Add xdg settings, cache, cleanup script

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

users/common/configs/persist/default.nix

@@ -6,25 +6,20 @@ in {
   programs.fuse.userAllowOther = lib.mkIf (users != [ ]) true;
 
   systemd.tmpfiles.rules = lib.mkIf (users != [ ]) (
-    [ "d /persist/home 0755 root root -" ] ++
-    lib.attrsets.mapAttrsToList (user: config: "d /persist${config.home} 0700 ${user} users -") users
+    [
+      "d /persist/home 0755 root root -"
+      "d /cache/home 0755 root root -"
+    ] ++
+    lib.attrsets.mapAttrsToList (user: config: "d /persist${config.home} 0700 ${user} users -") users ++
+    lib.attrsets.mapAttrsToList (user: config: "d /cache${config.home} 0700 ${user} users -") users
   );
 
   home-manager.users = lib.attrsets.mapAttrs (user: config: ({
     imports = [ inputs.impermanence.nixosModules.home-manager.impermanence ];
 
-    home.persistence."/persist${config.home}" = {
-      allowOther = true;
-      directories = [
-        "Documents"
-        "Downloads"
-        "Music"
-        "Pictures"
-        "Videos"
-        "Templates"
-        "VMs"
-        "git"
-      ];
+    home.persistence = {
+      "/persist${config.home}".allowOther = true;
+      "/cache${config.home}".allowOther = true;
     };
   })) users;
 }

users/common/configs/xdg/default.nix

@@ -0,0 +1,44 @@
+{ config, lib, ... }:
+
+let
+  users = lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users;
+in {
+  home-manager.users = lib.attrsets.mapAttrs (user: cfg: (let
+    cacheHome = "${cfg.home}/.cache";
+    configHome = "${cfg.home}/.config";
+    dataHome = "${cfg.home}/.local/share";
+    stateHome = "${cfg.home}/.local/state";
+    xdgVmDir = "${cfg.home}/VMs";
+    xdgGitDir = "${cfg.home}/git";
+  in {
+    xdg = {
+      enable = true;
+      mimeApps.enable = true;
+
+      inherit cacheHome;
+      inherit configHome;
+      inherit dataHome;
+      inherit stateHome;
+
+      userDirs = {
+        enable = true;
+        extraConfig = {
+          XDG_VM_DIR = xdgVmDir;
+          XDG_GIT_DIR = xdgGitDir;
+        };
+      };
+    };
+
+    home.persistence."/persist${cfg.home}".directories = [
+      "Desktop"  # userDirs.desktop
+      "Documents"  # userDirs.documents
+      "Downloads"  # userDirs.download
+      "Music"  # userDirs.music
+      "Pictures"  # userDirs.pictures
+      "Templates"  # userDirs.templates
+      "Videos"  # userDirs.videos
+      "VMs"  # xdgVmDir
+      "git"  # xdgGitDir
+    ];
+  })) users;
+}

users/common/default.nix

@@ -1,4 +1,4 @@
-{ inputs, ... }:
+{ config, inputs, ... }:
 
 {
   imports = [
@@ -6,6 +6,7 @@
     ./options.nix
     ./configs/persist
     ./configs/sops
+    ./configs/xdg
   ];
 
   home-manager = {
@@ -15,6 +16,7 @@
     sharedModules = [{
       home.stateVersion = "24.05";
       systemd.user.startServices = "sd-switch";
+      nix.settings = config.nix.settings;
     }];
   };