artifactScalaVersion()}" }
}
object TestModule{
def handleResults(doneMsg: String, results: Seq[TestRunner.Result]) = {
val badTests = results.filter(x => Set("Error", "Failure").contains(x.status))
if (badTests.isEmpty) Result.Success((doneMsg, results))
else {
val suffix = if (badTests.length == 1) "" else " and " + (badTests.length-1) + " more"
Result.Failure(
badTests.head.fullyQualifiedName + " " + badTests.head.selector + suffix,
Some((doneMsg, results))
)
}
}
}
trait TestModule extends ScalaModule with TaskModule {
override def defaultCommandName() = "test"
def testFrameworks: T[Seq[String]]
def forkWorkingDir = ammonite.ops.pwd
def test(args: String*) = T.command{
val outputPath = T.ctx().dest/"out.json"
Jvm.subprocess(
mainClass = "mill.scalaworker.ScalaWorker",
classPath = scalaWorker.classpath(),
jvmArgs = forkArgs(),
envArgs = forkEnv(),
mainArgs =
Seq(testFrameworks().length.toString) ++
testFrameworks() ++
Seq(runClasspath().length.toString) ++
runClasspath().map(_.path.toString) ++
Seq(args.length.toString) ++
args ++
Seq(outputPath.toString, T.ctx().log.colored.toString, compile().classes.path.toString, T.ctx().home.toString),
workingDir = forkWorkingDir
)
val jsonOutput = ujson.read(outputPath.toIO)
val (doneMsg, results) = upickle.default.readJs[(String, Seq[TestRunner.Result])](jsonOutput)
TestModule.handleResults(doneMsg, results)
}
def testLocal(args: String*) = T.command{
val outputPath = T.ctx().dest/"out.json"
scalaWorker.worker().runTests(
TestRunner.frameworks(testFrameworks()),
runClasspath().map(_.path),
Agg(compile().classes.path),
args
)
val jsonOutput = ujson.read(outputPath.toIO)
val (doneMsg, results) = upickle.default.readJs[(String, Seq[TestRunner.Result])](jsonOutput)
TestModule.handleResults(doneMsg, results)
}
}