feat: allow config from CHARM_CONFIG_HOMEconfig-home

closes #594
closes #495
closes #328
closes #475

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

2 files changed, 14 insertions, 0 deletions

diff --git a/config_cmd.go b/config_cmd.go
index 73aba54..00c6658 100644
--- a/config_cmd.go
+++ b/config_cmd.go
@@ -23,6 +23,12 @@ width: 80
 
 func defaultConfigFile() string {
 	scope := gap.NewScope(gap.User, "glow")
+	if c := os.Getenv("CHARM_CONFIG_HOME"); c != "" {
+		return filepath.Join(c, "glow.yml")
+	}
+	if c := os.Getenv("XDG_CONFIG_HOME"); c != "" {
+		return filepath.Join(c, "glow.yml")
+	}
 	path, _ := scope.ConfigPath("glow.yml")
 	return path
 }
diff --git a/main.go b/main.go
index b5f1537..573584a 100644
--- a/main.go
+++ b/main.go
@@ -395,6 +395,14 @@ func tryLoadConfigFromDefaultPlaces() {
 		os.Exit(1)
 	}
 
+	if c := os.Getenv("CHARM_CONFIG_HOME"); c != "" {
+		viper.AddConfigPath(c)
+	}
+
+	if c := os.Getenv("XDG_CONFIG_HOME"); c != "" {
+		viper.AddConfigPath(c)
+	}
+
 	for _, v := range dirs {
 		viper.AddConfigPath(v)
 	}