WIP: streamline mill.api.Ctx usage

libs/scalalib/api/src/mill/scalalib/api/JvmWorkerApi.scala

@@ -4,7 +4,7 @@ import mill.api.internal.CompileProblemReporter
 import mill.define.PathRef
 
 object JvmWorkerApi {
-  type Ctx = mill.define.TaskCtx.Dest & mill.define.TaskCtx.Log
+  type Ctx = mill.define.TaskCtx
 }
 trait JvmWorkerApi {
 

libs/scalalib/src/mill/scalalib/CoursierModule.scala

@@ -4,7 +4,7 @@ import coursier.cache.FileCache
 import coursier.core.Resolution
 import coursier.params.ResolutionParams
 import coursier.{Dependency, Repository, Resolve, Type}
-import mill.define.Task
+import mill.define.{Task, TaskCtx}
 import mill.define.{PathRef}
 import mill.api.{Result}
 import mill.util.Jvm
@@ -44,6 +44,7 @@ trait CoursierModule extends mill.define.Module {
       mapDependencies = Some(mapDependencies()),
       customizer = resolutionCustomizer(),
       coursierCacheCustomizer = coursierCacheCustomizer(),
+      ctx = Some(Task.ctx()),
       resolutionParams = resolutionParams(),
       offline = Task.offline
     )
@@ -64,6 +65,7 @@ trait CoursierModule extends mill.define.Module {
       mapDependencies = Some(mapDependencies()),
       customizer = resolutionCustomizer(),
       coursierCacheCustomizer = coursierCacheCustomizer(),
+      ctx = Some(Task.ctx()),
       resolutionParams = resolutionParams(),
       offline = Task.offline
     )
@@ -192,6 +194,7 @@ object CoursierModule {
       bind: Dep => BoundDep,
       mapDependencies: Option[Dependency => Dependency] = None,
       customizer: Option[coursier.core.Resolution => coursier.core.Resolution] = None,
+      ctx: Option[TaskCtx] = None,
       coursierCacheCustomizer: Option[
         coursier.cache.FileCache[coursier.util.Task] => coursier.cache.FileCache[coursier.util.Task]
       ] = None,

libs/scalalib/src/mill/scalalib/TestModule.scala

@@ -575,7 +575,7 @@ object TestModule {
   def handleResults(
       doneMsg: String,
       results: Seq[TestResult],
-      ctx: TaskCtx.Env & TaskCtx.Dest,
+      ctx: TaskCtx,
       testReportXml: Option[String],
       props: Option[Map[String, String]] = None
   ): Result[(String, Seq[TestResult])] =

libs/scalalib/src/mill/scalalib/dependency/DependencyUpdatesImpl.scala

@@ -1,6 +1,5 @@
 package mill.scalalib.dependency
 
-import mill.define.TaskCtx.Log
 import mill.define.*
 import mill.scalalib.dependency.updates.{
   DependencyUpdates,

libs/scalalib/src/mill/scalalib/publish/LocalIvyPublisher.scala

@@ -19,7 +19,7 @@ class LocalIvyPublisher(localIvyRepo: os.Path) {
       ivy: Either[String, os.Path],
       artifact: Artifact,
       publishInfos: Seq[PublishInfo]
-  )(implicit ctx: TaskCtx.Log): Seq[os.Path] = {
+  )(implicit ctx: TaskCtx): Seq[os.Path] = {
 
     ctx.log.info(s"Publishing ${artifact} to ivy repo ${localIvyRepo}")
     val releaseDir = localIvyRepo / artifact.group / artifact.id / artifact.version

libs/scalalib/src/mill/scalalib/publish/LocalM2Publisher.scala

@@ -10,8 +10,6 @@ class LocalM2Publisher(m2Repo: os.Path) {
    * @param pom The POM of this module
    * @param artifact Coordinates of this module
    * @param publishInfos Files to publish in this module
-   * @param ctx
-   * @return
    */
   def publish(
       pom: os.Path,

libs/scalalib/test/src/mill/scalalib/publish/LocalM2PublisherTests.scala

@@ -2,15 +2,33 @@ package mill.scalalib.publish
 
 import mill.define.{TaskCtx, PathRef}
 import mill.api.{Logger}
+import mill.api.internal.{CompileProblemReporter, TestReporter}
 import mill.internal.DummyLogger
+import os.Path
 import utest.{TestSuite, Tests, assert, test}
 
 object LocalM2PublisherTests extends TestSuite {
+
+  class DummyCtx extends TaskCtx {
+    override def log: Logger = DummyLogger
+    // stubs
+    override def arg[T](index: Int): T = ???
+    override def args: IndexedSeq[?] = ???
+    override def reporter: Int => Option[CompileProblemReporter] = ???
+    override def systemExit: Int => Nothing = ???
+    override def testReporter: TestReporter = ???
+    override def dest: os.Path = ???
+    override def env: Map[String, String] = ???
+    override def fork: TaskCtx.Fork.Api = ???
+    override def jobs: Int = ???
+    override def workspace: Path = ???
+    override def offline: Boolean = ???
+    override def fail(msg: String): Nothing = ???
+  }
+
   override def tests: Tests = Tests {
 
-    implicit val dummyLog: TaskCtx.Log = new TaskCtx.Log {
-      override def log: Logger = DummyLogger
-    }
+    implicit val dummyCtx: TaskCtx = new DummyCtx
 
     def publishAndCheck(repo: os.Path): Unit = {
       val subrepo = repo / "group/org/id/version"

libs/testrunner/src/mill/testrunner/TestRunner.scala

@@ -13,7 +13,7 @@ import mill.util.Jvm
       args: Seq[String],
       testReporter: TestReporter,
       classFilter: Class[?] => Boolean = _ => true
-  )(implicit ctx: TaskCtx.Log): (String, Seq[mill.testrunner.TestResult]) = {
+  )(implicit ctx: TaskCtx): (String, Seq[mill.testrunner.TestResult]) = {
     Jvm.withClassLoader(
       classPath = entireClasspath.toVector,
       sharedPrefixes = Seq("sbt.testing.")