From 4906505d026cc8ea8187224606bafc59d1ab3ba3 Mon Sep 17 00:00:00 2001
From: "Brad P. Crochet" <brad@redhat.com>
Date: Thu, 11 Aug 2022 14:55:24 -0400
Subject: [PATCH] Add a DebugTo convenience funtion

One might want to write the debug information somewhere other than
Stdout. This patch adss a DebugTo function and method, that accepts
an io.Writer. It changes the original Debug implementation to call
this new function with a default of os.Stdout, which maintains
backward compatibility.

Signed-off-by: Brad P. Crochet <brad@redhat.com>
---
 viper.go | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/viper.go b/viper.go
index d6bbe62eae..17085ba791 100644
--- a/viper.go
+++ b/viper.go
@@ -2126,13 +2126,17 @@ func (v *Viper) getConfigFile() (string, error) {
 // Debug prints all configuration registries for debugging
 // purposes.
 func Debug() { v.Debug() }
+func DebugTo(w io.Writer) { v.DebugTo(w) }
 
-func (v *Viper) Debug() {
-	fmt.Printf("Aliases:\n%#v\n", v.aliases)
-	fmt.Printf("Override:\n%#v\n", v.override)
-	fmt.Printf("PFlags:\n%#v\n", v.pflags)
-	fmt.Printf("Env:\n%#v\n", v.env)
-	fmt.Printf("Key/Value Store:\n%#v\n", v.kvstore)
-	fmt.Printf("Config:\n%#v\n", v.config)
-	fmt.Printf("Defaults:\n%#v\n", v.defaults)
+func (v *Viper) Debug() { v.DebugTo(os.Stdout) }
+
+func (v *Viper) DebugTo(w io.Writer) {
+	fmt.Fprintf(w, "Aliases:\n%#v\n", v.aliases)
+	fmt.Fprintf(w, "Override:\n%#v\n", v.override)
+	fmt.Fprintf(w, "PFlags:\n%#v\n", v.pflags)
+	fmt.Fprintf(w, "Env:\n%#v\n", v.env)
+	fmt.Fprintf(w, "Key/Value Store:\n%#v\n", v.kvstore)
+	fmt.Fprintf(w, "Config:\n%#v\n", v.config)
+	fmt.Fprintf(w, "Defaults:\n%#v\n", v.defaults)
 }
+