Move config init to config

config/config.go

@@ -0,0 +1,49 @@
+package config
+
+import (
+	"fmt"
+	"os"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
+)
+
+const (
+	NAME    = "go-ma-actor"
+	VERSION = "v0.0.4"
+)
+
+func init() {
+
+	viper.SetConfigName(NAME)
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath(".")
+
+	viper.SetEnvPrefix(NAME)
+	viper.AutomaticEnv()
+
+	// Read the configuration file
+	err := viper.ReadInConfig()
+	if err != nil {
+		// Handle the error, e.g., file not found
+		log.Fatalf("Error reading config file: %s\n", err)
+	}
+
+	pflag.BoolP("version", "v", false, "Print version and exit.")
+	viper.BindPFlag("version", pflag.Lookup("version"))
+
+}
+
+// This should be done after flag.Parse() in main.
+func Init() {
+
+	if viper.GetBool("version") {
+		fmt.Println(VERSION)
+		os.Exit(0)
+	}
+
+	InitLogging()
+	InitNodeIdentity()
+	InitIdentity()
+}

main.go

@@ -8,28 +8,10 @@ import (
 	"github.com/bahner/go-ma-actor/p2p"
 	"github.com/bahner/go-ma-actor/ui"
 	"github.com/spf13/pflag"
-	"github.com/spf13/viper"
 
 	log "github.com/sirupsen/logrus"
 )
 
-func init() {
-
-	viper.SetConfigName(config.NAME)
-	viper.SetConfigType("yaml")
-	viper.AddConfigPath(".")
-
-	viper.SetEnvPrefix(config.NAME)
-	viper.AutomaticEnv()
-
-	// Read the configuration file
-	err := viper.ReadInConfig()
-	if err != nil {
-		// Handle the error, e.g., file not found
-		log.Fatalf("Error reading config file: %s\n", err)
-	}
-}
-
 func main() {
 
 	pflag.Parse()