build.mill

package build
// imports
import com.github.lolgab.mill.mima.Mima
import coursier.maven.MavenRepository
import de.tobiasroeser.mill.vcs.version.VcsVersion
import com.goyeau.mill.scalafix.ScalafixModule
import mill._
import mill.define.NamedTask
import mill.main.Tasks
import mill.scalalib._
import mill.scalalib.api.ZincWorkerUtil
import mill.scalalib.publish._
import mill.resolve.SelectMode
import mill.T
import mill.define.Cross

// plugins and dependencies
import $meta._

import $packages._

object Settings {
  val pomOrg = "com.lihaoyi"
  val githubOrg = "com-lihaoyi"
  val githubRepo = "mill"
  val projectUrl = s"https://github.com/${githubOrg}/${githubRepo}"
  val changelogUrl = s"${projectUrl}#changelog"
  val newIssueUrl = s"${projectUrl}/issues/new/choose"
  val docUrl = "https://mill-build.org"
  // the exact branches containing a doc root
  val docBranches = Seq()
  // the exact tags containing a doc root. Publish docs for
  // the last point version in each minor release series
  val legacyDocTags: Seq[String] = Seq(
    "0.9.12",
    "0.10.15"
  )
  val docTags: Seq[String] = Seq(
    "0.11.13",
    "0.12.8"
  )
  val mimaBaseVersions: Seq[String] =
    0.to(13).map("0.11." + _) ++
      0.to(8).map("0.12." + _)

  val graalvmJvmId = "graalvm-community:23.0.1"
}

object Deps {

  // The Scala version to use
  // When updating, run "Publish Bridges" Github Actions for the new version
  // and then add to it `bridgeScalaVersions`
  val scalaVersion = "3.6.2"
  val scala2Version = "2.13.15"
  // The Scala 2.12.x version to use for some workers
  val workerScalaVersion212 = "2.12.20"

  val testScala213Version = "2.13.15"
  // Scala Native 4.2 will not get releases for new Scala version
  val testScala213VersionForScalaNative42 = "2.13.8"
  val testScala212Version = "2.12.6"
  val testScala32Version = "3.2.0"
  val testScala33Version = "3.3.1"

  object Scalajs_1 {
    val scalaJsVersion = "1.18.1"
    val scalajsEnvJsdomNodejs =
      ivy"org.scala-js::scalajs-env-jsdom-nodejs:1.1.0".withDottyCompat(scalaVersion)
    val scalajsEnvExoegoJsdomNodejs =
      ivy"net.exoego::scalajs-env-jsdom-nodejs:2.1.0".withDottyCompat(scalaVersion)
    val scalajsEnvNodejs = ivy"org.scala-js::scalajs-env-nodejs:1.4.0".withDottyCompat(scalaVersion)
    val scalajsEnvPhantomjs =
      ivy"org.scala-js::scalajs-env-phantomjs:1.0.0".withDottyCompat(scalaVersion)
    val scalajsEnvSelenium =
      ivy"org.scala-js::scalajs-env-selenium:1.1.1".withDottyCompat(scalaVersion)
    val scalajsSbtTestAdapter =
      ivy"org.scala-js::scalajs-sbt-test-adapter:${scalaJsVersion}".withDottyCompat(scalaVersion)
    val scalajsLinker =
      ivy"org.scala-js::scalajs-linker:${scalaJsVersion}".withDottyCompat(scalaVersion)
    val scalajsImportMap =
      ivy"com.armanbilge::scalajs-importmap:0.1.1".withDottyCompat(scalaVersion)
  }

  object Scalanative_0_5 {
    val scalanativeVersion = "0.5.6"
    val scalanativeTools = ivy"org.scala-native::tools:${scalanativeVersion}"
    val scalanativeUtil = ivy"org.scala-native::util:${scalanativeVersion}"
    val scalanativeNir = ivy"org.scala-native::nir:${scalanativeVersion}"
    val scalanativeTestRunner = ivy"org.scala-native::test-runner:${scalanativeVersion}"
  }

