Scala example source code file (CompileClient.scala)

This example Scala source code file (CompileClient.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

array, compileoutputcommon, compilesocket, console, d, fast, given, list, no, standardcompileclient, utilities, vm

The CompileClient.scala Scala example source code

/* NSC -- new Scala compiler
 * Copyright 2005-2013 LAMP/EPFL
 * @author  Martin Odersky
 */

package scala
package tools.nsc

import settings.FscSettings
import scala.tools.util.CompileOutputCommon
import scala.sys.SystemProperties.preferIPv4Stack

/** The client part of the fsc offline compiler.  Instead of compiling
 *  things itself, it send requests to a CompileServer.
 */
class StandardCompileClient extends HasCompileSocket with CompileOutputCommon {
  lazy val compileSocket: CompileSocket = CompileSocket

  val versionMsg = "Fast " + Properties.versionMsg
  var verbose    = false

  def process(args: Array[String]): Boolean = {
    // Trying to get out in front of the log messages in case we're
    // going from verbose to not verbose.
    verbose = (args contains "-verbose")

    val settings     = new FscSettings(Console.println)
    val command      = new OfflineCompilerCommand(args.toList, settings)
    val shutdown     = settings.shutdown.value
    val extraVmArgs  = if (settings.preferIPv4) List("-D%s=true".format(preferIPv4Stack.key)) else Nil

    val vmArgs  = settings.jvmargs.unparse ++ settings.defines.unparse ++ extraVmArgs
    val fscArgs = args.toList ++ command.extraFscArgs

    if (settings.version) {
      Console println versionMsg
      return true
    }

    info(versionMsg)
    info(args.mkString("[Given arguments: ", " ", "]"))
    info(fscArgs.mkString("[Transformed arguments: ", " ", "]"))
    info(vmArgs.mkString("[VM arguments: ", " ", "]"))

    val socket =
      if (settings.server.value == "") compileSocket.getOrCreateSocket(vmArgs mkString " ", !shutdown)
      else Some(compileSocket.getSocket(settings.server.value))

    socket match {
      case Some(sock) => compileOnServer(sock, fscArgs)
      case _          =>
        echo(
          if (shutdown) "[No compilation server running.]"
          else "Compilation failed."
        )
        shutdown
    }
  }
}

object CompileClient extends StandardCompileClient {
  def main(args: Array[String]): Unit = sys exit {
    try   { if (process(args)) 0 else 1 }
    catch { case _: Exception => 1 }
  }
}