From 3640bcdc46c4700a3f9546cc70e79f8a77c4ed36 Mon Sep 17 00:00:00 2001
From: Mark Sagi-Kazar <mark.sagikazar@gmail.com>
Date: Wed, 5 Jun 2024 09:26:25 +0200
Subject: [PATCH] feat: allow setting options on the global viper instance

Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>
---
 viper.go | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/viper.go b/viper.go
index 24e9d68..f5a3163 100644
--- a/viper.go
+++ b/viper.go
@@ -271,6 +271,23 @@ func NewWithOptions(opts ...Option) *Viper {
 	return v
 }
 
+// SetOptions sets the options on the global Viper instance.
+//
+// Be careful when using this function: subsequent calls may override options you set.
+// It's always better to use a local Viper instance.
+func SetOptions(opts ...Option) {
+	keyDelim := v.keyDelim
+
+	for _, opt := range opts {
+		opt.apply(v)
+	}
+
+	// reset encoding if key delimiter changed
+	if keyDelim != v.keyDelim {
+		v.resetEncoding()
+	}
+}
+
 // Reset is intended for testing, will reset all to default settings.
 // In the public interface for the viper package so applications
 // can use it in their testing as well.