tools/engine_tool/lib/src/commands/command.dart

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:args/args.dart';
import 'package:args/command_runner.dart';

import '../environment.dart';

/// The base class that all commands and subcommands should inherit from.
abstract base class CommandBase extends Command<int> {
  /// Constructs the base command.
  CommandBase({
    required this.environment,
    this.help = false,
    int? usageLineLength,
  }) : argParser = ArgParser(usageLineLength: usageLineLength);

  /// The host system environment.
  final Environment environment;

  /// Whether the Command is being constructed only to print the usage/help
  /// message.
  final bool help;

  @override
  final ArgParser argParser;

  @override
  void printUsage() {
    environment.logger.status(usage);
  }
}