When doing list-unit-files with --root, we would re-read the preset
list for every unit. This uses a cache to only do it once. The time
for list-unit-files goes down by about ~30%.
unit_file_query_preset() is also called from src/core/. This patch does not
touch that path, since the saving there are smaller, since preset status is
only read on demand over dbus, and caching would be more complicated.
5238d9a83a renames this to exit-status, but systemd.service was not
updated.
The rest of the doc seems a bit inconsistent in its use of the terms
"exit code" and "exit status", but it's not that confusing, so leave
those alone for now.
It is super confusing when a command does not support --root, and is called
with it specified, and returns some bogus results. Let's just catch this
early and refuse.
We probably can migrate even more, but for now let's just migrate those
which have the 1:1 identical text everywhere.
(Also, let's add the % entry to all specifier tables)
The original source of these dimensions had swapped the x y dimension
arguments to touchpad-edge-detector. The correct dimensions are
x = 100 mm, y = 68 mm
Consider such configuration:
$ systemd-nspawn --read-only --timezone=copy --resolv-conf=copy-host \
--overlay="+/etc::/etc" <...>
Assuming one wants `/` to be read-only, DNS and `/etc/localtime` to
work. One way to do it is to create an overlay filesystem in `/etc/`.
However, systemd-nspawn tries to create `/etc/resolv.conf` and
`/etc/localtime` before mounting the custom paths, while `/` (and, by
extension, `/etc`) is read-only. Thus it fails to create those files.
Mounting custom paths before modifying anything in `/etc/` makes this
possible.
Full example:
```
$ debootstrap buster /var/lib/machines/t1 http://deb.debian.org/debian
$ systemd-nspawn --private-users=false --timezone=copy --resolv-conf=copy-host --read-only --tmpfs=/var --tmpfs=/run --overlay="+/etc::/etc" -D /var/lib/machines/t1 ping -c 1 example.com
Spawning container t1 on /var/lib/machines/t1.
Press ^] three times within 1s to kill container.
ping: example.com: Temporary failure in name resolution
Container t1 failed with error code 130.
```
With the patch:
```
$ sudo ./build/systemd-nspawn --private-users=false --timezone=copy --resolv-conf=copy-host --read-only --tmpfs=/var --tmpfs=/run --overlay="+/etc::/etc" -D /var/lib/machines/t1 ping -qc 1 example.com
Spawning container t1 on /var/lib/machines/t1.
Press ^] three times within 1s to kill container.
PING example.com (93.184.216.34) 56(84) bytes of data.
--- example.org ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 110.912/110.912/110.912/0.000 ms
Container t1 exited successfully.
```
This changes the calendarspec parser to allow expressions such as
"00:05..05", i.e. a range where start and end is the same. It also
allows expressions such as "00:1-2/3", i.e. where the repetition value
does not fit even once in the specified range. With this patch both
cases will now be optimized away, i.e. the range is removed and a fixed
value is used, which is functionally equivalent.
See #15030 for an issue where the inability to parse such expressions
caused confusion.
I think it's probably better to accept these gracefully and optimizing
them away instead of refusing them with a plain EINVAL. With a tool such
as "systemd-analyze" calendar it should be easy to figure out the
normalized form with the redundant bits optimized away.
Let's try to mangle table contents a bit to make them more suitable as
JSON field names. Specifically when we see "foo bar" convert this to
"foo_bar" as field name, as variable/field names are generally assumed
to be without spaces.
User accounts of given names are necessary for the build script and
tests to succeed.
(Fixup of #15527, too keen cleaning of dependencies and cached image
caused this.)
HUGE_SIZE was defined inconsistently.
> In file included from ../src/basic/alloc-util.h:9,
> from ../src/journal/test-compress.c:9:
> ../src/journal/test-compress.c: In function ‘main’:
> ../src/journal/test-compress.c:280:33: error: ‘HUGE_SIZE’ undeclared (first use in this function)
> 280 | assert_se(huge = malloc(HUGE_SIZE));
Zbigniew Jędrzejewski-Szmek