How to freeze gems in Ruby on Rails

Posted on 07 February 2010

It's always a good idea to freeze your gems in your Ruby on Rails app when you don't have full control over your hosting environment.

To freeze any gems that are listed inside your Rails::Initializer config block just run the following on the command line...

rake gems:unpack

Your gems will be frozen in the vendor/gems directory.

Alternatively you can freeze a specific gem version by...

[~/yourapp/vendor/gems] gem unpack gem_name -v=<version>

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