AUR helpers are scripts/programs on Arch Linux to help users install unsupported software using install scripts in the Arch User Repository (AUR). Spinach is somewhat fast since it uses multiple threads and uses the AUR's multiinfo option. It is written in Bash with all of its depends in the official repositories, so you don't have to compile a bunch to use it. And, best of all, it rarely breaks. Throughout the major pacman updates it has never broken. It only "broke" when the AUR decided to forward everybody to the https site, which was only noticed if UseSSL=0.
Features (i.e., why it isn't small anymore)
Prerequisites: sudo pacman --needed -S base-devel jshon expac
Spinach: curl -Lo s floft.net/s;less s;read;bash s -i spinach;rm s
Search: spinach -s package
Print info: spinach -p package
Install: spinach -i package
Upgrade: spinach -u
For more information, read see `man spinach' or `spinach -h'. For recent changes, see the change log.