fmt

README.md

@@ -13,7 +13,9 @@ Opinionated system metrics exporter for prometheus
 
 ## Usage
 
-- Download the binary for your architecture from the [releases](https://github.com/icewind1991/palantir/releases/) and place it at `/usr/local/bin/palantir`
+- Download the binary for your architecture from the
+  [releases](https://github.com/icewind1991/palantir/releases/) and place it at
+  `/usr/local/bin/palantir`
 - Place the [palantir.service](palantir.service) file in `/etc/systemd/system/`
 - Create the `palantir` user: `sudo useradd -m palantir`
 - Start enable enable the server: `sudo systemctl enable --now palantir`
@@ -23,8 +25,10 @@ Some stats require additional permissions described below.
 
 ## Power monitoring permissions
 
-In recent kernel versions, precise power monitoring is only accessible to root users to prevent using it as a side-channel attack.
+In recent kernel versions, precise power monitoring is only accessible to root
-In order to get the power monitoring output you'll need to give the `palantir` user access to this data using the following steps.
+users to prevent using it as a side-channel attack. In order to get the power
+monitoring output you'll need to give the `palantir` user access to this data
+using the following steps.
 
 - Create a group using
 
@@ -59,7 +63,8 @@ In order to get the power monitoring output you'll need to give the `palantir` u
 
 ## Docker monitoring permissions
 
-To enable monitoring of docker containers, add the `palantir` user to the `docker` group
+To enable monitoring of docker containers, add the `palantir` user to the
+`docker` group
 
 ```bash
 sudo usermod -a -G docker palantir
@@ -67,4 +72,6 @@ sudo usermod -a -G docker palantir
 
 ## Windows support
 
-Palantir has limited windows support out of the box, additional sensors can be enabled by running [LibreHardwareMonitor](https://github.com/LibreHardwareMonitor/LibreHardwareMonitor).
+Palantir has limited windows support out of the box, additional sensors can be
+enabled by running
+[LibreHardwareMonitor](https://github.com/LibreHardwareMonitor/LibreHardwareMonitor).

flake.nix

@@ -10,7 +10,8 @@
       inputs.flakelight.follows = "flakelight";
     };
   };
-  outputs = { mill-scale, ... }: mill-scale ./. {
+  outputs = {mill-scale, ...}:
+    mill-scale ./. {
       packages.palantir = import ./package.nix;
 
       crossTargets = [
@@ -21,16 +22,16 @@
         "aarch64-unknown-linux-musl"
       ];
 
-    nixosModules = { outputs, ... }: {
+      nixosModules = {outputs, ...}: {
-      default =
+        default = {
-        { pkgs
+          pkgs,
-        , config
+          config,
-        , lib
+          lib,
-        , ...
+          ...
         }: {
-          imports = [ ./module.nix ];
+          imports = [./module.nix];
           config = lib.mkIf config.services.palantir.enable {
-            nixpkgs.overlays = [ outputs.overlays.default ];
+            nixpkgs.overlays = [outputs.overlays.default];
             services.palantir.package = lib.mkDefault pkgs.palantir;
           };
         };

module.nix

@@ -1,12 +1,12 @@
-{ config
+{
-, lib
+  config,
-, pkgs
+  lib,
-, ...
+  pkgs,
+  ...
 }:
 with lib; let
   cfg = config.services.palantir;
-in
+in {
-{
   options.services.palantir = {
     enable = mkEnableOption "Enables the palantir service";
 
@@ -69,13 +69,13 @@ in
     networking.firewall.allowedTCPPorts = lib.optional cfg.openPort cfg.port;
     networking.firewall.allowedUDPPorts = lib.optional cfg.openMDNSPort 5353;
 
-    users.groups.powermonitoring = { };
+    users.groups.powermonitoring = {};
 
-    services.udev.packages = [ cfg.package ];
+    services.udev.packages = [cfg.package];
 
     systemd.services."palantir" = {
-      wantedBy = [ "multi-user.target" ];
+      wantedBy = ["multi-user.target"];
-      after = [ "systemd-networkd-wait-online.service" ];
+      after = ["systemd-networkd-wait-online.service"];
       path = lib.optional cfg.zfs pkgs.zfs;
       environment =
         {
@@ -88,7 +88,7 @@ in
           then {
             DISABLE_MDNS = "true";
           }
-          else { }
+          else {}
         );
 
       serviceConfig = {
@@ -110,12 +110,12 @@ in
         ProtectHostname = true;
         LockPersonality = true;
         ProtectKernelTunables = true;
-        RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_NETLINK" ] ++ lib.optional cfg.docker "AF_UNIX"; # netlink is required to make `getifaddrs` not err
+        RestrictAddressFamilies = ["AF_INET" "AF_INET6" "AF_NETLINK"] ++ lib.optional cfg.docker "AF_UNIX"; # netlink is required to make `getifaddrs` not err
         RestrictRealtime = true;
-        SystemCallFilter = [ "@system-service" "~@resources" "~@privileged" ];
+        SystemCallFilter = ["@system-service" "~@resources" "~@privileged"];
-        IPAddressAllow = [ "localhost" ] ++ lib.optional cfg.mdns "multicast";
+        IPAddressAllow = ["localhost"] ++ lib.optional cfg.mdns "multicast";
         UMask = "0077";
-        SupplementaryGroups = [ "powermonitoring" ] ++ lib.optional cfg.docker "docker";
+        SupplementaryGroups = ["powermonitoring"] ++ lib.optional cfg.docker "docker";
       };
     };
   };

overlay.nix

@@ -1,3 +1,3 @@
 final: prev: {
-  palantir = final.callPackage ./package.nix { };
+  palantir = final.callPackage ./package.nix {};
 }

package.nix

@@ -1,16 +1,15 @@
-{ stdenv
+{
-, rustPlatform
+  stdenv,
-, coreutils
+  rustPlatform,
-, lib
+  coreutils,
-,
+  lib,
-}:
+}: let
-let
   inherit (lib.sources) sourceByRegex;
   inherit (builtins) fromTOML readFile;
-  src = sourceByRegex ./. [ "Cargo.*" "(src|benches)(/.*)?" ];
+  src = sourceByRegex ./. ["Cargo.*" "(src|benches)(/.*)?"];
   version = (fromTOML (readFile ./Cargo.toml)).package.version;
 in
-rustPlatform.buildRustPackage rec {
+  rustPlatform.buildRustPackage rec {
     pname = "palantir";
 
     inherit src version;
@@ -26,4 +25,4 @@ rustPlatform.buildRustPackage rec {
       echo 'SUBSYSTEM=="powercap", ACTION=="add", RUN+="${coreutils}/bin/chgrp -R powermonitoring /sys%p", RUN+="${coreutils}/bin/chmod -R g=u /sys%p"' >> $out/lib/udev/rules.d/51-palantir.rules
              echo 'SUBSYSTEM=="powercap", ACTION=="change", ENV{TRIGGER}!="none", RUN+="${coreutils}/bin/chgrp -R powermonitoring /sys%p", RUN+="${coreutils}/bin/chmod -R g=u /sys%p"' >> $out/lib/udev/rules.d/51-palantir.rules
     '';
-}
+  }