function parseProgramArguments()

in integ/scripts/node/stack-order.ts [119:152]

• 25 lines of code
• 6 McCabe index (conditional complexity)

function parseProgramArguments(): ProgramArguments {
  let orderType: OrderType = OrderType.DEPLOY;
  let manifestPath: string = DEFAULT_MANIFEST_PATH;
  let reverseFlag: string | undefined;

  // Strip the first two arguments (node interpreter and the path to this script)
  const args = process.argv.slice(2);

  if (args.length === 2) {
    // Two arguments passed. Ensure the first is the "-r" flag
    [ reverseFlag, manifestPath ] = args;

    // Validate first arg is the -r flag
    if (reverseFlag !== '-r') {
      throw new Error(`Unexpected argument: "${reverseFlag}"`);
    }

    orderType = OrderType.DESTROY;
  } else if (args.length === 1) {
    if (args[0] === '-r') {
      orderType = OrderType.DESTROY;
    } else {
      // A single argument is passed containing the manifest path
      manifestPath = process.argv[2];
    }
  } else if (args.length > 2) {
    throw new Error(`Unexpected number of arguments (${args.length})`);
  }

  return {
    manifestPath,
    orderType,
  };
}