Move run-targets into RunModule

build.sc

@@ -165,6 +165,7 @@ object Deps {
   def scalaCompiler(scalaVersion: String) = ivy"org.scala-lang:scala-compiler:${scalaVersion}"
   // last scalafmt release supporting Java 8 is 3.7.15
   val scalafmtDynamic = ivy"org.scalameta::scalafmt-dynamic:3.7.15" // scala-steward:off
+  def scalap(scalaVersion: String) = ivy"org.scala-lang:scalap:${scalaVersion}"
   def scalaReflect(scalaVersion: String) = ivy"org.scala-lang:scala-reflect:${scalaVersion}"
   val scalacScoveragePlugin = ivy"org.scoverage:::scalac-scoverage-plugin:1.4.11"
   val scoverage2Version = "2.1.0"
@@ -448,7 +449,7 @@ trait MillStableScalaModule extends MillPublishScalaModule with Mima {
     ProblemFilter.exclude[ReversedMissingMethodProblem](
       "mill.scalanativelib.ScalaNativeModule.mill$scalanativelib$ScalaNativeModule$$super$zincAuxiliaryClassFileExtensions"
     ),
-    // (7x) See https://github.com/com-lihaoyi/mill/pull/3064
+    // (6x) See https://github.com/com-lihaoyi/mill/pull/3064
     // Moved targets up in trait hierarchy, but also call them via super, which I think is safe
     ProblemFilter.exclude[ReversedMissingMethodProblem](
       "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$zincWorker"
@@ -459,9 +460,6 @@ trait MillStableScalaModule extends MillPublishScalaModule with Mima {
     ProblemFilter.exclude[ReversedMissingMethodProblem](
       "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$runUseArgsFile"
     ),
-    ProblemFilter.exclude[ReversedMissingMethodProblem](
-      "mill.scalalib.JavaModule#JavaModuleTests.mill$scalalib$JavaModule$JavaModuleTests$$super$testClasspath"
-    ),
     ProblemFilter.exclude[ReversedMissingMethodProblem](
       "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$super$forkArgs"
     ),
@@ -470,6 +468,32 @@ trait MillStableScalaModule extends MillPublishScalaModule with Mima {
     ),
     ProblemFilter.exclude[ReversedMissingMethodProblem](
       "mill.scalalib.JavaModule.mill$scalalib$JavaModule$$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"
     )
   )
   def mimaPreviousVersions: T[Seq[String]] = Settings.mimaBaseVersions
@@ -740,7 +764,7 @@ object scalalib extends MillStableScalaModule {
 
   object worker extends MillPublishScalaModule with BuildInfo {
     def moduleDeps = Seq(scalalib.api)
-    def ivyDeps = Agg(Deps.zinc, Deps.log4j2Core)
+    def ivyDeps = Agg(Deps.zinc, Deps.log4j2Core, Deps.scalap(scalaVersion()))
     def buildInfoPackageName = "mill.scalalib.worker"
     def buildInfoObjectName = "Versions"
     def buildInfoMembers = Seq(

example/basic/4-builtin-commands/build.sc

@@ -82,7 +82,7 @@ foo.artifactName
 /** Usage
 
 > mill inspect foo.run
-foo.run(JavaModule.scala:...)
+foo.run(RunModule.scala:...)
     Runs this module's code in a subprocess and waits for it to finish
 Inputs:
     foo.finalMainClass

integration/feature/docannotations/test/src/DocAnnotationsTests.scala

@@ -67,7 +67,7 @@ object DocAnnotationsTests extends IntegrationTestSuite {
 
       assert(
         globMatches(
-          """core.run(JavaModule.scala:...)
+          """core.run(RunModule.scala:...)
             |    Runs this module's code in a subprocess and waits for it to finish
             |
             |    args <str>...

scalalib/api/src/mill/scalalib/api/ZincWorkerApi.scala

@@ -144,6 +144,9 @@ trait ZincWorkerApi {
       auxiliaryClassFileExtensions = Seq.empty[String]
     )
 
+  /**
+   * Find main classes by inspecting the Zinc compilation analysis file.
+   */
   def discoverMainClasses(compilationResult: CompilationResult): Seq[String]
 
   def docJar(
@@ -153,4 +156,12 @@ trait ZincWorkerApi {
       scalacPluginClasspath: Agg[PathRef],
       args: Seq[String]
   )(implicit ctx: ZincWorkerApi.Ctx): Boolean
+
+  /**
+   * Discover main classes by inspecting the classpath.
+   */
+  def discoverMainClasses(classpath: Seq[os.Path]): Seq[String] = {
+    // We need this default-impl to keep binary compatinility (0.11.x)
+    Seq.empty
+  }
 }