Isolate down pghero to just dev/demo environments and prune some Rail…

…s 8 gems

Gemfile

@@ -21,7 +21,6 @@ gemspec
 
 gem 'activerecord-jdbcpostgresql-adapter', platforms: [:jruby]
 gem 'pg', platforms: [:mri, :mingw, :x64_mingw]
-gem "pghero"
 
 rails_versions = {
   "6.1" => { github: "rails/rails", branch: "6-1-stable" }, # https://github.com/bensheldon/good_job/issues/1280
@@ -33,8 +32,6 @@ rails_versions = {
 }
 gem 'rails', rails_versions[ENV.fetch("RAILS_VERSION", nil)]
 
-gem "sprockets-rails"
-
 platforms :ruby do
   gem "bootsnap"
   gem "dotenv-rails"
@@ -71,6 +68,11 @@ platforms :ruby do
     gem "tapioca", require: false
   end
 
+  group :development, :demo, :production do
+    gem "pghero"
+    gem "sprockets-rails"
+  end
+
   group :demo, :production do
     gem "skylight"
   end

demo/config/routes.rb

@@ -4,5 +4,5 @@
 
   get :create_job, to: 'application#create_job'
 
-  mount PgHero::Engine, at: "pghero"
+  mount PgHero::Engine, at: "pghero" if defined?(PgHero)
 end

spec/support/example_app_helper.rb

@@ -11,7 +11,7 @@ def setup_example_app
 
     root_path = example_app_path.join('..')
     FileUtils.cd(root_path) do
-      system("rails new #{app_name} -d postgresql --no-assets --skip-action-text --skip-action-mailer --skip-action-mailbox --skip-action-cable --skip-git --skip-sprockets --skip-listen --skip-javascript --skip-turbolinks --skip-system-test --skip-test-unit --skip-bootsnap --skip-spring --skip-active-storage")
+      system("rails new #{app_name} -d postgresql --skip-action-text --skip-action-mailer --skip-action-mailbox --skip-action-cable --skip-git --skip-sprockets --skip-listen --skip-javascript --skip-turbolinks --skip-solid --skip-kamal --skip-system-test --skip-test-unit --skip-bootsnap --skip-spring --skip-active-storage")
     end
 
     FileUtils.rm_rf("#{example_app_path}/config/initializers/assets.rb")