Function parseEnumFlag

packages/cli/src/cloud/parsing.ts:83–92

(
  raw: string | undefined,
  allowed: readonly T[],
  opts: { flag: string },
)

/** Parse an enum-typed flag against a closed set of allowed values. */
export function parseEnumFlag<T extends string>(
  raw: string | undefined,
  allowed: readonly T[],
  opts: { flag: string },
): T | undefined {
  if (raw === undefined) return undefined;
  if ((allowed as readonly string[]).includes(raw)) return raw as T;
  errorBox(`Invalid ${opts.flag}`, `Got "${raw}". Must be one of: ${allowed.join(", ")}.`);
  process.exit(1);
}

function rangeSuffix(opts: { min?: number; max?: number }): string {
  if (opts.min !== undefined && opts.max !== undefined) return ` (${opts.min}-${opts.max})`;