  trait Play {
    def playVersion: String
    def playBinVersion: String = playVersion.split("[.]").take(2).mkString(".")
    def routesCompiler = playBinVersion match {
      case "2.6" | "2.7" | "2.8" => ivy"com.typesafe.play::routes-compiler::$playVersion"
      case "2.9" => ivy"com.typesafe.play::play-routes-compiler::$playVersion"
      case _ => ivy"org.playframework::play-routes-compiler::$playVersion"
    }
    def scalaVersion: String = Deps.scalaVersion
  }
  object Play_2_6 extends Play {
    def playVersion = "2.6.25"
    override def scalaVersion: String = Deps.workerScalaVersion212
  }
  object Play_2_7 extends Play {
    val playVersion = "2.7.9"
    override def scalaVersion: String = Deps.scala2Version
  }
  object Play_2_8 extends Play {
    val playVersion = "2.8.22"
    override def scalaVersion: String = Deps.scala2Version
  }
  object Play_2_9 extends Play {
    val playVersion = "2.9.6"
  }
  object Play_3_0 extends Play {
    val playVersion = "3.0.6"
  }
  val play =
    Seq(Play_3_0, Play_2_9, Play_2_8, Play_2_7, Play_2_6).map(p => (p.playBinVersion, p)).toMap

  val acyclic = ivy"com.lihaoyi:::acyclic:0.3.15"
  val ammoniteVersion = "3.0.1"
  val asmTree = ivy"org.ow2.asm:asm-tree:9.7.1"
  val bloopConfig = ivy"ch.epfl.scala::bloop-config:1.5.5".withDottyCompat(scalaVersion)

  val coursierVersion = "2.1.24"
  val coursier = ivy"io.get-coursier::coursier:$coursierVersion".withDottyCompat(scalaVersion)
  val coursierInterface = ivy"io.get-coursier:interface:1.0.27"
  val coursierJvm =
    ivy"io.get-coursier::coursier-jvm:$coursierVersion".withDottyCompat(scalaVersion)

  val cask = ivy"com.lihaoyi::cask:0.9.4"
  val castor = ivy"com.lihaoyi::castor:0.3.0"
  val fastparse = ivy"com.lihaoyi::fastparse:3.1.1"
  val flywayCore = ivy"org.flywaydb:flyway-core:8.5.13"
  val graphvizJava = Seq(
    ivy"guru.nidi:graphviz-java-min-deps:0.18.1",
    ivy"org.webjars.npm:viz.js-graphviz-java:2.1.3",
    ivy"org.apache.xmlgraphics:batik-rasterizer:1.18"
  )

  val jgraphtCore = ivy"org.jgrapht:jgrapht-core:1.4.0" // 1.5.0+ dont support JDK8
  val javet = Seq(
    ivy"com.caoccao.javet:javet:4.0.0",
    ivy"com.caoccao.javet:javet-linux-arm64:4.0.0",
    ivy"com.caoccao.javet:javet-macos:4.0.0"
  )

  val jline = ivy"org.jline:jline:3.28.0"
  val jnaVersion = "5.16.0"

  val jna = ivy"net.java.dev.jna:jna:${jnaVersion}"
  val jnaPlatform = ivy"net.java.dev.jna:jna-platform:${jnaVersion}"

