Function runCli

src/cli.ts:438–473

(argv: string[], deps?: CliDeps)

};

export const runCli = (argv: string[], deps?: CliDeps): number => {
  const stdout = deps?.stdout || console.log;
  const stderr = deps?.stderr || console.error;
  const writeMidi =
    deps?.writeMidi ||
    ((notes, fileName, bpm) => {
      midi(notes, fileName, bpm);
    });

  try {
    const parsed = parseCliArgs(argv);
    if (!parsed) {
      stdout(HELP_TEXT);
      return 0;
    }

    let notes: NoteObject[] = [];
    if (parsed.command === 'riff') {
      notes = makeRiff(parsed);
    } else if (parsed.command === 'chord') {
      notes = makeChord(parsed);
    } else {
      notes = makeArp(parsed);
    }

    writeMidi(notes, parsed.outfile, parsed.bpm);
    stdout(
      `Generated ${parsed.command} clip (${notes.length} events) -> ${parsed.outfile}`
    );
    return 0;
  } catch (e) {
    stderr(e instanceof Error ? e.message : String(e));
    stderr('Run with --help for usage');
    return 1;
  }
};

if (process.argv[1]?.includes('cli')) {
  process.exit(runCli(process.argv.slice(2)));