From 6b6a5f5e14d8bc7fd9c844648937c607f581b241 Mon Sep 17 00:00:00 2001
From: Martin Fischer <martin@push-f.com>
Date: Wed, 21 Oct 2026 19:24:47 +0200
Subject: tweak(ev): stop patching anki-sync-server

It takes too long to compile even on good hardware.
---
 nixos/hosts/ev/default.nix                               | 16 ++++++++++------
 .../patches/anki-sync-server-delete-exclusive-lock.patch | 12 ------------
 2 files changed, 10 insertions(+), 18 deletions(-)
 delete mode 100644 nixos/hosts/ev/patches/anki-sync-server-delete-exclusive-lock.patch

diff --git a/nixos/hosts/ev/default.nix b/nixos/hosts/ev/default.nix
index dc77416..bf64198 100644
--- a/nixos/hosts/ev/default.nix
+++ b/nixos/hosts/ev/default.nix
@@ -148,12 +148,6 @@ in
   age.secrets.anki-sync-server-martin.file = ./secrets/anki-sync-server-martin.age;
   services.anki-sync-server = {
     enable = true;
-    package = pkgs.anki-sync-server.overrideAttrs (old: {
-      patches = old.patches ++ [
-        # Patch to remove locking_mode=exclusive (see https://forums.ankiweb.net/t/69051).
-        ./patches/anki-sync-server-delete-exclusive-lock.patch
-      ];
-    });
     port = ports.ankiSyncServer;
     address = "0.0.0.0";
     users = [
@@ -246,6 +240,16 @@ in
     pruneOpts = ["--keep-daily 30" "--keep-weekly 8" "--keep-monthly 12"];
   };
 
+  # Anki opens its SQLite database with an exclusive lock.
+  systemd.services.restic-backups-sqlite-anki-martin = {
+    preStart = lib.mkBefore ''
+      ${pkgs.systemd}/bin/systemctl stop anki-sync-server.service
+    '';
+    postStop = lib.mkAfter ''
+      ${pkgs.systemd}/bin/systemctl start anki-sync-server.service
+    '';
+  };
+
   services.restic.backups = {
     media = {
       repository = "sftp://${backupHost}:23" + "/media";
diff --git a/nixos/hosts/ev/patches/anki-sync-server-delete-exclusive-lock.patch b/nixos/hosts/ev/patches/anki-sync-server-delete-exclusive-lock.patch
deleted file mode 100644
index fdb8990..0000000
--- a/nixos/hosts/ev/patches/anki-sync-server-delete-exclusive-lock.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff --git a/rslib/src/storage/sqlite.rs b/rslib/src/storage/sqlite.rs
-index 7f68496b4..e8f711941 100644
---- a/rslib/src/storage/sqlite.rs
-+++ b/rslib/src/storage/sqlite.rs
-@@ -62,7 +62,6 @@ fn open_or_create_collection_db(path: &Path) -> Result<Connection> {
- 
-     db.busy_timeout(std::time::Duration::from_secs(0))?;
- 
--    db.pragma_update(None, "locking_mode", "exclusive")?;
-     db.pragma_update(None, "page_size", 4096)?;
-     db.pragma_update(None, "cache_size", -40 * 1024)?;
-     db.pragma_update(None, "legacy_file_format", false)?;
-- 
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