Modularize code

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

hosts/common/configs/persist/default.nix

@@ -0,0 +1,22 @@
+{ inputs, lib, ... }:
+
+{
+  imports = [ inputs.impermanence.nixosModules.impermanence ];
+
+  fileSystems."/persist".neededForBoot = true;
+  boot.initrd.postDeviceCommands = lib.mkAfter (builtins.readFile ./impermanence.sh);
+
+  environment.persistence."/persist" = {
+    hideMounts = true;
+    directories = [
+      "/etc/nixos"
+      "/etc/NetworkManager/system-connections"
+      "/var/lib/nixos"
+      "/var/lib/systemd/coredump"
+      "/var/log"
+    ];
+    files = [
+      "/etc/machine-id"
+    ];
+  };
+}

hosts/common/configs/persist/impermanence.sh

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 delete_subvolume_recursively() {
   IFS=$'\n'
   for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
@@ -17,7 +15,7 @@ if [[ -e /mnt/btrfs/root ]]; then
   mv /mnt/btrfs/root "/mnt/btrfs/root.bak/$timestamp"
 fi
 
-find /mnt/btrfs/root.bak/ -maxdepth 1 -mtime +30 | while IFS= read -r i; do
+find /mnt/btrfs/root.bak/ -maxdepth 1 -mtime +14 | while IFS= read -r i; do
   delete_subvolume_recursively "$i"
 done
 

hosts/common/configs/sops/default.nix

@@ -0,0 +1,16 @@
+{ inputs, pkgs, ... }:
+
+{
+  imports = [ inputs.sops-nix.nixosModules.sops ];
+
+  environment = {
+    persistence."/persist".files = [ "/etc/ssh/ssh_host_ed25519_key" ];
+    systemPackages = with pkgs; [ sops ];
+  };
+
+  sops.age = {
+    generateKey = true;
+    sshKeyPaths = [ "/persist/etc/ssh/ssh_host_ed25519_key" ];
+    keyFile = "/var/lib/sops-nix/key.txt";
+  };
+}

hosts/common/configs/zsh/default.nix

@@ -3,4 +3,6 @@
     enable = true;
     histFile = "/var/lib/zsh/history";
   };
+
+  environment.persistence."/persist".directories = [ "/var/lib/zsh" ];
 }

hosts/common/default.nix

@@ -2,8 +2,9 @@
 
 {
   imports = [
-    inputs.impermanence.nixosModules.impermanence
-    inputs.sops-nix.nixosModules.sops
+    ./configs/persist
+    ./configs/sops
+
     ./configs/pipewire
     ./configs/zsh
     ./configs/neovim
@@ -14,8 +15,6 @@
     ./configs/gpg-agent
   ];
 
-  fileSystems."/persist".neededForBoot = true;
-
   boot = {
     loader = {
       systemd-boot.enable = true;
@@ -23,46 +22,23 @@
       efi.canTouchEfiVariables = true;
     };
 
-    initrd = {
-      verbose = false;
-      postDeviceCommands = lib.mkAfter (builtins.readFile ./scripts/impermanence.sh);
-    };
-
     kernelPackages = pkgs.linuxPackages_latest;
     supportedFilesystems = [ "btrfs" "ntfs" ];
     kernelParams = [ "loglevel=3" "quiet" ];
+    initrd.verbose = false;
     consoleLogLevel = 0;
   };
 
-  environment = {
-    persistence."/persist" = {
-      hideMounts = true;
-      directories = [
-        "/etc/nixos"
-        "/etc/NetworkManager/system-connections"
-        "/var/lib/nixos"
-        "/var/lib/systemd/coredump"
-        "/var/lib/zsh"
-        "/var/log"
-      ];
-      files = [
-        "/etc/ssh/ssh_host_ed25519_key"
-        "/etc/machine-id"
-      ];
-    };
-
-    systemPackages = with pkgs; [
-      tree
-      ranger
-      btop
-      fastfetch
-      sops
-    ];
-  };
-
   networking.networkmanager.enable = true;
   i18n.defaultLocale = "en_US.UTF-8";
 
+  environment.systemPackages = with pkgs; [
+    tree
+    ranger
+    btop
+    fastfetch
+  ];
+
   users = {
     mutableUsers = false;
     defaultUserShell = pkgs.zsh;
@@ -72,12 +48,6 @@
     Defaults lecture = never
   '';
 
