Format all Nix files using the officially approved formatter,
making the CI check introduced in the previous commit succeed:
nix-build ci -A fmt.check
This is the next step of the of the [implementation](https://github.com/NixOS/nixfmt/issues/153)
of the accepted [RFC 166](https://github.com/NixOS/rfcs/pull/166).
This commit will lead to merge conflicts for a number of PRs,
up to an estimated ~1100 (~33%) among the PRs with activity in the past 2
months, but that should be lower than what it would be without the previous
[partial treewide format](https://github.com/NixOS/nixpkgs/pull/322537).
Merge conflicts caused by this commit can now automatically be resolved while rebasing using the
[auto-rebase script](8616af08d9/maintainers/scripts/auto-rebase).
If you run into any problems regarding any of this, please reach out to the
[formatting team](https://nixos.org/community/teams/formatting/) by
pinging @NixOS/nix-formatting.
The LibreNMS cache may contain paths to the old package and may break
when the old package is removed. So it is not enough to clear the cache
only on version updates, as the package will also change when build
inputs change.
This commit updates the setup script to regenerate the cache on every
package change. In addition, it now only performs migrations when the
package version has changed, since the migrations only change on version
updates and don't need to be applied on every package change.
The optimizations and view-cache require an initialized database to
work, so the current state breaks new installations. This commit fixes
that by performing the optimizations and view caching after the database
migrations.
This allows librenms to use socket authentication to the mysql package out of the box if installed under
the same username, avoiding complex DB password initialization steps.
