mason_logger 0.2.15

A reusable Dart logger used by the Mason CLI (package:mason_cli).

example/main.dart

import 'package:mason_logger/mason_logger.dart';

enum Shape { square, circle, triangle }

Future<void> main() async {
  String? customInfoStyle(String? m) {
    return backgroundDarkGray.wrap(styleBold.wrap(white.wrap(m)));
  }

  final logger = Logger(level: Level.verbose)
    ..info('info')
    ..alert('alert')
    ..err('error')
    ..success('success')
    ..warn('warning')
    ..detail('detail')
    ..info('custom info', style: customInfoStyle);

  final favoriteColor = logger.chooseOne(
    'Pick a color.',
    choices: ['red', 'green', 'blue'],
    defaultValue: 'blue',
  );

  logger.info('Got it, $favoriteColor it is!');

  final desserts = logger.chooseAny(
    'Which desserts do you like?',
    choices: ['🍦', '🍪', '🍩'],
  );

  logger.info('Awesome, $desserts it is!');

  final shape = logger.chooseOne<Shape>(
    'What is your favorite shape?',
    choices: Shape.values,
    display: (shape) => shape.name,
  );
  logger.info('You chose the following shape: $shape!');

  final shapes = logger.chooseAny<Shape>(
    'Or did you want to choose multiple?',
    choices: Shape.values,
    defaultValues: [shape],
    display: (shape) => shape.name,
  );
  logger.info('You chose the following shapes: $shapes!');

  final favoriteProgrammingLanguages = logger.promptAny(
    'What are your favorite programming languages?',
  );

  logger.info(
    'You chose the following languages: $favoriteProgrammingLanguages',
  );

  final favoriteAnimal = logger.prompt(
    'What is your favorite animal?',
    defaultValue: '🐈',
  );
  final likesCats = logger.confirm('Do you like cats?', defaultValue: true);
  final progress = logger.progress('Calculating');
  await Future<void>.delayed(const Duration(milliseconds: 500));
  progress.update('Halfway!');
  await Future<void>.delayed(const Duration(milliseconds: 500));
  progress.complete('Done!');
  logger
    ..info('Your favorite animal is a $favoriteAnimal!')
    ..alert(likesCats ? 'You are a cat person!' : 'You are not a cat person.');

  final failing = logger.progress('Trying to fail now!');
  await Future<void>.delayed(const Duration(seconds: 1));
  failing.fail('See I failed!');

  final canceling = logger.progress('Trying to cancel now!');
  await Future<void>.delayed(const Duration(seconds: 1));
  canceling.cancel();

  final repoLink = link(
    message: 'GitHub Repository',
    uri: Uri.parse('https://github.com/felangel/mason'),
  );
  logger.info('To learn more, visit the $repoLink.');
}