Ruby on Rails：Bundler＆amp; Capistrano：指定在部署时排除哪些组（开发，测试）

require 'bundler/capistrano' # siehe http://gembundler.com/deploying.html

  * executing "bundle install --gemfile .../releases/20110403085518/Gemfile 
    --path .../shared/bundle --deployment --quiet --without development test"

task :production do
  # These are default settings
  set :bundle_without, [:development, :test]
end

task :staging do
  set :bundle_without, [:test]
  # set :rails_env, 'staging'
end

cap deploy target=staging

if target == "staging"
  set :bundle_without, [:test]
  # do other stuff here
end