added git-pull-timer service

flake.nix

@@ -79,6 +79,7 @@
                 impermanence.nixosModules.impermanence
                 nix-flatpak.nixosModules.nix-flatpak
                 stylix.nixosModules.stylix
+                self.nixosModules.git-pull-timer
                 {
                   nixpkgs.overlays = [
                     agenix.overlays.default
@@ -200,6 +201,7 @@
 
       nixosModules = {
         qbittorrent = import ./modules/qbittorrent.nix;
+        git-pull-timer = import ./modules/git-pull-timer.nix;
       };
     };
 }

hosts/modules/services.nix

@@ -18,6 +18,15 @@
           enable = true;
           settings.PermitRootLogin = "no";
         };
+        git-pull-timer = {
+          enable = true;
+          remoteAddresses = [
+            "git@github.com:baduhai/nix-config.git"
+            "https://github.com/baduhai/nix-config.git"
+          ];
+          user = "user";
+          group = "users";
+        };
         fwupd.enable = true;
         fstrim.enable = true;
       };

modules/git-pull-timer.nix

@@ -0,0 +1,158 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+with lib;
+
+let
+  cfg = config.services.git-pull-timer;
+in
+{
+  options.services.git-pull-timer = {
+    enable = mkEnableOption "git pull timer service";
+
+    onCalendar = mkOption {
+      type = types.listOf types.str;
+      default = [ "daily" ];
+      description = "OnCalendar options for the timer (systemd calendar format)";
+      example = [
+        "hourly"
+        "daily"
+        "*:0/30"
+      ];
+    };
+
+    onBoot = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable OnBootSec = 5min option for the timer";
+    };
+
+    persistent = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Persistent option for the timer (catch up missed runs)";
+    };
+
+    remoteAddresses = mkOption {
+      type = types.listOf types.str;
+      default = null;
+      description = "List of git remote addresses to try in order";
+      example = [
+        "git@github.com:user/repo.git"
+        "https://github.com/user/repo.git"
+      ];
+    };
+
+    directory = mkOption {
+      type = types.str;
+      default = "/etc/nixos";
+      description = "Directory where the git repository should be located";
+    };
+
+    user = mkOption {
+      type = types.str;
+      default = null;
+      description = "User to run the git operations as";
+    };
+
+    group = mkOption {
+      type = types.str;
+      default = null;
+      description = "Group to run the git operations as";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    assertions = [
+      {
+        assertion = cfg.remoteAddresses != null && cfg.remoteAddresses != [ ];
+        message = "services.git-pull-timer.remoteAddresses must be set and non-empty";
+      }
+      {
+        assertion = cfg.user != null;
+        message = "services.git-pull-timer.user must be set";
+      }
+      {
+        assertion = cfg.group != null;
+        message = "services.git-pull-timer.group must be set";
+      }
+    ];
+
+    systemd.services.git-pull-timer = {
+      description = "Pull git repository";
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStartPre = [
+          "+${pkgs.coreutils}/bin/mkdir -p ${cfg.directory}"
+          "+${pkgs.coreutils}/bin/chown -R ${cfg.user}:${cfg.group} ${cfg.directory}"
+        ];
+        ExecStart = pkgs.writeShellScript "git-pull-script" ''
+          set -e
+          cd ${cfg.directory}
+
+          # Check if this is a git repository
+          if ! ${pkgs.git}/bin/git rev-parse --git-dir > /dev/null 2>&1; then
+            echo "No git repository found, attempting to clone..."
+            
+            # Try each remote address in order
+            success=false
+            ${concatMapStringsSep "\n" (addr: ''
+              if [ "$success" = "false" ]; then
+                echo "Trying to clone from: ${addr}"
+                if ${pkgs.git}/bin/git clone ${addr} . 2>/dev/null; then
+                  echo "Successfully cloned from: ${addr}"
+                  success=true
+                else
+                  echo "Failed to clone from: ${addr}"
+                fi
+              fi
+            '') cfg.remoteAddresses}
+            
+            if [ "$success" = "false" ]; then
+              echo "All clone attempts failed"
+              exit 1
+            fi
+          else
+            echo "Git repository exists, pulling updates..."
+            
+            # Check if there are unstaged changes
+            if ! ${pkgs.git}/bin/git diff --quiet; then
+              echo "Unstaged changes detected, stashing..."
+              ${pkgs.git}/bin/git stash push -m "Auto-stash before pull $(date)"
+            fi
+            
+            # Check if there are staged changes
+            if ! ${pkgs.git}/bin/git diff --cached --quiet; then
+              echo "Staged changes detected, pulling with rebase..."
+              ${pkgs.git}/bin/git pull --rebase
+            else
+              echo "No staged changes, doing regular pull..."
+              ${pkgs.git}/bin/git pull
+            fi
+          fi
+        '';
+        User = cfg.user;
+        Group = cfg.group;
+      };
+      wants = [ "network-online.target" ];
+      after = [ "network-online.target" ];
+    };
+
+    systemd.timers.git-pull-timer = {
+      description = "Timer for git pull service";
+      timerConfig =
+        {
+          OnCalendar = cfg.onCalendar;
+          Persistent = cfg.persistent;
+        }
+        // optionalAttrs cfg.onBoot {
+          OnBootSec = "5min";
+        };
+      wantedBy = [ "timers.target" ];
+    };
+  };
+}