Hi,
I've just built two packages for archlinux, one concerning
xwiki-enterprise, the other xwiki-manager.
To install xwiki :
yaourt -S xwiki-enterprise
or
yaourt -S xwiki-manager
Packages are here :
https://aur.archlinux.org/packages/xwiki-enterprise/
and here :
https://aur.archlinux.org/packages/xwiki-manager/
What about creating a repository for them on xwiki-contrib, for example :
archlinux-packages ?
If someone create the repo, I'll upload files tomorrow.