Function normalizeSpawnArguments

lib/child_process.js:568–753

(file, args, options)

let emittedDEP0190Already = false;
function normalizeSpawnArguments(file, args, options) {
  validateString(file, 'file');
  validateArgumentNullCheck(file, 'file');

  if (file.length === 0)
    throw new ERR_INVALID_ARG_VALUE('file', file, 'cannot be empty');

  if (ArrayIsArray(args)) {
    args = ArrayPrototypeSlice(args);
  } else if (args == null) {
    args = [];
  } else if (typeof args !== 'object') {
    throw new ERR_INVALID_ARG_TYPE('args', 'object', args);
  } else {
    options = args;
    args = [];
  }

  validateArgumentsNullCheck(args, 'args');

  if (options === undefined)
    options = kEmptyObject;
  else
    validateObject(options, 'options');

  options = { __proto__: null, ...options };
  let cwd = options.cwd;

  // Validate the cwd, if present.
  if (cwd != null) {
    cwd = getValidatedPath(cwd, 'options.cwd');
  }

  // Validate detached, if present.
  if (options.detached != null) {
    validateBoolean(options.detached, 'options.detached');
  }

  // Validate the uid, if present.
  if (options.uid != null) {
    validateInt32(options.uid, 'options.uid');
  }

  // Validate the gid, if present.
  if (options.gid != null) {
    validateInt32(options.gid, 'options.gid');
  }

  // Validate the shell, if present.
  if (options.shell != null &&
      typeof options.shell !== 'boolean' &&
      typeof options.shell !== 'string') {
    throw new ERR_INVALID_ARG_TYPE('options.shell',
                                   ['boolean', 'string'], options.shell);
  }

  // Validate argv0, if present.
  if (options.argv0 != null) {