addDependencies function

Future<void> addDependencies(String projectPath)

Adds required dependencies to the pubspec.yaml file of a Flutter project.

This function checks if the pubspec.yaml file exists in the specified project directory, parses the YAML content, and adds the required dependencies to the dependencies section if they are not already present. If the dependencies section does not exist, it is created.

Implementation

Future<void> addDependencies(String projectPath) async {
  // Define the path to the pubspec.yaml file
  final pubspecPath = '$projectPath/pubspec.yaml';
  final pubspecFile = File(pubspecPath);

  // Check if the pubspec.yaml file exists in the provided project directory
  if (!pubspecFile.existsSync()) {
    print('pubspec.yaml not found in the project directory.');
    return;
  }

  try {
    // Read the content of the pubspec.yaml file
    final content = pubspecFile.readAsStringSync();
    final editor = YamlEditor(content);

    // Define the required dependencies to be added
    final requiredDependencies = {
      'flutter_bloc': '^8.1.0',
      'get_it': '^7.2.0',
    };

    // Parse the existing YAML content
    final yamlMap = loadYaml(content) as Map;

    // Add each required dependency if it is not already in the dependencies section
    if (yamlMap['dependencies'] is Map) {
      requiredDependencies.forEach((key, version) {
        if (!(yamlMap['dependencies'] as Map).containsKey(key)) {
          // Update the editor with the new dependency
          editor.update(['dependencies', key], version);
        }
      });
    } else {
      // If no 'dependencies' section exists, create one and add the dependencies
      editor.update(['dependencies'], requiredDependencies);
    }

    // Write the updated content back to the pubspec.yaml file
    pubspecFile.writeAsString(editor.toString());
    print('Dependencies added successfully!');
  } catch (e) {
    print('Error while updating pubspec.yaml: $e');
  }
}