terminate unicorn procs on deploy

Capfile

@@ -12,6 +12,3 @@ require 'capistrano3/unicorn'
 
 # Load custom tasks from `lib/capistrano/tasks` if you have any defined
 Dir.glob('lib/capistrano/tasks/*.cap').each { |r| import r }
-
-after "deploy:published", "unicorn:terminate"
-after "deploy:published", "unicorn:start"

lib/capistrano/tasks/unicorn.cap

@@ -2,15 +2,10 @@ namespace :unicorn do
   desc "Terminate unicorn processes (blocks until complete)"
   task :terminate do
     on roles(:app) do
-      n = 0
-      while n < 10 && !capture("pgrep -f unicorn").blank?
-        execute "pgrep -f unicorn | xargs -SIGTERM"
-        n += 1
-      end
-
-      if n == 10
-        execute "pgrep -f unicorn | xargs -SIGKILL"
-      end
+      execute "[[ -n $(pgrep -f unicorn) ]] && pgrep -f unicorn | xargs kill -SIGTERM"
     end
   end
 end
+
+after "deploy:published", "unicorn:terminate"
+after "deploy:published", "unicorn:start"