From 44c5631943db44055d3619102d7de3f46e9eab7d Mon Sep 17 00:00:00 2001
From: Ulf Wiger <ulf@wiger.net>
Date: Mon, 27 Apr 2026 23:00:15 +0200
Subject: [PATCH] Add gmconfig:pur_update_config/3

---
 src/gmconfig.erl | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/gmconfig.erl b/src/gmconfig.erl
index 49082b5..de4db9f 100644
--- a/src/gmconfig.erl
+++ b/src/gmconfig.erl
@@ -38,6 +38,7 @@
 -export([update_config/1,
          update_config/2,
          update_config/3,
+         pure_update_config/3,
          silent_update_config/1,
          delete_config_value/1,
          suggest_config/2,
@@ -878,6 +879,12 @@ update_config(Map, ConfigMap, Mode) ->
     pt_set_config(ConfigMap1),
     ok.
 
+pure_update_config(Map, ConfigMap, Schema) ->
+    NewCfg = gmconfig_schema_utils:merge(Map, ConfigMap, Schema),
+    check_validation([validate_(NewCfg, Schema)],
+                     [NewCfg], pure_update_config, silent),
+    NewCfg.
+
 export_config() ->
     Config = pt_get_config(),
     JSON = json:format(Config, #{indent => 2}),