The mkosi github action doesn't set up the host machine for building
full images anymore. Instead, only sufficient packages are installed
to be able to build tools trees so we configure a fedora tools tree
to build the actual images.
We had both uid-range.h and uid-alloc-range.h. The latter now contains helpers
like {uid,gid}_is_{system,dynamic,container}(), uid_for_system_journal(), so
the existing name is outdated. I think the uid-range.[ch] should stay separate
because it has a bunch of helpers for parsing and printing of uid ranges. So
let's rename as in $subject to better reflect the contents of the file and make
the two sets of files harder to confuse.
We don't "uncapitalize" parts of an already-capitalized name when concatenating
words. In particular, we had UidRange in basic/uid-range.h and UGIDAllocationRange
in basic/uid-alloc-range.h, which is annoying.
We want to retain *some* of the full paths in order to test more code paths.
But the default should be to use the command name only. This makes the tests
less visually cluttered.
that way clients can distinguish whether there is no cid or whether
hostnamed doesn't support it nicely, by just looking if the prop exists
(but is null) or not.
This is similar how we already handle all other props in the JSON
record.
The test cases will call quite a lot of "systemctl stop
systemd-hostnamed", hence let's make sure we reset the start limit
counter each time, to not make this eventually fail.
(At other places we disabled the start limit counter, but here I opted
for resetting it manually via 'systemctl reset-failed', to test another
facet of the mechanism)
When we run in a container we should show our own system's info, not the
hosts hence suppress this info in that case.
This matches the behaviour of most other calls in hostnamed to expose
system properties.
