Guard prosopite behind an ENV variable

Defaults to on in dev but off in test unless you set the variable

.env.local.example

@@ -15,3 +15,5 @@ MAPBOX_DEV_API_KEY=
 PMTILES_GLYPHS=
 PMTILES_SPRITE=
 PMTILES_URL=
+# run the n+1 checker in development
+# RUN_PROSOPITE=true

.env.test.local.example

@@ -3,3 +3,6 @@ NO_HEADLESS_CHROME=false
 
 # Use if you need a special chrome path during testing
 # CHROME_SERVICE_PATH=
+
+# run the n+1 testing utility prosopite while testing
+# RUN_PROSOPITE=true

config/environments/development.rb

@@ -108,7 +108,12 @@
     Bullet.add_footer = true
   end
 
-  config.after_initialize do
-    Prosopite.rails_logger = true
+  # default to running prosopite in development unless overriden
+  ENV['RUN_PROSOPITE'] = ENV.fetch('RUN_PROSOPITE', true)
+
+  if ENV['RUN_PROSOPITE']
+    config.after_initialize do
+      Prosopite.rails_logger = true
+    end
   end
 end

config/environments/test.rb

@@ -70,10 +70,11 @@
   # Raise error when a before_action's only/except options reference missing actions.
   config.action_controller.raise_on_missing_callback_actions = true
 
-
-  config.after_initialize do
-    Prosopite.rails_logger = true
-    Prosopite.raise = true
+  if ENV.fetch('RUN_PROSOPITE', false)
+    config.after_initialize do
+      Prosopite.rails_logger = true
+      Prosopite.raise = true
+    end
   end
 
 end

config/initializers/prosopite.rb

@@ -1,4 +1,4 @@
-unless Rails.env.production?
+if ENV.fetch('RUN_PROSOPITE', false)
   require 'prosopite/middleware/rack'
   Rails.configuration.middleware.use(Prosopite::Middleware::Rack)
 end

spec/spec_helper.rb

@@ -124,12 +124,14 @@
     )
   end
 
-  config.before(:each) do
-    Prosopite.scan
-  end
+  if ENV.fetch('RUN_PROSOPHITE', false)
+    config.before(:each) do
+      Prosopite.scan
+    end
 
-  config.after(:each) do
-    Prosopite.finish
+    config.after(:each) do
+      Prosopite.finish
+    end
   end
 
   config.before(js: true) do