classpathなどが長すぎて実行できない問題対処

build.sbt

@@ -18,3 +18,17 @@ libraryDependencies ++= Seq(
 
 resolvers += "jitpack.io" at "https://jitpack.io"
 resolvers += "scalaz-bintray" at "http://dl.bintray.com/scalaz/releases"
+
+import com.typesafe.sbt.packager.Keys.scriptClasspath
+
+scriptClasspath := {
+  val originalClasspath = scriptClasspath.value
+  val manifest = new java.util.jar.Manifest()
+  manifest.getMainAttributes().putValue("Class-Path", originalClasspath.mkString(" "))
+  val classpathJar = (target in Universal).value / "lib" / "classpath.jar"
+  IO.jar(Seq.empty, classpathJar, manifest)
+  Seq(classpathJar.getName)
+}
+mappings in Universal += (((target in Universal).value / "lib" / "classpath.jar") -> "lib/classpath.jar")
+
+fork in run := true