import java.util.zip.*
import java.text.*
 
def toBase2(String sText){
  boolean bChar = true
  int iSize = sText.length()
  int i = 0
  String sAux = "" 
 
  for (i=0; i < iSize; i++) {
    String sLetter = sText.charAt(i) 
    sLetter = Normalizer.normalize(sLetter, Normalizer.Form.NFD)
    try{
      byte[] bLetter = (new String(sLetter)).getBytes("UTF-8")
      char cLetter = (char) bLetter[0]
      sAux += "" + cLetter
    }
    catch(Exception e){
    }
  }
  return sAux
}
 
new File(args[0]).eachFileRecurse() { f ->
  if (f ==~ /.*zip$/ || !f.isFile()) return
  name = f.toString()
  zipname = name.substring(0, name.lastIndexOf(".")) + ".zip"
  out = new ZipOutputStream(new FileOutputStream(zipname))
  nameInZip = toBase2(name.substring(name.lastIndexOf("\\") + 1))
  println nameInZip
  out.putNextEntry(new ZipEntry(nameInZip))
  
  // nejde napsat out.write(f.readbytes()), protoze na 100mb 
  // souboru to zahlasi out of memory
  ins = f.newInputStream()
  buffer = new byte[18024]
  while ((len = ins.read(buffer)) > 0) 
    out.write(buffer, 0, len)
  
  out.closeEntry()
  out.close()
}

Removes diacritics from file name before adding it to the archive. Archive file name retains diacritics.

Compresses all the files in some directory recursively (zip); solves diacritics problems

file

Groovy