systemd-sysupdate copies the "user.uapi.match_…" extended attributes of files
in UAPI.16 manifests onto the files it installs, which restrict the
files to specific systems (hostname, machine ID, machine tags, os-release
image/OS ID and version). Let's honour them when picking entries from
.v/ directories too: entries whose extended attributes don't match the
local system are skipped, as if they didn't exist. The system properties
are only loaded once an entry actually carries one of the attributes.
Entries referenced literally, i.e. without making use of .v/ logic, are
not filtered.
This may be turned off with the new PICK_IGNORE_XATTR_MATCH flag, which
systemd-vpick exposes as --match-xattr=no.
Lennart Poettering
8a9b726de0