Method copyDir

app/src/processing/app/Util.java:316–345

Copy a folder from one place to another. This ignores all dot files and folders found in the source directory, to avoid copying silly .DS_Store files and potentially troublesome .svn folders.

(File sourceDir,
                             File targetDir)

   * files and potentially troublesome .svn folders.
   */
  static public void copyDir(File sourceDir,
                             File targetDir) throws IOException {
    if (sourceDir.equals(targetDir)) {
      final String urDum = "source and target directories are identical";
      throw new IllegalArgumentException(urDum);
    }
    if (!targetDir.exists() && !targetDir.mkdirs()) {
      throw new IOException("Could not create " + targetDir);
    }
    String[] filenames = sourceDir.list();
    if (filenames != null) {
      for (String filename : filenames) {
        // Ignore dot files (.DS_Store), dot folders (.svn) while copying
        if (filename.charAt(0) != '.') {
          File source = new File(sourceDir, filename);
          File target = new File(targetDir, filename);
          if (source.isDirectory()) {
            //target.mkdirs();
            copyDir(source, target);
            //noinspection ResultOfMethodCallIgnored
            target.setLastModified(source.lastModified());
          } else {
            copyFile(source, target);
          }
        }
      }
    } else {
      throw new IOException("Could not read " + sourceDir);
    }
  }


  static public void copyDirNative(File sourceDir,