use log.Fatal instead panic on config errors

cmd/gendoc.go

@@ -17,6 +17,7 @@ package cmd
 import (
 	"fmt"
 	"io/ioutil"
+	"log"
 
 	"github.com/dhax/go-base/api"
 	"github.com/go-chi/docgen"
@@ -67,8 +68,8 @@ func genRoutesDoc() {
 		Intro:       "GoBase REST API.",
 	})
 	if err := ioutil.WriteFile("routes.md", []byte(md), 0644); err != nil {
-		fmt.Print(err)
+		log.Println(err)
 		return
 	}
-	fmt.Print("OK\n")
+	fmt.Println("OK")
 }

cmd/root.go

@@ -16,6 +16,7 @@ package cmd
 
 import (
 	"fmt"
+	"log"
 	"os"
 
 	homedir "github.com/mitchellh/go-homedir"
@@ -76,8 +77,7 @@ func initConfig() {
 		// Find home directory.
 		home, err := homedir.Dir()
 		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
+			log.Fatal(err)
 		}
 
 		// Search config in home directory with name ".go-base" (without extension).

cmd/serve.go

@@ -15,6 +15,8 @@
 package cmd
 
 import (
+	"log"
+
 	"github.com/dhax/go-base/api"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -28,7 +30,7 @@ var serveCmd = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 		server, err := api.NewServer()
 		if err != nil {
-			panic(err)
+			log.Fatal(err)
 		}
 		server.Start()
 	},