INNER CODE UNIT · TypeScript

parseFlags

rit3zh/reacticx · cloudflare/codebase/index.ts:68

function parseFlags(argv: readonly string[]): Flags {
  const has = (...names: string[]) => names.some((name) => argv.includes(name));

  const onlyIndex = argv.findIndex((arg) => arg === "--only" || arg.startsWith("--only="));
  let only: SourceId[] = [];

  if (onlyIndex !== -1) {
    const raw = argv[onlyIndex]!.includes("=")
      ? argv[onlyIndex]!.split("=")[1]
      : argv[onlyIndex + 1];

    const requested = (raw ?? "").split(",").map((part) => part.trim()).filter(Boolean);
    const unknown = requested.filter((id) => !sourceIds.includes(id as SourceId));

    if (requested.length === 0) throw new Error(`--only needs a value: ${sourceIds.join(", ")}`);
    if (unknown.length > 0) {
      throw new Error(`unknown source ${unknown.join(", ")} — expected ${sourceIds.join(", ")}`);
    }

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