Unify storage options

lib/potassium/assets/README.yml

@@ -85,7 +85,7 @@ readme:
         paperclip:
           title: "Uploads"
           body: "For managing uploads, this project uses [Paperclip](https://github.com/thoughtbot/paperclip), a gem made by the awesome [Thoughbot](https://thoughtbot.com/) team."
-        storage:
+        active_storage:
           title: "Active Storage"
           body: "For managing uploads, this project uses [Active Storage](https://github.com/rails/rails/tree/master/activestorage)."
         pundit:

lib/potassium/cli_options.rb

@@ -67,20 +67,11 @@ module Potassium::CliOptions # rubocop:disable Metrics/ModuleLength
       default_test_value: false
     },
     {
-      type: :switch,
-      name: "paperclip",
-      desc: "Whether to include Paperclip as dependency",
-      negatable: true,
-      default_value: "none",
-      default_test_value: false
-    },
-    {
-      type: :switch,
-      name: "active_storage",
-      desc: "Whether to include Active Storage as dependency",
-      negatable: true,
-      default_value: "none",
-      default_test_value: false
+      type: :flag,
+      name: "storage",
+      desc: "Decides which file storage to use. Available: active_storage, paperclip, none",
+      default_value: "active_storage",
+      default_test_value: "active_storage"
     },
     {
       type: :switch,

lib/potassium/recipes/file_storage.rb

@@ -0,0 +1,82 @@
+class Recipes::FileStorage < Rails::AppBuilder
+  def ask
+    storages = {
+      active_storage: 'ActiveStorage',
+      paperclip: '[DEPRECATED] Paperclip',
+      none: 'None, thanks'
+    }
+
+    storage = answer(:storage) do
+      storages.keys[Ask.list('Which storage are you going to use?', storages.values)]
+    end
+
+    set(:storage, storage.to_sym)
+  end
+
+  def create
+    add_chosen_storage(check_rspec: false)
+  end
+
+  def install
+    ask
+    add_chosen_storage(check_rspec: true)
+  end
+
+  def installed?
+    gem_exists?(/paperclip/) || file_exist?('config/storage.yml')
+  end
+
+  private
+
+  def paperclip_config
+    @paperclip_config ||=
+      <<~RUBY
+        config.paperclip_defaults = {
+          storage: :s3,
+          s3_protocol: 'https',
+          s3_region: ENV.fetch('AWS_REGION', 'us-east-1'),
+          s3_credentials: {
+            bucket: ENV['S3_BUCKET']
+          }
+        }
+      RUBY
+  end
+
+  def config_rspec_for_paperclip
+    copy_file '../assets/testing/platanus.png', 'spec/assets/platanus.png'
+    copy_file '../assets/testing/paperclip.rb', 'spec/support/paperclip.rb'
+  end
+
+  def add_paperclip
+    gather_gem 'paperclip', '~> 5.0'
+    application paperclip_config, env: 'production'
+    append_to_file '.gitignore', "/public/system/*\n"
+  end
+
+  def add_active_storage
+    after(:gem_install) { run('bundle exec rails active_storage:install') }
+    copy_file('../assets/config/storage.yml', 'config/storage.yml', force: true)
+    active_storage_service_regexp = /config.active_storage.service = :local\n/
+    gsub_file 'config/environments/production.rb', active_storage_service_regexp do
+      'config.active_storage.service = :amazon'
+    end
+  end
+
+  def common_setup
+    add_readme_section :internal_dependencies, get(:storage)
+    append_to_file '.env.development', "S3_BUCKET=\n"
+  end
+
+  def add_chosen_storage(check_rspec:)
+    return if get(:storage) == :none
+
+    common_setup
+    case get(:storage)
+    when :paperclip
+      add_paperclip
+      config_rspec_for_paperclip if !check_rspec || gem_exists?(/rspec-rails/)
+    when :active_storage
+      add_active_storage
+    end
+  end
+end

lib/potassium/templates/application.rb

@@ -29,8 +29,7 @@
   ask :i18n
   ask :api
   ask :draper
-  ask :active_storage
-  ask :paperclip
+  ask :file_storage
   ask :heroku
   ask :github
 end
@@ -69,8 +68,7 @@
   create :draper
   create :power_types
   create :rack_cors
-  create :active_storage
-  create :paperclip
+  create :file_storage
   create :tzinfo
   create :script
   create :github

spec/features/file_storage_spec.rb

@@ -0,0 +1,64 @@
+require "spec_helper"
+
+RSpec.describe "File Storage" do
+  context "when selecting active_storage" do
+    before :all do
+      drop_dummy_database
+      remove_project_directory
+      create_dummy_project(storage: :active_storage)
+    end
+
+    it "customizes config file" do
+      content = IO.read("#{project_path}/config/storage.yml")
+      expect(content).to include("bucket: <%= ENV['S3_BUCKET'] %>")
+    end
+
+    it "adds brief to README file" do
+      content = IO.read("#{project_path}/README.md")
+      expect(content).to include("Active Storage")
+    end
+
+    it "uses amazon on production env" do
+      content = IO.read("#{project_path}/config/environments/production.rb")
+      expect(content).to include("config.active_storage.service = :amazon")
+    end
+
+    it "adds S3 bucket ENV vars" do
+      content = IO.read("#{project_path}/.env.development")
+      expect(content).to include("S3_BUCKET=")
+    end
+  end
+
+  context "when selecting paperclip" do
+    before :all do
+      drop_dummy_database
+      remove_project_directory
+      create_dummy_project(storage: :paperclip)
+    end
+
+    it "adds the Paperclip gem to Gemfile" do
+      gemfile_content = IO.read("#{project_path}/Gemfile")
+      expect(gemfile_content).to include("gem 'paperclip'")
+    end
+
+    it "adds brief to README file" do
+      content = IO.read("#{project_path}/README.md")
+      expect(content).to include("Paperclip")
+    end
+
+    it "adds local file storage path to gitignore" do
+      content = IO.read("#{project_path}/.gitignore")
+      expect(content).to include("/public/system/*")
+    end
+
+    it "adds paperclip_defaults config to production" do
+      content = IO.read("#{project_path}/config/environments/production.rb")
+      expect(content).to include("config.paperclip_defaults")
+    end
+
+    it "adds S3 bucket ENV var" do
+      content = IO.read("#{project_path}/.env.development")
+      expect(content).to include("S3_BUCKET=")
+    end
+  end
+end