void generate()

in tool/doc.dart [357:431]

• 64 lines of code
• 10 McCabe index (conditional complexity)

  void generate({String? filePath}) {
    var buffer = StringBuffer();

    buffer.writeln('# Linter for Dart');
    buffer.writeln();
    buffer.writeln('## Lint Rules');
    buffer.writeln();
    buffer.writeln(
        '[Using the Linter](https://dart.dev/guides/language/analysis-options#enabling-linter-rules)');
    buffer.writeln();
    buffer.writeln('## Supported Lint Rules');
    buffer.writeln();
    buffer.writeln('This list is auto-generated from our sources.');
    buffer.writeln();
    buffer.writeln(ruleLeadMatter);
    buffer.writeln();

    for (var group in Group.builtin) {
      buffer.writeln('- **${group.name}** - ${group.description}');
      buffer.writeln();
    }

    buffer.writeln(ruleFootMatter);
    buffer.writeln();

    void emit(LintRule rule) {
      buffer
          .writeln('**[${rule.name}](${rule.name}.md)** - ${rule.description}');
      if (coreRules.contains(rule.name)) {
        buffer.writeln('[![core](style-core.svg)]'
            '(https://github.com/dart-lang/lints/blob/main/lib/core.yaml)');
      }
      if (recommendedRules.contains(rule.name)) {
        buffer.writeln('[![recommended](style-recommended.svg)]'
            '(https://github.com/dart-lang/lints/blob/main/lib/recommended.yaml)');
      }
      if (flutterRules.contains(rule.name)) {
        buffer.writeln('[![flutter](style-flutter.svg)]'
            '(https://github.com/flutter/packages/blob/master/packages/'
            'flutter_lints/lib/flutter.yaml)');
      }
      if (pedanticRules.contains(rule.name)) {
        buffer.writeln('[![pedantic](style-pedantic.svg)]'
            '(https://github.com/dart-lang/pedantic/#enabled-lints)');
      }
      buffer.writeln();
    }

    buffer.writeln('## Error Rules');
    buffer.writeln();
    // ignore: prefer_foreach
    for (var rule in rules.where((rule) => rule.group == Group.errors)) {
      emit(rule);
    }

    buffer.writeln('## Style Rules');
    buffer.writeln();
    // ignore: prefer_foreach
    for (var rule in rules.where((rule) => rule.group == Group.style)) {
      emit(rule);
    }

    buffer.writeln('## Pub Rules');
    buffer.writeln();
    // ignore: prefer_foreach
    for (var rule in rules.where((rule) => rule.group == Group.pub)) {
      emit(rule);
    }

    if (filePath == null) {
      print(buffer.toString());
    } else {
      File('$filePath/index.md').writeAsStringSync(buffer.toString());
    }
  }