-  sops.age = {
-    generateKey = true;
-    sshKeyPaths = [ "/persist/etc/ssh/ssh_host_ed25519_key" ];
-    keyFile = "/var/lib/sops-nix/key.txt";
-  };
-
   system = {
     autoUpgrade = {
       enable = true;

hosts/eirene/base/default.nix

@@ -13,9 +13,7 @@
   # https://github.com/NixOS/nixos-hardware/tree/master/lenovo/legion/16achg6
 
   hardware = {
-    cpu.amd = {
-      updateMicrocode = true;
-    };
+    cpu.amd.updateMicrocode = true;
 
     nvidia = {
       modesetting.enable = true;

users/common/configs/firefox/default.nix

@@ -1,8 +1,11 @@
-{ pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
 {
+  home-manager = {
+    sharedModules = [{
       programs.firefox = {
         enable = true;
+
         policies = {
           DisableTelemetry = true;
           DisableFirefoxStudies = true;
@@ -25,6 +28,7 @@
             "browser.translations.automaticallyPopup" = false;
           };
         };
+
         profiles.nick = {
           search = {
             default = "DuckDuckGo";
@@ -84,5 +88,11 @@
           };
         };
       };
+    }];
+
+    users = lib.attrsets.mapAttrs (user: config: ({
+      home.persistence."/persist${config.home}".directories = [ ".mozilla" ];
+    })) (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+  };
 }
 

users/common/configs/git/default.nix

@@ -1,6 +1,8 @@
-{ pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
 {
+  home-manager = {
+    sharedModules = [{
       programs.git = {
         enable = true;
         lfs.enable = true;
@@ -9,15 +11,25 @@
           key = null;
         };
         extraConfig.credential.helper = "store";
-    hooks = {
-      commit-msg = pkgs.writeScript "git-commit-msg" ''
-        #!${pkgs.runtimeShell}
-
+        hooks = let
+          commit-msg-hook = pkgs.writeShellScriptBin "git-commit-msg" ''
             git interpret-trailers --if-exists doNothing --trailer \
               "Signed-off-by: $(git config user.name) <$(git config user.email)>" \
               --in-place "$1"
           '';
+        in
+        {
+          commit-msg = "${commit-msg-hook}/bin/git-commit-msg";
         };
       };
+    }];
+
+    users = lib.attrsets.mapAttrs (user: config: ({
+      programs.git = {
+        userName = config.fullName;
+        userEmail = config.email;
+      };
+    })) (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+  };
 }
 

users/common/configs/gpg-agent/default.nix

@@ -1,24 +1,16 @@
-{ pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
 {
+  home-manager = {
+    sharedModules = [{
       services.gpg-agent = {
         enable = true;
         defaultCacheTtl = 31536000;
         maxCacheTtl = 31536000;
       };
 
-  systemd.user.services.gpg-agent-import = {
-    Unit = {
-      Description = "Auto-import GPG keys";
-      Requires = [ "sops-nix.service" "gpg-agent.socket" ];
-      After = [ "sops-nix.service" "gpg-agent.socket" ];
-    };
-
-    Service = {
-      Type = "oneshot";
-      ExecStart = pkgs.writeScript "import-gpg-keys" ''
-        #!${pkgs.runtimeShell}
-
+      systemd.user.services.gpg-agent-import = let
+        init = pkgs.writeShellScriptBin "import-gpg-keys" ''
           for keyfile in "$HOME"/.config/sops-nix/secrets/gpg-agent/*.key; do
             passfile="''${keyfile%.key}.pass"
 
@@ -36,8 +28,25 @@
           gpg --import-ownertrust "$HOME"/.gnupg/otrust.txt
           rm "$HOME"/.gnupg/otrust.txt
         '';
+      in
+      {
+        Unit = {
+          Description = "Auto-import GPG keys";
+          Requires = [ "sops-nix.service" "gpg-agent.socket" ];
+          After = [ "sops-nix.service" "gpg-agent.socket" ];
+        };
+
+        Service = {
+          Type = "oneshot";
+          ExecStart = "${init}/bin/import-gpg-keys";
         };
 
