Add Google Identity Platform support

Gemfile

@@ -42,6 +42,7 @@ gem 'libv8', '~> 3.16.14.7'
 gem 'stripe', git: 'https://github.com/stripe/stripe-ruby'
 gem 'high_voltage'
 gem 'omniauth-facebook'
+gem 'omniauth-google-oauth2'
 gem 'omniauth-strava'
 gem 'omniauth'
 gem 'fog'

app/models/integration.rb

@@ -16,7 +16,7 @@ def self.old_attr_accessible
   before_create :associate_with_user
   def associate_with_user
     self.provider_name ||= information['provider']
-    if provider_name == 'facebook' || provider_name == 'strava'
+    if provider_name == 'facebook' || provider_name == 'strava' || provider_name == 'google'
       update_or_create_user(email: information['info']['email'], name: information['info']['name'])
     end
   end

config/initializers/omniauth.rb

@@ -1,4 +1,5 @@
 Rails.application.config.middleware.use OmniAuth::Builder do
   provider :facebook, ENV['FACEBOOK_KEY'], ENV['FACEBOOK_SECRET'], scope: 'email'
   provider :strava, ENV['STRAVA_KEY'], ENV['STRAVA_SECRET'], scope: 'public'
-end
+  provider :google, ENV['GOOGLE_CLIENT_ID'], ENV['GOOGLE_CLIENT_SECRET'], scope: 'email'
+end

spec/fixtures/integration_data_google.json

@@ -0,0 +1,8 @@
+{
+  "provider": "google",
+  "credentials": {
+  },
+  "extra": {
+    }
+  }
+}