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The zsh completions only complete one type argument, even though multiple
args are allowed. But the same issue occurs with other completions, e.g.
for options. I don't know how to solve this.
[1] says:
> Since 0.60.0 the name argument is optional and defaults to the basename of
> the first output
We specify >= 0.62 as the supported version, so drop the duplicate name in all cases
where it is the same as outputs[0], i.e. almost all cases.
[1] https://mesonbuild.com/Reference-manual_functions.html#custom_target
This is useful when the previous invocation is unexpectedly killed.
Otherwise, if systemd-nspawn is killed forcibly, then unix-export
directory is not cleared and unmounted, and the subsequent invocation
will fail. E.g.
===
[ 18.895515] TEST-13-NSPAWN.sh[645]: + machinectl start long-running
[ 18.945703] systemd-nspawn[1387]: Mount point '/run/systemd/nspawn/unix-export/long-running' exists already, refusing.
[ 18.949236] systemd[1]: systemd-nspawn@long-running.service: Failed with result 'exit-code'.
[ 18.949743] systemd[1]: Failed to start systemd-nspawn@long-running.service.
===
Currently homed scans /home/ via inotify for new .home + .homedir/
popping up to register as local users. Let's also add an explicit way to
request this form of "adoption": a bus call that takes a path and that
makes a home dir activatable locally.
(Usecase: you cross boot between two systems – let's say your traditional
fedora and your ParticleOS – and want to use the same homedir from both:
simply mount the /home dir from the other somewhere, and then hit
"homectl adopt /somewhere/lennart.home" and you have the user locally
too).
This adds --json=MODE option for 'udevadm test' command.
When specified, all messages, except for the final result, will be
written to stderr, and the final result is shown in JSON format to
stdout. It may be useful for parsing the test result.
When '--resolve-names=late', systemd-udevd resolves user/group names
during each event being processed, and does not verify names on parse.
When '--resolve-names=never', systemd-udevd refuses any user/group names
on parse. Hence, the parser of udev rules behaves diffrently. Let's not
convert 'never' -> 'late' silently, and use the specified option as is.
This also updates man page and shell completion for --resolve-names
option.
So far, we supported two modes:
1. when running unpriv we'd get the mounts from mountfsd, and the userns
from nsresourced
2. when running priv we'd do the mounts/userns ourselves
This untangles this a bit, so that we can also use mountfsd/nsresourced
when running privilged.
I think this is generally a bit nicer, and probably something we should
switch to entirely one day, as it reduces the variety of codepaths.
With this patch the default behaviour remains unchanged, but by
selecting the new "managed" option for --private-users= the codepaths
via mountfsd/nsresourced can be explicitly requested even when running
with privs.
This is mostly just reworks that we check for arg_userns_mode !=
USER_NAMESPACE_MANAGED rather than arg_privileged for a number of
codepaths, but requires more fixes, too. The devil is in the details.
systemctl has a --job-mode= argument, and adding the same argument to
systemd-run is useful for starting transient scopes with dependencies.
For example, if a transient scope BindsTo a service that is stopping,
specifying --job-mode=replace will wait for the service to stop before
starting it again, while the default job mode of "fail" will cause the
systemd-run invocation to fail.
systemctl has a --job-mode= argument, and adding the same argument to
systemd-run is useful for starting transient scopes with dependencies.
For example, if a transient scope BindsTo a service that is stopping,
specifying --job-mode=replace will wait for the service to stop before
starting it again, while the default job mode of "fail" will cause the
systemd-run invocation to fail.
This adds -D/--extra-rules-dir=DIR switch for 'udevadm test' command.
When specified, udev rules files in the specified directory will be also
loaded. This may be useful for debugging udev rules by copying some udev
rules files to a temporary directory.
We nowadays support unprivileged invocation of systemd-nspawn +
systemd-vmspawn, but there was no support for discovering suitable disk
images (i.e. no per-user counterpart of /var/lib/machines). Add this
now, and hook it up everywhere.
Instead of hardcoding machined's, importd's, portabled's, sysupdated's
image discovery to RUNTIME_SCOPE_SYSTEM I introduced a field that make
the scope variable, even if this field is always initialized to
RUNTIME_SCOPE_SYSTEM for now. I think these four services should
eventually be updated to support a per-user concept too, this is
preparation for that, even though it doesn't outright add support for
this.
This is for the largest part not user visible, except for in nspawn,
vmspawn and the dissect tool. For the latter I added a pair of
--user/--system switches to select the discovery scope.
This commit add the `-i` option to `udevadm trigger` that force it to
match parent devices even if they're excluded from filters.
The rationale is that some embedded devices have a huge number of
platform devices ( ~ 4k for MX8 ) they are there because they're defined
in the device tree but there isn't any action or udev rules associated
with them.
So at boot a significant time is spend triggering and processing rules
for devices that don't produce any effect and we would like to filter
them by calling:
```
udevadm trigger --type=device --action=add -s block -s tty
```
instead of the normal
```
udevadm trigger --type=device --action=add
```
so we can use filter to filter out only subsystems for we we know that
we have rules in place that do something useful.
On the other side action / rules are not triggered until the parent is
triggered ( which is part of another subsystem), so the additional option
will allows udev to complete the coldplug with only the devices we care.
Example on iMX8:
.Without the new option
```
root@dev:~# udevadm trigger --dry-run -s block --action=add -v
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot1
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p1
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p2
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p3
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p4
```
.With the new option
```
root@dev:~# udevadm trigger --dry-run -i -s block --action=add -v
/sys/devices/platform
/sys/devices/platform/bus@5b000000
/sys/devices/platform/bus@5b000000/5b010000.mmc
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot1
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p1
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p2
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p3
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p4
```
Boot time reduction with this is place is ~ 1 second.
We should avoid unnecessary abbreviations for such messages, and this
puts a maximum limit on things, hence it should indicate this in the
name.
Moreover, matches is a bit confusing, since most people will probably
call "busctl monitor" without any match specification, i.e. zero
matches, but that's not what was meant here at all.
Also, add a brief switch for this (-N) since I figure in particular
"-N1" might be a frequent operation people might want to use.
Follow-up for: 989e843e75
See: #34048
I don't actually need this anymore since we're going with a
unit based approach for the containers stuff internally so
let's just revert it.
Fixes#34085
This reverts commit ce2291730d.
This allows for example forcing to use /sbin/init instead of always
using /usr/lib/systemd/systemd if it exists. Or it allows using a
different path altogether.