  val junitInterface = ivy"com.github.sbt:junit-interface:0.13.3"
  val commonsIo = ivy"commons-io:commons-io:2.18.0"
  val log4j2Core = ivy"org.apache.logging.log4j:log4j-core:2.24.3"
  val osLib = ivy"com.lihaoyi::os-lib:0.11.5-M1"
  val pprint = ivy"com.lihaoyi::pprint:0.9.0"
  val mainargs = ivy"com.lihaoyi::mainargs:0.7.6"
  val millModuledefsVersion = "0.11.3-M4"
  val millModuledefsString = s"com.lihaoyi::mill-moduledefs:${millModuledefsVersion}"
  val millModuledefs = ivy"${millModuledefsString}"
  val millModuledefsPlugin =
    ivy"com.lihaoyi:::scalac-mill-moduledefs-plugin:${millModuledefsVersion}"
  // can't use newer versions, as these need higher Java versions
  val testng = ivy"org.testng:testng:7.5.1"
  val sbtTestInterface = ivy"org.scala-sbt:test-interface:1.0"
  def scalaCompiler(scalaVersion: String) = {
    if (ZincWorkerUtil.isScala3(scalaVersion)) ivy"org.scala-lang:scala3-compiler_3:${scalaVersion}"
    else ivy"org.scala-lang:scala-compiler:${scalaVersion}"
  }
  val scalafmtDynamic = ivy"org.scalameta::scalafmt-dynamic:3.8.5".withDottyCompat(scalaVersion)
  def scalap(scalaVersion: String) = ivy"org.scala-lang:scalap:${scalaVersion}"
  def scalaReflect(scalaVersion: String) =
    if (ZincWorkerUtil.isScala3(scalaVersion))
      ivy"org.scala-lang:scala-reflect:${Deps.scala2Version}"
    else ivy"org.scala-lang:scala-reflect:${scalaVersion}"
  val scoverage2Version = "2.2.1"
  val scalacScoverage2Plugin = ivy"org.scoverage:::scalac-scoverage-plugin:${scoverage2Version}"
  val scalacScoverage2Reporter = ivy"org.scoverage::scalac-scoverage-reporter:${scoverage2Version}"
  val scalacScoverage2Domain = ivy"org.scoverage::scalac-scoverage-domain:${scoverage2Version}"
  val scalacScoverage2Serializer =
    ivy"org.scoverage::scalac-scoverage-serializer:${scoverage2Version}"
  val scalaparse = ivy"com.lihaoyi::scalaparse:${fastparse.version}"
  val scalatags = ivy"com.lihaoyi::scalatags:0.13.1".withDottyCompat(scalaVersion)
  def scalaXml = ivy"org.scala-lang.modules::scala-xml:2.3.0"
  // keep in sync with doc/antora/antory.yml
  val semanticDBscala = ivy"org.scalameta:::semanticdb-scalac:4.12.4"
  val semanticDbJava = ivy"com.sourcegraph:semanticdb-java:0.10.3"
  val sourcecode = ivy"com.lihaoyi::sourcecode:0.4.3-M5"
  val upickle = ivy"com.lihaoyi::upickle:4.1.0"
  val windowsAnsi = ivy"io.github.alexarchambault.windows-ansi:windows-ansi:0.0.6"
  val zinc = ivy"org.scala-sbt::zinc:1.10.7".withDottyCompat(scalaVersion)
  // keep in sync with doc/antora/antory.yml
  val bsp4j = ivy"ch.epfl.scala:bsp4j:2.2.0-M2"
  val fansi = ivy"com.lihaoyi::fansi:0.5.0"
  val jarjarabrams =
    ivy"com.eed3si9n.jarjarabrams::jarjar-abrams-core:1.14.0".withDottyCompat(scalaVersion)
  val requests = ivy"com.lihaoyi::requests:0.9.0"
  val logback = ivy"ch.qos.logback:logback-classic:1.5.16"
  val sonatypeCentralClient = ivy"com.lumidion::sonatype-central-client-requests:0.3.0"
  val kotlinVersion = "2.0.21"
  val kotlinCompiler = ivy"org.jetbrains.kotlin:kotlin-compiler:$kotlinVersion"
  val mavenVersion = "3.9.9"
  val mavenEmbedder = ivy"org.apache.maven:maven-embedder:$mavenVersion"
  val mavenResolverVersion = "1.9.22"
  val mavenResolverConnectorBasic =
    ivy"org.apache.maven.resolver:maven-resolver-connector-basic:$mavenResolverVersion"
  val mavenResolverSupplier =
    ivy"org.apache.maven.resolver:maven-resolver-supplier:$mavenResolverVersion"
  val mavenResolverTransportFile =
    ivy"org.apache.maven.resolver:maven-resolver-transport-file:$mavenResolverVersion"
  val mavenResolverTransportHttp =
    ivy"org.apache.maven.resolver:maven-resolver-transport-http:$mavenResolverVersion"
  val mavenResolverTransportWagon =
    ivy"org.apache.maven.resolver:maven-resolver-transport-wagon:$mavenResolverVersion"
  val coursierJvmIndexVersion = "0.0.4-84-f852c6"
  val gradleApi = ivy"dev.gradleplugins:gradle-api:8.11.1"

  object RuntimeDeps {
    val dokkaVersion = "2.0.0"
    val koverVersion = "0.8.3"

    val detektCli = ivy"io.gitlab.arturbosch.detekt:detekt-cli:1.23.7"
    val dokkaAnalysisDescriptors =
      ivy"org.jetbrains.dokka:analysis-kotlin-descriptors:$dokkaVersion"
    val dokkaBase = ivy"org.jetbrains.dokka:dokka-base:$dokkaVersion"
    val dokkaCli = ivy"org.jetbrains.dokka:dokka-cli:$dokkaVersion"
    val errorProneCore = ivy"com.google.errorprone:error_prone_core:2.31.0"
    val freemarker = ivy"org.freemarker:freemarker:2.3.34"
    val jupiterInterface = ivy"com.github.sbt.junit:jupiter-interface:0.13.3"
    val kotlinxHtmlJvm = ivy"org.jetbrains.kotlinx:kotlinx-html-jvm:0.11.0"
    val koverCli = ivy"org.jetbrains.kotlinx:kover-cli:$koverVersion"
    val koverJvmAgent = ivy"org.jetbrains.kotlinx:kover-jvm-agent:$koverVersion"
    val ktfmt = ivy"com.facebook:ktfmt:0.53"
    val ktlint = ivy"com.pinterest.ktlint:ktlint-core:0.49.1"
    val palantirFormat = ivy"com.palantir.javaformat:palantir-java-format:2.51.0"
    val revApi = ivy"org.revapi:revapi-standalone:0.12.0"
    val sbtTestInterface = ivy"com.github.sbt:junit-interface:0.13.2"

    def all = Seq(
      detektCli,
      dokkaAnalysisDescriptors,
      dokkaBase,
      dokkaCli,
      errorProneCore,
      freemarker,
      jupiterInterface,
      kotlinxHtmlJvm,
      koverCli,
      koverJvmAgent,
      ktfmt,
      ktlint,
      palantirFormat,
      revApi,
      sbtTestInterface
    )
  }

