發(fā)現(xiàn)bundle還有這樣一個(gè)功能：
Bundler also allows you to work against a git repository locally instead of using the remote version. This can be achieved by setting up a local override:
bundle config local.GEM_NAME /path/to/local/git/repository
不需要的時(shí)候再：
bundle config --delete local.websocket-rails
