needrestart 3.6 fails to detect LXD when installed as a snap on newer Ubuntu revisions

[MaxRower]

Using needrestart 3.6 coming with Ubuntu 24.04 LTS and LXD 5.21.3.
As it fails to detect LXD, it wants to restart a container with "lxc-stop", which obviously fails.
In #26 (Commit e584a67) the detection for LXD was added, but this seems to check for /usr/bin/lxc and /var/lib/lxd/containers/$name, which do not exist here. It should check for /snap/bin/lxc as well, or maybe better search for lxc in $PATH, and /var/snap/lxd/common/lxd/containers/$name.
Since there is incus as well, it should be considered to make this configurable somewhere? Edit: incus seems already been implemented.

[MaxRower]

Oh, after researching where incus was implemented in f2e726d , I see, lxd snap seems to be there as well, in version 3.11. So Ubuntu 24.04 uses a really outdated version of needstart.

[MaxRower]

After checking the code of my needrestart version, it seems, it can handle lxd snap but not incus. So it should work, theoretically. But it does not.

When running it with -v it output the following:

[LXC] LXD installed via snap
[LXC] #781287 is part of LXC container 'somename' and should be restarted

So the container is not detected as LXD correctly.

If I take a look at the following code, I see, it checks for the existence of a directory in the container path.

my $type = ($self->{has_lxd} && -d qq($self->{lxd_container_path}/$name) ? 'LXD' : 'LXC');

But in my container path in /var/snap/lxd/common/lxd/containers/ there are no directories, but only symlinks to my lxd storage, like:
lrwxrwxrwx 1 root root 61 Jul 30 00:06 ansible -> /var/snap/lxd/common/lxd/storage-pools/nuc/containers/ansible

I checked three machines running lxd, in all three there were symlinks only, no directories. I am not using the default storage on all machines, but an extra btrfs mount.
So maybe check for directories and symlinks?

[MaxRower]

For a test, I replaced the -d with -l, and that solves the problem in my case. Don't know, if -d is needed in another case.