app: update code to Rails 6.1

bin/setup

@@ -1,5 +1,5 @@
 #!/usr/bin/env ruby
-require 'fileutils'
+require "fileutils"
 
 # path to your application root.
 APP_ROOT = File.expand_path('..', __dir__)
@@ -9,10 +9,11 @@ def system!(*args)
 end
 
 FileUtils.chdir APP_ROOT do
-  # This script is a starting point to setup your application.
+  # This script is a way to set up or update your development environment automatically.
+  # This script is idempotent, so that you can run it at any time and get an expectable outcome.
   # Add necessary setup steps to this file.
 
-  puts "\n== Installing dependencies =="
+  puts '== Installing dependencies =='
   system! 'gem install bundler --conservative'
   system('bundle check') || system!('bundle install')
 
@@ -29,11 +30,11 @@ FileUtils.chdir APP_ROOT do
 
   # Create the database, load the schema, and initialize it with the seed data
   puts "\n== Preparing database =="
-  system! 'bin/rails db:setup'
+  system! 'bin/rails db:prepare'
 
   puts "\n== Removing old logs and tempfiles =="
   system! 'bin/rails log:clear tmp:clear'
 
-  puts "\n== Done =="
-  puts "You can now start the application server with `bin/rails server`."
+  puts "\n== Restarting application server =="
+  system! 'bin/rails restart'
 end