[WIP] DeployBoy - A simple way to automate Rails deployment, efficiently

deployboy.rb

# Pull from GitHub
puts "Pulling..."
pull = `git pull`

if pull.include? "Already up to date."
  puts "Already up to date, nothing to deploy."
  exit
end

# Gem changes occur, we must bundle install
if pull.include? "Gemfile"
  print "Updating Gems..."
  `bundle install`
  puts " Done!"
end

# Did package.json or yarn.lock change?
# Install and recompile assets
if pull.include?("yarn.lock") || pull.include?("package.json")
  print "Updating dependencies..."
  `yarn install --check-files`
  `rake assets:precompile`
  puts " Done!"
end

# Did assets change? precompile
if pull.include?("assets") || pull.include?("javascript")
  print "Compiling assets..."
  `rake assets:precompile`
  puts " Done!"
end

`rails restart`

# Done!