Rake tasks to deploy jekyll build with rsync

Rakefile

desc "Build jekyll locally"
task :build do
  sh "bundle exec jekyll build"
end
 
desc "Deploy _site"
task :deploy => :build do
  user = 'user'
  host = 'example.com'
  release_dir = Time.new.strftime('%Y%m%d%H%M%S')
  releases_path = "/var/www/example.com/public_html/releases/#{release_dir}/"
  current_symlink = '/var/www/example.com/public_html/current'
  
  sh "rsync -avz --delete _site/ #{user}@#{host}:#{releases_path}"
  sh "ssh #{user}@#{host} 'ln -sfn #{releases_path} #{current_symlink}'"
end