CODEWITHSUNDEEP
rubygems
jawilmont
jawilmont

Reputation: 318

Undo gem install?

I am working on a project that is adding a couple of features to a fragile and not well written Rails 2.3 app. I was trying to install just one gem, but I made a mistake when I ran 'gem install' and it updated 29 gems, including some of the Rails gems!

I know I can manually remove each new gem version, but I was wondering if there was an option to roll back the gem installation and undo all 29 updates. I am using rubygems 1.4.2 and do not have the option to upgrade.

Upvotes: 2

Views: 1072

Answers (1)

jordanpg
jordanpg

Reputation: 6516

Had this accident today... I just had to write a short script to fix it:

#!/bin/sh

while read line; do 
    package=`echo $line | awk '{print $3}' | sed 's/\([a-z0-9_-]*\)-.*/\1/'`
    version=`echo $line | awk '{print $3}' | sed 's/[a-z0-9_-]*-\(.*\)/\1/'`
    gem uni $package -v $version
done < accident

accident is just the output of the renegade install:

Successfully installed builder-3.0.0
Successfully installed activemodel-3.2.6
Successfully installed rack-1.4.1
Successfully installed rack-cache-1.2
Successfully installed rack-test-0.6.1

Upvotes: 1

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