v1.4.1

Pass compiler args as an @argument file

You can shorten or simplify a Scala CLI command by using an @argument file to specify a text file that contains compiler arguments.

-d
outputDirectory

The feature may help to work around the Windows command line character limit, among other things, making sure your scripts run on any operating system of your choice.

scala-cli run -e 'println("Hey, I am using an @args file!")' @args.txt

This works similarly to the command-line argument files feature of Java 9 and fixes backwards compatibility with the old scala runner (pre-Scala-3.5.0).

Added by @kasiaMarek in #3012

Explicitly enable or disable multithreading in Scala Native

It is now possible to explicitly enable or disable multithreading in Scala Native builds.
You can do it by setting the //> using nativeMultithreading directive:

//> using platform native
//> using nativeMultithreading
import scala.concurrent._
import scala.concurrent.duration._
import ExecutionContext.Implicits.global
val promise = Promise[Int]()
val thread = new Thread(new Runnable {
    def run(): Unit = {
      Thread.sleep(100)
      promise.success(42)
    }
  })
thread.start()
val result = Await.result(promise.future, 2.seconds)
println(result)

Or the --native-multithreading command line option:

scala-cli run native_multithreading.sc --native --native-multithreading

Added by @Gedochao in #3011.

Features

• Add a command line option & directive for enabling/disabling Scala Native multithreading by @Gedochao in #3011
• feat: allow to pass scalac options using files by @kasiaMarek in #3012

Fixes

• fix for 2954 running script in root dir by @philwalk in #2988
• Pass javaHome to Bloop by @kasiaMarek in #2985
• bugfix: Print info diagnostics by @tgodzik in #2990
• Ensure BSP respects --power mode by @Gedochao in #2997
• Add Scala to pure Java test builds by @Gedochao in #3009
• Fix --offline mode for scala-cli as scala installation via coursier by @Gedochao in #3029
• BugFix - Export issues when full scala version is not used in directives by @yadavan88 in #3032

Documentation changes

• Fix typo in docs by @ghostdogpr in #2996
• docs: remove . from command snippet by @spaceunifyfifty in #2998

Updates

• Update scala-cli.sh launcher for 1.4.0 by @github-actions in #2992
• Update winget-releaser to latest by @vedantmgoyal9 in #2991
• Update ammonite to 3.0.0-M2-13-23a8ef64 by @scala-steward in #2989
• Update Scala 3 Next RC to 3.5.0-RC2 by @scala-steward in #2981
• chore: Bump outdated javac-semanticdb plugin to 0.10.0 by @tgodzik in #3004
• Update Scala 3 Next RC to 3.5.0-RC3 by @scala-steward in #3002
• Update sbt to 1.10.1 by @scala-steward in #3015
• Bump Scala 3 Next RC to 3.5.0-RC4 by @Gedochao in #3018
• Swap scalameta trees for semanticdb-shared & bump scalameta to 4.9.8 by @Gedochao in #3017
• Update Scala 3 Next RC to 3.5.1-RC1 by @scala-steward in #3027

New Contributors

• @vedantmgoyal9 made their first contribution in #2991
• @ghostdogpr made their first contribution in #2996
• @spaceunifyfifty made their first contribution in #2998

Full Changelog: v1.4.0...v1.4.1