         Install = { WantedBy = [ "default.target" ]; };
       };
+    }];
+
+    users = lib.attrsets.mapAttrs (user: config: ({
+      systemd.user.tmpfiles.rules = [ "d ${config.home}/.gnupg 0700 ${user} users -" ];
+    })) (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+  };
 }

users/common/configs/hyprland/default.nix

@@ -1,4 +1,12 @@
+{ config, lib, pkgs, ... }:
+
 {
+  programs.hyprland.enable = true;
+
+  environment.sessionVariables.NIXOS_OZONE_WL = "1";
+
+  home-manager = {
+    sharedModules = [{
       wayland.windowManager.hyprland = {
         enable = true;
         settings = {
@@ -93,7 +101,32 @@
 
       programs.zsh.loginExtra = ''
         if [ -z "''${WAYLAND_DISPLAY}" ] && [ ! -z "''${XDG_VTNR}" ] && [ "''${XDG_VTNR}" -eq 1 ]; then
-      hyprland &> /tmp/hyprland.log
+          ${pkgs.hyprland}/bin/hyprland &> /tmp/hyprland.log
         fi
       '';
+
+      home.packages = with pkgs; [
+        swww
+        rofi-wayland
+        pavucontrol
+      ];
+    }];
+
+    users = lib.attrsets.mapAttrs (user: config: (
+      let
+        init = pkgs.writeShellScriptBin "hyprland-init" ''
+          ${pkgs.swww}/bin/swww-daemon &> /tmp/swww.log &
+
+          while ! ${pkgs.swww}/bin/swww query &> /dev/null; do
+            sleep 0.1
+          done
+
+          ${pkgs.swww}/bin/swww img ${config.wallpaper}
+        '';
+      in
+      {
+        wayland.windowManager.hyprland.settings.exec-once = "${init}/bin/hyprland-init";
+      }
+    )) (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+  };
 }

users/common/configs/kitty/default.nix

@@ -1,8 +1,10 @@
 {
+  home-manager.sharedModules = [{
     programs.kitty = {
       enable = true;
       extraConfig = ''
         confirm_os_window_close 0
       '';
     };
+  }];
 }

users/common/configs/neovim/default.nix

@@ -1,4 +1,5 @@
 {
+  home-manager.sharedModules = [{
     programs.neovim = {
       enable = true;
       defaultEditor = true;
@@ -12,5 +13,6 @@
         set smartindent
       '';
     };
+  }];
 }
 

users/common/configs/persist/default.nix

@@ -0,0 +1,28 @@
+{ config, inputs, lib, ... }:
+
+{
+  programs.fuse.userAllowOther = true;
+
+  systemd.tmpfiles.rules = [ "d /persist/home 0755 root root -" ] ++
+    lib.attrsets.mapAttrsToList (user: config: "d /persist${config.home} 0700 ${user} users -")
+      (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+
+  home-manager = {
+    sharedModules = [{ imports = [ inputs.impermanence.nixosModules.home-manager.impermanence ]; }];
+    users = lib.attrsets.mapAttrs (user: config: ({
+      home.persistence."/persist${config.home}" = {
+        allowOther = true;
+        directories = [
+          "Documents"
+          "Downloads"
+          "Music"
+          "Pictures"
+          "Videos"
+          "Templates"
+          "VMs"
+          "git"
+        ];
+      };
+    })) (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+  };
+}

users/common/configs/sops/default.nix

@@ -0,0 +1,17 @@
+{ config, inputs, lib, ... }:
+
+let
+  sopsKeyPath = ".config/sops-nix/key.txt";
+in
+{
+  environment.sessionVariables.SOPS_AGE_KEY_FILE = "$HOME/${sopsKeyPath}";
+
+  home-manager = {
+    sharedModules = [{ imports = [ inputs.sops-nix.homeManagerModules.sops ]; }];
+
+    users = lib.attrsets.mapAttrs (user: config: ({
+      home.persistence."/persist${config.home}".files = [ sopsKeyPath ];
+      sops.age.keyFile = "/persist${config.home}/${sopsKeyPath}";
+    })) (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+  };
+}

users/common/configs/stylix/default.nix

@@ -1,3 +1,17 @@
+{ config, inputs, lib, ... }:
+
 {
+  home-manager = {
+    sharedModules = [{
+      imports = [ inputs.stylix.homeManagerModules.stylix ];
       stylix.enable = true;
+    }];
+
+    users = lib.attrsets.mapAttrs (user: config: ({
+      stylix = {
+        image = config.wallpaper;
+        base16Scheme = config.base16Scheme;
+      };
+    })) (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+  };
 }

