setup in latexpdf-0.5.0

- old
+ new
@@ -1,21 +1,25 @@
 #!/usr/bin/env ruby
-require 'pathname'
+require 'fileutils'
 
 # path to your application root.
-APP_ROOT = Pathname.new File.expand_path('../../',  __FILE__)
+APP_ROOT = File.expand_path('..', __dir__)
 
-Dir.chdir APP_ROOT do
-  # This script is a starting point to setup your application.
-  # Add necessary setup steps to this file:
+def system!(*args)
+  system(*args) || abort("\n== Command #{args} failed ==")
+end
 
-  puts "== Installing dependencies =="
-  system "gem install bundler --conservative"
-  system "bundle check || bundle install"
+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== Removing old logs and tempfiles =="
-  system "rm -f log/*"
-  system "rm -rf tmp/cache"
+  system! 'bin/rails log:clear tmp:clear'
 
   puts "\n== Restarting application server =="
-  system "touch tmp/restart.txt"
+  system! 'bin/rails restart'
 end