refactor: ensure type, drop comment

pkg/config/app.go

@@ -1,7 +1,6 @@
 package config
 
 import (
-	"errors"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -112,17 +111,17 @@ func readAppEnvFile(appFile AppFile, name AppName) (App, error) {
 
 // newApp creates new App object
 func newApp(env AppEnv, name string, appFile AppFile) (App, error) {
-	// Checking for type as it is required - apps wont work without it
 	domain := env["DOMAIN"]
-	apptype, ok := env["TYPE"]
-	if !ok {
-		return App{}, errors.New("missing TYPE variable")
+
+	appType, exists := env["TYPE"]
+	if !exists {
+		return App{}, fmt.Errorf("%s is missing the TYPE env var", name)
 	}
 
 	return App{
 		Name:   name,
 		Domain: domain,
-		Type:   apptype,
+		Type:   appType,
 		Env:    env,
 		Server: appFile.Server,
 		Path:   appFile.Path,