binary distribution: package information about jars required for scalac classpath in a separate file about scala3 HOT 9 OPEN

Note that the information about scalac/scaladoc classpath is already known to the code which does the binary distribution packaging. It's already present in bin/common, bin/common.bat, bin/scaladoc, bin/scaladoc.bat

I also notice that the classpath used in those scripts has one suspicious extra jar scala3-staging_3*.jar
It's not a transitive dependency of scala3-compiler_3, also it's not reported by SBT (show scalaInstance).

What is that jar? Is it indeed required for scalac classpath?

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Related links:

• https://youtrack.jetbrains.com/issue/SCL-22510/Cant-configure-locally-installed-Scala-SDK-for-3.3.3-and-3.4.x-versions
• https://youtrack.jetbrains.com/issue/SCL-17273/An-ability-to-create-Scala-3-SDKs-automatically

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we were proposing to heavily change the lib directory currently in #20351 (e.g. removing it or perhaps converting the contents to alias links) - so would be good to know if its actually used by other tooling - it seems it is - it would be good to work together on this

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@bishabosha
Could you please point to the particular place in the discussion mentioning "potential removing of lib folder"?

or perhaps converting the contents to alias links

Alias links to where?

it would be good to work together on this

Is there anything else we can provide from our side?

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Is there anything else we can provide from our side?

I updated the PR description of #20351. otherwise you can download the zip from 3.5.0-RC1 release

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I also notice that the classpath used in those scripts has one suspicious extra jar scala3-staging_3*.jar
It's not a transitive dependency of scala3-compiler_3, also it's not reported by SBT (show scalaInstance).

What is that jar? Is it indeed required for scalac classpath?

there is also a scala3-tasty-inspector_3 jar to go alongside scala3-staging_3 - these are not normally on the classpath for scala/scalac, but are added to the classpath if the user passes the -with-compiler argument to the launcher. (Typically the user would need to add explicit libraryDependencies to use them in sbt/mill)

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@unkarjedy what do you think of the change in #20631 which would add files which provide the classpath?

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@bishabosha Looks good. Do you already have some nightly/rc build to try it our on our side?

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Do you already have some nightly/rc build to try it our on our side?

@unkarjedy no but you can build it yourself with sbt dist/packArchive. I hope that this will be coming in 3.5.0-RC3 but that is a long time

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