Spree is a complete open source commerce solution for Ruby on Rails. It was originally developed by Sean Schofield and is now maintained by a dedicated core team. You can find out more about by visiting the Spree e-commerce project page.
Spree actually consists of several different gems, each of which are maintained in a single repository and documented in a single set of online documentation. By requiring the Spree gem you automatically require all of the necessary dependency gems. Those gems are as follows:
All of the gems are designed to work together to provide a fully functional e-commerce platform. It is also possible, however, to use only the pieces you are interested in. So for example, you could use just the barebones spree_core gem and perhaps combine it with your own custom authorization scheme instead of using spree_auth.
Using the Gem
Start by adding the gem to your existing Rails 3.x application's Gemfile
Update your bundle
Then use the install generator to install all of the necessary migrations, assets, etc.
rails g spree:install
NOTE: This takes a while since its actually calling several generators (one for each of the dependencies) and apparently Rails generators are quite slow.
Now you just need to run the new migrations
rake db:migrate rake db:seed
If you also want some sample products, orders, etc. to play with you can run the appropriate rake task.
Browse Admin Interface
Working with the edge source (latest and greatest features)
The source code is essentially a collection of gems. Spree is meant to be run within the context of Rails application. You can easily create a sandbox application inside of your cloned source directory for testing purposes.
Clone the git repo
git clone git://github.com/railsdog/spree.git spree cd spree
Install the gem dependencies
Create a sanbox rails application for testing purposes
rails new sandbox -m sample/sandbox_template.rb cd sandbox
Generate the necessary Spree files
rails g spree:install
Bootstrap the database (run the migrations, create seed data, optionally load sample data.)
rake db:migrate db:seed db:sample
Start the server
Each gem contains its own series of tests, and for each directory, you need to do a quick one-time creation of a test application and then you can use it to run the tests. For example, to run the tests for the core project.
rails new testapp -m spec/test_template.rb -T -J cd testapp rails g spree_core:install rake db:migrate db:seed db:test:prepare
Then run the tests
Note that each project has its own generator for "installing." This basically sets up the test app with what it needs to run (primarily migrations.) So for the spree_auth gme, for example, you would use the following
rails g spree_auth:install
Spree is an open source project. We encourage contributions. Please see the contributors guidelines before contributing. Do not send a Github pull request - it will be ignored.