add support to expand env variables

oxisoft · Jul 9, 2024 · 8a66310 · 8a66310
1 parent 12eeabe
commit 8a66310
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git 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
@@ -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 {