run method

@override String run(ParsedInputs inputs, List<String> args)

Implementation

@override
String run(ParsedInputs inputs, List<String> args) {
  final name = inputs.valueOf(commandName);
  final targetPath = inputs.valueOf(fileName);
  final isGroup = inputs.valueOf(group);
  final shouldAppend = inputs.valueOf(append);

  if (targetPath != null && !shouldAppend) {
    throw MambaException('The file argument requires --append.');
  }
  if (targetPath == null && shouldAppend) {
    throw MambaException('--append requires a file argument.');
  }

  final file = targetPath == null
      ? File('${_parentDirectory.path}/lib/$name.dart')
      : File(targetPath);

  if (shouldAppend && !file.existsSync()) {
    throw MambaException('Cannot append $name: ${file.path} does not exist.');
  }
  if (!shouldAppend && file.existsSync()) {
    throw MambaException('Cannot create $name: the file already exists.');
  }

  final className = '${name[0].toUpperCase()}${name.substring(1)}Command';

  final implementation = isGroup
      ? "final class $className extends GroupCommand {\n  new() : super([]);\n  @override String get name => '$name';\n  @override String get shortDescription => 'Describe $name.';\n}\n"
      : "final class $className extends Command {\n  @override String get name => '$name';\n  @override String get shortDescription => 'Describe $name.';\n  @override String run(ParsedInputs inputs, List<String> args) => 'Completed $name.';\n}\n";

  if (shouldAppend) {
    file.writeAsStringSync('\n$implementation', mode: FileMode.append);
  } else {
    file.parent.createSync(recursive: true);
    file.writeAsStringSync(
      "import 'package:mamba/mamba.dart';\n\n$implementation",
    );
  }

  return shouldAppend
      ? 'Appended command to ${file.path}.'
      : 'Created command in ${file.path}.';
}