Use env vars

cmd/refresh.go

@@ -20,7 +20,7 @@ var (
 
 func init() {
 	refreshCmd.Flags().IntVar(&interval, "interval", 15, "How long in minutes to wait before refreshing feeds")
-	viper.BindPFlag("refreshTimeoutMinutes", refreshCmd.Flags().Lookup("interval"))
+	viper.BindPFlag("REFRESH_TIMEOUT", refreshCmd.Flags().Lookup("interval"))
 
 	rootCmd.AddCommand(refreshCmd)
 }

internal/feeds/refresh.go

@@ -14,7 +14,7 @@ var fp = gofeed.NewParser()
 var feedStore = &FeedStore{}
 
 func Refresh() error {
-	interval := viper.GetInt("refreshTimeoutMinutes")
+	interval := viper.GetInt("REFRESH_TIMEOUT")
 
 	for {
 		fmt.Println("Refreshing feeds...")

internal/feeds/store.go

@@ -10,7 +10,7 @@ import (
 
 func (fs *FeedStore) getDB() *gorm.DB {
 	if fs.db == nil {
-		db, err := gorm.Open(sqlite.Open(viper.GetString("dbPath")), &gorm.Config{
+		db, err := gorm.Open(sqlite.Open(viper.GetString("DB_PATH")), &gorm.Config{
 			Logger: logger.Default.LogMode(logger.Error),
 		})
 		if err != nil {

main.go

@@ -10,24 +10,12 @@ import (
 func main() {
 	// Load config
 	setDefaultConfig()
-	viper.SetConfigName("config")
+	viper.AutomaticEnv()
-	viper.SetConfigType("yaml")
-	viper.AddConfigPath("$HOME/.gopherss")
-	viper.AddConfigPath(".")
-	if err := viper.ReadInConfig(); err != nil {
-		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
-			// Ignore
-		} else {
-			panic(err)
-		}
-	} else {
-		viper.WatchConfig()
-	}
 
 	cmd.Execute()
 }
 
 func setDefaultConfig() {
-	viper.SetDefault("refreshTimeoutMinutes", 15)
+	viper.SetDefault("REFRESH_TIMEOUT", 15)
-	viper.SetDefault("dbPath", "./feeds.db")
+	viper.SetDefault("DB_PATH", "./feeds.db")
 }