From f8a9228baa4f68c7639ef703e15f97bf146c53ee Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Thu, 13 Nov 2025 22:45:18 +0100
Subject: ...

---
 hosts/surtr/email/default.nix | 35 ++++-------------------------------
 1 file changed, 4 insertions(+), 31 deletions(-)

(limited to 'hosts/surtr')

diff --git a/hosts/surtr/email/default.nix b/hosts/surtr/email/default.nix
index b4b2b5c8..c09e1511 100644
--- a/hosts/surtr/email/default.nix
+++ b/hosts/surtr/email/default.nix
@@ -539,7 +539,7 @@ in {
 
     users.groups.${config.services.redis.servers.rspamd.user}.members = [ config.services.rspamd.user ];
 
-    environment.systemPackages = with pkgs; [ dovecot_pigeonhole dovecot_fts_xapian ];
+    environment.systemPackages = with pkgs; [ dovecot_pigeonhole dovecot-fts-flatcurve ];
     services.dovecot2 = {
       enable = true;
       enablePAM = false;
@@ -547,7 +547,7 @@ in {
       sslServerKey = "/run/credentials/dovecot.service/surtr.yggdrasil.li.key.pem";
       sslCACert = toString ./ca/ca.crt;
       mailLocation = "maildir:/var/lib/mail/%u/maildir:UTF-8:INDEX=/var/lib/dovecot/indices/%u";
-      mailPlugins.globally.enable = [ "fts" "fts_xapian" ];
+      mailPlugins.globally.enable = [ "fts" "fts_flatcurve" ];
       protocols = [ "lmtp" "sieve" ];
       sieve = {
         extensions = ["copy" "imapsieve" "variables" "imap4flags" "vacation" "vacation-seconds" "vnd.dovecot.debug"];
@@ -726,13 +726,10 @@ in {
         }
 
         plugin {
-          plugin = fts fts_xapian
-          fts = xapian
-          fts_xapian = partial=3 full=20 attachments=1 verbose=1
+          plugin = fts fts_flatcurve
+          fts = yes
 
           fts_autoindex = yes
-
-          fts_enforced = no
         }
 
         service indexer-worker {
@@ -741,30 +738,6 @@ in {
       '';
     };
 
-    systemd.services.dovecot-fts-xapian-optimize = {
-      description = "Optimize dovecot indices for fts_xapian";
-      requisite = [ "dovecot.service" ];
-      after = [ "dovecot.service" ];
-      startAt = "*-*-* 22:00:00 Europe/Berlin";
-      serviceConfig = {
-        Type = "oneshot";
-        ExecStart = "${getExe' pkgs.dovecot "doveadm"} fts optimize -A";
-        PrivateDevices = true;
-        PrivateNetwork = true;
-        ProtectKernelTunables = true;
-        ProtectKernelModules = true;
-        ProtectControlGroups = true;
-        ProtectHome = true;
-        ProtectSystem = true;
-        PrivateTmp = true;
-      };
-    };
-    systemd.timers.dovecot-fts-xapian-optimize = {
-      timerConfig = {
-        RandomizedDelaySec = 4 * 3600;
-      };
-    };
-
     environment.etc = {
       "dovecot/sieve_before.d/tag-junk.sieve".text = ''
         require ["imap4flags"];
-- 
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