1. <?php
  3. /**
  4. * Backs up queue files for manual execution with limited memory.
  5. *
  6. * @param string $queue_dir The directory containing the queue files.
  7. * @param string $backup_dir The directory to store the backups.
  8. * @param int $max_filesize Maximum size of each backup file in bytes (to limit memory).
  9. */
  10. function backupQueues(string $queue_dir, string $backup_dir, int $max_filesize): void
  11. {
  12. if (!is_dir($queue_dir)) {
  13. error_log("Error: Queue directory '$queue_dir' does not exist.");
  14. return;
  15. }
  17. if (!is_dir($backup_dir)) {
  18. mkdir($backup_dir, 0777, true); // Create backup directory if it doesn't exist
  19. if (!is_dir($backup_dir)) {
  20. error_log("Error: Could not create backup directory '$backup_dir'.");
  21. return;
  22. }
  23. }
  26. $files = scandir($queue_dir);
  28. if ($files === false) {
  29. error_log("Error: Could not scan queue directory '$queue_dir'.");
  30. return;
  31. }
  34. foreach ($files as $file) {
  35. if ($file == '.' || $file == '..') {
  36. continue;
  37. }
  39. $filepath = $queue_dir . '/' . $file;
  41. if (is_file($filepath)) {
  42. $filename = basename($file); // Get filename without path
  44. $backup_filepath = $backup_dir . '/' . $filename . '_' . time() . '.bak';
  46. $handle = fopen($backup_filepath, 'wb');
  47. if ($handle === false) {
  48. error_log("Error: Could not open backup file '$backup_filepath' for writing.");
  49. continue; // Skip to the next file
  50. }
  53. $file_size = filesize($filepath);
  54. if ($file_size > $max_filesize) {
  55. error_log("Warning: File '$filepath' is larger than the maximum allowed size ($max_filesize bytes). Skipping.");
  56. fclose($handle);
  57. continue;
  58. }
  60. readfile($filepath, $handle); // Copy file contents to backup
  61. fclose($handle);
  63. echo "Backed up: $filepath to $backup_filepath\n";
  64. }
  65. }
  66. }
  68. // Example usage:
  69. // backupQueues('/path/to/your/queues', '/path/to/your/backups', 1024 * 1024); // 1MB limit
  70. ?>

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