add email notifications

not required to run aerc, uses imapnotify and notmuch/polybar

closes #10

modules/common/mail/default.nix

@@ -27,10 +27,8 @@
 
     home-manager.users.${config.user} = {
       programs.mbsync = { enable = true; };
-      services.mbsync = lib.mkIf pkgs.stdenv.isLinux {
-        enable = true;
-        frequency = "*:0/5";
-      };
+      services.imapnotify.enable = pkgs.stdenv.isLinux && config.physical;
+      programs.notmuch.enable = true;
       accounts.email = {
         maildirBasePath = "${config.homePath}/mail";
         accounts = {
@@ -55,10 +53,11 @@
               tls.enable = true;
             };
             imapnotify = {
-              enable = false;
-              boxes = [ ];
-              onNotify = "";
-              onNotifyPost = "";
+              enable = true;
+              boxes = [ "Inbox" ];
+              onNotify = "${pkgs.isync}/bin/mbsync -a";
+              onNotifyPost =
+                "${pkgs.libnotify}/bin/notify-send 'New mail arrived'";
             };
             maildir = { path = "main"; };
             mbsync = {
@@ -72,7 +71,7 @@
               };
             };
             mu.enable = false;
-            notmuch.enable = false;
+            notmuch.enable = true;
             passwordCommand =
               "${pkgs.age}/bin/age --decrypt --identity ${config.identityFile} ${
                 builtins.toString ../../../private/mailpass.age

modules/nixos/graphical/polybar.nix

@@ -36,7 +36,7 @@
             module-margin = 1;
             modules-left = "i3";
             modules-center = "xwindow";
-            modules-right = "pulseaudio date power";
+            modules-right = "mailcount pulseaudio date power";
             cursor-click = "pointer";
             cursor-scroll = "ns-resize";
             enable-ipc = true;
@@ -101,6 +101,22 @@
           # label-unmounted = "%mountpoint% not mounted";
           # label-unmounted-foreground = colors.disabled;
           # };
+          "module/mailcount" = {
+            type = "custom/script";
+            interval = 10;
+            format = "<label>";
+            exec = builtins.toString (pkgs.writeShellScript "mailcount.sh" ''
+              UNREAD=$(${pkgs.notmuch}/bin/notmuch count is:inbox and is:unread)
+              if [ $UNREAD = "0" ]; then
+                echo "%{T3}%{T-} "
+              else
+                echo "%{T2}%{T-} $UNREAD "
+              fi
+            '');
+            click-left =
+              "i3-msg 'exec --no-startup-id kitty --class aerc aerc'; sleep 0.15; i3-msg '[class=aerc] focus'";
+
+          };
           "module/pulseaudio" = {
             type = "internal/pulseaudio";
             # format-volume-prefix = "VOL ";