Add update and upgrade commands

pkgs/update/default.nix

@@ -0,0 +1,29 @@
+{
+  lib,
+  stdenv,
+  writeShellApplication,
+}:
+writeShellApplication
+{
+  name = "update";
+
+  runtimeInputs = [];
+
+  text = ''
+    # A script to update the flake lock for NixOS
+    set -e
+    pushd /tmp > /dev/null
+    rm -rf ./update
+    git clone https://git.lillianviolet.dev/Lillian-Violet/NixOS-Config.git ./update
+    pushd ./update > /dev/null
+    echo "Updating flake lock..."
+    nix flake update
+    git commit -m "update flake lock"
+    git push
+    popd > /dev/null
+    echo "Cleaning up repository in '/tmp/update'..."
+    rm -rf ./update
+    popd > /dev/null
+    echo "Flake lock update OK!"
+  '';
+}

pkgs/upgrade/default.nix

@@ -0,0 +1,17 @@
+{
+  lib,
+  stdenv,
+  writeShellApplication,
+}:
+writeShellApplication
+{
+  name = "rebuild";
+
+  runtimeInputs = [];
+
+  text = ''
+    # An upgrade script for nixos
+    sudo systemd-inhibit --who="NixOS Updater" --why="Updating flake lock" update
+    sudo systemd-inhibit --who="NixOS Updater" --why="Updating system configuration" rebuild-no-inhibit
+  '';
+}