pacman_packages answers one package on every node, or each node's counts, its explicit packages no module
declares and its foreign ones apart, the versions that differ and the packages on some nodes only, with a
node over the bus's cap marked not current. pacman_updates, pacman_installed and pacman_foreign read the
keeper's states instead of the machine; pacman_updates says when each node's list last changed.
The keeper reads pacman's database into installed.<node> and writes it only when it differs from the key,
says each change as package.changed, and keeps the last value when the list is over the bus's cap, marking
the node not current until it fits again; the health names the size. The loop runs over injected states,
events, clock, watch and machine, and leaves hooks (start, after a transaction, state watches, wakes) for the
upgrade parts of ADR 0508.
Mirrors were generated once and never again and caches never cleaned. The
module holds node-package-manager (hq ADR 0207), declares pacman itself, owns
/etc/pacman.conf whole — [options] cannot take an appended block — with the
union of the enabled repositories and improved options, proven by pacman-conf
in its test, and enables reflector.timer (its config owned) and
paccache.timer. Fifteen tools from a Go bundle; transactions run as transient
units so a call's timeout never kills pacman mid-transaction (to-be 42).
jschoubben
mesh-tools
jochen