Add zsh completion to laravel artisan comands

laravel_completion.zsh

# Laravel 5 basic command completion
_laravel5_get_command_list () {
	php artisan --no-ansi | sed "1,/Available commands/d" | awk '/^ +[a-z]+/ { print $1 }'
}

_artisan () {
  if [ -f artisan ]; then
    compadd `_laravel5_get_command_list`
  fi
}

compdef _artisan artisan