From 4fdb135006305b8ec13c4d36376439ef65931008 Mon Sep 17 00:00:00 2001
From: Wolfgang Walther <walther@technowledgy.de>
Date: Wed, 20 Aug 2025 14:35:25 +0200
Subject: [PATCH] ci/treefmt: add biome for .js files

This excludes doc and pkgs folders, because there are way too many files
to fix at the moment.

(cherry picked from commit 9d5164bdb89b23103e8fb94d6f0bef75ac85f747)
---
 ci/default.nix | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/ci/default.nix b/ci/default.nix
index c75de0ff2b9a..0b24da8f170c 100644
--- a/ci/default.nix
+++ b/ci/default.nix
@@ -42,6 +42,22 @@ let
 
         programs.actionlint.enable = true;
 
+        programs.biome = {
+          enable = true;
+          settings.formatter = {
+            useEditorconfig = true;
+          };
+          settings.javascript.formatter = {
+            quoteStyle = "single";
+            semicolons = "asNeeded";
+          };
+          settings.json.formatter.enabled = false;
+        };
+        settings.formatter.biome.excludes = [
+          "doc/*"
+          "pkgs/*"
+        ];
+
         programs.keep-sorted.enable = true;
 
         # This uses nixfmt underneath,