How to force composer to reinstall a library

Question

I m using the ZF2 skeleton app and it has a  gitignore that prevents external libraries from being commited to git  While debugging I like to go and change stuff here and there in the libraries  source to learn how things work  If these were version controlled it would be very easy to revert them back to their original state   How can I force Composer to reinstall a particular framework so that I can get a fresh -unmodified- copy again   PS  Please don t suggest removing the  gitignore file since it s there for a reason  it prevents my third party libraries from getting into my app s repository  I can always install them during an automated deployment

User · Accepted Answer

You can use the --prefer-source flag for composer to checkout external packages with the VCS information  if any available   You can simply revert to the original state  Also if you issue the composer update command composer will detect any changes you made locally and ask if you want to discard them   Your  gitignore file is related to your root project  ZF2 skeleton  and it prevents the vendor dir  where your third party libs are  from committing to your own VCS  The ignore file is unrelated to the git repo s of your vendors

User · Answer

I didn t want to delete all the packages in vendor  directory  so here is how I did it    rm -rf vendor package-i-messed-up composer install again

User · Answer

First execute composer clearcache Then clear your vendors folder rm -rf vendor    or better yet just remove the specific module which makes problems to avoid having to download all over again

User · Answer

Reinstall the dependencies  Remove the vendor folder  manually  or via rm command  if you are in the project folder  sure  on Linux before   rm -rf vendor   composer update -v   https   www dev-metal com composer-problems-try-full-reset

User · Answer

What I did    Deleted that particular library s folder composer update --prefer-source vendor library-name   It fetches the library again along with it s git repo

User · Answer

As user  aaracrr pointed out in a comment on another answer probably the best answer is to re-require the package with the same version constraint    ie   composer require vendor package   or specifying a version constraint  composer require vendor package  1 0 0

User · Answer

For some reason no one suggested the obvious and the most straight forward way to force re-install   gt  composer remove vendor-name package-name  amp  amp  composer vendor-name package-name

[php] How to force composer to reinstall a library?

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