scalajs cross project support as plugin

3 files changed, 116 insertions, 0 deletions

diff --git a/plugins/scalajs/ScalaJs.scala b/plugins/scalajs/ScalaJs.scala
new file mode 100644
index 0000000..bde3307
--- /dev/null
+++ b/plugins/scalajs/ScalaJs.scala
@@ -0,0 +1,82 @@
+import java.io.File
+
+import cbt._
+
+import scala.collection.immutable.Seq
+
+trait ScalaJsSbtDependencyDsl extends SbtDependencyDsl { self: ScalaJsBuild =>
+
+  //Note: We make same assumption about scala version.
+  //In order to be able to choose different scala version, one has to use %.
+  implicit class ScalaJsDependencyBuilder(groupId: String){
+    def %%%(artifactId: String) = new DependencyBuilder2(
+      groupId, artifactId + artifactIdSuffix, Some(scalaMajorVersion))
+  }
+}
+
+trait ScalaJsBuild extends BasicBuild with ScalaJsSbtDependencyDsl with ScalaJsInformation { outer =>
+
+  def sharedFolder = projectDirectory ++ "/shared"
+  def jvmFolder = projectDirectory ++ "/jvm"
+  def jsFolder = projectDirectory ++ "/js"
+
+  private lazy val jvmBuild = new BasicBuild(outer.context){
+    override def sources = Seq(sharedFolder ++ "/src/main/scala", jvmFolder ++ "/src/main/scala")
+    override def target = jvmFolder ++ "/target"
+    override def dependencies = outer.dependencies ++ jvmDependencies
+  }
+  private lazy val jsBuild = new BasicBuild(outer.context){
+    override def sources = Seq(sharedFolder ++ "/src/main/scala", jsFolder ++ "/src/main/scala")
+    override def target = jsFolder ++ "/target"
+    override def dependencies = outer.dependencies :+ scalaJsLibDep
+    override def scalacOptions = super.scalacOptions ++
+      Seq(s"-Xplugin:${scalaJsCompilerDep.jar.getAbsolutePath}", "-Xplugin-require:scalajs")
+  }
+
+  def jvmDependencies = Seq.empty[Dependency]
+  //TODO: implement
+  def jsDependencies = Seq.empty[Dependency]
+  def jvmCompile: Option[File] = jvmBuild.compile
+  def jsCompile: Option[File] = jsBuild.compile
+  override def compile = {
+    jvmCompile
+    jsCompile
+  }
+
+  trait JsOutputMode {
+    def option: String
+    def fileSuffix: String
+  }
+  case object FastOptJS extends JsOutputMode{
+    override val option = "-f"
+    override val fileSuffix = "fastopt"
+  }
+  case object FullOptJS extends JsOutputMode{
+    override val option = "-u"
+    override val fileSuffix = "fullopt"
+  }
+
+  private def output(mode: JsOutputMode) = s"${jsBuild.target.getAbsolutePath}/$projectName-${mode.fileSuffix}.js"
+
+  //TODO: should process all options that Scalajsld recognizes?
+  private def link(mode: JsOutputMode, outputPath: String) = {
+    lib.runMain(
+      "org.scalajs.cli.Scalajsld",
+      Seq(
+        mode.option,
+        "-s",
+        "--stdlib", s"${scalaJsLibDep.jar.getAbsolutePath}",
+        "-o", outputPath,
+        jsBuild.target.getAbsolutePath) ++
+        jsBuild.dependencies.collect{case d: BoundMavenDependency => d.jar.getAbsolutePath},
+      scalaJsCliDep.classLoader(jsBuild.context.classLoaderCache))
+  }
+  def fastOptJS = link(FastOptJS, fastOptOutput)
+  def fullOptJS = link(FullOptJS, fullOptOutput)
+  def fastOptOutput: String = output(FastOptJS)
+  def fullOptOutput: String = output(FullOptJS)
+}
+
+
+
+
diff --git a/plugins/scalajs/ScalaJsInformation.scala b/plugins/scalajs/ScalaJsInformation.scala
new file mode 100644
index 0000000..938d207
--- /dev/null
+++ b/plugins/scalajs/ScalaJsInformation.scala
@@ -0,0 +1,25 @@
+import cbt._
+
+trait ScalaJsInformation extends BasicBuild { outer =>
+
+  val sjsVersion = "0.6.8"
+  final private val sjsMajorVersion: String = lib.libMajorVersion(sjsVersion)
+  final protected val artifactIdSuffix = s"_sjs$sjsMajorVersion"
+
+  final protected val scalaJsCompilerDep =
+    Resolver( mavenCentral ).bindOne(
+      // Has to be full Scala version because the compiler is incompatible between versions
+      MavenDependency("org.scala-js", "scalajs-compiler_2.11.8", sjsVersion)
+    )
+
+  final protected val scalaJsLibDep =
+    Resolver( mavenCentral ).bindOne(
+      ScalaDependency("org.scala-js", "scalajs-library", sjsVersion)
+    )
+
+  final protected val scalaJsCliDep =
+    Resolver( mavenCentral ).bindOne(
+      ScalaDependency("org.scala-js", "scalajs-cli", sjsVersion)
+    )
+}
+
diff --git a/plugins/scalajs/build/build.scala b/plugins/scalajs/build/build.scala
new file mode 100644
index 0000000..9a73704
--- /dev/null
+++ b/plugins/scalajs/build/build.scala
@@ -0,0 +1,9 @@
+import cbt._
+
+class Build(context: Context) extends BasicBuild(context) {
+
+  override def dependencies =
+    super.dependencies :+
+      context.cbtDependency
+}
+