anki: add module (#7274)

tests/modules/programs/anki/default.nix

@@ -0,0 +1,7 @@
+{ lib, pkgs, ... }:
+
+# Anki is currently marked as broken on Darwin (2025/06/23)
+lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
+  anki-minimal-config = ./minimal-config.nix;
+  anki-full-config = ./full-config.nix;
+}

tests/modules/programs/anki/full-config.nix

@@ -0,0 +1,57 @@
+{ pkgs, ... }:
+let
+  # This would normally not be a file in the store for security reasons.
+  testPasswordFile = pkgs.writeText "test-password-file" "password";
+in
+{
+  programs.anki = {
+    enable = true;
+    addons = [ pkgs.ankiAddons.passfail2 ];
+    answerKeys = [
+      {
+        ease = 1;
+        key = "left";
+      }
+      {
+        ease = 2;
+        key = "up";
+      }
+    ];
+    hideBottomBar = true;
+    hideBottomBarMode = "fullscreen";
+    hideTopBar = false;
+    hideTopBarMode = "always";
+    language = "en_US";
+    legacyImportExport = false;
+    minimalistMode = true;
+    reduceMotion = true;
+    spacebarRatesCard = true;
+    style = "native";
+    theme = "dark";
+    uiScale = 1.0;
+    videoDriver = "opengl";
+    sync = {
+      autoSync = true;
+      syncMedia = true;
+      autoSyncMediaMinutes = 15;
+      networkTimeout = 60;
+      url = "http://example.com/anki-sync/";
+      username = "lovelearning@email.com";
+      passwordFile = testPasswordFile;
+    };
+  };
+
+  nmt.script =
+    let
+      ankiBaseDir =
+        if pkgs.stdenv.hostPlatform.isDarwin then
+          "home-files/Library/Application Support/Anki2"
+        else
+          "home-files/.local/share/Anki2";
+    in
+    ''
+      assertFileExists "${ankiBaseDir}/prefs21.db"
+
+      assertFileExists "${ankiBaseDir}/gldriver6"
+    '';
+}

tests/modules/programs/anki/minimal-config.nix

@@ -0,0 +1,18 @@
+{ pkgs, ... }:
+{
+  programs.anki = {
+    enable = true;
+  };
+
+  nmt.script =
+    let
+      ankiBaseDir =
+        if pkgs.stdenv.hostPlatform.isDarwin then
+          "home-files/Library/Application Support/Anki2"
+        else
+          "home-files/.local/share/Anki2";
+    in
+    ''
+      assertFileExists "${ankiBaseDir}/prefs21.db"
+    '';
+}