Function move

packages/angular_devkit/schematics/src/rules/move.ts:15–41

(from: string, to?: string)

export function move(from: string, to: string): Rule;
export function move(to: string): Rule;
export function move(from: string, to?: string): Rule {
  if (to === undefined) {
    to = from;
    from = '/';
  }

  const fromPath = normalize('/' + from);
  const toPath = normalize('/' + to);

  if (fromPath === toPath) {
    return noop;
  }

  return (tree) => {
    if (tree.exists(fromPath)) {
      // fromPath is a file
      tree.rename(fromPath, toPath);
    } else {
      // fromPath is a directory
      tree.getDir(fromPath).visit((path) => {
        tree.rename(path, join(toPath, path.slice(fromPath.length)));
      });
    }

    return tree;
  };
}