build.sc

// imports
import mill._
import mill.scalalib._
import mill.scalalib.publish._
import mill.main.RunScript
import mill.eval.Evaluator
import mill.define.Command
import mill.resolve.SelectMode
import mill.resolve.Resolve
object Settings {
  val version = "0.11.3-M1"
  val pomOrg = "com.lihaoyi"
  val githubOrg = "com-lihaoyi"
  val githubRepo = "mill-moduledefs"
  val projectUrl = s"https://github.com/${githubOrg}/${githubRepo}"
}

object Deps {
  val scala2Versions = 0.to(15).map(v => "2.13." + v)
  val scala3Versions = Seq("3.5.0", "3.5.2")
  val scalaAllVersions = Map(scala2Versions.last -> scala2Versions, scala3Versions.last -> scala3Versions)
  def scalaCompiler(scalaVersion: String) =
    if (scalaVersion.startsWith("3.")) ivy"org.scala-lang::scala3-compiler:${scalaVersion}"
    else ivy"org.scala-lang:scala-compiler:${scalaVersion}"
  val sourcecode = ivy"com.lihaoyi::sourcecode:0.3.0"
}

trait ModuledefsBase extends ScalaModule with PublishModule {
  def publishVersion = Settings.version
  def pomSettings = PomSettings(
    description = artifactName(),
    organization = Settings.pomOrg,
    url = Settings.projectUrl,
    licenses = Seq(License.MIT),
    versionControl = VersionControl.github(Settings.githubOrg, Settings.githubRepo),
    developers = Seq(
      Developer("lihaoyi", "Li Haoyi", "https://github.com/lihaoyi"),
      Developer("lefou", "Tobias Roeser", "https://github.com/lefou")
    )
  )
  override def javacOptions = Seq("-source", "1.8", "-target", "1.8", "-encoding", "UTF-8")
  override def scalacOptions = T {
    super.scalacOptions() ++ (
      if (scalaVersion().startsWith("3.")) Seq("-Yexplicit-nulls", "-no-indent")
      else Seq.empty
    )
  }
}

object moduledefs extends Cross[ModuleDefsCross](Deps.scalaAllVersions.keys.toSeq)
trait ModuleDefsCross extends CrossScalaModule  with ModuledefsBase { outer =>
  override def artifactName = "mill-" + super.artifactName()
  override def ivyDeps = {
    val sv = crossScalaVersion
    Agg(Deps.sourcecode) ++
      (if (sv.startsWith("2.")) Agg(Deps.scalaCompiler(sv)) else Agg.empty)
  }

  object plugin extends Cross[PluginCross](Deps.scalaAllVersions(crossScalaVersion))
  trait PluginCross extends CrossScalaModule
      with ModuledefsBase {
    override def artifactName = "scalac-mill-moduledefs-plugin"
                                          // ^^ TODO: cant use `"scalac-mill-" + super.artifactName()` here
                                          //    because it includes the crossScalaVersion of `moduledefs`
                                          //    could be addressed with Cross2 from mill 0.11.x
    override def moduleDeps = Seq(moduledefs(outer.crossScalaVersion))
    override def crossFullScalaVersion = true
    override def ivyDeps = Agg(
      Deps.scalaCompiler(crossScalaVersion),
      Deps.sourcecode
    )

    override def resources = T.sources {
      super.resources() ++ scalaVersionDirectoryNames.map(dir =>
        PathRef(millSourcePath / s"resources-$dir")
      )
    }
  }
}

def publishToSonatype(
    sonatypeCreds: String,
    gpgArgs: String = PublishModule.defaultGpgArgs.mkString(","),
    dryRun: Boolean = false,
    artifactsFile: Option[String] = None
): Command[Unit] = {

  val pubTasks: Seq[String] = artifactsFile.map(f => os.Path(f, os.pwd)).filter(os.exists) match {
    case None => Seq("__.publishArtifacts")
    case Some(f) =>
      val tasks = os.read.lines(f)
        .map(_.trim())
        .filter(l => l.nonEmpty && !l.startsWith("#"))
      if (tasks.isEmpty) sys.error(s"No artifacts tasks selected. File ${f} cannot be empty.")
      tasks
  }

  val Right(tasks) = Resolve.Tasks.resolve(
    build,
    pubTasks,
    SelectMode.Separated
  )

  T.command {
    val pubArtifacts: Seq[(Seq[(os.Path, String)], Artifact)] = T.sequence(tasks)().map {
      case PublishModule.PublishData(a, s) => (s.map { case (p, f) => (p.path, f) }, a)
    }

    T.log.debug(s"Publishing artifacts: ${pubArtifacts.map(_._2).mkString("\n  ", "\n  ", "")}")

    if (dryRun) {
      T.log.info(
        s"Skipping publish for artifacts: ${pubArtifacts.map(_._2).mkString("\n  ", "\n  ", "")}"
      )
    } else {
      new SonatypePublisher(
        uri = "https://oss.sonatype.org/service/local",
        snapshotUri = "https://oss.sonatype.org/content/repositories/snapshots",
        sonatypeCreds,
        signed = true,
        gpgArgs.split(','),
        readTimeout = 6000000,
        connectTimeout = 600000,
        T.log,
        T.workspace,
        T.env,
        awaitTimeout = 600000,
        stagingRelease = true
      ).publishAll(
        release = true,
        pubArtifacts: _*
      )
    }
  }

}