For now all is handled in a script "prepost-action.sh" in package's
metadata directory, with a target in the shell script.
--HG--
extra : convert_revision : 93ed92d9fbb12939c751354cff464cc097379520
A higher number in this var will make the binary package to
be installed before other with lower priority. By default, all
packages have a 0 priority. xbps-base-dirs uses 100, because it
needs to be one of the first installed packages.
--HG--
extra : convert_revision : 81a88b676d2ae3180914612371619f19e1765d02