incorporated john-p14s, big squash merge of stuff

modules/nix-tools/rebuild.nix

@@ -1,43 +1,91 @@
-{ inputs, ... }:
+{ self, inputs, ... }:
 {
-  flake.modules.homeManager.rebuild =
-    { pkgs, lib, config, ... }:
+  flake.modules.nixos.rebuild =
+    { config, pkgs, lib, ... }:
+    let
+      flakeDir = config.rebuild.flakeDir;
+      echoCmd = lib.getExe' pkgs.coreutils "echo";
+      hostnameCmd = "$(${lib.getExe pkgs.hostname} -s)";
+      nfs = (pkgs.writeShellScriptBin "nfs" ''
+        HOSTNAME=${hostnameCmd}
+        ${echoCmd} "Switching to the $HOSTNAME nixos profile"
+        sudo ${lib.getExe pkgs.nixos-rebuild} switch --impure --flake ${flakeDir}#$HOSTNAME
+      '');
+    in
     {
-      options = {
-        homeManagerFlakeDir = lib.mkOption {
+      options.rebuild = {
+        flakeDir = lib.mkOption {
+          description = "Path to the flake directory.";
           type = lib.types.str;
-          default = "${config.xdg.configHome}/home-manager";
-          description = "Path to the home-manager flake directory.";
+          default = "/etc/nixos";
         };
       };
 
-      config = let
-        nixBin = lib.getExe pkgs.nix;
-        flakeDir = config.homeManagerFlakeDir;
-      in
-      {
+      config = {
+        environment.systemPackages = with pkgs; [
+          nfs
+          (writeShellScriptBin "nfsu" ''
+            ${lib.getExe nix} flake update --impure --flake ${flakeDir}
+            ${lib.getExe git} -C ${flakeDir} add ${flakeDir}/flake.lock > /dev/null 2>&1
+            ${lib.getExe nfs}
+          '')
+        ];
+      };
+    };
+
+  flake.modules.homeManager.rebuild =
+    { config, pkgs, lib, ... }:
+    let
+      nixBin = lib.getExe pkgs.nix;
+      flakeDir = config.homeManagerFlakeDir;
+      echoCmd = lib.getExe' pkgs.coreutils "echo";
+      hostnameCmd = "$(${lib.getExe pkgs.hostname} -s)";
+      nhms = (pkgs.writeShellScriptBin "nhms" ''
+        HOSTNAME=${hostnameCmd}
+        ${echoCmd} "Switching to the $HOSTNAME home-manager profile"
+        ${lib.getExe pkgs.home-manager} switch --impure --flake ${flakeDir}#$HOSTNAME
+      '');
+    in
+    {
+      options = {
+        homeManagerFlakeDir = lib.mkOption {
+          description = "Path to the home-manager flake directory.";
+          type = lib.types.str;
+          default = "${config.xdg.configHome}/home-manager";
+        };
+        buildHostname = lib.mkOption {
+          description = "Hostname for the NixOS configuration to use.";
+          type = lib.types.str;
+          default = hostnameCmd;
+        };
+      };
+
+      config = {
         home.activation.printFlakeDir = lib.hm.dag.entryAfter ["writeBoundary"] ''
-          run echo "Home Manager flake directory: ${flakeDir}"
+          run ${echoCmd} "Home Manager flake directory: ${flakeDir}"
         '';
 
         home.packages = with pkgs; [
           home-manager
-          (writeShellScriptBin "flake-parts-test" ''
-            echo "Test ${flakeDir}"
-          '')
           (writeShellScriptBin "flake-parts-check" ''
             cd ${flakeDir}
-            ${nixBin} run ".#write-flake"
+            ${nixBin} run "${flakeDir}#write-flake"
             ${nixBin} flake check
           '')
-          (writeShellScriptBin "nhms" ''
-            HOSTNAME=$(hostname -s)
-            echo "Switching to the $HOSTNAME profile"
-            ${lib.getExe home-manager} switch --impure --flake ${flakeDir}#$HOSTNAME
-          '')
+          nhms
           (writeShellScriptBin "nhmu" ''
             ${nixBin} flake update --flake ${flakeDir}
-            nhms
+            ${lib.getExe nhms}
+          '')
+
+          (writeShellScriptBin "test-build" ''
+            if [ -z "$1" ]; then
+              HOSTNAME=${hostnameCmd}
+            else
+              HOSTNAME="$1"
+            fi
+            ${echoCmd} "Testing the evaulation of the nixos config for $HOSTNAME"
+            ${lib.getExe nix} eval ${flakeDir}#nixosConfigurations.$HOSTNAME.config.system.build.toplevel.drvPath
           '')
         ];
       };