execute method

@override void execute(List<String> arguments)

Implementation

@override
void execute(List<String> arguments) {
  if (arguments.isEmpty) {
    print('  What should the migration be named?');
    stdout.write('\x1B[1m > \x1B[0m');
    arguments.add(stdin.readLineSync()!);
  }

  RegExp alphaRegex = RegExp(r'^[a-zA-Z][a-zA-Z0-9_/\\]*$');

  if (!alphaRegex.hasMatch(arguments[0])) {
    print(
        ' \x1B[41m\x1B[37m ERROR \x1B[0m Migration must contain only letters a-z, numbers 0-9 and optional _');
    exit(0);
  }

  String migrationName = arguments[0];

  String filePath =
      '${Directory.current.path}/lib/database/migrations/${pascalToSnake(migrationName)}.dart';
  File newFile = File(filePath);

  if (newFile.existsSync()) {
    print(' \x1B[41m\x1B[37m ERROR \x1B[0m Migration already exists.');
    exit(0);
  }

  newFile.createSync(recursive: true);

  String tableName =
      migrationName.replaceAll('create_', '').replaceAll('_table', '');
  String str = migrationStub
      .replaceFirst('MigrationName', snakeToPascal(migrationName))
      .replaceFirst('TableName', tableName);

  newFile.writeAsString(str);

  File migrate =
      File('${Directory.current.path}/lib/database/migrations/migrate.dart');

  if (!migrate.existsSync()) {
    migrate.createSync(recursive: true);
  } else {
    migrateFileContents = migrate.readAsStringSync();
  }

  final importRegExp = RegExp(r'import .+;');
  var importMatch = importRegExp.allMatches(migrateFileContents);

  migrateFileContents = migrateFileContents.replaceFirst(
      importMatch.last.group(0).toString(),
      "${importMatch.last.group(0).toString()}\nimport '$migrationName.dart';");

  final constructorRegex =
      RegExp(r'registry\s*\(\s*\)\s*async?\s*\{\s*([\s\S]*?)\s*\}');

  Match? repositoriesBlockMatch =
      constructorRegex.firstMatch(migrateFileContents);

  migrateFileContents = migrateFileContents.replaceAll(constructorRegex,
      '''registry() async{\n\t\t${repositoriesBlockMatch?.group(1)}\n\t\t await ${migrationName.pascalCase}().up();\n\t}''');
  migrate.writeAsStringSync(migrateFileContents);

  print(
      ' \x1B[44m\x1B[37m INFO \x1B[0m Migration [$filePath] created successfully.');
}