Create Backup of a Document

Creates a backup of a document as it is added to a space:

// find the backup folder - create if not already exists
var backupFolder = space.childByNamePath('Backup');
if (backupFolder == null && space.hasPermission('CreateChildren'))
{
   // create the folder for the first time
   backupFolder = space.createFolder('Backup');
}
if (backupFolder != null && backupFolder.hasPermission('CreateChildren'))
{
   // copy the doc into the backup folder
   var copy = document.copy(backupFolder);
   if (copy != null)
   {
      // change the name so we know it's a backup
      copy.name = 'Backup of ' + copy.name;
      copy.save();
   }
}