  /** Used to manage transitive versions. */
  lazy val transitiveDeps = Seq(
    ivy"org.apache.ant:ant:1.10.15",
    Deps.commonsIo,
    ivy"com.google.code.gson:gson:2.11.0",
    ivy"com.google.protobuf:protobuf-java:4.29.3",
    ivy"com.google.guava:guava:33.4.0-jre",
    ivy"org.yaml:snakeyaml:2.3",
    ivy"org.apache.commons:commons-compress:1.27.1"
  )

  /** Used in tests. */
  object TestDeps {
    // tests framework (test)
    val scalaCheck = ivy"org.scalacheck::scalacheck:1.18.1"
    val scalaTest = ivy"org.scalatest::scalatest:3.2.19"
    val utest = ivy"com.lihaoyi::utest:0.8.5"
    val zioTest = ivy"dev.zio::zio-test:2.1.14"
  }

  /** Used in documentation. */
  object DocDeps {
    val millScip = ivy"io.chris-kipp::mill-scip_mill0.11:0.3.7"
  }
}

def millVersion: T[String] = Task.Input {
  if (Task.env.contains("MILL_STABLE_VERSION")) {
    // Ignore local changes when computing the VCS version string,
    // since we make those in CI and can promise they are safe
    VcsVersion.calcVcsState(Task.log).copy(dirtyHash = None).format()
  } else "SNAPSHOT"
}

def millLastTag: T[String] = Task.Input {
  if (Task.env.contains("MILL_STABLE_VERSION")) {
    VcsVersion.calcVcsState(Task.log).lastTag.getOrElse(
      sys.error("No (last) git tag found. Your git history seems incomplete!")
    )
  } else "SNAPSHOT"
}

def millDownloadPrefix = Task {
  s"https://repo1.maven.org/maven2/com/lihaoyi/mill-dist/"
}
def millDownloadUrl = Task {
  s"https://repo1.maven.org/maven2/com/lihaoyi/mill-dist/${millLastTag()}"
}

def millBinPlatform: T[String] = Task {
  val tag = millLastTag()
  if (tag.contains("-M")) tag
  else {
    val pos = if (tag.startsWith("0.")) 2 else 1
    tag.split("[.]", pos + 1).take(pos).mkString(".")
  }
}

def baseDir = build.millSourcePath

def millJvmVersion = Task.Source(Task.workspace / ".mill-jvm-version")

val essentialBridgeScalaVersions =
  Seq(Deps.scalaVersion, Deps.scala2Version, Deps.workerScalaVersion212)
// published compiler bridges
val bridgeScalaVersions = Seq(
  // Our version of Zinc doesn't work with Scala 2.12.0 and 2.12.4 compiler
  // bridges. We skip 2.12.1 because it's so old not to matter, and we need a
  // non-supported scala version for testing purposes. We skip 2.13.0-2 because
  // scaladoc fails on windows
  /*"2.12.0",*/ /*2.12.1",*/ "2.12.2",
  "2.12.3", /*"2.12.4",*/ "2.12.5",
  "2.12.6",
  "2.12.7",
  "2.12.8",
  "2.12.9",
  "2.12.10",
  "2.12.11",
  "2.12.12",
  "2.12.13",
  "2.12.14",
  "2.12.15",
  "2.12.16",
  "2.12.17",
  "2.12.18",
  "2.12.19",
  /*"2.13.0", "2.13.1", "2.13.2",*/
  "2.13.3",
  "2.13.4",
  "2.13.5",
  "2.13.6",
  "2.13.7",
  "2.13.8",
  "2.13.9",
  "2.13.10",
  "2.13.11",
  "2.13.12",
  "2.13.13",
  "2.13.14",
  "2.13.15"
)

