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dfc0445cb8
The systemctl completion previously made use of PREFIX as a pattern
argument to list-unit-files and list-units. This had the problem of
erroneously filtering the results that were stored in the cache, and
erroneously filtering results that might have been requested according
to the users configuration (e.g. _correct completer, certain
matcher-lists or tag-orders, etc.).
Unfortunately, the runtime of list-unit-files increases when no pattern
argument is provided, and systemctl show, used to filter those units,
can become unacceptably slow when provided with too many units to
describe.
Let's re-introduce the pattern argument to list-unit-files and
list-units where necessary in order to alleviate these bottlenecks
without poisining the cache. A 'use-pattern' style is introduced that
may be used to disable this behavior if it is undesired. We can still
expect that certain completions, like `systemctl start <TAB>` will be
slow, like before. To fix this we will need systemd to learn a more
efficient way of filtering the units than parsing systemctl show.
(cherry picked from commit
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| .. | ||
| _bootctl | ||
| _busctl | ||
| _coredumpctl | ||
| _hostnamectl | ||
| _journalctl | ||
| _kernel-install | ||
| _localectl | ||
| _loginctl | ||
| _machinectl | ||
| _networkctl | ||
| _oomctl | ||
| _resolvectl | ||
| _sd_hosts_or_user_at_host | ||
| _sd_machines | ||
| _sd_outputmodes | ||
| _sd_unit_files | ||
| _systemctl.in | ||
| _systemd | ||
| _systemd-analyze | ||
| _systemd-delta | ||
| _systemd-inhibit | ||
| _systemd-nspawn | ||
| _systemd-path | ||
| _systemd-run | ||
| _systemd-tmpfiles | ||
| _timedatectl | ||
| _udevadm | ||
| meson.build | ||