将Rails源码加入工程可以使用freeze命令: 进入工程目录使用rake rails:freeze:gems,可将源码解压到工程目录的vendor/rails目录下使用rake rails:unfreeze,可将解压的源码删除freeze相关的task包括$ rake -T freeze rake rails:freeze:edge # Lock to latest Edge Rails, for a specific release use RELEASE=1.2.0 rake rails:freeze:gems # Lock this application to the current gems (by unpacking them into vendor/rails) rake rails:unfreeze # Unlock this application from freeze of gems or edge and return to a fluid use of system gems