// We limit the number of compiler bridges to compile and publish for local
// development and testing, because otherwise it takes forever to compile all
// of them. Compiler bridges not in this set will get downloaded and compiled
// on the fly anyway. For publishing, we publish everything or a specific version
// if given.
val compilerBridgeScalaVersions =
  interp.watchValue(sys.env.get("MILL_COMPILER_BRIDGE_VERSIONS")) match {
    case None | Some("") | Some("none") => Seq.empty[String]
    case Some("all") => (essentialBridgeScalaVersions ++ bridgeScalaVersions).distinct
    case Some("essential") => essentialBridgeScalaVersions
    case Some(versions) => versions.split(',').map(_.trim()).filterNot(_.isEmpty).toSeq
  }
val bridgeVersion = "0.0.1"

trait MillJavaModule extends JavaModule {

  // Test setup
  def testDep = Task { (s"com.lihaoyi-${artifactId()}", testDepPaths().map(_.path).mkString("\n")) }

  // Workaround for Zinc/JNA bug
  // https://github.com/sbt/sbt/blame/6718803ee6023ab041b045a6988fafcfae9d15b5/main/src/main/scala/sbt/Main.scala#L130
  def testArgs: T[Seq[String]] = Task { Seq("-Djna.nosys=true") }
  def testDepPaths = Task { upstreamAssemblyClasspath() ++ Seq(compile().classes) ++ resources() }

  def testTransitiveDeps: T[Map[String, String]] = Task {
    val upstream = Task.traverse(moduleDeps ++ compileModuleDeps) {
      case m: MillJavaModule => m.testTransitiveDeps.map(Some(_))
      case _ => Task.Anon(None)
    }().flatten.flatten
    val current = Seq(testDep())
    upstream.toMap ++ current
  }

  def testIvyDeps: T[Agg[Dep]] = Agg(Deps.TestDeps.utest)
  def testForkEnv: T[Map[String, String]] = forkEnv()
  def testModuleDeps: Seq[JavaModule] =
    if (this == build.main) Seq(build.main)
    else Seq(this, build.main.test)

  def writeLocalTestOverrides = Task.Anon {
    for ((k, v) <- testTransitiveDeps()) {
      os.write(Task.dest / "mill/local-test-overrides" / k, v, createFolders = true)
    }
    Seq(PathRef(Task.dest))
  }

  def runClasspath = super.runClasspath() ++ writeLocalTestOverrides()

  def repositoriesTask = Task.Anon {
    super.repositoriesTask() ++
      Seq(MavenRepository("https://oss.sonatype.org/content/repositories/releases"))
  }

  def mapDependencies: Task[coursier.Dependency => coursier.Dependency] = Task.Anon {
    super.mapDependencies().andThen { dep =>
      forcedVersions.find(f =>
        f.dep.module.organization.value == dep.module.organization.value &&
          f.dep.module.name.value == dep.module.name.value
      ).map { forced =>
        val newDep = dep.withVersion(forced.dep.version)
        Task.log.debug(s"Forcing version of ${dep.module} from ${dep.version} to ${newDep.version}")
        newDep
      }.getOrElse(dep)
    }
  }
  val forcedVersions: Seq[Dep] = Deps.transitiveDeps ++ Seq(
    Deps.jline,
    Deps.jna
  )

  def javadocOptions = super.javadocOptions() ++ Seq(
    // Disable warnings for missing documentation comments or tags (for example,
    // a missing comment or class, or a missing @return tag or similar tag on a method).
    // We have many methods without JavaDoc comments, so those warnings are useless
    // and significantly clutter the output.
    "-Xdoclint:all,-missing"
  )
}

trait MillPublishJavaModule extends MillJavaModule with PublishModule {
  def commonPomSettings(artifactName: String) = {
    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")
      )
    )
  }

  def artifactName = "mill-" + super.artifactName()
  def publishVersion = millVersion()
  def publishProperties = super.publishProperties() ++ Map(
    "info.releaseNotesURL" -> Settings.changelogUrl
  )
  def pomSettings = commonPomSettings(artifactName())
  def javacOptions = Seq("-source", "1.8", "-target", "1.8", "-encoding", "UTF-8")
}

/**
 * Some custom scala settings and test convenience
 */
trait MillScalaModule extends ScalaModule with MillJavaModule with ScalafixModule { outer =>
  def scalaVersion = Deps.scalaVersion
  def scalapVersion: T[String] = Deps.scala2Version
  def scalafixScalaBinaryVersion = T {
    def sv = scalaVersion()
    if (ZincWorkerUtil.isScala3(sv)) "2.13"
    else ZincWorkerUtil.scalaBinaryVersion(sv)
  }

  def scalafixConfig = T { Some(T.workspace / ".scalafix.conf") }

  def semanticDbVersion = Deps.semanticDBscala.version

  def scaladocOptions = Seq("-Xsource:3")

