skeleton and sbt-chisel-dep

[escou64]

I'm currently trying to use subprojects as described in the skeleton branch and with sbt-chisel-dep. Here is the hierarchy of my projetc and an example of build.sbt:

• myproj/
  • build.sbt
  • src/
  • subproj1/
  • build.sbt
  • src/
  • subproj2/
  • build.sbt
  • src/

def scalacOptionsVersion(scalaVersion: String): Seq[String] = {
  Seq() ++ {
    // If we're building with Scala > 2.11, enable the compile option
    //  switch to support our anonymous Bundle definitions:
    //  https://github.com/scala/bug/issues/10047
    CrossVersion.partialVersion(scalaVersion) match {
      case Some((2, scalaMajor: Long)) if scalaMajor < 12 => Seq()
      case _ => Seq("-Xsource:2.11")
    }
  }
}

def javacOptionsVersion(scalaVersion: String): Seq[String] = {
  Seq() ++ {
    // Scala 2.12 requires Java 8. We continue to generate
    //  Java 7 compatible code for Scala 2.11
    //  for compatibility with old clients.
    CrossVersion.partialVersion(scalaVersion) match {
      case Some((2, scalaMajor: Long)) if scalaMajor < 12 =>
        Seq("-source", "1.7", "-target", "1.7")
      case _ =>
        Seq("-source", "1.8", "-target", "1.8")
    }
  }
}

scalacOptions ++= scalacOptionsVersion(scalaVersion.value)

javacOptions ++= javacOptionsVersion(scalaVersion.value)

resolvers ++= Seq(
  Resolver.sonatypeRepo("snapshots"),
  Resolver.sonatypeRepo("releases")
)

addCompilerPlugin("org.scalamacros" % "paradise" % "2.1.0" cross CrossVersion.full)

// Provide a managed dependency on X if -DXVersion="" is supplied on the command line.
val defaultVersions = Seq(
  "chisel-iotesters" -> "1.4.1+",
  "chiseltest"  -> "0.2.1+"
  )

val projDeps = chisel.dependencies(Seq(
  ("org.myproj" %% "subproj1" % "0.0.1-SNAPSHOT", "gen/subproj1"),
  ("org.myproj" %% "subproj2" % "0.0.1-SNAPSHOT", "gen/subproj2")
))

libraryDependencies ++= defaultVersions.map { case (dep, ver) =>
  "edu.berkeley.cs" %% dep % sys.props.getOrElse(dep + "Version", ver) }
libraryDependencies ++= projDeps.libraries

val dependentProjects = projDeps.projects

lazy val myproj = (project in file("."))
    .settings(
      version := "0.0.1-SNAPSHOT",
      organization := "org.myproj",
      scalaVersion := "2.12.10",
      publishLocal := {},
      publish := {},
      packagedArtifacts := Map.empty,
      libraryDependencies ++= projDeps.libraries
    )
    .dependsOn(dependentProjects.map(classpathDependency(_)): _*)
    .aggregate(dependentProjects: _*)

In subproj2/src/test/scala, I have a ChiselFlatSpec tester hat I run with the sbt command 'testOnly subproj2.Tester'. But, when I launch it from the myproj directory, it seems to check all the different subproject before launch it:

[info] Run completed in 25 milliseconds.
[info] Total number of tests run: 0
[info] Suites: completed 0, aborted 0
[info] Tests: succeeded 0, failed 0, canceled 0, ignored 0, pending 0
[info] No tests were executed.
[info] Passed: Total 0, Failed 0, Errors 0, Passed 0
[info] No tests to run for Test / testOnly
[info] ScalaTest
[info] Run completed in 10 milliseconds.
[info] Total number of tests run: 0
[info] Suites: completed 0, aborted 0
[info] Tests: succeeded 0, failed 0, canceled 0, ignored 0, pending 0
[info] No tests were executed.
[info] Passed: Total 0, Failed 0, Errors 0, Passed 0

[info] [0.015] RAN 8 CYCLES PASSED
[info] Tester:
[info] InitRam
[info] - should test read sequences
[info] - should test write sequences
[info] ScalaTest
[info] Run completed in 6 seconds, 173 milliseconds.
[info] Total number of tests run: 2
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 2, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[info] Passed: Total 2, Failed 0, Errors 0, Passed 2

It it is not a major problem at the moment (I only have two sub-projects), it could be penalizing if this number increases. Do you know what this could be due to? Maybe the management of ChiselFlatSpec is not compatible the subprojects or have I badly configured my build.sbt?

[ucbjrl]

Investigation is currently underway into more official techniques to support switching chisel dependencies between source-based and published-jar-based alternatives. Development of sbt-chisel-dep is suspended pending the outcome of this investigation.

[jackkoenig]

@escou64 I wanted to let you know that a better way of handling this was merged in https://github.com/freechipsproject/chisel3/pull/1563 and it has a short description in the README: https://github.com/freechipsproject/chisel3#building-chisel-with-firrtl-in-the-same-sbt-project