function backup_migrate_cron in Backup and Migrate 6

Same name and namespace in other branches

1. 8.4 backup_migrate.module \backup_migrate_cron()
2. 8.2 backup_migrate.module \backup_migrate_cron()
3. 8.3 backup_migrate.module \backup_migrate_cron()
4. 5.2 backup_migrate.module \backup_migrate_cron()
5. 5 backup_migrate.module \backup_migrate_cron()
6. 6.3 backup_migrate.module \backup_migrate_cron()
7. 6.2 backup_migrate.module \backup_migrate_cron()
8. 7.3 backup_migrate.module \backup_migrate_cron()
9. 7.2 backup_migrate.module \backup_migrate_cron()
10. 5.0.x backup_migrate.module \backup_migrate_cron()

Implementation of hook_cron(),

Takes care of scheduled backups.

File

./backup_migrate.module, line 95

Create (manually or scheduled) and restore backups of your Drupal MySQL database with an option to exclude table data (f.e. cache_*)

Code

function backup_migrate_cron() {

  // Backing up requires a full bootstrap as it uses the file functionality in
  // files.inc. Running poormanscron with caching on can cause cron to run without
  // a full bootstrap so we manually finish bootstrapping here.
  require_once './includes/common.inc';
  _drupal_bootstrap_full();
  if ($backup_schedule_period = variable_get("backup_migrate_schedule_backup_period", 0)) {
    $last_backup = variable_get("backup_migrate_schedule_last_backup", 0);
    $now = time();
    if ($last_backup < $now - $backup_schedule_period * 60 * 60) {

      // time to run the backup
      _backup_migrate_dump_tables(variable_get("backup_migrate_file_name", _backup_migrate_default_file_name()), variable_get("backup_migrate_exclude_tables", _backup_migrate_default_exclude_tables()), variable_get("backup_migrate_nodata_tables", _backup_migrate_default_structure_only_tables()), 'sql', "save", variable_get("backup_migrate_compression", "none"), "scheduled", variable_get("backup_migrate_timestamp_format", 'Y-m-d\\TH-i-s'));

      // Set the timestamp to indecate last backup time.
      variable_set("backup_migrate_schedule_last_backup", $now);

      // Delete older backups if needed.
      _backup_migrate_remove_expired_backups();
    }
  }

  // Delete temp files abandoned for 6 or more hours.
  $dir = file_directory_temp();
  $expire = time() - variable_get('backup_migrate_cleanup_time', 21600);
  if (file_exists($dir) && is_dir($dir) && is_readable($dir) && ($handle = opendir($dir))) {
    while (FALSE !== ($file = @readdir($handle))) {

      // Delete 'backup_migrate_' files in the temp directory that are older than the expire time.
      // We should only attempt to delete writable files to prevent errors in shared environments.
      // This could still cause issues in shared environments with poorly configured file permissions.
      if (strpos($file, 'backup_migrate_') === 0 && is_writable("{$dir}/{$file}") && @filectime("{$dir}/{$file}") < $expire) {
        unlink("{$dir}/{$file}");
      }
    }
    closedir($handle);
  }
}