Closes#234802
The problem here is that with e.g.
{
uptime.prefix = "Up";
banner.command = "hostname | figlet -f slant";
}
`banner` still appears before `uptime` in the final motd text because
Nix sorts attribute names alphabetically internally.
To work around this without breaking compatibility or losing the
property to override individual sections in other modules - e.g.
{
banner.color = mkForce "blue";
}
I decided to introduce an option `priority` here, similar to the
priority field for `nginx`[1] and with the same semantics (i.e. higher
value means lower priority).
Internally a bunch of env vars are generated, i.e. `env0` to `envN` for
`N` sections with each of them containing a declaration for the TOML,
i.e. `env0` contains `{ uptime.prefix = "Up"; }` and `env1` contains
`{ banner.command = "hostname | figlet -f slant"; }` if `uptime.priority`
is set to a value below 1000.
In this order, the declarations are concatenated together by `jq(1)`
which doesn't sort keys alphabetically which results in a JSON
representation with `uptime` before `banner`. This is finally piped to
`json2toml` which converts this into TOML for rust-motd.
[1] https://nixos.org/manual/nixos/unstable/options#opt-services.nginx.virtualHosts._name_.locations._name_.priority
Use "$out/var/lib" as LOCALSTATEDIR configuration value
by default intsead of "/var/lib"
as a way toward top-level-directory independent runtime.
Add input argument externalLocalStateDir to optionally specify the
path to external LOCALSTATEDIR if not null.
Add NixOS module option
programs.singularity.enableExternalLocalStateDir (default to true)
to use "/var/lib" as LOCALSTATEDIR.
We set[1] ASPELL_CONF to the last nix profile containing lib/aspell in
2013. In 2017, aspell is patched[2] to search NIX_PROFILES, which
makes [1] not needed any more.
Deleting it is also agreed in this discussion[3].
[1]: 0192c02720
[2]: ba4cefe4ae
[3]: https://github.com/NixOS/nixpkgs/pull/30234
remove `with lib;`
profiles option now accepts packages in addition to paths.
profiles option is no longer internal.
cfgDir definition has been inlined.
pulled GIO_EXTRA_MODULES inside mkif.
removed pointless comments with section headings.
defined profiles are now turned into package, allowing to simplify the db update logic.
If other sockets are enabled, such as gpg-agent-browser.socket,
those should be started before gpg-agent.service as well.
Change-Id: I29d3f4b19db9e687425b594dcef863a88ec296c9
Since Linux 5.7 it's possible to set `SO_BINDTODEVICE` via `setsockopt(2)`
as unprivileged user if this operation doesn't imply escaping a VRF
interface[1].
Dropping the wrapper is actually desirable because `captive-browser`
itself doesn't drop capabilities and as a result, the capabilities are
passed on to `chromium` itself[2].
For older kernels, this is still necessary, hence the wrapper will only
be added nowadays if the kernel is older than 5.7.
[1] c427bfec18
[2] 08450562e5/bind_device_linux.go (L11-L14)
and because our setcap wrapper makes all capabilities
inheritable.
Unfortunately there's no test for me to confirm that it works,
so all I can do is ask for maintainers, unfortunately -- I mean...
This is your opportunity!
