Use scripted instead of manual sbt-plugin-test

This is a first step for scala-js#3758 and allows us to evaluate scripted as
potential solution to scala-js#3661/scala-js#3714.

Author: gzm0

Jenkinsfile

@@ -369,28 +369,9 @@ def Tasks = [
   ''',
 
   "sbtplugin-test": '''
-    setJavaVersion 1.8
-    # Publish Scala.js artifacts locally
-    # Then go into standalone project and test
-    npm install &&
-    sbt ++2.11.12 compiler/publishLocal library/publishLocal \
-                  testInterface/publishLocal testBridge/publishLocal \
-                  jUnitPlugin/publishLocal jUnitRuntime/publishLocal &&
-    sbt ++$toolsscala \
-        ir/publishLocal logging/publishLocal \
-        linker/publishLocal jsEnvs/publishLocal \
-        nodeJSEnv/publishLocal testAdapter/publishLocal \
-        sbtPlugin/publishLocal &&
-    cd sbt-plugin-test &&
     setJavaVersion $java &&
-    sbt noDOM/run \
-        noDOM/testHtml multiTestJS/testHtml \
-        test \
-        noDOM/testScalaJSModuleInitializers \
-        noDOM/clean noDOM/concurrentUseOfLinkerTest \
-        multiTestJS/test:testScalaJSSourceMapAttribute &&
-    sbt 'set scalaJSStage in Global := FullOptStage' \
-        noDOM/testHtml multiTestJS/testHtml
+    npm install &&
+    sbt sbtPlugin/scripted
   ''',
 
   "partest-noopt": '''
@@ -458,7 +439,7 @@ allJavaVersions.each { javaVersion ->
   quickMatrix.add([task: "tools", scala: "2.11.12", java: javaVersion])
 }
 quickMatrix.add([task: "partestc", scala: "2.11.0", java: mainJavaVersion])
-quickMatrix.add([task: "sbtplugin-test", toolsscala: "2.12.8", java: mainJavaVersion])
+quickMatrix.add([task: "sbtplugin-test", java: mainJavaVersion])
 
 // The 'full' matrix
 def fullMatrix = quickMatrix.clone()

project/Build.scala

@@ -9,6 +9,7 @@ import Keys._
 
 import com.typesafe.tools.mima.plugin.MimaPlugin.autoImport._
 import de.heikoseeberger.sbtheader.HeaderPlugin.autoImport._
+import ScriptedPlugin.autoImport._
 
 import java.util.Arrays
 
@@ -764,7 +765,8 @@ object Build {
         baseDirectory.value.getParentFile / "test-common/src/test/scala"
   ).dependsOn(jsEnvs, jUnitAsyncJVM % "test")
 
-  lazy val plugin: Project = Project(id = "sbtPlugin", base = file("sbt-plugin")).settings(
+  lazy val plugin: Project = Project(id = "sbtPlugin", base = file("sbt-plugin"))
+    .enablePlugins(ScriptedPlugin).settings(
       commonSettings,
       publishIvySettings,
       fatalWarningsSettings,
@@ -781,6 +783,25 @@ object Build {
 
       addSbtPlugin("org.portable-scala" % "sbt-platform-deps" % "1.0.0"),
 
+      scriptedLaunchOpts += "-Dplugin.version=" + version.value,
+      scriptedDependencies := {
+        scriptedDependencies.dependsOn(
+            publishLocal in compiler,
+            publishLocal in library,
+            publishLocal in testInterface,
+            publishLocal in testBridge,
+            publishLocal in jUnitPlugin,
+            publishLocal in jUnitRuntime,
+            publishLocal in irProject,
+            publishLocal in logging,
+            publishLocal in linker,
+            publishLocal in jsEnvs,
+            publishLocal in nodeJSEnv,
+            publishLocal in testAdapter,
+            publishLocal in jsEnvs,
+        ).value
+      },
+
       // Add API mappings for sbt (seems they don't export their API URL)
       apiMappings ++= {
         val deps = (externalDependencyClasspath in Compile).value

sbt-plugin-test/project/build.sbt

@@ -14,7 +14,7 @@ version := scalaJSVersion
 
 val versionSettings = Seq(
   version := scalaJSVersion,
-  scalaVersion := "2.11.12"
+  scalaVersion := "2.12.8",
 )
 
 val baseSettings = versionSettings ++ Seq(

sbt-plugin-test/project/project/build.sbt

@@ -0,0 +1 @@
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % sys.props("plugin.version"))

sbt-plugin-test/README.md renamed to sbt-plugin/src/sbt-test/legacy/legacy/README.md

@@ -0,0 +1,11 @@
+> noDOM/run
+> noDOM/testHtml
+> multiTestJS/testHtml
+> test
+> noDOM/testScalaJSModuleInitializers
+> noDOM/clean
+> noDOM/concurrentUseOfLinkerTest
+> multiTestJS/test:testScalaJSSourceMapAttribute
+> set scalaJSStage in Global := FullOptStage
+> noDOM/testHtml
+> multiTestJS/testHtml