4e9183059a
This fixes a few unrelated issues: - when ENABLE_MACHINED is false, machinectl is not installed, but _sd_machines is still used in a few places that want to complete -M and such. Also, bash completion calls machinectl in various places. Make missing machinectl mean "no machines" in this case, so that no error is generated in the callers. - machinectl list --full would print multiple lines of output per machine, breaking grep, issue introduced in e2268fa43742ece4a5cdc2e93f731b2bb2fcc883. Using --max-addresses=1 would fix the issue, but let's use --max-addresses=0 because we now can. - the lists used in various places were slightly different for no good reason. - don't use a subshell if not necessary. The code for bash still uses the same combined list of images and running machines for various commands. The zsh code uses images for start/clone, and running machines for the rest. Maybe something to fix in the future. Replaces #25048.
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