Boot.rb

# Attempts to require all dependencies with bundler
begin
  require 'bundler'
  Bundler::Environment.load(root_path + "/Gemfile").require_env(RACK_ENV)
rescue Bundler::DefaultManifestNotFound => e
  puts "You didn't create Bundler Gemfile manifest or you are not in a Sinatra application."
end

# Attempts to load budled gems if it fail we try to use system wide gems
begin
  require root_path('/../vendor', 'gems', RACK_ENV)
  puts "We use bundled gems"
rescue LoadError => e
  puts "We use system wide gems"
end