.. or simply aursh is is Python shell, that should help you with building and installing packages from ABS and AUR. It also can be pacman wrapper (but actually pacman is awesome without any third party tool), and even more -just write plugin.

You can simply build and install package using PKGBUILD.

There are some docs, and first alpha is going to be relesed soon.

If you know how to improve aurshell or you've found a bug, please contact me (see my profile)