users/common/configs/zsh/default.nix

@@ -1,4 +1,8 @@
+{ config, lib, ... }:
+
 {
+  home-manager = {
+    sharedModules = [{
       programs.zsh = {
         enable = true;
         autocd = true;
@@ -10,4 +14,10 @@
         autosuggestion.enable = true;
         syntaxHighlighting.enable = true;
       };
+    }];
+
+    users = lib.attrsets.mapAttrs (user: config: ({
+      home.persistence."/persist${config.home}".directories = [ ".local/share/zsh" ];
+    })) (lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users);
+  };
 }

users/common/default.nix

@@ -1,108 +1,31 @@
 { config, inputs, lib, pkgs, ... }:
 
-let
-  normalUsers = lib.attrsets.filterAttrs (name: config: config.isNormalUser) config.users.users;
-in
 {
   imports = [
     inputs.home-manager.nixosModules.default
     ./extra.nix
+
+    ./configs/persist
+    ./configs/sops
+
+    ./configs/firefox
+    ./configs/git
+    ./configs/gpg-agent
+    ./configs/hyprland
+    ./configs/kitty
+    ./configs/neovim
+    ./configs/stylix
+    ./configs/zsh
   ];
 
-  programs = {
-    hyprland.enable = true;
-    fuse.userAllowOther = true;
-    dconf.enable = true;
-  };
-
-  environment.sessionVariables = {
-    NIXOS_OZONE_WL = "1";
-    SOPS_AGE_KEY_FILE = "$HOME/.config/sops-nix/key.txt";
-  };
-
   home-manager = {
     extraSpecialArgs = { inherit inputs; };
     backupFileExtension = "bak";
-
     sharedModules = [{
-      imports = [
-        inputs.impermanence.nixosModules.home-manager.impermanence
-        inputs.sops-nix.homeManagerModules.sops
-        inputs.stylix.homeManagerModules.stylix
-        ./configs/stylix
-        ./configs/hyprland
-        ./configs/git
-        ./configs/zsh
-        ./configs/neovim
-        ./configs/kitty
-        ./configs/firefox
-        ./configs/gpg-agent
-      ];
-
-      home = {
-        packages = with pkgs; [
-          rofi-wayland
-          swww
-          pavucontrol
-        ];
-
-        stateVersion = "24.05";
-      };
-
+      home.stateVersion = "24.05";
       systemd.user.startServices = "sd-switch";
     }];
-
-    users = lib.attrsets.mapAttrs' (user: config: lib.attrsets.nameValuePair
-      (user)
-      (let
-        init = pkgs.pkgs.writeShellScriptBin "hyprland-init" ''
-          ${pkgs.swww}/bin/swww-daemon &> /tmp/swww.log &
-
-          while ! swww query &> /dev/null; do
-            sleep 0.1
-          done
-
-          ${pkgs.swww}/bin/swww img ${config.wallpaper}
-        '';
-        in
-        {
-        home.persistence."/persist${config.home}" = {
-          directories = [
-            "Documents"
-            "Downloads"
-            "Music"
-            "Pictures"
-            "Videos"
-            "Templates"
-            "VMs"
-            "git"
-            ".mozilla"
-            ".local/share/zsh"
-          ];
-          files = [
-            ".config/sops-nix/key.txt"
-          ];
-          allowOther = true;
   };
 
-        sops.age.keyFile = "/persist${config.home}/.config/sops-nix/key.txt";
-
-        programs.git = {
-          userName = config.fullName;
-          userEmail = config.email;
-        };
-
-        stylix = {
-          image = config.wallpaper;
-          base16Scheme = config.base16Scheme;
-        };
-
-        wayland.windowManager.hyprland.settings.exec-once = "${init}/bin/hyprland-init";
-      })
-    ) normalUsers;
-  };
-
-  systemd.tmpfiles.rules = [ "d /persist/home/ 0755 root root -" ] ++ 
-    lib.attrsets.mapAttrsToList ( user: config: "d /persist${config.home} 0700 ${user} users -" ) normalUsers ++ 
-    lib.attrsets.mapAttrsToList ( user: config: "d ${config.home}/.gnupg 0700 ${user} users -" ) normalUsers;
+  programs.dconf.enable = true;
 }