Run rails upgrade task

next bundle exec rails app:update

bin/rails

@@ -1,6 +1,4 @@
 #!/usr/bin/env ruby
-# This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application.
-
-APP_PATH = File.expand_path('../../config/application',  __FILE__)
-require File.expand_path('../../config/boot',  __FILE__)
+APP_PATH = File.expand_path('../config/application', __dir__)
+require_relative '../config/boot'
 require 'rails/commands'

bin/rake

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+load File.expand_path('spring', __dir__)
 require_relative '../config/boot'
 require 'rake'
 Rake.application.run

bin/setup

@@ -1,17 +1,16 @@
 #!/usr/bin/env ruby
-require 'pathname'
 require 'fileutils'
-include FileUtils
 
 # path to your application root.
-APP_ROOT = Pathname.new File.expand_path('../../', __FILE__)
+APP_ROOT = File.expand_path('..', __dir__)
 
 def system!(*args)
   system(*args) || abort("\n== Command #{args} failed ==")
 end
 
-chdir APP_ROOT do
-  # This script is a starting point to setup your application.
+FileUtils.chdir APP_ROOT do
+  # 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 '== Installing dependencies =='
@@ -20,11 +19,11 @@ chdir APP_ROOT do
 
   # puts "\n== Copying sample files =="
   # unless File.exist?('config/database.yml')
-  #   cp 'config/database.yml.sample', 'config/database.yml'
+  #   FileUtils.cp 'config/database.yml.sample', 'config/database.yml'
   # end
 
   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'

bin/spring

@@ -1,18 +1,14 @@
 #!/usr/bin/env ruby
-
-# This file loads spring without using Bundler, in order to be fast
-# It gets overwritten when you run the `spring binstub` command
-
-unless defined?(Spring)
-  require "rubygems"
+if !defined?(Spring) && [nil, 'development', 'test'].include?(ENV['RAILS_ENV'])
+  gem "bundler"
   require "bundler"
 
-  if match = Bundler.default_lockfile.read.match(/^GEM$.*?^    spring \((.*?)\)$.*?^$/m)
-    ENV["GEM_PATH"] = ([Bundler.bundle_path.to_s] + Gem.path).join(File::PATH_SEPARATOR)
-    ENV["GEM_HOME"] = ""
-    Gem.paths = ENV
-
-    gem "spring", match[1]
-    require "spring/binstub"
+  # Load Spring without loading other gems in the Gemfile, for speed.
+  Bundler.locked_gems&.specs&.find { |spec| spec.name == 'spring' }&.tap do |spring|
+    Gem.use_paths Gem.dir, Bundler.bundle_path.to_s, *Gem.path
+    gem 'spring', spring.version
+    require 'spring/binstub'
+  rescue Gem::LoadError
+    # Ignore when Spring is not installed.
   end
 end