INNER CODE UNIT · TypeScript

parseCliArgs

scribbletune/scribbletune · src/cli.ts:181

const parseCliArgs = (argv: string[]): ParsedOptions | null => {
  if (argv.length === 0 || argv.includes('-h') || argv.includes('--help')) {
    return null;
  }

  let commandArg = argv[0];
  if (commandArg.startsWith('--')) {
    commandArg = commandArg.slice(2);
  }
  if (commandArg !== 'riff' && commandArg !== 'chord' && commandArg !== 'arp') {
    throw new TypeError(
      `First argument must be riff/chord/arp (or --riff/--chord/--arp), received "${argv[0]}"`
    );
  }

  const positionals: string[] = [];
  const options: ParsedOptions = {
    command: commandArg,

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