Setup dotenv automatically

Author: coorasse

ruby_on_rails/app_initialisation.md

@@ -59,35 +59,6 @@ Some other adjustments must be performed manually.
 
 > ⭐️bin/check, bin/fastcheck and bin/run are standardized tools for more convenience at Renuo.
 
-### Manual adjustments
-
-Please perform these adjustments manually:
-
-#### ENV variables
-
-* Add `dotenv-rails` to Gemfile. Check the [gem homepage](https://github.com/bkeepers/dotenv) to see how to install the gem.
-* and create `.env.example` in the root folder of the project where you will specify the only environment variable you need for now:
-  `SECRET_KEY_BASE`.
-* Going forward we will only push the `.env.example` file to the repository in order to protect our env variables.
-* Add .env to .gitignore
-* Add the following section to your `bin/setup` script so that the `.env` is created from the `.env` when the project is setup locally:
-
-  ```ruby
-  puts "\n== Copying sample files =="
-  unless File.exist?('.env')
-    system! 'cp .env.example .env'
-  end
-  ```
-
-* add one more key to .env.example `APP_PORT=3000`
-* To ensure you have all the required keys from the `.env.example` in your `.env`,
-create the initializer for dotenv-rails in `config/initializers/dotenv_rails.rb`:
-
-```ruby
-Dotenv.require_keys(Dotenv.parse(".env.example").keys)
-```
-
-* Run `bin/setup` again.
 
 ### Secrets
 

ruby_on_rails/template.rb

@@ -17,11 +17,16 @@
 # replace bin/rails db:prepare with bin/rails db:setup in bin/setup
 gsub_file "bin/setup", "bin/rails db:prepare", "bin/rails db:setup"
 
-# add the renuo fetch-secrets command in bin/setup, before bin/rails db:setup
+# add the renuo fetch-secrets command and copying the dotenv file in bin/setup, before bin/rails db:setup
 insert_into_file "bin/setup", before: "\n  puts \"\\n== Preparing database ==\"" do
   <<-RUBY
   puts "\\n== Fetching 1password dependencies =="
-  system! 'renuo fetch-secrets'  
+  system! 'renuo fetch-secrets'
+  
+  puts "\n== Copying sample files =="
+  unless File.exist?('.env')
+    system! 'cp .env.example .env'
+  end
   RUBY
 end
 
@@ -43,8 +48,26 @@
   RUBOCOP
 end
 
-create_file ".env.example", force: true
-create_file ".env", force: true
+
+create_file ".env.example", force: true do
+  <<~ENV
+    SECRET_KEY_BASE=<%= `bin/rails secret`.strip %>
+    APP_PORT=3000
+  ENV
+end
+
+create_file ".env", force: true do
+  <<~ENV
+    SECRET_KEY_BASE=#{`bin/rails secret`.strip}
+    APP_PORT=3000
+  ENV
+end
+
+create_file "config/initializers/dotenv.rb", force: true do
+  <<~DOTENV
+    Dotenv.require_keys(Dotenv.parse(".env.example").keys)
+  DOTENV
+end
 
 create_file "bin/run", force: true do
   <<~RUN