From 6a3d22f3c766e9a87489db8774e3ebc81a999ebb Mon Sep 17 00:00:00 2001
From: Stefan Lew <admin@stefanlew.com>
Date: Tue, 26 May 2026 19:19:07 +0200
Subject: [PATCH] feat: add hooks.biome.settings.flags for extra CLI flags

Mirrors the existing 'black' hook pattern so users can pass arbitrary
CLI flags such as --no-errors-on-unmatched (commonly needed when staged
files are all excluded by biome's own config, e.g. dep-only or generated-
file-only commits).

Unblocks workarounds that override hooks.biome.entry via lib.mkForce.
---
 modules/hooks.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/modules/hooks.nix b/modules/hooks.nix
index d1bf0191..722580d9 100644
--- a/modules/hooks.nix
+++ b/modules/hooks.nix
@@ -216,6 +216,13 @@ in
               # underlying biome binary (i.e biome.json if exists)
               default = "";
             };
+
+            flags = mkOption {
+              type = types.str;
+              description = "Additional flags passed to biome. See all available [here](https://biomejs.dev/reference/cli/).";
+              default = "";
+              example = "--no-errors-on-unmatched";
+            };
           };
         };
       };
@@ -2669,6 +2676,7 @@ in
                 mkCmdArgs [
                   [ (hooks.biome.settings.write) "--write" ]
                   [ (hooks.biome.settings.configPath != "") "--config-path ${hooks.biome.settings.configPath}" ]
+                  [ (hooks.biome.settings.flags != "") hooks.biome.settings.flags ]
                 ];
             in
             "${binPath} check ${cmdArgs}";