From 8c43afa675ce63985665ac288aeaebe6699dbc17 Mon Sep 17 00:00:00 2001
From: Philipp Rosenkranz <ph.rosenkranz@gmail.com>
Date: Mon, 1 Apr 2019 13:35:03 +0200
Subject: [PATCH] config: merge new config keys into existing one before
 writing

---
 cmd-config.go | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/cmd-config.go b/cmd-config.go
index 045935c..6aa3c6b 100644
--- a/cmd-config.go
+++ b/cmd-config.go
@@ -27,6 +27,10 @@ var configCommand = &cobra.Command{
 		firstArgument := args[0]
 		configKey := firstArgument
 		containsEquals := strings.Index(firstArgument, "=") > 0
+		err := viper.ReadInConfig()
+		if err != nil {
+			_, _ = fmt.Fprintln(os.Stderr, err)
+		}
 		if containsEquals {
 			// write to config
 			configKeyValue := strings.Split(firstArgument, "=")
@@ -37,16 +41,16 @@ var configCommand = &cobra.Command{
 			if err != nil {
 				_, _ = fmt.Fprintln(os.Stderr, err)
 			}
+			err = viper.MergeInConfig()
+			if err != nil {
+				_, _ = fmt.Fprintln(os.Stderr, err)
+			}
 			err = viper.WriteConfigAs(filepath.Join(dir, configFileName))
 			if err != nil {
 				_, _ = fmt.Fprintln(os.Stderr, err)
 			}
 			return
 		}
-		err := viper.ReadInConfig()
-		if err != nil {
-			_, _ = fmt.Fprintln(os.Stderr, err)
-		}
 		configValue := viper.Get(configKey)
 		switch v := configValue.(type) {
 		case string: