2.0.0.-M0 changes

[ghost]

M0 version, no scala-js but should be OK to build scalac and some compiler plugins

[gslowikowski]

Read scoverage/scalac-scoverage-plugin-core#1 (comment) and scoverage/scalac-scoverage-plugin#186 (comment) first.

These settings:

  lazy val coverageScalacRuntimeOrg = settingKey[String]("organisation name of scalac-scoverage-runtime to use")
  lazy val coverageScalacRuntimeArtifact = settingKey[String]("artifact name of scalac-scoverage-runtime to use")
  lazy val coverageScalacRuntimeVersion = settingKey[String]("version of scalac-scoverage-runtime to use")

can be replaced by one:

 lazy val coverageScalacRuntimeModule = settingKey[Option[ModuleID]]("alternative scalac-scoverage-runtime dependency, use only if you know what you are doing")

These settings:

  lazy val coverageScalacPluginOrg = settingKey[String]("organisation name of scalac-scoverage-plugin to use")
  lazy val coverageScalacPluginArtifact = settingKey[String]("artifact name of scalac-scoverage-plugin to use")
  lazy val coverageScalacPluginVersion = settingKey[String]("version of scalac-scoverage-plugin to use")

  lazy val coverageLibraryDependencies = settingKey[Seq[ModuleID]]("Use these library dependencies if coverage is enabled")

can be removed completely.

In your Scala 2.12.x with Scoverage settings you have

  coverageScalacRuntimeArtifact := "scalac-scoverage-runtime-java",
  coverageLibraryDependencies := Seq(
    coverageScalacRuntimeOrg.value %% coverageScalacRuntimeArtifact.value  % coverageScalacRuntimeVersion.value exclude("org.scala-lang", "*"),
    coverageScalacPluginOrg.value %% coverageScalacPluginArtifact.value  % coverageScalacPluginVersion.value % ScoverageSbtPlugin.ScoveragePluginConfig.name cross CrossVersion.full exclude("org.scala-lang", "*")
  )

Exclusions are part of ModuleID class so you can define

coverageScalacRuntimeModule := Some("org.scoverage" % "scalac-scoverage-runtime-java" % coverageScalacRuntimeVersion.value exclude("org.scala-lang", "*"))

or better

coverageScalacRuntimeModule := Some("org.scoverage" % "scalac-scoverage-runtime-java" % coverageScalacRuntimeVersion.value exclude("org.scala-lang", "scala-library"))

because wildcards are not translated to Maven syntax (it doesn't matter here).

Adding excludes to plugin dependency does not make sense because scalac plugins dependencies are ignored. Only plugin artifact's absolute path is passed to scalac.

[ckipp01]

This is quite dated. In an effort to do some cleanup I'm going to go ahead and close.