nixos/meilisearch: use meilisearch_1_11 for stateVersion below 25.05 (#409336)

nixos/modules/services/search/meilisearch.nix

@@ -129,6 +129,22 @@ in
 
   config = lib.mkIf cfg.enable {
 
+    warnings = lib.optional (lib.versionOlder cfg.package.version "1.12") ''
+      Meilisearch 1.11 will be removed in NixOS 25.11. As it was the last
+      version not to support dumpless upgrades, you will have to manually
+      migrate your data before that. Instructions can be found at
+      https://www.meilisearch.com/docs/learn/update_and_migration/updating#using-a-dump
+      and afterwards, you can set `services.meilisearch.package = pkgs.meilisearch;`
+      to use the latest version.
+    '';
+
+    services.meilisearch.package = lib.mkDefault (
+      if lib.versionAtLeast config.system.stateVersion "25.05" then
+        pkgs.meilisearch
+      else
+        pkgs.meilisearch_1_11
+    );
+
     # used to restore dumps
     environment.systemPackages = [ cfg.package ];
 

pkgs/by-name/me/meilisearch/package.nix

@@ -4,10 +4,24 @@
   fetchFromGitHub,
   nixosTests,
   nix-update-script,
+  version ? "1.14.0",
 }:
 
 let
-  version = "1.14.0";
+  # Version 1.11 is kept here as it was the last version not to support dumpless
+  # upgrades, meaning NixOS systems that have set up their data before 25.05
+  # would not be able to update to 1.12+ without manual data migration.
+  # We're planning to remove it towards NixOS 25.11. Make sure to update
+  # the meilisearch module accordingly and to remove the meilisearch_1_11
+  # attribute from all-packages.nix at that point too.
+  hashes = {
+    "1.14.0" = "sha256-nPOhiJJbZCr9PBlR6bsZ9trSn/2XCI2O+nXeYbZEQpU=";
+    "1.11.3" = "sha256-CVofke9tOGeDEhRHEt6EYwT52eeAYNqlEd9zPpmXQ2U=";
+  };
+  cargoHashes = {
+    "1.14.0" = "sha256-8fcOXAzheG9xm1v7uD3T+6oc/dD4cjtu3zzBBh2EkcE=";
+    "1.11.3" = "sha256-cEJTokDJQuc9Le5+3ObMDNJmEhWEb+Qh0TV9xZkD9D8=";
+  };
 in
 rustPlatform.buildRustPackage {
   pname = "meilisearch";
@@ -17,13 +31,13 @@ rustPlatform.buildRustPackage {
     owner = "meilisearch";
     repo = "meiliSearch";
     tag = "v${version}";
-    hash = "sha256-nPOhiJJbZCr9PBlR6bsZ9trSn/2XCI2O+nXeYbZEQpU=";
+    hash = hashes.${version};
   };
 
   cargoBuildFlags = [ "--package=meilisearch" ];
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-8fcOXAzheG9xm1v7uD3T+6oc/dD4cjtu3zzBBh2EkcE=";
+  cargoHash = cargoHashes.${version};
 
   # Default features include mini dashboard which downloads something from the internet.
   buildNoDefaultFeatures = true;

pkgs/top-level/all-packages.nix

@@ -16280,6 +16280,8 @@ with pkgs;
     icu = icu71;
   };
 
+  meilisearch_1_11 = callPackage ../by-name/me/meilisearch/package.nix { version = "1.11.3"; };
+
   mongocxx = callPackage ../development/libraries/mongocxx/default.nix { };
 
   muse = libsForQt5.callPackage ../applications/audio/muse { };