  def scalacOptions =
    super.scalacOptions() ++ Seq(
      "-deprecation",
      "-feature"
    ) ++ (
      if (ZincWorkerUtil.isScala3(scalaVersion())) Seq(
        // "-Werror",
        "-Wunused:all",
        // "-Xfatal-warnings",
        "-Wconf:msg=An existential type that came from a Scala-2 classfile:silent",
        "-Wconf:msg=import scala.language.implicitConversions:silent",
        "-Wconf:msg=IterableOnceExtensionMethods:silent",
        "-Wconf:msg=is deprecated:silent",
        "-Wconf:msg=cannot be checked at runtime:silent"
        // "-Wconf:msg=unused:silent"
        // "-no-indent",
        // "-Wvalue-discard",
        // "-Wshadow:all",
        // "-Wsafe-init",
        // "-Wnonunit-statement",
        // "-Wimplausible-patterns",
        // "-rewrite", "-source", "3.6-migration"
      )
      else Seq(
        "-P:acyclic:force",
        // "-Xfatal-warnings",
        "-Xlint:unused",
        "-Xlint:adapted-args",
        "-Xsource:3",
        "-Wconf:msg=inferred type changes:silent",
        "-Wconf:msg=case companions no longer extend FunctionN:silent",
        "-Wconf:msg=access modifiers for:silent",
        "-Wconf:msg=is deprecated:silent",
        "-Wconf:msg=found in a package prefix of the required type:silent"
      )
    )

  def scalacPluginIvyDeps = T {
    val sv = scalaVersion()
    val binaryVersion = ZincWorkerUtil.scalaBinaryVersion(sv)
    val hasModuleDefs = binaryVersion == "2.13" || binaryVersion == "3"
    super.scalacPluginIvyDeps() ++
      Agg.when(binaryVersion != "3")(Deps.acyclic) ++
      Agg.when(hasModuleDefs)(Deps.millModuledefsPlugin)
  }

  def mandatoryIvyDeps = T {
    val sv = scalaVersion()
    val binaryVersion = ZincWorkerUtil.scalaBinaryVersion(sv)
    val hasModuleDefs = binaryVersion == "2.13" || binaryVersion == "3"
    super.mandatoryIvyDeps() ++
      Agg.when(hasModuleDefs)(Deps.millModuledefs)
  }

  /** Default tests module. */
  lazy val test: MillScalaTests = new MillScalaTests {}
  trait MillScalaTests extends ScalaTests with MillJavaModule with MillBaseTestsModule
      with ScalafixModule {
    def scalafixConfig = T { Some(T.workspace / ".scalafix.conf") }
    def forkArgs = super.forkArgs() ++ outer.testArgs()
    def moduleDeps = outer.testModuleDeps
    def ivyDeps = super.ivyDeps() ++ outer.testIvyDeps()
    def forkEnv = super.forkEnv() ++ outer.testForkEnv()
    override def testForkGrouping = discoveredTestClasses().grouped(1).toSeq
  }
}

trait MillBaseTestsModule extends TestModule {
  def forkArgs = Task {
    Seq(
      s"-DMILL_SCALA_3_NEXT_VERSION=${Deps.scalaVersion}",
      s"-DMILL_SCALA_2_13_VERSION=${Deps.scala2Version}",
      s"-DMILL_SCALA_2_12_VERSION=${Deps.workerScalaVersion212}",
      s"-DTEST_SCALA_2_13_VERSION=${Deps.testScala213Version}",
      s"-DTEST_SCALA_2_13_VERSION_FOR_SCALANATIVE_4_2=${Deps.testScala213VersionForScalaNative42}",
      s"-DTEST_SCALA_2_12_VERSION=${Deps.testScala212Version}",
      s"-DTEST_SCALA_3_2_VERSION=${Deps.testScala32Version}",
      s"-DTEST_SCALA_3_3_VERSION=${Deps.testScala33Version}",
      s"-DTEST_SCALAJS_VERSION=${Deps.Scalajs_1.scalaJsVersion}",
      s"-DTEST_SCALANATIVE_0_5_VERSION=${Deps.Scalanative_0_5.scalanativeVersion}",
      s"-DTEST_UTEST_VERSION=${Deps.TestDeps.utest.dep.version}",
      s"-DTEST_SCALATEST_VERSION=${Deps.TestDeps.scalaTest.dep.version}",
      s"-DTEST_TEST_INTERFACE_VERSION=${Deps.sbtTestInterface.dep.version}",
      s"-DTEST_ZIOTEST_VERSION=${Deps.TestDeps.zioTest.dep.version}",
      s"-DTEST_ZINC_VERSION=${Deps.zinc.dep.version}",
      s"-DTEST_KOTLIN_VERSION=${Deps.kotlinCompiler.dep.version}"
    )
  }

  def testFramework = "mill.UTestFramework"
  def testForkGrouping = discoveredTestClasses().grouped(1).toSeq
}

