getImages function

Future<List<String>> getImages(Directory assetsDir, Directory projectRoot)

Scans assetsDir for image files and returns a list of image paths that are not referenced in any .dart, .yaml, .json, or .html files inside the lib/ folder of the projectRoot.

Implementation

Future<List<String>> getImages(
    Directory assetsDir, Directory projectRoot) async {
  final allImages = <String>[];
  final usedImages = <String>{};

  await for (final file in assetsDir.list(recursive: true)) {
    if (file is File && _isImage(file.path)) {
      // Use package:path to get the relative path from assetsDir
      final relativePath = p
          .relative(file.path, from: assetsDir.path)
          .replaceAll('\\', '/'); // Normalize separators to '/'
      allImages.add(relativePath);
    }
  }

  final libDir = Directory(p.join(projectRoot.path, 'lib'));

  if (!await libDir.exists()) {
    print('⚠️ Warning: lib folder does not exist: ${libDir.path}');
    return allImages;
  }

  final codeFiles = await _getAllCodeFiles(libDir);

  for (final file in codeFiles) {
    try {
      final content = await file.readAsString();
      for (final image in allImages) {
        if (content.contains(image)) {
          usedImages.add(image);
        }
      }
    } catch (e) {
      // Ignore unreadable files
    }
  }

  final unusedImages =
      allImages.where((img) => !usedImages.contains(img)).toList();
  return unusedImages;
}