bat: support list settings and shell escaping

Fixes #2262

tests/modules/programs/bat/bat.nix

@@ -0,0 +1,43 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+  config = {
+    programs.bat = {
+      enable = true;
+
+      config = {
+        theme = "TwoDark";
+        pager = "less -FR";
+        map-syntax = [ "*.jenkinsfile:Groovy" "*.props:Java Properties" ];
+      };
+
+      themes.testtheme = ''
+        This is a test theme.
+      '';
+    };
+
+    nixpkgs.overlays =
+      [ (self: super: { bat = pkgs.writeScriptBin "dummy" ""; }) ];
+
+    nmt.script = ''
+      assertFileExists home-files/.config/bat/config
+      assertFileContent home-files/.config/bat/config ${
+        pkgs.writeText "bat.expected" ''
+          --map-syntax='*.jenkinsfile:Groovy'
+          --map-syntax='*.props:Java Properties'
+          --pager='less -FR'
+          --theme='TwoDark'
+        ''
+      }
+
+      assertFileExists home-files/.config/bat/themes/testtheme.tmTheme
+      assertFileContent home-files/.config/bat/themes/testtheme.tmTheme ${
+        pkgs.writeText "bat.expected" ''
+          This is a test theme.
+        ''
+      }
+    '';
+  };
+}

tests/modules/programs/bat/default.nix

@@ -0,0 +1 @@
+{ bat = ./bat.nix; }