Can you access a SBT SettingKey inside a Command?

Question

I am writing a Command and want to use the Logger in TaskStreams but this is not possible since you cannot access .value of a SettingK

Answer 1

streams is intended for tasks, not commands.

So one way is to create a "holder" TaskKey and get a stream of that, for instance sbt-pgp creates and uses pgpCmdContext - see the definition of pgp-cmd.

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Another way is using sLog, but I'm not sure if sLog should be used here:

val myCommand = Command.single("myCommand") { case (s, arg) =>
  val extracted = Project extract s
  val log = extracted get sLog
  log info "Some logging"
  currentState
}