From 8a66310cf9733de2650f1661bd5fe280d9a3d46a Mon Sep 17 00:00:00 2001
From: Ales <ab@oxisoft.io>
Date: Tue, 9 Jul 2024 19:21:19 +0200
Subject: [PATCH] add support to expand env variables

---
 README.md | 2 +-
 config.go | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 328ad87..70dd39e 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ import (
 )
 
 func main() {
-	configPaths := []string{"./config", "/etc/myapp"}
+	configPaths := []string{"./config", "/etc/myapp", "$HOME/.myapp","."}
 	cfg, err := config.NewConfig("config.json", configPaths)
 	if err != nil {
 		log.Fatalf("Error loading config: %v", err)
diff --git a/config.go b/config.go
index a056300..6aa0563 100644
--- a/config.go
+++ b/config.go
@@ -16,7 +16,9 @@ type Config struct {
 func NewConfig(configName string, configPaths []string) (*Config, error) {
 	var configData map[string]interface{}
 	for _, path := range configPaths {
-		fullPath := filepath.Join(path, configName)
+		// Expand environment variables in the path
+		expandedPath := os.ExpandEnv(path)
+		fullPath := filepath.Join(expandedPath, configName)
 		if _, err := os.Stat(fullPath); err == nil {
 			file, err := os.ReadFile(fullPath)
 			if err != nil {