Function _pushd

src/dirs.js:60–99

(options, dir)

//@
//@ Save the current directory on the top of the directory stack and then `cd` to `dir`. With no arguments, `pushd` exchanges the top two directories. Returns an array of paths in the stack.
function _pushd(options, dir) {
  if (_isStackIndex(options)) {
    dir = options;
    options = '';
  }

  options = common.parseOptions(options, {
    'n': 'no-cd',
    'q': 'quiet',
  });

  var dirs = _actualDirStack();

  if (dir === '+0') {
    return dirs; // +0 is a noop
  } else if (!dir) {
    if (dirs.length > 1) {
      dirs = dirs.splice(1, 1).concat(dirs);
    } else {
      return common.error('no other directory');
    }
  } else if (_isStackIndex(dir)) {
    var n = _parseStackIndex(dir);
    dirs = dirs.slice(n).concat(dirs.slice(0, n));
  } else if (options['no-cd']) {
    dirs.splice(1, 0, dir);
  } else {
    dirs.unshift(dir);
  }

  if (options['no-cd']) {
    dirs = dirs.slice(1);
  } else {
    dir = path.resolve(dirs.shift());
    _cd('', dir);
  }

  _dirStack = dirs;
  return _dirs(options.quiet ? '-q' : '');
}
exports.pushd = _pushd;

//@