Remove ant support

Now that scala/scala#6255 is merged

Author: lrytz

README.md

@@ -19,11 +19,7 @@ Test categories (subdirectories under `test/files`)
 As partest links directly against the compiler being tested, it's cross-versioned against
 the compiler version that it's intended for.
 
-There are three ways of invoking partest:
-
-  - ant (see https://github.com/scala/scala/blob/2.11.x/test/build-partest.xml and https://github.com/scala/scala-partest/blob/master/src/main/scala/scala/tools/partest/PartestTask.scala)
-  - sbt (details below)
-  - the [test/partest script](https://github.com/scala/scala/blob/2.11.x/test/partest), which uses ant to set up the classpath in the same way as the ant task, but then launches [ConsoleRunner](https://github.com/scala/scala-partest/blob/master/src/main/scala/scala/tools/partest/nest/ConsoleRunner.scala) directly.
+Partest is invoked from sbt.
 
 The compiler to be tested must be on the classpath.
 The corresponding jar or class directory is detected by [FileManager::findArtifact](https://github.com/scala/scala-partest/blob/master/src/main/scala/scala/tools/partest/nest/FileManager.scala#L123).

build.sbt

@@ -21,7 +21,6 @@ enableOptimizer
 
 // dependencies
 // versions involved in integration builds / that change frequently should be keys, set above!
-libraryDependencies += "org.apache.ant"                 % "ant"            % "1.8.4" % "provided"
 libraryDependencies += "com.googlecode.java-diff-utils" % "diffutils"      % "1.3.0"
 libraryDependencies += "org.scala-sbt"                  % "test-interface" % "1.0"
 // mark all scala dependencies as provided which means one has to explicitly provide them when depending on partest

src/main/resources/scala/tools/partest/antlib.xml

@@ -89,9 +89,6 @@ class Runner(val testFile: File, val suiteRunner: SuiteRunner, val nestUI: NestU
 
   lazy val outDir = { outFile.mkdirs() ; outFile }
 
-  // oh boy...
-  private lazy val antLauncher = SFile(Path(envOrNone("ANT_HOME") getOrElse "/opt/ant/") / "lib/ant-launcher.jar")
-
   type RanOneTest = (Boolean, LogContext)
 
   def showCrashInfo(t: Throwable) {
@@ -594,42 +591,6 @@ class Runner(val testFile: File, val suiteRunner: SuiteRunner, val nestUI: NestU
     compilationRounds(testFile).forall(x => nextTestActionExpectTrue("compilation failed", x.isOk)) && andAlso
   }
 
-  // Apache Ant 1.6 or newer
-  def ant(args: Seq[String], output: File): Boolean = {
-    val antOptions =
-      if (nestUI.verbose) List("-verbose", "-noinput")
-      else List("-noinput")
-    val cmd = javaCmdPath +: (
-      suiteRunner.javaOpts.split(' ').map(_.trim).filter(_ != "") ++ Seq(
-        "-classpath",
-        antLauncher.path,
-        "org.apache.tools.ant.launch.Launcher"
-      ) ++ antOptions ++ args
-    )
-
-    runCommand(cmd, output)
-  }
-
-  def runAntTest(): (Boolean, LogContext) = {
-    val (swr, wr) = newTestWriters()
-
-    val succeeded = try {
-      val binary = "-Dbinary="+ fileManager.distKind
-      val args = Array(binary, "-logfile", logFile.getPath, "-file", testFile.getPath)
-      nestUI.verbose("ant "+args.mkString(" "))
-
-      pushTranscript(s"ant ${args.mkString(" ")}")
-      nextTestActionExpectTrue("ant failed", ant(args, logFile)) && diffIsOk
-    }
-    catch { // *catch-all*
-      case e: Exception =>
-        nestUI.warning("caught "+e)
-        false
-    }
-
-    (succeeded, LogContext(logFile, swr, wr))
-  }
-
   def extraClasspath = kind match {
     case "specialized"  => List(PathSettings.srcSpecLib.fold(sys.error, identity))
     case _              => Nil
@@ -714,7 +675,6 @@ class Runner(val testFile: File, val suiteRunner: SuiteRunner, val nestUI: NestU
     if (kind == "neg" || (kind endsWith "-neg")) runNegTest()
     else kind match {
       case "pos"          => runTestCommon(true)
-      case "ant"          => runAntTest()
       case "res"          => runResidentTest()
       case "scalap"       => runScalapTest()
       case "script"       => runScriptTest()
@@ -792,7 +752,7 @@ object Properties extends scala.util.PropertiesTrait {
   protected def pickJarBasedOn  = classOf[SuiteRunner]
 }
 
-/** Extended by Ant- and ConsoleRunner for running a set of tests. */
+/** Used by SBT- and ConsoleRunner for running a set of tests. */
 class SuiteRunner(
   val testSourcePath: String, // relative path, like "files", or "pending"
   val fileManager: FileManager,