import sbt._ import org.apache.commons.lang3.SystemUtils import org.apache.commons.lang3.StringUtils.replaceEach /** * A class that generates a shell or batch script to execute a Scala program. * * This is a simplified copy of Ant task (see scala.tools.ant.ScalaTool). */ case class ScalaTool(mainClass: String, classpath: List[String], properties: Map[String, String], javaOpts: String, toolFlags: String) { // For classpath, the platform specific // demarcation of any script variables (e.g. `${SCALA_HOME}` or // `%SCALA_HOME%`) can be specified in a platform independent way (e.g. // `@SCALA_HOME@`) and automatically translated for you. def patchedToolScript(template: String, forWindows: Boolean) = { val varRegex = """@(\w+)@""" // the group should be able to capture each of the keys of the map below val platformClasspath = if(forWindows) classpath.mkString(";").replace('/', '\\').replaceAll(varRegex, "%$1%") else if(SystemUtils.IS_OS_WINDOWS) { // When building on Windows, use a Windows classpath in the shell script (for MSYS/Cygwin). // This is only used for "quick", which uses absolute paths, so it is not portable anyway. classpath.mkString(";").replace("\\", "\\\\").replaceAll(varRegex, """\${$1}""") } else classpath.mkString(":").replace('\\', '/').replaceAll(varRegex, """\${$1}""") val variables = Map( "@@" -> "@", // for backwards compatibility "@class@" -> mainClass, "@properties@" -> (properties map { case (k, v) => s"""-D$k="$v""""} mkString " "), "@javaflags@" -> javaOpts, "@toolflags@" -> toolFlags, "@classpath@" -> platformClasspath ) val (from, to) = variables.unzip replaceEach(template, from.toArray, to.toArray) } def writeScript(file: String, platform: String, rootDir: File, outDir: File): File = { val forWindows = platform match { case "windows" => true case _ => false } val templatePath = s"scala/tools/ant/templates/tool-$platform.tmpl" val suffix = if(forWindows) ".bat" else "" val scriptFile = outDir / s"$file$suffix" val patched = patchedToolScript(IO.read(rootDir / templatePath).replace("\r", ""), forWindows) IO.write(scriptFile, if(forWindows) patched.replace("\n", "\r\n") else patched) scriptFile } }