/** Published module which does not contain strictly handled API. */
trait MillPublishScalaModule extends MillScalaModule with MillPublishJavaModule

/** Publishable module which contains strictly handled API. */
trait MillStableScalaModule extends MillPublishScalaModule with Mima {
  import com.github.lolgab.mill.mima._
  override def mimaBinaryIssueFilters: T[Seq[ProblemFilter]] = Seq(
    // (5x) MIMA doesn't properly ignore things which are nested inside other private things
    // so we have to put explicit ignores here (https://github.com/lightbend/mima/issues/771)
    ProblemFilter.exclude[Problem]("mill.eval.ProfileLogger*"),
    ProblemFilter.exclude[Problem]("mill.eval.ChromeProfileLogger*"),
    ProblemFilter.exclude[Problem]("mill.eval.GroupEvaluator*"),
    ProblemFilter.exclude[Problem]("mill.eval.EvaluatorCore*"),
    ProblemFilter.exclude[Problem]("mill.eval.Tarjans*"),
    ProblemFilter.exclude[Problem]("mill.define.Ctx#Impl*"),
    ProblemFilter.exclude[Problem]("mill.resolve.ResolveNotFoundHandler*"),
    // (4x) See https://github.com/com-lihaoyi/mill/pull/2739
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalajslib.ScalaJSModule.mill$scalajslib$ScalaJSModule$$super$scalaLibraryIvyDeps"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.ScalaModule.mill$scalalib$ScalaModule$$super$zincAuxiliaryClassFileExtensions"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalajslib.ScalaJSModule.mill$scalajslib$ScalaJSModule$$super$zincAuxiliaryClassFileExtensions"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalanativelib.ScalaNativeModule.mill$scalanativelib$ScalaNativeModule$$super$zincAuxiliaryClassFileExtensions"
    ),
    // (6x) See https://github.com/com-lihaoyi/mill/pull/3064
    // Moved targets up in trait hierarchy, but also call them via super, which I think is safe
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$zincWorker"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$runClasspath"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$runUseArgsFile"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$forkArgs"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$forkEnv"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$forkWorkingDir"
    ),
    // (8x)
    // Moved targets up in trait hierarchy, but also call them via super, which I think is safe
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$localRunClasspath"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$runLocal"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$run"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$doRunBackground"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$runBackgroundLogToConsole"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$runMainBackground"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$runMainLocal"
    ),
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$runMain"
    ),
    // Terminal is sealed, not sure why MIMA still complains
    ProblemFilter.exclude[ReversedMissingMethodProblem]("mill.eval.Terminal.task"),

    // Not sure why mima is picking up this stuff which is private[mill]
    ProblemFilter.exclude[Problem]("mill.resolve.*.resolve0"),
    ProblemFilter.exclude[Problem]("mill.resolve.*.resolveRootModule"),

    // These methods are private so it doesn't matter
    ProblemFilter.exclude[ReversedMissingMethodProblem]("mill.resolve.Resolve.handleResolved"),
    ProblemFilter.exclude[Problem]("mill.resolve.*.resolveNonEmptyAndHandle*"),
    ProblemFilter.exclude[Problem]("mill.resolve.ResolveCore*"),
    ProblemFilter.exclude[InheritedNewAbstractMethodProblem](
      "mill.main.MainModule.mill$define$BaseModule0$_setter_$watchedValues_="
    ),
    ProblemFilter.exclude[InheritedNewAbstractMethodProblem](
      "mill.main.MainModule.mill$define$BaseModule0$_setter_$evalWatchedValues_="
    ),

    // https://github.com/com-lihaoyi/mill/pull/3503
    ProblemFilter.exclude[ReversedMissingMethodProblem](
      "mill.scalalib.ScalaModule#ScalaTests.mill$scalalib$ScalaModule$ScalaTests$$super$mandatoryScalacOptions"
    ),
    // Not sure why Mima is complaining when these are internal and private
    ProblemFilter.exclude[Problem]("*.bspJvmBuildTarget"),
    ProblemFilter.exclude[Problem]("mill.scalalib.RunModule#RunnerImpl.*"),
    ProblemFilter.exclude[Problem]("mill.util.PromptLogger#*"),
    ProblemFilter.exclude[Problem]("mill.util.PromptLoggerUtil.*"),
    ProblemFilter.exclude[Problem]("mill.main.SelectiveExecution*")
  )
  def mimaPreviousVersions: T[Seq[String]] = Settings.mimaBaseVersions

