Upgrade rubygems and/or specific gems themselves via capistrano

nicwilliams (Dr Nic Williams) — Wed, 19 Dec 2007 22:10:32 GMT

When a latest RubyGems is released (e.g. 0.9.5 recently) or Rails (e.g. 2.0.2) you might want to push those upgrades to all your production machines.

Add these two tasks to your deploy.rb capistrano file (add namespaces for cap2.0 if you like)



  desc "Updates RubyGems version"

  task :gem_update_system do

    sudo "gem update --system"

  end



    

  desc "Install a RubyGem from remote source"

  task :gem_install do

    puts "USAGE: GEM=gemname cap gems_install" and next unless ENV['GEM']

    sudo "gem install #{ENV['GEM']} --no-ri --no-rdoc"

  end

To upgrade rubygems and rails, for example:



cap gem_update_system

GEM=rails cap gem_install

DZone Snippets: rubygems code

Upgrade rubygems and/or specific gems themselves via capistrano