Function attachArg

packages/qwik/src/cli/utils/run-build-command.ts:341–346

(command: string, key: string, value?: string)

}

function attachArg(command: string, key: string, value?: string): string {
  if (value !== undefined) {
    return `${command} --${key} ${value}`;
  }
  return command;
}

function isString(s: string | null | undefined): s is string {
  return typeof s === 'string' && s.trim().length > 0;