gem.rb

PackageManager::Gem

The Gem driver for the PackageManager provides a way to manage software packages for RubyGems using the gem command.

Specifying version of a particular gem to install

You can specify the specific version of a particular gem to use with the :version option, e.g., the "2.1.2" below:

  package_manager.install "rails", :with => :gem, :version => "2.1.2"

Note that you can only install one single gem with a version at a time.

Specifying instance of the "gem" program to use

You can specify the command to use with each call using the :gem option, e.g., the "gem1.8" below:

  package_manager.install "rails", :with => :gem, :gem => "gem1.8"

Or set a default and all subsequent calls will use it:

  package_manager[:gem].setup(:gem => "gem1.8")
  package_manager.install "rails", :with => :gem