Railsプロジェクト作成
$ cd ~
$ mkdir spree
$ cd spree
$ bundle init
$ vi Gemfile
$ bundle install --path vendor/bundle
$ rails new . -T -d mysql --skip-bundle
$ vi Gemfile
gem追加
gem 'spree', github: 'spree/spree'
$ bundle install
$ bundle exec rails g spree:install --migrate=false --sample=false --seed=false
bundle exec rake railties:install:migrations
bundle exec rake db:migrate
bundle exec rake db:seed
bundle exec rake spree_sample:load