  def mimaPreviousArtifacts: T[Agg[Dep]] = Task {
    Agg.from(
      Settings.mimaBaseVersions
        .filter(v => !skipPreviousVersions().contains(v))
        .map({ version =>
          val patchedSuffix = {
            val base = artifactSuffix()
            version match {
              case s"0.$minor.$_" if minor.toIntOption.exists(_ < 12) =>
                base match {
                  case "_3" => "_2.13"
                  case s"_3_$suffix" => s"_2.13_$suffix"
                  case _ => base
                }
              case _ => base
            }
          }
          val patchedId = artifactName() + patchedSuffix
          ivy"${pomSettings().organization}:${patchedId}:${version}"
        })
    )
  }

  def mimaExcludeAnnotations = Seq("mill.api.internal", "mill.api.experimental")
//  def mimaCheckDirection = CheckDirection.Backward
  def skipPreviousVersions: T[Seq[String]] = T {
    T.log.info("Skipping mima for previous versions (!!1000s of errors due to Scala 3)")
    mimaPreviousVersions() // T(Seq.empty[String])
  }
}

object bridge extends Cross[BridgeModule](compilerBridgeScalaVersions)
trait BridgeModule extends MillPublishJavaModule with CrossScalaModule {
  def scalaVersion = crossScalaVersion
  def publishVersion = bridgeVersion
  def artifactName = "mill-scala-compiler-bridge"
  def pomSettings = commonPomSettings(artifactName())
  def crossFullScalaVersion = true
  def ivyDeps = Agg(
    ivy"org.scala-sbt:compiler-interface:${Deps.zinc.version}",
    ivy"org.scala-sbt:util-interface:${Deps.zinc.version}"
  ) ++ Agg(
    if (ZincWorkerUtil.isScala3(crossScalaVersion))
      ivy"org.scala-lang::scala3-compiler:${crossScalaVersion}"
    else ivy"org.scala-lang:scala-compiler:${crossScalaVersion}"
  )

  def resources = Task {
    os.copy(generatedSources().head.path / "META-INF", Task.dest / "META-INF")
    Seq(PathRef(Task.dest))
  }

  def compilerBridgeIvyDeps: T[Agg[Dep]] = Agg(
    (if (ZincWorkerUtil.isScala3(crossScalaVersion))
       ivy"org.scala-lang:scala3-sbt-bridge:${crossScalaVersion}"
     else ivy"org.scala-sbt::compiler-bridge:${Deps.zinc.version}").exclude("*" -> "*")
  )

  def compilerBridgeSourceJars: T[Agg[PathRef]] = Task {
    resolveDeps(
      Task.Anon { compilerBridgeIvyDeps().map(bindDependency()) },
      sources = true
    )()
  }

  def generatedSources = Task {

    compilerBridgeSourceJars().foreach { jar =>
      os.unzip(jar.path, Task.dest)
    }

    Seq(PathRef(Task.dest))
  }
}

def formatDep(dep: Dep) = {
  val d = Lib.depToDependency(dep, Deps.scalaVersion)
  s"${d.module.organization.value}:${d.module.name.value}:${d.version}"
}

def listIn(path: os.Path) = interp.watchValue(os.list(path).map(_.last))

object idea extends MillPublishScalaModule {
  def moduleDeps = Seq(build.scalalib, build.runner)
}

val dummyDeps: Seq[Dep] = Seq(
  Deps.DocDeps.millScip,
  Deps.semanticDbJava,
  Deps.semanticDBscala,
  Deps.TestDeps.scalaTest,
  Deps.TestDeps.zioTest,
  Deps.acyclic,
  Deps.scalacScoverage2Plugin,
  ivy"com.lihaoyi:::ammonite:${Deps.ammoniteVersion}"
) ++ Deps.transitiveDeps ++ Deps.RuntimeDeps.all

implicit object DepSegment extends Cross.ToSegments[Dep]({ dep =>
      val depString = formatDep(dep)
      // these cross module names cause problems on windows, and anyway they
      // are not necessary in order to load the project into IntelliJ anyway
      List(depString.replace(':', '_'))
    })

/**
 * Dummy module(s) to let Dependency/showUpdates or Scala-Steward find
 * and bump dependency versions we use at runtime
 */
object dummy extends Cross[DependencyFetchDummy](dummyDeps)
trait DependencyFetchDummy extends ScalaModule with Cross.Module[Dep] {
  def scalaVersion = Deps.scala2Version
  def compileIvyDeps = Agg(crossValue)
}