readOverrides function

Map<String, String> readOverrides({ String? rootPath, })

Read the override file into a key → fingerprint map (last entry wins per key). Returns an empty map when no overrides were recorded. rootPath defaults to the reporter's cwd.

Implementation

Map<String, String> readOverrides({String? rootPath}) {
  final file = _overridesFileFor(rootPath ?? Directory.current.path);
  if (!file.existsSync()) return {};

  final overrides = <String, String>{};
  for (final line in file.readAsLinesSync()) {
    if (line.trim().isEmpty) continue;
    try {
      final entry = jsonDecode(line) as Map<String, dynamic>;
      final fingerprint = entry['fingerprint'] as String?;
      if (fingerprint == null) continue;
      final key = fingerprintKey(
        ruleId: entry['ruleId'] as String? ?? '',
        filePath: entry['filePath'] as String? ?? '',
        line: entry['line'] as int? ?? 0,
        column: entry['column'] as int? ?? 0,
      );
      overrides[key] = fingerprint;
    } catch (_) {
      // Skip malformed lines rather than failing the whole report.
    }
  }
  return overrides;
}