Automate updating of the rust util flake

machines/oracles/automation.nix

@@ -0,0 +1,43 @@
+{ config, lib, pkgs, inputs, ... }:
+let
+  repo-updater = pkgs.writeShellScriptBin "repo-updater"
+    (builtins.readFile ../../scripts/gitea/update-repo.sh);
+  environment = {
+    XDG_RUNTIME_DIR = "/tmp";
+    HOME = "/home/nathan";
+  };
+  path = with pkgs; [
+    git
+    inputs.nixpkgs-unstable.legacyPackages.${pkgs.system}.nurl
+    jq
+    curl
+    openssh
+    bash
+    nix
+  ];
+in {
+  # Setup hosts for gitea automation
+  networking.hosts = { "100.99.69.14" = [ "git.stranger.systems" ]; };
+  # Automate updating rust utility flake
+  systemd.services."rust-util-update" = {
+    inherit environment;
+    inherit path;
+    script = ''
+      env
+      ${repo-updater}/bin/repo-updater gitea@git.stranger.systems:nix/Rust.git trunk
+    '';
+    serviceConfig = {
+      Type = "oneshot";
+      User = "nathan";
+      Group = "users";
+    };
+  };
+  systemd.timers."rust-util-update" = {
+    wantedBy = [ "timers.target" ];
+    partOf = [ "rust-util-update.service" ];
+    timerConfig = {
+      OnCalendar = "Mon, 8:00";
+      Unit = "rust-util-update.service";
+    };
+  };
+}

machines/oracles/configuration.nix

@@ -1,6 +1,7 @@
 { config, lib, pkgs, inputs, ... }:
 
 {
+  imports = [ ./automation.nix ];
   # Sops setup for this machine
   sops.secrets = {
     "borg-ssh-key" = {
@@ -148,6 +149,9 @@
     locations."/" = { proxyPass = "http://localhost:8091"; };
   };
 
-  # Setup hosts for gitea automation
-  networking.hosts = { "100.99.69.14" = [ "git.stranger.systems" ]; };
+  # Configure nix build
+  nix.settings = {
+    cores = 6;
+    max-jobs = 6;
+  };
 }

scripts/gitea/update-repo.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -eou pipefail
+
+TEMP_DIR=$(mktemp -d "repo-updater.XXXX" -p $XDG_RUNTIME_DIR)
+pushd $TEMP_DIR
+
+git clone "$1" repo
+pushd repo
+git switch $2
+
+./update.sh
+
+git add -A
+if git commit -m "Update flake/dependencies"; then
+    git push -u origin $2
+else
+    echo "No changes made"
+fi
+
+popd
+popd
+rm -rf $TEMP_DIR