void interpretContentFile(String projectName, Directory destinationDirectory, FileSystemEntity sourceFileEntity)

Source

void interpretContentFile(String projectName, Directory destinationDirectory,
    FileSystemEntity sourceFileEntity) {
  if (shouldIncludeItem(sourceFileEntity)) {
    if (sourceFileEntity is Directory) {
      copyDirectory(projectName, destinationDirectory, sourceFileEntity);
    } else {
      copyFile(projectName, destinationDirectory, sourceFileEntity);
    }
  }
}