--- a/bin/setup	Fri May 31 09:45:02 2019 +0900
+++ b/bin/setup	Sun Jul 14 15:38:04 2019 +0900
@@ -1,34 +1,25 @@
 #!/usr/bin/env ruby
-require "pathname"
-require "fileutils"
-include FileUtils
+require '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 setup or update your development environment automatically.
+  # This script is idempotent, so that you can run it at anytime and get an expectable outcome.
   # Add necessary setup steps to this file.
 
-  puts "== Installing dependencies =="
-  system! "gem install bundler --conservative"
-  system("bundle check") || system!("bundle install")
-
-  # puts "\n== Copying sample files =="
-  # unless File.exist?('config/database.yml')
-  #   cp 'config/database.yml.sample', 'config/database.yml'
-  # end
-
-  puts "\n== Preparing database =="
-  system! "bin/rails db:setup"
+  puts '== Installing dependencies =='
+  system! 'gem install bundler --conservative'
+  system('bundle check') || system!('bundle install')
 
   puts "\n== Removing old logs and tempfiles =="
-  system! "bin/rails log:clear tmp:clear"
+  system! 'bin/rails log:clear tmp:clear'
 
   puts "\n== Restarting application server =="
-  system! "bin/rails restart"
+  system! 'bin/rails restart'
 end