backupFiles method

Map<String, String> backupFiles(List<String> filePaths, { String backupSuffix = '.backup', })

Backs up existing files before overwriting them.

Creates backup copies of files that will be overwritten during generation, allowing for recovery if needed.

Parameters:

• filePaths: List of file paths to backup
• backupSuffix: Suffix to append to backup files (default: '.backup')

Returns a map of original paths to backup paths.

Implementation

Map<String, String> backupFiles(
  List<String> filePaths, {
  String backupSuffix = '.backup',
}) {
  final backupMap = <String, String>{};

  for (final filePath in filePaths) {
    if (exists(filePath)) {
      final backupPath = '$filePath$backupSuffix';
      try {
        copy(filePath, backupPath);
        backupMap[filePath] = backupPath;
      } catch (e) {
        print('Warning: Failed to backup $filePath: $e');
      }
    }
  }

  return backupMap;
}