home: emacs: add service to autoupdate spacemacs

1 files changed, 37 insertions, 4 deletions

diff --git a/home/config/emacs.nix b/home/config/emacs.nix
index c12f917..4b70090 100644
--- a/home/config/emacs.nix
+++ b/home/config/emacs.nix
@@ -1,6 +1,7 @@
-{ pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
-{
+let cfg = config.programs.emacs;
+in {
   programs.emacs = {
     enable = true;
     # package = pkgs.emacs.overrideAttrs (oldAttrs: rec { nativeComp = true; });
@@ -11,6 +12,38 @@
   };
 
   home.file.".spacemacs.d/init.el".source = ./dotfiles/spacemacs;
-  home.file.".emacs.d/private/layers/why3/local/why3.backup".source =
-    "${pkgs.why3}/share/emacs/site-lisp";
+
+  systemd.user = lib.mkIf cfg.enable {
+    services.update-spacemacs = {
+      Unit = {
+        Description = "Update Spacemacs by pulling the develop branch";
+        After = [ "network-online.target" ];
+        X-RestartIfChanged = true;
+      };
+
+      Service = {
+        Type = "oneshot";
+        WorkingDirectory = "${config.home.homeDirectory}/.emacs.d/";
+        ExecStart =
+          "${pkgs.git}/bin/git pull ; ${cfg.package}/bin/emacsclient --eval '(configuration-layer/update-packages)'";
+      };
+
+      Install.WantedBy = [ "default.target" ];
+    };
+    timers.update-spacemacs = {
+      Unit = {
+        Description = "Run Spacemacs update periodically";
+        After = [ "network-online.target" ];
+        X-RestartIfChanged = true;
+      };
+
+      Timer = {
+        Unit = "update-spacemacs.service";
+        Persistent = true;
+        OnCalendar = "daily";
+      };
+
+      Install.WantedBy = [ "default.target" ];
+    };
+  };
 }