append_clipboard.scala

import java.io.FileWriter



object AppendClipboard  extends App {
  import sys.process._
  val fw = new FileWriter("/tmp/clipboard.log")
  def getClipContent(): String = {
    val res = Process("pbpaste").lineStream.toList.mkString("\n")
    res
  }
  def writeToLog(s: String) = {
    fw.write(s)
    fw.flush()
  }
  var content0 = getClipContent()
  def watchClipboard(): Unit = {
    while(true) {
      Thread.sleep(100)
      val content1 = getClipContent()
      if(content1 != content0) {
        writeToLog(content1 + "\n")
        content0 = content1
      }
    }
  }
  try {
    watchClipboard()
  } finally {
    fw.close()
  }
}