1. distro.make

api = 2
core = 7.x

projects[drupal][type] = core
projects[drupal][download][type] = git
projects[drupal][download][branch] = 7.x
projects[drupal][download][url] = http://git.drupal.org/project/drupal.git

2. drush commands

# Fetch Drupal 7 core
> drush -y make distro.make

# Install Drupal 
> drush -y site-install minimal --db-url=mysql://username:password@localhost/dbname # Save the admin password for later.

# Install Contrib Modules
> drush -y dl addressfield-7.x-1.x-dev ctools-7.x-1.x-dev entity-7.x-1.x-dev rules-7.x-2.x-dev views-7.x-3.x-dev features-7.x-2.x-dev commerce-7.x-1.x-dev commerce_features-7.x-1.x-dev date-7.x-2.x-dev field_permissions-7.x-1.x-dev field_group-7.x-2.x-dev interval-7.x-1.x-dev admin_menu-7.x-3.x-dev devel-7.x-1.x-dev strongarm-7.x-2.x-dev message-7.x-1.x-dev entityreference-7.x-1.x-dev commerce_paypal-7.x-2.x-dev commerce_sp-7.x-2.x-dev commerce_sp_paypal-7.x-1.x-dev

# Enable Contrib Modules
> drush en -y commerce commerce_ui commerce_customer commerce_customer_ui commerce_price commerce_line_item commerce_line_item_ui commerce_order commerce_order_ui commerce_checkout commerce_payment commerce_product commerce_cart commerce_product_pricing commerce_product_ui commerce_tax_ui admin_menu devel commerce_sp commerce_sp_paypal

3. UI changes

You now only need to do the following steps.

1. Create a few subscription based products
admin/commerce/products/add/commerce-sp-subscription
2. Create a Subscription content type with a Product reference field then reference the subscriptions added in step 1
3. Create the product display node
node/add/subscription
4. Add items from step 3 into cart and checkout.
5. Verify order was made
admin/commerce/orders

Ok, now that we have our first order, what should we do next? What can we do with these subscriptions? 

Sell user roles steps.

1. First lets create a customer role
> drush rcrt 'customer' 'Customer'
2. Add a rule on subscription start
admin/config/workflow/rules/reaction/manage/rules_commerce_sp_subscription_started_insert
3. Add an action
admin/config/workflow/rules/reaction/manage/rules_commerce_sp_subscription_started_insert/add/1/action
4. Select "User -> Add user role"
5. Select "customer" role created in step 1 then click Save
6. Repeat steps 3 through 5 for
admin/config/workflow/rules/reaction/manage/rules_commerce_sp_subscription_started_update

Remove user role at end of subscription

1. Add an action
admin/config/workflow/rules/reaction/manage/rules_commerce_sp_subscription_validity_is_unset
2. Select "User -> Remove user role"
3. Select "customer" role and save

Now proceed to make another order and then view the users profile to see the newly added "customer" role

Notes:
1. Cron jobs handle the rules subscription validations for expired subscriptions
3. ???
4. PROFIT!