# phpman > man > bundle-pristine(1)

[BUNDLE-PRISTINE(1)](https://www.chedong.com/phpMan.php/man/BUNDLE-PRISTINE/1/markdown)                                                                [BUNDLE-PRISTINE(1)](https://www.chedong.com/phpMan.php/man/BUNDLE-PRISTINE/1/markdown)



## NAME
       **bundle-pristine** - Restores installed gems to their pristine condition

## SYNOPSIS
### bundle pristine

## DESCRIPTION
       **pristine**  restores the installed gems in the bundle to their pristine condition using the lo‐
       cal gem cache from RubyGems. For git gems, a forced checkout will be performed.

       For further explanation, **bundle** **pristine** ignores unpacked files on disk. In other words, this
       command  utilizes  the local **.gem** cache or the gem´s git repository as if one were installing
       from scratch.

       Note: the Bundler gem cannot be restored to its original state with **pristine**. One also cannot
       use **bundle** **pristine** on gems with a ´path´ option in the Gemfile, because bundler has no orig‐
       inal copy it can restore from.

       When is it practical to use **bundle** **pristine**?

       It comes in handy when a developer is debugging a gem. **bundle** **pristine** is a great way to  get
       rid of experimental changes to a gem that one may not want.

       Why use **bundle** **pristine** over **gem** **pristine** **--all**?

       Both  commands  are very similar. For context: **bundle** **pristine**, without arguments, cleans all
       gems from the lockfile. Meanwhile, **gem** **pristine** **--all** cleans all installed gems for that Ruby
       version.

       If  a  developer  forgets  which  gems  in  their project they might have been debugging, the
       Rubygems **gem** **pristine** **[GEMNAME]** command may be inconvenient. One can avoid  waiting  for  **gem**
       **pristine** **--all**, and instead run **bundle** **pristine**.



                                            December 2021                         [BUNDLE-PRISTINE(1)](https://www.chedong.com/phpMan.php/man/BUNDLE-PRISTINE/1/markdown)