install rspec

いつも忘れるのでメモ：

$ ruby script/plugin install git://github.com/dchelimsky/rspec.git -r 'refs/tags/1.2.8'
$ ruby script/plugin install git://github.com/dchelimsky/rspec-rails.git -r 'refs/tags/1.2.7.1'
$ ruby script/generate rspec

追記

environment.rbでconfig.gemを設定してrake gems:installのが確実か。

config.gem "rspec", :lib => false, :version => "1.2.7"
config.gem "rspec-rails", :lib => false, :version => "1.2.7.1"