WIP: Update CI cache to include Scala.js artifacts

[smarter]

The scala-js sbt plugin downloads artifacts directly from maven,
bypassing our proxy (set using
https://github.com/lampepfl/dotty-drone/blob/master/dotty-docker/repositories),
this lead to us being banned from maven. I regenerated a docker image
with a cache containing these artfiacts.

[smarter]

@sjrd any reason you're not using the default resolvers ? https://github.com/scala-js/scala-js/blob/d289077055727fc482d02b9629fd7f00aab681b6/sbt-plugin/src/main/scala/org/scalajs/sbtplugin/ScalaJSPlugin.scala#L204

[smarter]

Also is there a better way to trigger download of the linker than calling the scalaJSIR task which compiles a bunch of stuff ? It looks like the scalaJSLinker task cannot be called from the sbt repl. Ideally I think calling the update task should download everything needed to compile the code, including the linker.

[dwijnand]

It looks like the scalaJSLinker task cannot be called from the sbt repl.

The keys should be Compile / fastOptJS / scalaJSLinker and Compile / fullOptJS / scalaJSLinker. What do you get when you invoke them?

[smarter]

ah indeed, something like sjsJUnitTests/compile:fastOptJS::scalaJSLinker works.

[sjrd]

any reason you're not using the default resolvers ?

Yes:
scala-js/scala-js#3805 (comment)

[smarter]

But couldn't you use ivyConfiguration.value which includes this stuff instead of making a custom InlineIvyConfiguration ? This is what we do in sbt-dotty.

[sjrd]

Hum, perhaps. I'll try tomorrow.