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A Groovy sample

Sometimes, I use MS visual studio to write programs. MS VS automatically generates additional files and directories which are not necessary when I release my code. For example, debug directory and .ncb file. When I finish my program, I want to delete these unnecessary files/directories. To delete them manually is not a good choice considering number of programs I have. So I decide to write a Groovy script to do this task and following is my code.

/**
 * This Groovy script is used to delete directories named 'debug'.
 * Usually, this directory is generated by MS Visual Studio when
 * you compile your code in debug mode. After you release your 
 * code, debug information can be discarded. Or else, it occupies
 * non-trivial amount of hard disk space.
 * Moreover, MS VS generates .ncb files. 
 * Besides debug directory and .ncb file, you can easily change 
 * the pattern of files/directories you want to delete.
 */
 
def baseDir = 'E:\\my_program'
dirPattern = /[d|D][e|E][b|B][u|U][g|G]/
fileNamePattern = /.*\.ncb$/

/** This closure delete a specified directory or file 
 * Note: here File means a regular file or a directory.
 */
deleteFile= {
 currentObj ->
 if( currentObj.isDirectory() ){
  currentDir.eachFile{
   currentFile ->
   if( currentFile.isFile() ){
    //first file
    if( currentFile.delete() == false )
     println "file " + currentFile + " failed to be deleted"
   }else if( currentFile.isDirectory() ){
    //then recursively delete dirs
    deleteDir( currentFile )
   }
  }
 }
 //delete this dir
 if( currentObj.delete() == false )
  println "dir " + currentDir + " failed to be deleted"
}

/** delele directories corresponding to pattern specified by variable
 *  dirPattern.
 */
deleteDirs ={
 _baseDir ->
 _baseDir.eachDir{
  currentDir ->
  def dirName = currentDir.getName()
  if( dirName ==~ dirPattern){
   //find it, just delete it
   deleteFile(currentDir)
  }else//recursivly look for it
   deleteDirs(currentDir)
 }
}

/** delele files corresponding to pattern specified by variable
 *  fileNamePattern.
 */
deleteFiles ={
 _baseDir ->
 _baseDir.eachFile{
  currentFile ->
  if( currentFile.isFile() ){
   def fileName = currentFile.getName()
   println fileName
   if( fileName ==~ fileNamePattern ){
    //find it, just delete it
    deleteFile(currentFile)
   }
  }else//recursivly look for it
   deleteFiles(currentFile)
 }
}

/** Sample usage */
deleteDirs(new File(baseDir))
deleteFiles(new File(baseDir));