Fix publish

build.sc

@@ -223,7 +223,8 @@ class Build(val crossScalaVersion: String)
     else state + "-maybe-stale"
   }
   def constantsFile = T.persistent {
-    val dest = T.dest / "Constants.scala"
+    val dir  = T.dest / "constants"
+    val dest = dir / "Constants.scala"
     val testRunnerMainClass = `test-runner`(Scala.defaultInternal)
       .mainClass()
       .getOrElse(sys.error("No main class defined for test-runner"))
@@ -291,8 +292,8 @@ class Build(val crossScalaVersion: String)
          |}
          |""".stripMargin
     if (!os.isFile(dest) || os.read(dest) != code)
-      os.write.over(dest, code)
-    PathRef(dest)
+      os.write.over(dest, code, createFolders = true)
+    PathRef(dir)
   }
   def generatedSources = super.generatedSources() ++ Seq(constantsFile())
 
@@ -311,7 +312,8 @@ class Build(val crossScalaVersion: String)
     def generatedSources = super.generatedSources() ++ Seq(constantsFile())
 
     def constantsFile = T.persistent {
-      val dest = T.dest / "Constants2.scala"
+      val dir  = T.dest / "constants"
+      val dest = dir / "Constants2.scala"
       val code =
         s"""package scala.build.tests
            |
@@ -321,8 +323,8 @@ class Build(val crossScalaVersion: String)
            |}
            |""".stripMargin
       if (!os.isFile(dest) || os.read(dest) != code)
-        os.write.over(dest, code)
-      PathRef(dest)
+        os.write.over(dest, code, createFolders = true)
+      PathRef(dir)
     }
 
     // uncomment below to debug tests in attach mode on 5005 port
@@ -432,7 +434,8 @@ trait CliIntegrationBase extends SbtModule with ScalaCliPublishModule with HasTe
     }
 
     def constantsFile = T.persistent {
-      val dest = T.dest / "Constants.scala"
+      val dir  = T.dest / "constants"
+      val dest = dir / "Constants.scala"
       val mostlyStaticDockerfile =
         os.rel / ".github" / "scripts" / "docker" / "ScalaCliSlimDockerFile"
       assert(
@@ -461,8 +464,8 @@ trait CliIntegrationBase extends SbtModule with ScalaCliPublishModule with HasTe
            |}
            |""".stripMargin
       if (!os.isFile(dest) || os.read(dest) != code)
-        os.write.over(dest, code)
-      PathRef(dest)
+        os.write.over(dest, code, createFolders = true)
+      PathRef(dir)
     }
     def generatedSources = super.generatedSources() ++ Seq(constantsFile())
 
@@ -586,7 +589,8 @@ class BloopRifle(val crossScalaVersion: String) extends ScalaCliCrossSbtModule
   def mainClass = Some("scala.build.blooprifle.BloopRifle")
 
   def constantsFile = T.persistent {
-    val dest = T.dest / "Constants.scala"
+    val dir  = T.dest / "constants"
+    val dest = dir / "Constants.scala"
     val code =
       s"""package scala.build.blooprifle.internal
          |
@@ -598,8 +602,8 @@ class BloopRifle(val crossScalaVersion: String) extends ScalaCliCrossSbtModule
          |}
          |""".stripMargin
     if (!os.isFile(dest) || os.read(dest) != code)
-      os.write.over(dest, code)
-    PathRef(dest)
+      os.write.over(dest, code, createFolders = true)
+    PathRef(dir)
   }
   def generatedSources = super.generatedSources() ++ Seq(constantsFile())
 

project/settings.sc

@@ -706,6 +706,8 @@ trait ScalaCliCompile extends ScalaModule {
     else T.persistent {
       val out = os.pwd / workspaceDirName / ".unused"
 
+      val workspace = T.dest / "workspace"
+      os.makeDir.all(workspace)
       val sourceFiles = allSources()
         .map(_.path)
         .filter(os.exists(_))
@@ -724,6 +726,7 @@ trait ScalaCliCompile extends ScalaModule {
             asOpt(compileClasspath().map(_.path), "--jar"),
             asOpt(scalacPluginClasspath().map(p => s"-Xplugin:${p.path}"), "-O"),
             Seq("--jvm", "zulu:17"),
+            workspace,
             sourceFiles
           )
 
@@ -735,6 +738,33 @@ trait ScalaCliCompile extends ScalaModule {
 
       CompilationResult(out / "unused.txt", PathRef(classFilesDir))
     }
+
+  // Same as https://github.com/com-lihaoyi/mill/blob/084a6650c587629900560b92e3eeb3b836a6f04f/scalalib/src/Lib.scala#L165-L173
+  // but ignoring hidden directories too, and calling os.isFile only after checking the extension
+  private def findSourceFiles(sources: Seq[PathRef], extensions: Seq[String]): Seq[os.Path] = {
+    def isHiddenFile(path: os.Path) = {
+      val isHidden = path.last.startsWith(".")
+      if (isHidden) {
+        val printable =
+          if (path.startsWith(os.pwd)) path.relativeTo(os.pwd).segments.mkString(File.separator)
+          else path.toString
+        System.err.println(
+          s"Warning: found unexpected hidden file $printable in sources, you may want to remove it."
+        )
+      }
+      isHidden
+    }
+    for {
+      root <- sources
+      if os.exists(root.path)
+      path <-
+        (if (os.isDir(root.path)) os.walk(root.path, skip = isHiddenFile(_)) else Seq(root.path))
+      if extensions.exists(path.ext == _) && os.isFile(path)
+    } yield path
+  }
+  override def allSourceFiles = T {
+    findSourceFiles(allSources(), Seq("scala", "java")).map(PathRef(_))
+  }
 }
 
 trait ScalaCliScalafixModule extends ScalafixModule with ScalaCliCompile {