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>{};

  // Folders to exclude (top-level or nested)
  final excludeDirs = {
    'build',
    'android',
    'ios',
    'web',
    'macos',
    'linux',
    'windows',
  };

  await for (final file in assetsDir.list(recursive: true)) {
    if (file is File && _isImage(file.path)) {
      // Skip if path contains any excluded folder name
      final parts = file.path.split(Platform.pathSeparator);
      if (parts.any((p) => excludeDirs.contains(p))) {
        continue;
      }

      // 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);
    }
  }

  Directory updatedDataDirectory = Directory(projectRoot.path);
  if (projectRoot.path.contains("/")) {
    updatedDataDirectory = Directory(
        projectRoot.path.replaceAll("/assets", "").replaceAll("/images", ''));
  }
  final libDir = Directory(p.join(updatedDataDirectory.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;
}