Refactor config error message

INSTALL.md

@@ -2,7 +2,7 @@
 
 - Run `./listmonk --new-config` to generate a sample `config.toml` and add your configuration (SMTP and Postgres DB credentials primarily).
 - `./listmonk --install` to setup the DB.
-- Visit `http://localhost:9000`.
+- Run `./listmonk` and visit `http://localhost:9000`.
 
 ## Running on Docker
 

README.md

@@ -11,7 +11,7 @@ listmonk is a standalone, self-hosted, newsletter and mailing list manager. It i
 - Download the [latest release](https://github.com/knadh/listmonk/releases) and extract the listmonk binary somewhere.
 - Run `./listmonk --new-config` to generate a sample `config.toml` and add your configuration (SMTP and Postgres DB credentials primarily).
 - `./listmonk --install` to setup the DB.
-- Visit `http://localhost:9000`.
+- Run `./listmonk` and visit `http://localhost:9000`.
 - Since there is no user auth yet, it's best to put listmonk behind a proxy like Nginx and setup basicauth on all endpoints except for the few endpoints that need to be public. Here is a [sample nginx config](https://github.com/knadh/listmonk/wiki/Production-Nginx-config) for production use.
 
 ### Running on Docker

main.go

@@ -85,19 +85,22 @@ func init() {
 	// Generate new config.
 	if ok, _ := f.GetBool("new-config"); ok {
 		if err := newConfigFile(); err != nil {
-			fmt.Println(err)
+			logger.Println(err)
 			os.Exit(1)
 		}
-		fmt.Println("generated config.toml. Edit and run --install")
+		logger.Println("generated config.toml. Edit and run --install")
 		os.Exit(0)
 	}
 
 	// Load config files.
 	cFiles, _ := f.GetStringSlice("config")
 	for _, f := range cFiles {
-		log.Printf("reading config: %s", f)
+		logger.Printf("reading config: %s", f)
 		if err := ko.Load(file.Provider(f), toml.Parser()); err != nil {
-			log.Fatalf("error loadng config: %v", err)
+			if os.IsNotExist(err) {
+				logger.Fatal("config file not found. If there isn't one yet, run --new-config to generate one.")
+			}
+			logger.Fatalf("error loadng config: %v.", err)
 		}
 	}
 	ko.Load(posflag.Provider(f, ".", ko), nil)