addFont method

void addFont(String pubspecPath, String fontFamily, List<String> fontPaths)

Adds a font configuration under the flutter: fonts: section.

Implementation

void addFont(String pubspecPath, String fontFamily, List<String> fontPaths) {
  final file = File(pubspecPath);
  if (!file.existsSync()) {
    throw CliException('pubspec.yaml not found at $pubspecPath');
  }

  final lines = file.readAsLinesSync();

  int flutterIndex = -1;
  for (int i = 0; i < lines.length; i++) {
    if (lines[i].trim() == 'flutter:' && !lines[i].startsWith(' ')) {
      flutterIndex = i;
      break;
    }
  }

  if (flutterIndex == -1) {
    lines.add('');
    lines.add('flutter:');
    lines.add('  fonts:');
    lines.add('    - family: $fontFamily');
    lines.add('      fonts:');
    for (final path in fontPaths) {
      lines.add('        - asset: $path');
    }
    file.writeAsStringSync(lines.join('\n'));
    return;
  }

  int fontsIndex = -1;
  for (int i = flutterIndex + 1; i < lines.length; i++) {
    final line = lines[i];
    if (line.isNotEmpty && !line.startsWith(' ') && !line.startsWith('#')) {
      break; // Out of flutter section
    }
    if (line.trim() == 'fonts:') {
      fontsIndex = i;
      break;
    }
  }

  final fontConfig = <String>[];
  fontConfig.add('    - family: $fontFamily');
  fontConfig.add('      fonts:');
  for (final path in fontPaths) {
    fontConfig.add('        - asset: $path');
  }

  if (fontsIndex == -1) {
    // Insert '  fonts:' and configuration
    lines.insertAll(flutterIndex + 1, ['  fonts:', ...fontConfig]);
  } else {
    // Insert configuration under '  fonts:'
    lines.insertAll(fontsIndex + 1, fontConfig);
  }

  file.writeAsStringSync(lines.join('\n'));
}